Les Rencontres de l'Observatoire 2004

The Three Dimensional Universe with Gaia
Observatoire de Paris-Meudon
4-7 October 2004

                              

Notices

The deadline for submission of papers for the printed proceedings is 12 November 2004, 18:00 CET. See Proceedings for further details.

2004-10-13:A report of the Symposium has been prepared by the Chairs of the Scientific Organising Committee. It is available online.

2004-09-23: A Final Announcement containing some practical information for participants of the Symposium is now available. It includes details on how to deliver material for the invited and oral presentations, transport from Paris to Meudon, network connections during the Symposium and the social dinner. See the Final Announcement link.

2004-09-20: Registration is now closed. The list of participants, including those on the waiting list, has been finalised.

2004-09-03: The registration list for the Symposium is now full and a waiting list has been opened. If you register now your name will be placed on the waiting list. If places become available you will be informed personally in the next few weeks.

2004-08-20: For security and logistical reasons a maximum of 230 participants may be registered for the Symposium. Once this limit has been exceeded a waiting list will be opened for individuals who still wish to register for the Symposium. If places later become available they will be filled from the waiting list.

2004-08-16: A complete list of abstracts for all invited, oral and poster contributions is now available online.

2004-08-09: Instructions for preparing papers for the published proceedings have been added. See here for details.

2004-07-01: The programme for the Symposium has been finalised. See here for details.

2004-05-01: The closing date for grant applications has passed. No more applications will be accepted.

2004-03-04: A list of recommended hotels is now available here.

2004-02-16: Early registration for the Symposium at a preferential rate is open from mid-February to 31 May 2004. Registration at the normal rate will run from 01 June to 15 September 2004. Click on the Registration link and complete the online forms.

Students and young researchers: You can apply for a grant which will (partially or completely) cover the registration fees, your travel costs and a per diem for your stay. Click on Registration and follow the instructions.

The Three Dimensional Universe with Gaia - Introduction

Les Rencontres de l'Observatoire 2004 are dedicated to a Symposium on "The Three Dimensional Universe with Gaia". It will take place at the Observatoire de Paris, at the Meudon site, building 18 (LAM), from 4 to 7 October 2004.

The date chosen for this Symposium corresponds to the end of the definition phase of Gaia. The purposes of this Symposium are:

  • to present to the scientific community the design chosen for the mission, the final characteristics and performances, and to update the resulting scientific case
  • to bring to the attention of the scientific community the extraordinary potential of Gaia and to share with the younger generation of scientists the expertise acquired during the preparation phases of the Gaia mission, and during all phases of the Hipparcos mission. Students and young researchers are particularly welcome
  • to organise the next phase of scientific preparation of the mission, in particular the data reduction which constitutes a major challenge with a petabyte of interconnected data which has to be treated in a global and iterative manner, and to prepare for the scientific exploitation of the data.
The Symposium is open to scientists working on the preparation of Gaia and to the large community interested in using the data from the mission.

The invited presentations will be selected by the Scientific Organising Committee and the International Advisory Committee.

A call for contributions and posters, is included in the registration form. The selection will be made by the Committees in June 2004.


Practical information for all participants to the Symposium

1) Registration on Sunday 3 October (afternoon)
Material for the symposium (bags, badges, maps, lunch tickets, invitation to social dinner, book of abstract etc.) may be collected on Sunday 3 October, from 14:00 to 19:00, at the Observatoire de Paris, in Bâtiment Perrault (the main building with the white dome), in Salle du Conseil which is located at the ground floor. (This material can also be collected on Monday 4 October during the pause in the morning session at the Symposium.)

Please note: The entrance is located at 77 Avenue Denfert-Rochereau (Paris 14ème, metro Port Royal or Denfert-Rochereau). There is a bell to call the guard. A list of participants will be given to him and he will ask your name. The "Salle du Conseil" is about 300 m from the entrance, at the same level, left side of Batiment Perrault.

2) From Paris to the Amphitheatre of Meudon Observatory
- From the main railway station "Montparnasse" to "Bellevue": take the omnibus train, direction Sèvres or Sèvres R.G. (Rive Gauche). There is one train every 15 min and the journey takes 12 min. Bellevue is the 4th station, after Vanves-Malakoff, Clamart and Meudon.

- From the SNCF railway station "Bellevue" to the amphitheatre of Meudon Observatory: buses will wait for participants in front of the station, at the times given below. (If you miss the train, there will be no bus!).

Monday 4, Tuesday 5 and Wednesday 6 October:
departure from gare Montparnasse: 8h 39. Arrival Bellevue 8h 51.

Thursday 7 October:
departure from gare Montparnasse: 9h 09. Arrival Bellevue 9h 21.

- In the evening, after the sessions, a bus will bring participants to the Bellevue train station.

3) Transportation tickets
Mixed tickets, metro + bus + RER + train (RATP + SNCF) are available in Paris, in any metro (RATP) or railway (SNCF) station. We recommend you buy this kind of ticket. Two of them are very convenient: "Mobilis" (daily ticket) or "Paris Visite" (Tickets for 1, 2 3 or 5 days). Meudon is in the suburbs (zone 3), which means that you must buy tickets for zones 1 to 3.

More information (in English) can be found at http://www.transport-idf.com, or http://www.ratp.fr/.

4) Social dinner
The social dinner will take place on a "bateau mouche", on Wednesday 6 October, from 8 pm to 1 am. Participants are expected to embark promptly at 19h30. Invitation and information about how to get there are given with the symposium material. The bateau mouche is called "Bel Ami" and belongs to the Society Bleu Seine.

Important: Please inform the LOC (yves.viala@obspm.fr) in any of the following cases:
· you will not participate in the social dinner
· you want a vegetarian meal
· you are allergic to a particular product.

5) Computing facilities and connection to the network
A room with a few PC and MacIntosh computers (with DHCP servers) will be available to participants. It will also be possible to connect your personal computer to the network, equipped with a DHCP server. The room is located very near (100 m) to the amphitheatre (building 18), in building 15 (Computing Centre: SIO, see map on Symposium website or at the Meudon website ) and will be open from 9 am to 6 pm.

6) Posters
The total number of posters is 99! Depending on the number of supports that will be available there will be one or two poster sessions and/or one or two rooms where they will be displayed. Labelling of posters will follow the order of the book of abstracts. Poster size: typically A0, i.e. 84 x 120 cm, portrait format.

7) Invited and Contributed Talks
To avoid loss of time between talks, all speakers will have to install their presentations in advance on a computer devoted to the symposium. Please put your name on the file containing your talk and use an extension corresponding to the software used to create it (for example: viala.ppt, viala.pdf, etc). If you use more exotic software, or have special requirements, please inform the LOC!

If your presentation is ready before the start of the Symposium, please send it as an attached document to yves.viala@obspm.fr. This is the preferred option!

If the document is too large (more than 5-10 Mb), it is preferable to put it on the anonymous FTP site of the Paris Observatory.

Connect to: ftp.obspm.fr, user: anonymous, passwd: your electronic address.
Put your file on /incoming/gaia and inform the LOC (name of file, type of file…) by sending a mail to yves.viala@obspm.fr.

More information on using the anonymous ftp (in French) at: http://www.obspm.fr/~websio/fichiersHTML/Fiches/base/ftpanonyme.html).

You can also provide us with a copy of your talk on a CD Rom or USB memory stick, in advance of the session in which you are invited to talk.
Even if you have sent your talk in advance, please keep an electronic copy of your talk and bring it with you.

8) Proceedings
Instructions for the processing are available from the web site of the Symposium, along with the LaTeX template. Page allocation: 8 pages for an oral contribution, 4 pages for a poster. Deadline for receipt of papers is 12 November 2004.

 


Objectives

The Gaia mission is one of the most ambitious space experiments in the European Space Agency's Science Programme. Designed after the remarkable success of the European mission Hipparcos, the first ever space astrometry mission, Gaia will provide unprecedented positional and radial velocity measurements with the accuracies needed to produce a stereoscopic and kinematic census of about one billion stars in our Galaxy and throughout the Local Group, about 1 percent of the Galactic stellar population. The survey aims at completeness up to visual magnitude of V = 20 mag, with astrometric accuracies of 10 microarcsec at 15 mag.

Combined with astrophysical information for each star, provided by on-board multi-colour photometry and spectroscopic measurements, these data will have the precision and depth necessary to clarify the origin and history of our Galaxy from a quantitative census and multi-parameter characterisation of the stellar populations. Additional products include detection and characterisation of tens of thousands of extra-solar planetary systems, a comprehensive survey of some 100,000 to 1 million minor bodies in our Solar System (including near-Earth objects), observation of galaxies in the nearby Universe and of some 500 000 quasars, and stringent new tests of general relativity and cosmology.

Gaia has been selected as a Cornerstone of the ESA Science Programme in October 2000, and confirmed as a flagship of the new ESA Science Programme “Cosmic Vision 2020” in May 2002. From that date, in-depth studies have been progressing in many of the scientific areas of relevance to the system design, as well as the definition of the radial velocity spectrometer and in the development of a prototype data analysis system. In parallel, technical studies have been initiated, aiming to reach, by the end of 2004, full confidence in the feasibility of the Gaia project, and detailed understanding and control of all critical technologies required to build and operate the mission, and analyse its data.

October 2004 is a timely opportunity to fully review the progress that will have been made, following the completion of these multifaceted studies. The goal of the meeting is to present the design chosen for the Gaia mission and its performances, to update the science case, and to organise the next stages for the scientific preparation of the mission.


Final Symposium Programme

The Symposium will begin at 09:30 on Monday 4 October and is scheduled to close on Thursday 7 October at 16:00. Please check the programme for details of opening and closing times for the daily sessions.


The Scientific Organising Committee has selected the invited and oral contributions to be presented. They are listed below. The list of all contributions (invited, oral and poster) can be found here. A list of abstracts, organised per session, is available here.


Monday 4 October

1. Overview of the mission, design, and scientific performances

Chair: Daniel Egret

  9:30   (15m)    Opening of the Symposium - Jean Kovalevsky
  9:45   (25m)      1.1 Overall scientific objectives - François Mignard
10:10   (25m)      1.2 Overview of the Gaia mission - Michael Perryman
10:35   (25m)      1.3 Satellite and development - Oscar Pace

coffee 11:00 - 11:30

11:30   (25m)      1.4 Astrometric instrument: principles - Lennart Lindegren
11:55   (20m)      1.5 Accuracy budget and performances - Jos de Bruijne
12:15   (25m)      1.6 Photometric system design and performances - Carme Jordi
12:40   (25m)      1.7 Radial Velocity Spectrometer design and performance - David Katz

lunch 13:05 - 14:15

2. Galaxy census, formation and evolution

Chair: Karri Muinonen

14:15  (15m)      2.1 Gaia in the ESA Science Programme - David Southwood
14:30  (25m)      2.2 Census and completeness - Annie Robin
14:55  (25m)      2.3 Dynamical models of the Galaxy - James Binney
15:20  (25m)      2.4 Census of binaries - the big picture - Staffan Söderhjelm
15:45  (20m)      2.5 ISM, extinction and star forming regions - Jens Knude
16:05  (20m)      2.6 Galactic disk and bulge - Antonella Vallenari

coffee 16:25 - 16:55

16:55 (25m)      2.7 Chemical evolution of the Galaxy - Poul Erik Nissen
17:20 (40m)      Contributions
    17:20 (10m)     Revisiting the concept of superclusters - Benoit Famaey et al.
    17:30 (10m)     Age, metallicity, distance and reddening of single stellar populations - D. Valls Gabaud and X. Hernandez
    17:40 (10m)     Mapping the interstellar extinction in three dimensions - Douglas Marshall, Annie C. Robin and Céline Reylé
    17:50 (10m)     The Galactic bulge as seen by Gaia - Céline Reylé et al.
18:00 (20m)      Poster summary - David Katz
18:20 End

Tuesday 5 October

3. Relativity, Solar System, Exo-planets

Chair: James Binney

  9:30  (25m)      3.1 Relativistic formulation and reference frame - Sergei Klioner
  9:55  (20m)      3.2 Limits: surface structure, microlensing, binarity - Ulrich Bastian
10:15  (25m)      3.3 Asteroid orbits with Gaia - Karri Muinonen et al.
10:40  (20m)      3.4 Gaia observations of asteroids: sizes, taxonomy, shapes and spin properties - Alberto Cellino et al.

coffee 11:00 - 11:30

11:30  (20m)     3.5 Near-Earth objects - Erik Høg
11:50  (25m)     3.6 Impact of Gaia on dynamics/evolution of the Solar System - Paolo Tanga
12:15  (25m)     3.7 Characteristics and formation of exo-planetary systems - Didier Queloz
12:40  (25m)     3.8 Exo-planetary systems: detection, transits - Mario Lattanzi

lunch 13:05 - 14:15

14:15  (20m)      Poster summary - Ulrich Bastian
14:35  (30m)      Contributions
    14:35 (10m)            Methods of Relativistic Astrometry: the RAMOD project - Fernando de Felice
    14:45 (10m)            Stellar wobble in triple systems mimicking a planet - Jean Schneider
    14:55 (10m)            The study of stars with planets - Giusa Cayrel De Strobel

 
4. Technical issues, data simulation, reduction and processing

Chair: Carla Cacciari

15:10 (20m)       4.1 On-board detection, data handling, completeness - Frédéric Arenou et al.
15:30 (20m)       4.2 Astrometric instrument CCDs and focal plane - Alex Short

coffee 15:50 - 16:20

16:20  (20m)      4.3 Radial velocity spectrometer technical issues - Mark Cropper and RVS Consortium
16:40  (25m)      4.4 Modeling the instruments and simulating the data stream - Xavier Luri, Carine Babusiaux and Eduardo Masana
17:05  (25m)      4.5 Design and overview of the data processing - Jordi Torra
17:30  (20m)      4.6 Data processing: core tasks - Francesca Figueras and GDAAS team
17:50  (20m)      4.7 Photometric data analysis - Anthony Brown et al.

18:10 End

Wednesday 6 October

  9:30  (20m)       4.8 Science alerts - Wyn Evans
  9:50  (20m)       4.9 Object classification and the determination of stellar parameters- Coryn Bailer-Jones
10:10  (20m)       Poster summary for sessions 1 and 4 - François Mignard
10:30  (20m)      Contributions
    10:30 (10m)            Applying Grid Technology to Gaia Data Processing - Salim Ansari et al.
    10:40 (10m)            First-Look processing - Stefan Jordan et al.

coffee 10:50 - 11:20

5. Stars: laboratories and tracers

Chair: Poul Erik Nissen

11:20  (25m)     5.1 Stellar structure and atmospheres - Yveline Lebreton
11:45  (25m)     5.2 Atmospheric parameters, Alpha elements and stellar evolution - Alejandra Recio-Blanco and Frédéric Thévenin
12:10  (25m)     5.3 Duplicity and masses - Dimitri Pourbaix
12:35  (25m)     5.4 Variability: detection and classification - Laurent Eyer
 
lunch 13:00 - 14:15

14:15  (20m)     5.5 Metallicities and ages in disk populations - Misha Haywood
14:35  (25m)     5.6 First results from the RAVE spectral survey - Ulisse Munari and Tomaz Zwitter
15:00  (20m)      Poster summary - Michel Breger
15:20  (30m)      Contributions
    15:20 (10m)            Determination of stellar rotation with Gaia and effects of spectral mismatch- Andreja Gomboc and David Katz
    15:30 (10m)            Emission line stars in the framework of Gaia - Indrek Kolka et al.
    15:40 (10m)            The role of C, N, O and alpha-process elements - G. Tautvaisiene and B. Edvardsson

 15:50 End

Evening: Symposium Dinner

Thursday 7 October

6. The Galaxy and beyond

Chair: Catherine Césarsky

10:00  (25m)      6.1 Stellar clusters, IMF and intracluster dynamics - Pavel Kroupa
10:25  (20m)      6.2 Crowded fields in the Milky Way and beyond - Carine Babusiaux
10:45  (25m)      6.3 The oldest stars and early Universe - Monique Spite, Roger Cayrel and the LP "First Stars" members

coffee 11:10 - 11:40

11:40 (25m)      6.4 Dark matter in the Local Group - Mark Wilkinson
12:05 (20m)      6.5 Variable stars as standard candles and stellar tracers - Giuseppe Bono
12:25 (20m)      6.6 Quasars: identification and astrophysical parameters - Jean-François Claeskens et al.

lunch 12:45 - 14:15

14:15  (20m)      Poster summary - Xavier Luri
14:35  (30m)      Contributions
    14:35 (10m)            The determination of proper motions in the Galaxy - Jean Kovalevsky
    14:45 (10m)            Globular cluster kinematics with Gaia - Holger Baumgardt and Pavel Kroupa
    14:55 (10m)            Mapping halo debris: The influence of live dark matter potentials - Stuart Gill et al.

15:10  (30m)            Concluding Remarks: Gaia and astrophysics in 2015-20 - Tim de Zeeuw

16:00 End of Symposium
Organising Committees

Scientific Organising Committee
Honorary Chair: Adriaan Blaauw
Catherine Turon (Chair), Michael Perryman (Co-Chair)

Frédéric Arenou,   Coryn Bailer-Jones,   Ulrich Bastian,   Erik Høg,   Andrew Holland,
Carme Jordi,   David Katz,   Mario Lattanzi,   Floor van Leeuwen,
Lennart Lindegren,    Xavier Luri,   François Mignard

International Advisory Committee
Conny Aerts (Leuven),    Bo Anderson (Oslo),   Xavier Barcons (Santander),
Antonella Barucci (Paris-Meudon),    James Binney (Oxford),    Michel Breger (Vienna), Carla Cacciari (Bologna),
Catherine Cesarsky (ESO),    Cesare Chiosi (Padova),    Daniel Egret (Paris),    Ken Freeman (Mt. Stromlo),
Gerry Gilmore (Cambridge),    Michel Grenon (Geneva),    Bengt Gustaffson (Uppsala),
Michel Mayor (Geneva),    Brian McBreen (Dublin),    Karri Muinonen (Helsinki),    Poul Erik Nissen (Aarhus),
Jean-Loup Puget (Orsay),    Hans-Walter Rix (Heidelberg),    José Miguel Rodríguez Espinosa (IAC),
Michael Soffel (Dresden),   Scott Tremaine (Princeton),    Pedro Viana (Porto),    Tim de Zeeuw (Leiden)

Local Organising Committee
Yves Viala (Chair)
Olga Martins,    Annick Oger,    Françoise Crifo,
Alain Doressoundiram,    Daniel Hestroffer,    Annie Spielfieldel

Web & Proceedings
Karen O'Flaherty


Registration

All Symposium participants must register using the registration tools below. Early registration (at a reduced rate) is open until 31 May 2004. Participants registering after this date must pay the full fee. Latest date for registration was 15 September 2004. The registration list for the Symposium is now full.

Symposium fees
Early registration (before 31 May 2004), CNRS employees  Euro 125
Early registration (before 31 May 2004), other participants  Euro 150
 
Late registration (until 15 September 2004), CNRS employees  Euro 170
Late registration (until 15 September 2004), other participants  Euro 200

Fees include: the book of abstracts, conference proceedings, lunch at the Observatoire de Paris-Meudon restaurant for the duration of the Symposium, coffee breaks, transportation (between the hotels and the Observatoire) and participation in the social dinner.

Fees will be accepted in Euro only. Payment can be made by credit card, bank transfer, personal check or bank draft - details can be found on the registration form which is accessible via the registration tools below.

Accomodation Attendees at the Symposium must arrange their own accomodation. The Local Organising Committee has reserved a number of rooms at reduced rates in some Paris hotels. Further details are available in English and French.

Dates to note
Date Comment
16 February 2004 Early registration opens
30 April 2004 Closing date for grant applications
30 May 2004 List of accepted grant applications issued
31 May 2004 Early registration closes
01 June 2004 Late registration opens
15 June 2004 Deadline for submission of abstracts
15 September 2004 Late registration closes

Registration tools
For security and logistical reasons a maximum of 230 participants may be registered for the Symposium. The registration list for the Symposium is now full.
Registration is now closed (2004-09-16) Use this to access the registration form when you register for the first time. You will be asked to supply an email address and password which will allow you to modify your details, or to add an abstract, at a later date if necessary.
Modify your details To modify details of your existing entry choose this. You will need to supply your email address and password to verify your identity.
List of registered participants To see who has already registered.
List of abstracts List of submitted abstracts
Forgotten your password? If you have forgotten your password you can send an email to request a reminder!
Problems with registration? If you have difficulties with registering or questions about the registration form you can contact the Local Organising Committee.
On the registration form you will be asked to provide your contact details, to indicate the method of payment of registration fees, and to provide abstracts for up to two presentations (oral or poster) which you wish to propose. The deadline for submission of abstracts is 15 June 2004. (Abstracts can be written in plain text or using standard LaTeX syntax. The maximum number of words, including title and authors, is 300.) The advisory committees will make the final selection of papers and posters in June 2004.

 


Accomodation

Attendees at the Symposium must make their own accomodation arrangements, with the exception of young researchers and students who have received a grant from the Scientific Organising Committee to attend the Symposium - their accomodation will be arranged by the Local Organising Committee.

The Local Organising Committee has prepared a list of recommended hotels in which block bookings have been reserved for people attending the Symposium. This list is available here.

Important note: You are strongly advised to book your accomodation as soon as possible. The dates for the Gaia Symposium coincide with the "Salon de l'Automobile" exhibition in Paris - one of the most important events in Paris this year which is expected to attract many visitors. (The date for this was only recently announced - long after the date for the Symposium had been fixed!) There is a strong possibility that most hotels in Paris will be quickly booked up for this period.

Getting to Meudon

The Symposium is held at the Meudon site of the Paris Observatory, in the amphitheatre of building 18 (LAM) - see campus map. Information on how to get there is available here.



Hotel accomodation

Please note: You are strongly advised to book your accomodation as soon as possible. The dates for the Gaia Symposium coincide with the "Salon de l'Automobile" exhibition in Paris - one of the most important events in Paris this year which is expected to attract a lot of visitors. There is a strong risk that most hotels in Paris will be quickly booked up for this period.

Note for those in receipt of a grant from the SOC: For young researchers and students who have received a grant from the Scientific Organising Committee to attend the Symposium, the accomodation will be arranged by the Local Organising Committee.

Hotels recommended by the LOC

Hereafter is a list of hotels which have agreed with the Local Organizing Committee to offer some accomodation at reduced costs. To receive the reduced rates, you must indicate "Colloque Gaia 2004" in your booking form. You can book by phone, fax, e-mail and, in most cases, through the web. A number of rooms (an estimate is given in parenthesis beside the hotel name) are pre-reserved for the Gaia Symposium, but only during the next few weeks.
These hotels are situated in convenient places for getting to the Symposium (city districts south of Paris near both Gare Montparnasse and Observatoire de Paris, southwest suburbs of Paris such as Meudon, Sèvres…).
As far as possible, this list will be continuously updated.

Hotel CAMPANILE MAINE MONTPARNASSE (**) (25 rooms reserved)
146, Avenue du Maine - 75014 PARIS. (Metro : Alésia or Mouton-Duvernet)
Rooms: Single: 69 Euros; Double: 75 Euros. Breakfast: 6.80 Euros
Phone: 33 (0)1 53 74 60 00 – Fax: 33 (0)1 40 47 01 49
e-mail: campanile.mainemontparnasse@wanadoo.fr
website: Campanile hotel group [http://www.campanile.fr]
Note: 700 meters from Montparnasse Station. Quartier Montparnasse. Close to Quartier Latin, Luxembourg, Saint Germain des Pres.

Hotel AROTEL (**) (25 rooms reserved)
74, Boulevard Edgar Quinet - 75014 PARIS. (Metro : Edgar Quinet)
Rooms: Single: 74 Euros; Double: 83 Euros. Breakfast: 6 Euros
Phone: 33 (0)1 43 35 46 66 – Fax: 33 (0)1 42 79 03 64
e-mail: reserv@arotel.com
website: Hotel website [http://www.arotel.com]
Note: 500 meters from Montparnasse Station. Quartier Montparnasse. Close to Quartier Latin, Luxembourg, Saint Germain des Pres.

Hotel IBIS MEUDON-LA-FORET (**) (20 rooms reserved)
7, route du Colonel Moraine – 92360 MEUDON-LA-FORET
Rooms : (1-2 persons) 78 Euros. Breakfast: 6 Euros
Phone: 33 (0)1 45 37 09 09 – Fax: 33 (0)1 40 94 00 19
e-mail: h0948@accor-hotels.com
website: Ibis hotel group [http://www.ibishotel.com]
Note: The nearest hotel from observatoire de Meudon (2 km). In a small town (evening activities reduced!). Access to Paris by bus 179 up to Pont-de Sèvres where there is the metro station: Pont de Sèvres (terminus of line 9).

Hotel IBIS ALESIA (**) (10 rooms reserved)
49, Rue des Plantes - 75014 PARIS. (Metro : Alésia)
Rooms : (1-2 persons): 81 Euros. Breakfast : 6 Euros
Phone: 33 (0)1 53 90 40 00 – Fax: 33 (0)1 53 90 40 15
e-mail: h0959@accor-hotels.com
website: Ibis hotel group [http://www.ibishotel.com]
Note: 1500 meters from Montparnasse Station. Quartier Alesia/Montparnasse. Close to Quartier Latin, Luxembourg, Saint Germain des Pres.

Hotel DAGUERRE (**) (15 rooms reserved)
94, Rue Daguerre - 75014 PARIS. (Metro: Gaieté or Denfert-Rochereau)
Rooms : (1-2 persons): 83 Euros, including breakfast
Phone: 33 (0)1 43 22 43 54 – Fax: 33 (0)1 43 20 66 84
e-mail: hoteldaguerre@wanadoo.fr
Note: 500 meters from Montparnasse Station. Quartier Denfert-Rochereau/Montparnasse. Close to Quartier Latin, Luxembourg, Saint Germain des Pres.

Hotel LE PARNASSE (**) (40 rooms reserved)
79, Avenue du Maine - 75014 PARIS. (Metro: Gaieté or Montparnasse-Bienvenue)
Rooms: Single: 87 Euros; Double: 107 Euros, including breakfast
Phone: 33 (0)1 43 20 13 93 – Fax: 33 (0)1 43 20 95 60
e-mail: leparnasse@dial.oleane.com
Note: 200 meters from Montparnasse Station. Quartier Montparnasse. Close to Quartier Latin, Luxembourg, Saint Germain des Pres.

Hotel ARCADIE (***) (7 rooms reserved)
71, Avenue du Maine - 75014 PARIS. (Metro: Gaieté or Montparnasse-Bienvenue)
Rooms: (1-2 persons): 103 Euros, including breakfast
Phone: 33 (0)1 43 20 91 11 – Fax: 33 (0)1 42 79 87 15
e-mail: hotel.arcadie@wanadoo.fr (you can also send an e-mail from their website)
website: Hotel website [http://www.123france.com/123/fr/hotel.php?id_hot=812]
Note: 200 meters from Montparnasse Station. Quartier Montparnasse. Close to Quartier Latin, Luxembourg, Saint Germain des Pres.

Hotel NOVOTEL SEVRES (***) (40 rooms reserved)
11-13 Grande Rue - 92310 Sèvres.
Rooms: Single or double 180 Euros, including breakfast. Reduced cost at 130 Euros for the night October 1, 2, 3, 8, 9, 10 (week-ends before and after the symposium)
Phone: 33 (0)1 46 23 20 96 – Fax: 33 (0)1 46 23 02 32
e-mail: h1979@accor-hotels.com
website: Hotel website [http://fr.federal-hotel.com/hotel_novotel-paris-pont-de-sevres-sevres_3129.htm]
Note: Located in Sèvres, near the Seine. Access to Paris from metro station: Pont de Sèvres. Hotel located about 3 km from Observatoire de Meudon. Complete this form to reserve a room.

Other websites for booking hotels in Paris

If you prefer other places in Paris, below is a list of some other websites where you can make hotel reservations. (This list is incomplete.)

0800Paris-Hotels: http://www.0800paris-hotels.co.uk/ (in English) or http://www.0800paris-hotels.com/index_fr.asp (en français)

A1 Discount Paris Hotels: http://paris.fr.a1-discount-hotels.com/

Hotels-Paris.fr: http://www.hotels-paris.fr/en/ (in English) or http://www.hotels-paris.fr/fr/ (en français)

Hotels-Europe.ws: http://paris.hotels-europe.ws/

All City Hotel.net: http://www.allhotelsparis.net/

ParisBy.com: http://www.parisby.com/

123France.com: http://www.123france.com/

Kelkoo voyages: http://voyages.kelkoo.fr/b/a/c_170701_hotel.html (en français)

RatesToGo: http://www.RatesToGo.com/default.asp?country=France (in English) or http://www.ratestogo.com/default.asp?country=France&lc=FR (en français)


Symposium Proceedings

The proceedings of the Gaia Symposium "The Three Dimensional Universe with Gaia" will be published by the European Space Agency in early 2005 as part of its Special Publications series (this proceedings will be SP-576). All papers must be prepared using the LaTeX templates provided (see below for files and instructions). All components for the papers (i.e. the tex file, all figures, and a pdf version of the paper) must be submitted to Gaia_Symposium_2004 at rssd.esa.int.

The deadline for submission of final papers is 12 November 2004. Papers received after this deadline will not be included in the printed proceedings.

Instructions for authors are contained in the file Gaia2004_instructions.pdf. In addition to practical details such as page limits and submission details, the instructions also describe how to use the LaTeX class file (Gaia2004.cls), and how to prepare the paper. If, having read the instructions, you still have questions about preparing your paper, please contact Gaia_Symposium_2004 at rssd.esa.int and put 'Gaia 2004 proceedings' in the subject line.

Gaia2004 Symposium Proceedings - instructions for preparing papers
File name Description
Gaia2004_instructions.pdf pdf file containing instructions for authors.
Gaia2004_instructions.tex LaTeX file used to create instructions file. This contains examples of LaTeX notation and may be used as a template for creating papers.
Gaia2004_blank.tex

'Empty' LaTeX file that may be used as a template for creating papers.

Gaia2004.cls LaTeX class file created to ensure that papers are compatible with the ESA Proceedings standards.
demo_figure_1.ps Sample figure included for demonstration purposes.
demo_figure_2.ps Sample figure included for demonstration purposes.
Gaia2004.tar.gz All of the above files in compressed tar format.
Other useful files
natbib Link to ftp directory containing natbib files.
A&A User Guide (pdf) User guide for Astronomy & Astrophysics - contains useful instructions for preparing citations.
aa.bst Astronomy & Astrophysics bibliographic style file - for use with natbib and BIBTeX.