The XXXXth Moriond Workshop will be held in La Thuile , Italy, from Sunday March 6th to Saturday March 12th 2005. It will be devoted to WHEN UV MEETS IR: A HISTORY OF STAR FORMATION.

La Thuile is a is a pleasant winter sports resort located the Italian Alps, at 1450 m alt., about 120 km from Geneva.

The nearest international airport is Geneva (Switzerland). If you arrive in Geneva international airport, do not forget that you may need a transit visa, coming through Switzerland to Italy (this is certainly the case for Russian and Korean participants).

Postal address of the meeting:

Rencontres de Moriond
Planibel Hotel - La Thuile
Valle d'Aosta
11016 La Thuile (Aosta)
Phone: 39 (0)1 65 88 45 41
Fax: 39 (0)1 65 88 45 35
Please begin your fax with: To the attention of Rencontres de Moriond.


The purpose of the Rencontres de Moriond is to discuss recent findings and new ideas in astrophysics in a pleasant, relaxed and intimate atmosphere. The meeting intends to promote fruitful collaboration between various communities and between various institutes by bringing together a small number of scientists in beautiful and inspiring surroundings.


1. Program

The topics which will be discussed include:

2. Program Committee

D. Elbaz (chairman, Saclay), H.Aussel (co-chairman, Saclay), P.-A. Duc (Saclay), V. Buat (Marseille), D. Burgarella (Marseille), H. Dole (Orsay), E. Le Floc'h (Tucson), D. Kunth (Paris), T. Montmerle (Grenoble), L. Tresse (Marseille), M. Treyer (Marseille), J. Trân Thanh Vân (Orsay).


3. Scientific Advisory Committee

C. Cesarsky (Garching), F. Combes (Paris), S. Charlot (Paris), V. Charmandaris (Ithaca), M. Dickinson (Tucson), A. Franceschini (Padova), U. Fritze-Alvensleben (Göttingen), B. Guiderdoni (Paris), F. Hammer (Meudon), G. Helou (Pasadena), Ch. Martin (Pasadena), J-L. Puget (Orsay), G. Rieke (Tucson), D. Schiminovich (Pasadena), L. Vigroux (Saclay).

4. Scientific overview

Over the past two years, two new space observatories, GALEX and Spitzer, sampling the two ends of the optical window, enabled us to further our knowledge in extragalactic astrophysics in an unprecedented way. In the IR, following on the discoveries of ISO, Spitzer now routinely probes the physical properties of the dust in galaxies at z~2 as well as samples the stellar population ou to z~7. Our knowledge of these objects from ground-based observations, though detailed, has been so far inferred using mainly their rest-frame optical/UV characteristics. The surveys currently performed in the UV with GALEX are about to revolutionize our understanding in this domain and fine tune its diagnostic power on massive star formation. We propose to explore the synergy of the two fields during a constructive meeting in the Italian Alps.

5. Contributions

The detailed program of the meeting will be established according to the latest experimental and theoretical results at the time of the meeting. Participants who wish to present new results are requested to send an abstract of their proposed presentation through the Contribution Form as soon as possible (before January 31st 2005 at the latest). Due to limitation of time, only a restricted number of talks can be accepted.
According to the tradition of the Rencontres de Moriond, a large amount of time will be reserved for both organized and spontaneous discussions. Hence all participants are expected to play an active role during the entire meeting. Please remember that we make a special effort to bring together theorists and experimenters: theoretical talks should be prepared with experimenters in the audience in mind, and experimental talks should likewise be aimed at theorists.

Further information can be obtained:
David Elbaz & Hervé Aussel: CEA Saclay, Astrophysique, Ormes des Merisiers, 91190 Gif-sur-Yvette cédex. E-mail :

Proceedings of the conference will be published. Instructions will be distributed during the Rencontres. Deadline for contributions will be May 15th 2005.



1. Conference Dates

The meeting will begin on Sunday March 6th 2005 at 18h00 and will end on Saturday 12th at 9h00.

2. Conference facilities

The following equipment will be available: a projector for computer presentations, an overhead projector for transparencies and a slide projector for 5cm x 5cm slides. Speakers can bring their presentations on their laptops (while the compatibility of such devices has improved recently, we ask you to bring a back up copy for overhead projector).

3. Transparencies

The transparencies will be posted on the web just after the conference, in their original format (.ppt, .pdf, .ps, .doc) or only in .pdf if requested.

4. Conference Fee

The conference fee for participants is 330 euros. It will cover the cost of the copy of the proceedings and the cost of all social events.

Payment can be made:

Please avoid cash payment if possible.

Credit cards are not accepted for Conference Fee payments but are accepted for the hotel bill (See below)..

5. Accommodation

Housing will be in Hotel Planibel, La Thuile. Meals will be served in this hotel for all participants.

The hotel bill shall be paid directly to the hotel. Major credit cards (for the hotel accommodations only) are accepted.

The total cost (full board) will amount to 510 Euros (double occupancy). It will be difficult to obtain single rooms. Only a few will be available at an additional cost of 120 Euros. Single rooms should be reserved before January 15th, 2005.

For accompanying members, the costs are as follows:
- 510 Euros per adult
- 382 euros per child (6 -10 years old)
- 255 euros per child (4 - 6 years old)
It will not be possible to find accommodation for your family if you have not requested it by January 15st, 2005.

Important notice: Hotel reservations are made for the whole session: i.e. from the evening of Sunday March 6th to the morning of Saturday March 12th (including lunch before departure of the conference bus to Geneva). Please note that the total cost of the meeting will not be reduced even in case of partial attendance.

Cancellations of hotel reservation should be made before February 15th, 2005. After this date, the hotel will charge us for the entire cost of accommodation and we will have to ask the participants who cancel their attendance later, to pay for the total accommodation as listed above.

N.B.: The conference will start on Monday March 7th in the morning, but hotel rooms can be reserved starting on Saturday March 5th (in order to include a week-end night in your stay to obtain cheepers flight tickets). If you wish to arrive on Saturday March 5th, you should specify it on the registration form. The price will then be 595 Euros per adult (441 euros per 6-10 years old child, and 294 euros per 4-6 years old child).



More detailed information will be communicated later.

1) From Paris to Geneva by train (TGV)

Please note that reservations are compulsory for TGV trains.

From Geneva Train Station to Geneva Airport by train: 7 mn, every 15 minutes.

2) From Geneva Airport to La Thuile

a) Conference bus

departure from Geneva International Airport on Sunday March 6th: the bus will leave at 15h00.

Return conference buses are scheduled to leave La Thuile on Saturday, March 12th at 13h30 sharp (after lunch) and will reach Geneva airport and then CERN (if requested) around 17h00, depending on the traffic.
An early bus is also foreseen to leave La Thuile in the morning and reach Geneva airport at 12h00

b) By car

La Thuile can be easily reached by car from France: by the A40 highway to St Gervais, then by the E25 to Chamonix, Courmayeur and Pré Saint Didier and then turn right, direction to La Thuile via Strada Statale Valle d'Aosta (10 km). If chains are necessary, the sooner you put them on, the better.



Please note that your reply to the program committee member who sent you the invitation is not considered as a registration. Registration for your attendance to the workshop and hotel reservation will only be made on receipt of the registration form (paper or web).




Please return your registration form as soon as possible !

If it is not received by January 15th, 2005,
we may not be able to get hotel reservation for you.