From vanessa.hill at oca.eu Mon Aug 30 22:22:33 2010 Received: from ppsw-33.csi.cam.ac.uk ([131.111.8.133]) by lists-1.csi.cam.ac.uk (lists.cam.ac.uk [131.111.8.15]:25) with esmtp id 1OqBoH-0005pj-Cj (Exim 4.70) for ast-great-announce at lists.cam.ac.uk (return-path ); Mon, 30 Aug 2010 22:22:33 +0100 X-Cam-AntiVirus: no malware found X-Cam-SpamScore: s X-Cam-SpamDetails: score 1.9 from SpamAssassin-3.3.1-960172 * 0.6 RCVD_IN_SORBS_WEB RBL: SORBS: sender is an abusable web server * [194.209.131.192 listed in dnsbl.sorbs.net] * 1.2 RCVD_IN_BL_SPAMCOP_NET RBL: Received via a relay in bl.spamcop.net * [Blocked - see ] X-Cam-ScannerInfo: http://www.cam.ac.uk/cs/email/scanner/ Received: from smtps-n.obs-nice.fr ([192.54.174.167]:40768 helo=smtps-n.oca.eu) by ppsw-33.csi.cam.ac.uk (mx.cam.ac.uk [131.111.8.149]:25) with esmtp (csa=unknown) id 1OqBoB-00054l-iE (Exim 4.72) for ast-great-announce at lists.cam.ac.uk (return-path ); Mon, 30 Aug 2010 22:22:33 +0100 Received: from [10.56.141.252] (unknown [194.209.131.192]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtps-n.oca.eu (Postfix) with ESMTP id 9939A2C2C4; Mon, 30 Aug 2010 23:28:11 +0200 (CEST) From: Vanessa Hill Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: =?windows-1252?Q?=22Gaia_Chemo-Dynamical_Survey=94:_Survey_scien?= =?windows-1252?Q?ce,_workshop_in_Nice_2-4_Nov._2010?= Date: Mon, 30 Aug 2010 23:22:25 +0200 Message-Id: <76E2D5F1-BD4C-4A1D-8BDC-A9C210CDDD3B at oca.eu> To: ast-great-announce at lists.cam.ac.uk Mime-Version: 1.0 (Apple Message framework v1078) X-Mailer: Apple Mail (2.1078) X-Mailman-Approved-At: Mon, 30 Aug 2010 22:42:02 +0100 Cc: Sophie Rousset X-BeenThere: ast-great-announce at lists.cam.ac.uk X-Mailman-Version: 2.1.8 Precedence: list List-Id: GREAT announcements List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Aug 2010 21:22:33 -0000 Dear Colleagues, The registration is now open for the: =E2=80=9CGaia Chemo-Dynamical Survey=E2=80=9D (GCDS) Survey = science 2-4 november 2010 in Nice, France. http://cassiopee.oca.eu/spip.php?article324/ Important dates:=20 ----------------=20 Registration opens : 30th august 2010 (on our website) Deadline for financial support application: 17th of september (email = submission) Deadline for abstract submission: 17th of september 2010 (email = submission) Deadline for registration: 30th of september 2010 Scientific summary: ------------------ Gaia will provide an unprecedented map of the positions, kinematics and = spectrophotometry of a billion stars in the Milky Way, allow a quantum = leap on our knowledge of the Galaxy and its stellar populations. We will = be able to dissect the different Galactic components and confront this = detailed structure with models of galaxy formation and their = cosmological context. The full three dimensional velocity vector of a = large number of stars, and their detailed chemical composition will = allow to address crucial questions such as the amount and distribution = of dark matter in the Galaxy and the formation and evolution of the = different Galactic components. Nonetheless, our picture of the Milky Way = will be hampered in two ways: the low resolution spectrograph on-board = (RVS) will not reach the same limiting magnitude as the rest of the Gaia = instruments and its resolution (R=3D11 500 for stars brighter than about = 14 and R=3D6 500 for fainter stars) and small wavelength coverage, are = not well suited for detailed studies of elemental abundances. Indeed, the radial velocity measurements for faint stars (i.e. distant, = but also the much more numerous less evolved stars) do not match the = accuracies obtained for the tangential motions (proper motions), and in = particular, for very faint stars (V > 17) no radial information will be = available. As a consequence, the dynamical map of the Milky Way will be = incomplete and restricted to the nearby few kiloparsecs limiting the = scientific impact on certain high-priority questions. Furthermore, the = metallicity measurements obtained from the low resolution spectra means = that the metallicity distribution function will be available from Gaia = only within this sphere of influence, leading to a highly incomplete, = and biased, view of the Milky Way. Secondly, to underpin the evolution of the Milky Way requires knowledge = of a time variable, which can be provided by detailed elemental = abundance studies. This is much needed to understand the star formation, = chemical evolution history and the coupling to the dynamics, all = processes that have determined the way the Milky Way looks today. Since = elemental abundances (=CE=B1-elements which tell about the supernova = type II, iron-peak elements which are related mostly to supernova type = Ia, r- and s- process which measure the impact of winds from evolved = stars) are either not provided at all by Gaia, or restricted to a small = number of elements (Mg, Si, Ca, Ti, and Fe) in a limited sample of the = cool stars brighter than about 12. For all of the above reasons, wide field high resolution spectroscopic = surveys from ground based facilities appear as a necessary complement to = guarantee the maximum scientific throughput of the Gaia mission. This = need has been recognised in a number of reports, and highlighted in the = Science Vision report by Astronet: =E2=80=9CIt is crucial to supplement = the Gaia data-set with dedicated ground-based spectroscopic programmes, = in order to obtain the radial velocity and detailed chemical abundances = for fainter stars.=E2=80=9D The recent efforts by the GREAT network and in particular its GREAT = Chemical Tagging Working Group (WGA3), and subsequent discussions with a = number of other GREAT WGs (e.g. WGA1) has resulted in the proposal to = form an inclusive consortium to undertake an ambitious Gaia = Chemo-Dynamical Survey (GCDS) of the Milky Way. The kick-off meeting = took place in Paris on the 27th of April 2010, and efforts are ongoing = to lay the foundations of this very large collaborative effort. It is = now time to open the discussions to a wider community, and the proposed = workshop will bring together the galactic archaeology, galactic = dynamics, stellar physics communities to lay out and discuss the main = science cases for the GCDS, and their best implementation across the = various existing and planned instrumentation available to Europeans. Special emphasis will be given to the forthcoming ESO call for Large = Public spectroscopic Survey, for which Letters of Intent will have just = been sent to ESO (expected deadline 15th of October). The workshop will be organised in sessions, following the four Science = Experiments (SEs) that have been identified : =E2=80=A2 SE1: Mass Distribution of the Galaxy =E2=80=A2 SE2: How did galaxies form as traced by chemistry =E2=80=A2 SE3: How clusters and stars formed and evolved =E2=80=A2 SE4: Additional Science (includes various science = topics that will benefit from the survey, mainly in stellar physics = -variable stars, hot stars, =E2=80=A6) Science Organising Committee (SOC): ----------------------------- Olivier Bienaym=C3=A9, Piercarlo Bonifacio, Sofia Feltzing, Eva Grebel, = Gerry Gilmore, Amina Helmi, Vanessa Hill (Chair), Nami Mowlavi, Sofia = Randich, Mathias Steinmetz, Floor Van Leeuwen, Nic Walton Key speakers / participants include: ------------------------------------ Olivier Bienaym=C3=A9; Carine Babusiaux; Piercarlo Bonifacio; Sofia = Feltzing; Anette Fergusson; Eva Grebel; Gerry Gilmore; Amina Helmi; = Vanessa Hill: Patrick de Laverny; Nami Mowlavi; Sofia Randich; Alejandra = Recio-Blanco; Mathias Steinmetz; Floor Van Leeuwen; Nic Walton. Duration and layout of the meeting: ---------------------------------- The meeting will last 3 full days, statrting tuesday 2nd of november = early morning until thursday 4th afternoon (no later than 16h00), and = will include parallel sessions (1/2 day, devided according to SEs), = plenary sessions consisting of short presentations and ample time for = discussions and organisation of the GCDS consortium. Abstract submission:=20 -------------------- To apply for a talk, abstracts should be sent to Vanessa.Hill at oca.eu = BEFORE September 17th, with the following information: ***************************** Email object: "GCDS Nice: abstract" - Name, affiliation, position (student/postdoc/staff) - Title of talk - Abstract ****************************** Venue & Registration: ------ The workshop will be held in =E2=80=9CLa Maison du S=C3=A9minaire=E2=80=9D= in Nice (http://www.maison-seminaire-nice.cote.azur.fr/page_en_1.html), = which meeting room can accommodate 50 (and up to 70) participants and is = conveniently located close to the Nice harbour. Registration fees will amount to 120 Euros, covering all lunches and = coffee breaks during the meeting, which will be organised at the meeting = venue. Registration is now open on our website = (http://cassiopee.oca.eu/spip.php?article324) with a deadline for = registration 30th September 2010 Reasonable price accommodation is also provided by the =E2=80=9CMaison = du S=C3=A9minaire=E2=80=9D (~65=E2=82=AC single and 70=E2=82=AC double), = while there is plenty of other hotels in the harbour vicinity. Please = note that november in Nice is still high touristic season, and we = strongly advise participants to book their accommodation well in = advance. Information on accommodation is available on our = website:http://cassiopee.oca.eu/spip.php?article324/ Attendance, and sponsoring: --------------------------- We expect ~50 attendees to the workshop, which is the right size to = allow for plenary discussions, as well as split sessions per Science = Experiments for part of the workshop. The workshop is partially supported by the ESF (through GREAT) and this = will allow us to sponsor up to ~10 participants to attend the workshop, = with priority to GREAT-participating countries, young researchers and = researchers with low funding resources. Applications for financial support should be sent to = gcds_local_admin at oca.eu and Vanessa.Hill at oca.eu BEFORE September 17th, = with the following information: ***************************** Email object: "GCDS Nice: funding application" - Name, affiliation, position (student/postdoc/staff) - I apply for support of : * registration fees or/and * local expenses (per diem of 90Eur/day to cover accommodation + = 1 meal): indicate days of arrival and departure or/and * travel expenses: please include a quote for the travel expense ****************************** Important dates:=20 ---------------- Registration opens : 30th august 2010 Deadline for financial support application: 17th of september Deadline for abstract submission: 17th of september 2010 Deadline for registration: 30th of september 2010 For the LOC, Vanessa Hill Local Organising Committee (LOC): Vanessa Hill (chair), Patrick de = Laverny,Alejandra Recio-Blanco, Clare Worley, Sophie Rousset, Sylvie = Goletto