... Poitiers, 23 January 2007 Science Vision for European Astronomy in the Next 20 Years 2 Is the initial mass function universal? ... High Poitiers, 23 January 2007 Science Vision for European Astronomy in the Next 20 Years 4 Do we understand stellar structure and evolution? ... Interferometry in near infrared and radio: measuring radii and resolving stellar surface Science Vision for European Astronomy in the Next 20 Years Poitiers, 23 January 2007 5 What is the life-cycle of the ISM and Stars? ...

Science Objectives for the Cosmic Origins Spectrograph Claus Leitherer, Martin Barstow, Linda Dressel, Cynthia Froning, Peter Garnavich, Tony Keyes, Jeff Valenti, & the COS Science Team Claus Leitherer Slide Number 1 of 12 Four key science questions -- united by the theme of Cosmic Origins · What are the origins of large-scale structure and the intergalactic medium? How do galaxies form and evolve? ... Unprecedented sampling of the IGM. ... Claus Leitherer Slide Number 12 of 12 ...

... galaxies: bulges galaxies: clusters: general galaxies: clusters: individual: . ... star formation statistics stellar content structure Cosmology ( cosmology :) cosmic background radiation ( cosmology :) cosmological parameters cosmology : miscellaneous cosmology : observations cosmology : theory ( cosmology :) dark ages, reionization, first stars ( cosmology :) dark energy ( cosmology :) dark matter ( cosmology :) diffuse radiation ( cosmology :) distance scale ( cosmology :) early Universe (...

... The GALFA Continuum Transit Survey group ( GALFACTS ; PI: A. R. Taylor) has conducted several test observations and will begin an all-sky full-Stokes continuum survey later this year with the new P-ALFA spectrometer. ... Sample Perseus images of GALFA H I 21cm-line and full-Stokes continuum emission are shown below along with maps of molecular (CO) gas, thermal dust, and ionized gas optical emission for comparison. ... The GALFA H I emission appears to envelop the molecular cloud gas traced by CO. ...

Hubble Observations Shed New Light on Jupiter Collision . Was it a comet or an asteroid? ... Their initial findings, combined with results from other space-borne and ground-based telescopes, shed new light on Jupiter's atmospheric winds, its immense magnetic field, the mysterious dark debris from the impacts, and the composition of the doomed comet itself. ... Hubble's ultraviolet observations show the motion of very fine impact debris particles now suspended high in Jupiter's atmosphere. ...

We addressed strictly line-by-line differential abundance analysis using high resolution, high signal-to-noise ratio spectra on field stars (e.g., stellar binaries, terrestrial planet hosts etc.) and open cluster stars (e.g., the Hyades stars) in order to seek for and test the possible chemical signatures of planet formation. ...

... HI gas in the Magellanic Clouds, . ... The Australian Academy of Science are supporting the 'Elizabeth and Frederick White conference on the Magellanic System'. ... The Magellanic Clouds as a template for the study of stellar populations and galaxy interaction . Download: pdf . ... Dating Young Stellar Objects in the Magellanic Clouds . ... The Extended population of the Large Magellanic Cloud . ... Spectral Diagnostics of newly Discovered Planetary Nebulae in the Large Magellanic Cloud . ...

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

... An Extrasolar Planet? ... NASA Explanation: This infrared Hubble Space Telescope view may contain the first ever direct image of a planet outside our own solar system. The picture shows a very young double star located about 450 light-years away toward the constellation of Taurus . Cataloged as TMR-1 (Taurus Molecular Ring star 1), the binary system is still embedded in the dust cloud that formed it. ... Publications with keywords: extrasolar planet - planet formation . ...

... Search . ... Astrophysics Group . Research . ... Research and Instrumentation . ... While this seems an extraordinary endeavour, in light of what we have learnt about Solar System planets, only a handful of key ingredients are required to start characterising an exoplanet. ... The NGTS project is a partnership between the University of Cambridge, Queen?s University Belfast, University of Warwick, University of Leicester, Observatoire de Geneve, DLR (Berlin) and Universidad Catolica de Chile. ...

The solar system probably formed about 4.5 billion years ago from a giant disk of gas, dust and ice in space. ... All forms of life on Earth require liquid water to survive, so the presence of liquid water is a good criterion for deciding whether other planets in the universe could be habitable. Earth is the only habitable planet in the solar system. Venus, closer to the Sun, is too hot to have liquid water. Planets and moons in the outer solar system are too cold for liquid water. ...