Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://www.stsci.edu/~inr/thisweek1/thisweek330.html
Дата изменения: Fri Nov 23 22:59:58 2007 Дата индексирования: Tue Oct 2 14:19:56 2012 Кодировка: Поисковые слова: molecular cloud |
Program Number | Principal Investigator | Program Title | Links | ||||||||||||||||||||||||||||||||
10840 | Nuria Calvet, University of Michigan | The FUV fluxes of Tauri stars in the Taurus molecular cloud | Abstract | ||||||||||||||||||||||||||||||||
10852 | Glenn Schneider, University of Arizona | Coronagraphic Polarimetry with NICMOS: Dust grain evolution in T Tauri stars | Abstract | ||||||||||||||||||||||||||||||||
10896 | Paul Kalas, University of California - Berkeley | An Efficient ACS Coronagraphic Survey for Debris Disks around Nearby Stars | Abstract | ||||||||||||||||||||||||||||||||
10905 | R. Tully, University of Hawaii | The Dynamic State of the Dwarf Galaxy Rich Canes Venatici I Region | Abstract | ||||||||||||||||||||||||||||||||
10907 | Scott F. Anderson, University of Washington | New Sightlines for the Study of Intergalactic Helium: A Dozen High-Confidence, UV-Bright Quasars from SDSS/GALEX | Abstract | ||||||||||||||||||||||||||||||||
10915 | Julianne Dalcanton, University of Washington | ACS Nearby Galaxy Survey | Abstract | ||||||||||||||||||||||||||||||||
11011 | C. S. Kochanek, The Ohio State University Research Foundation | Dissecting An Accretion Disk | Abstract | ||||||||||||||||||||||||||||||||
11079 | Luciana Bianchi, The Johns Hopkins University | Treasury Imaging of Star Forming Regions in the Local Group: Complementing the GALEX and NOAO Surveys | Abstract | ||||||||||||||||||||||||||||||||
11082 | Christopher Conselice, Univ. of Nottingham | NICMOS Imaging of GOODS: Probing the Evolution of the Earliest Massive Galaxies, Galaxies Beyond Reionization, and the High Redshift Obscured Universe | Abstract | ||||||||||||||||||||||||||||||||
11103 | Harald Ebeling, University of Hawaii | A Snapshot Survey of The Most Massive Clusters of Galaxies | Abstract | ||||||||||||||||||||||||||||||||
11125 | Joel N. Bregman, University of Michigan | The Dynamical Evolution of Globular Clusters | Abstract | ||||||||||||||||||||||||||||||||
11128 | David Bradley Fisher, University of Texas at Austin | Time Scales Of Bulge Formation In Nearby Galaxies | Abstract | ||||||||||||||||||||||||||||||||
11130 | Luis Ho, Carnegie Institution of Washington | AGNs with Intermediate-mass Black Holes: Testing the Black Hole-Bulge Paradigm, Part II | Abstract | ||||||||||||||||||||||||||||||||
11140 | Klaus Werner, Universitat Tubingen, Institut fur Astronomie & Astrophysik | Can mass-ejections from late He-shell flash stars constrain convective/reactive flow modeling of stellar interiors? | Abstract | ||||||||||||||||||||||||||||||||
11142 | Lin Yan, California Institute of Technology | Revealing the Physical Nature of Infrared Luminous Galaxies at 0.3Abstract |
11175 |
Sandra M. Faber, University of California - Santa Cruz |
UV Imaging to Determine the Location of Residual Star Formation in Galaxies Recently Arrived on the Red Sequence |
Abstract |
11178 |
William M. Grundy, Lowell Observatory |
Probing Solar System History with Orbits, Masses, and Colors of Transneptunian Binaries |
Abstract |
11197 |
Peter Garnavich, University of Notre Dame |
Sweeping Away the Dust: Reliable Dark Energy with an Infrared Hubble Diagram |
Abstract |
11202 |
Leon Koopmans, Kapteyn Astronomical Institute |
The Structure of Early-type Galaxies: 0.1-100 Effective Radii |
Abstract |
11211 |
George Fritz Benedict, University of Texas at Austin |
An Astrometric Calibration of Population II Distance Indicators |
Abstract |
11212 |
Douglas R. Gies, Georgia State University Research Foundation |
Filling the Period Gap for Massive Binaries |
Abstract |
11289 |
Jean-Paul Kneib, Laboratoire d'Astronomie Spatiale |
SL2S: The Strong Lensing Legacy Survey |
Abstract |
11299 |
Todd J. Henry, Georgia State University Research Foundation |
Calibrating the Mass-Luminosity Relation at the End of the Main Sequence |
Abstract |
|
GO 10907: New Sightlines for the Study of Intergalactic Helium: A Dozen High-Confidence, UV-Bright Quasars from SDSS/GALEX
GALEX, the Galaxy Evolution Explorer | GALEX is a NASA small explorer-class mission equipped with a 50-cm diameter telescope. Launched on 28th April 2003, it has beaten its nominal lifetime by 17 months (and counting), conducting ultraviolet imaging and low-resolution grism spectroscopy at far-UV (125-175 nm) and near-UV (175-280 nm) wavelengths. The principal science goal is investigating the star formation history of the universe, focusing particularly on star formation in nearby galaxies but also probing to higher redshifts. The present HST proposal aims to target the more distant regime. The GALEX source catalogues have been cross-referenced against SDSS catalogues of high redshift (z > 3.1) quasars, aiming to identify UV-bright QSOs. These sources can serve as effective probes of the ionisation state of the intergalactic medium at intervening redshifts. In particular, analysis of the He II Lyman-alpha absorption will shed light on the epoch of reionisation of intergalactic helium, generall placed between redshifts 3 and 4. |
GO 11142: Revealing the Physical Nature of Infrared Luminous Galaxies at 0.3
GO 11178: Probing Solar System History with Orbits, Masses, and Colors of Transneptunian Binaries
Preliminary orbital determination for the KBO WW31, based on C. Veillet's analysis of CFHT observations; the linked image shows the improved orbital derivation, following the addition of HST imaging | The Kuiper Belt consists of icy planetoids that orbit the Sun within a broad band stretching from Neptune's orbit (~30 AU) to distance sof ~50 AU from the Sun (see David Jewitt's Kuiper Belt page for details). Over 500 KBOs (or trans-Neptunian objects, TNOs) are currently known out of a population of perhaps 70,000 objects with diameters exceeding 100 km. Approximately 2% of the known KBOs are binary (including Pluto, one of the largest known KBOs, regardless of whether one considers it a planet or not). This is a surprisingly high fraction, given the difficulties involved in forming such systems and the relative ease with which they can be disrupted. It remains unclear whether these systems formed from single KBOs (through collisions or 3-body interactions) as the Kuiper Belt and the Solar System have evolved, or whether they represent the final tail of an initial (much larger) population of primordial binaries. These issues can be addressed, at least in part, through deriving a better understanding of the composition of KBOs - and those properties can be deduced by measuring the orbital parameters for binary systems. The present proposal will use the Planetary camera on WFPC2 to determine the relative orbits for several known KBO binaries. Just as with binary stars, the orbital period and semi-major axis give the total system mass, while the mid-infrared properties (measured by Spitzer) allow an assessment of the surface area/diameters; combining these measurements gives an estimate of the mean density. |
GO 11299: Calibrating the Mass-Luminosity Relation at the End of the Main Sequence