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: http://www.stsci.edu/~inr/thisweek1/2010/thisweek081.html
Дата изменения: Fri Mar 26 17:53:29 2010 Дата индексирования: Thu Apr 8 07:06:32 2010 Кодировка: Поисковые слова: mercury program |
Program Number | Principal Investigator | Program Title | Links | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
11149 | Eiichi Egami, University of Arizona | Characterizing the Stellar Populations in Lyman-Alpha Emitters and Lyman Break Galaxies at 5.7Abstract |
11516 |
James Green, University of Colorado at Boulder |
COS-GTO: Cold ISM |
Abstract |
11520 |
James Green, University of Colorado at Boulder |
COS-GTO: QSO Absorbers, Galaxies and Large-scale Structures in the Local Universe |
Abstract |
11524 |
James Green, University of Colorado at Boulder |
COS-GTO: WARM AND HOT ISM IN AND NEAR THE MILKY WAY |
Abstract |
11548 |
S. Thomas Megeath, University of Toledo |
NICMOS Imaging of Protostars in the Orion A Cloud: The Role of Environment in Star Formation
|
Abstract |
11550 |
James Green, University of Colorado at Boulder |
COS-GTO: X-Ray Binaries |
Abstract |
11555 |
Alexander Brown, University of Colorado at Boulder |
Transition Region and Chromospheric Activity on Low Metallicity Arcturus Moving Group `Alien' Dwarfs |
Abstract |
11567 |
Charles R. Proffitt, Computer Sciences Corporation |
Boron Abundances in Rapidly Rotating Early-B Stars. |
Abstract |
11568 |
Seth Redfield, Wesleyan University |
A SNAPSHOT Survey of the Local Interstellar Medium: New NUV Observations of Stars with Archived FUV Observations
|
Abstract |
11588 |
Raphael Gavazzi, CNRS, Institut d'Astrophysique de Paris |
Galaxy-Scale Strong Lenses from the CFHTLS survey |
Abstract |
11592 |
Nicolas Lehner, University of Notre Dame |
Testing the Origin(s) of the Highly Ionized High-Velocity Clouds: A Survey of Galactic Halo Stars at z>3 kpc |
Abstract |
11604 |
David J. Axon, Rochester Institute of Technology |
The Nuclear Structure of OH Megamaser Galaxies |
Abstract |
11626 |
Philip Massey, Lowell Observatory |
Searching for the Upper Mass Limit in NGC 3603, the Nearest Giant H II Region |
Abstract |
11643 |
Ann Zabludoff, University of Arizona |
A Timeline for Early-Type Galaxy Formation: Mapping the Evolution of Star Formation, Globular Clusters, Dust, and
Black Hole |
Abstract |
11644 |
Michael E. Brown, California Institute of Technology |
A dynamical-compositional survey of the Kuiper belt: a new window into the formation of the outer solar system
|
Abstract |
11651 |
Carole A. Haswell, Open University |
Is the atmosphere of the hottest known transiting exoplanet evaporating? |
Abstract |
11654 |
Robert P. Kirshner, Harvard University |
UV Studies of a Core Collapse Supernova |
Abstract |
11663 |
Mark Brodwin, Harvard University |
Formation and Evolution of Massive Galaxies in the Richest Environments at 1.5 < z < 2.0 |
Abstract |
11666 |
Adam J. Burgasser, Massachusetts Institute of Technology |
Chilly Pairs: A Search for the Latest-type Brown Dwarf Binaries and the Prototype Y Dwarf
|
Abstract |
11679 |
Craig L. Sarazin, The University of Virginia |
Probing The Globular Cluster / Low Mass X-ray Binary Connection in Early-type Galaxies At Low X-ray Luminositie
|
Abstract |
11687 |
Thomas R. Ayres, University of Colorado at Boulder |
SNAPing Coronal Iron |
Abstract |
11704 |
Brian Chaboyer, Dartmouth College |
The Ages of Globular Clusters and the Population II Distance Scale |
Abstract |
11707 |
Kailash Sahu, Space Telescope Science Institute |
Detecting Isolated Black Holes through Astrometric Microlensing |
Abstract |
11709 |
David Bersier, Liverpool John Moores University |
Stretching the diversity of cosmic explosions: The supernovae of gamma-ray bursts |
Abstract |
11715 |
Howard E. Bond, Space Telescope Science Institute |
The Luminous Galactic Cepheid RS Puppis: A Geometric Distance from its Nested Light Echoes |
Abstract |
11719 |
Julianne Dalcanton, University of Washington |
A Calibration Database for Stellar Models of Asymptotic Giant Branch Stars |
Abstract |
11732 |
C. S. Kochanek, The Ohio State University Research Foundation |
The Temperature Profiles of Quasar Accretion Disks |
Abstract |
11738 |
George K. Miley, Sterrewacht Leiden |
SPIDERWEBS AND FLIES: OBSERVING MASSIVE GALAXY FORMATION IN ACTION |
Abstract |
12011 |
Rachel A. Osten, Space Telescope Science Institute |
Magnetic Heating of the Outer Atmospheres of Very Low Mass Dwarfs |
Abstract |
12016 |
Carol A. Grady, Eureka Scientific Inc. |
The Stars and Edge-on Disks of PDS 144: An Intermediate-Mass Analog of Wide T Tauri Multiple Stars |
Abstract |
|
GO 11651: Is the atmosphere of the hottest known transiting exoplanet evaporating?
GO 11666: Chilly Pairs: A Search for the Latest-type Brown Dwarf Binaries and the Prototype Y Dwarf
GO 11704: The Ages of Globular Clusters and the Population II Distance Scale
Hubble Heritage image of the globular cluster, M15 | Globular clusters are the oldest structures within the Milky Way that are directly accessible to observation. They are relatively simple systems, with relatively simple colour-magnitude diagrams (albeit with some complexities adduced from recent HST observations, see GO 11233 ). Matching those CMDs against theoretical models allows us to set constraints on the age of the oldest stars in the Galaxy, and hence on the age of the Milky Way and the epoch of galaxy formation. However, the accuracy of those age determinations rest crucially on the accuracy of the cluster distance determinations. The clusters themselves lie at distances of several kpc at best, and tens of kpc at worst; thus, direct trigonometric parallax measurements must await microacrsecond astrometric missions. The classical method of deriving distances is main sequence fitting - using nearby stars, with similar chemical abundances and accurate parallax measurements, to map out the main sequence in absolute units, and then scaling the cluster data to fit. The problem with this method is that metal-poor subdwarfs are rare, so even Hipparcos was only able to obtain accurate distances to a handful of stars. The present program aims to improve the distance measurements by using the Fine Guidance Sensors on HST to determine sub-millarcsecond trigonometric parallaxes to 9 subdwarfs, almost doubling the sample available for MS fitting. |
GO 11707: Detecting Isolated Black Holes through Astrometric Microlensing