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: http://www.stsci.edu/~inr/thisweek1/2008/thisweek210.html
Дата изменения: Tue Jul 29 23:13:07 2008 Дата индексирования: Sat Sep 6 06:50:45 2008 Кодировка: Поисковые слова: carina nebula |
Program Number | Principal Investigator | Program Title | Links | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
11103 | Harald Ebeling, University of Hawaii | A Snapshot Survey of The Most Massive Clusters of Galaxies | Abstract | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
11113 | Keith S. Noll, Space Telescope Science Institute | Binaries in the Kuiper Belt: Probes of Solar System Formation and Evolution | Abstract | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
11129 | Enrico V. Held, Osservatorio Astronomico di Padova | The Star Formation History of the Fornax Dwarf Spheroidal Galaxy | Abstract | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
11135 | Mariska Kriek, Universiteit Leiden | Extreme makeovers: Tracing the transformation of massive galaxies at z~2.5 | Abstract | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
11142 | Lin Yan, California Institute of Technology | Revealing the Physical Nature of Infrared Luminous Galaxies at 0.3Abstract |
11158 |
R. Michael Rich, University of California - Los Angeles |
HST Imaging of UV emission in Quiescent Early-type Galaxies |
Abstract |
11166 |
Jong-Hak Woo, University of California - Santa Barbara |
The Mass-dependent Evolution of the Black Hole-Bulge Relations |
Abstract |
11172 |
Arlin Crotts, Columbia University in the City of New York |
Defining Classes of Long Period Variable Stars in M31 |
Abstract |
11177 |
Caryl Gronwall, The Pennsylvania State University |
The Nature of z=3 Lyman-Alpha Emitters |
Abstract |
11178 |
William M. Grundy, Lowell Observatory |
Probing Solar System History with Orbits, Masses, and Colors of Transneptunian Binaries |
Abstract |
11196 |
Aaron S. Evans, State University of New York at Stony Brook |
An Ultraviolet Survey of Luminous Infrared Galaxies in the Local Universe |
Abstract |
11202 |
Leon Koopmans, Kapteyn Astronomical Institute |
The Structure of Early-type Galaxies: 0.1-100 Effective Radii |
Abstract |
11203 |
Kevin Luhman, The Pennsylvania State University |
A Search for Circumstellar Disks and Planetary-Mass Companions around Brown Dwarfs in Taurus |
Abstract |
11206 |
Kai G. Noeske, University of California - Santa Cruz |
At the cradle of the Milky Way: Formation of the most massive field disk galaxies at z>1 |
Abstract |
11210 |
George Fritz Benedict, University of Texas at Austin |
The Architecture of Exoplanetary Systems |
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 |
11218 |
Howard E. Bond, Space Telescope Science Institute |
Snapshot Survey for Planetary Nebulae in Globular Clusters of the Local Group |
Abstract |
11544 |
Adam L. Kraus, California Institute of Technology |
The Dynamical Legacy of Star Formation |
Abstract |
11551 |
Joshua S. Bloom, University of California - Berkeley |
When degenerate stars collide: Understanding A New Explosion Phenomena |
Abstract |
11791 |
C. S. Kochanek, The Ohio State University Research Foundation |
The Wavelength Dependence of Accretion Disk Structure |
Abstract |
11800 |
Keith Noll, Space Telescope Science Institute |
Hubble Heritage imaging of NGC 3324 in the Carina Nebula |
Abstract |
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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 11791: The Wavelength Dependence of Accretion Disk Structure
GO 11211: An Astrometric Calibration of Population II Distance Indicators