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: http://www.stsci.edu/~inr/thisweek1/2008/thisweek175.html
Дата изменения: Tue Sep 3 16:42:27 2013 Дата индексирования: Sat Mar 1 12:33:34 2014 Кодировка: Поисковые слова: vallis |
Program Number | Principal Investigator | Program Title | Links |
11079 | Luciana Bianchi, The Johns Hopkins University | Treasury Imaging of Star Forming Regions in the Local Group: Complementing the GALEX and NOAO Surveys | Abstract |
11107 | Timothy M. Heckman, The Johns Hopkins University | Imaging of Local Lyman Break Galaxy Analogs: New Clues to Galaxy Formation in the Early Universe | Abstract |
11110 | Stephan McCandliss, The Johns Hopkins University | Searching for Lyman alpha Emission from FUSE Lyman Continuum Candidates | Abstract |
11130 | Luis Ho, Carnegie Institution of Washington | AGNs with Intermediate-mass Black Holes: Testing the Black Hole-Bulge Paradigm, Part II | Abstract |
11131 | Walter Jaffe, Sterrewacht Leiden | Star formation at large radii in cooling flow brightest cluster galaxies | Abstract |
11136 | Michael C. Liu, University of Hawaii | Resolving Ultracool Astrophysics with Brown Dwarf Binaries | Abstract |
11144 | Richard Bouwens, University of California, Santa Cruz | Building on the Significant NICMOS Investment in GOODS: A Bright, Wide-Area Search for z>=7 Galaxies | Abstract |
11158 | R. Michael Rich, University of California - Los Angeles | HST Imaging of UV emission in Quiescent Early-type Galaxies | Abstract |
11183 | Crystal Martin, University of California - Santa Barbara | Ultraviolet Imaging of Lyman-Alpha-Selected Galaxies at High Redshift | Abstract |
11186 | Joachim Saur, Universitat zu Koeln | Investigation of the spatial and temporal structure of Europa's atmospheric emissisons | Abstract |
11188 | Brian Siana, Jet Propulsion Laboratory | First Resolved Imaging of Escaping Lyman Continuum | Abstract |
11192 | Hao-Jing Yan, Observatories of the Carnegie Institution of Washington | NICMOS Confirmation of Candidates of the Most Luminous Galaxies at z > 7 | 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 |
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 |
11233 | Giampaolo Piotto, Universita di Padova | Multiple Generations of Stars in Massive Galactic Globular Clusters | Abstract |
11235 | Jason A. Surace, California Institute of Technology | HST NICMOS Survey of the Nuclear Regions of Luminous Infrared Galaxies in the Local Universe | Abstract |
11237 | Lutz Wisotzki, Astrophysikalisches Institut Potsdam | The origin of the break in the AGN luminosity function | Abstract |
11341 | Jason A. Surace, California Institute of Technology | Lower Luminosity AGNs at Cosmologically Interesting Redshifts: SEDs and Accretion Rates of z~0.36 Seyferts | Abstract |
11498 | Amy Simon-Miller, NASA Goddard Space Flight Center | 2008 Passage of Jupiter's Great Red Spot and Oval BA | Abstract |
GO 11107: Imaging of Local Lyman Break Galaxy Analogs: New Clues to Galaxy Formation in the Early Universe
GO 11196: An Ultraviolet Survey of Luminous Infrared Galaxies in the Local Universe
GO 11233: Multiple Generations of Stars in Massive Galactic Globular Clusters
NGC 2808, a globular cluster with multiple stellar populations | Globular clusters are remnants of the first substantial burst of star formation in the Milky Way. With typical masses of a few x 105 solar masses, distributed among several x 106 stars, the standard picture holds that these are simple systems, where all the stars formed in a single starburst and, as a consequence, have the same age and metallicity. Until recently, the only known exception to this rule was the cluster Omega Centauri, which is significantly more massive than most clusters and has both double main sequence and a range of metallicities among the evolved stars. Omega Cen has been joined by at least one more cluster, NGC 2808, which shows evidence for three distinct branches to the main sequence. The origin of this feature is not known, but it may be significant that NGC 2808 is also one of the more massive clusters, and might therefore be able to survive several burst of star formation (or, conversely, be the product of a multi proto-globular merger). The present program aims to use WFPC2 to obtain high-precision photometry of other massive globulars, such as NGC 1851, M80 and M13. |