... Paul Green's Selected Papers . Now You See It, Now You Don't: The Disappearing Central Engine of the Quasar J1011+5442, . ... Towards an Understanding of Changing-Look Quasars With a Statistical Sample: An Archival Spectroscopic Search in SDSS . ...
... ChaMP and the High Redshift Quasars in Xrays S. Mathur 1 Harvard Smithsonian Center ... CCD detectors will observe over 1500 quasars serendipitously in the soft (0.5--3.5 ... Over 200 quasars will be detected in Xrays in the redshift range 3 ! z ! ...
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Ссылки http://hea-www.harvard.edu/CHAMP/PUBLICATIONS/HY-z-smita.ps -- 1193.2 Кб -- 19.09.2003 Похожие документы
... Emission Line Diagnostics in a ``No UV Bump'' Quasar PHL909 Smita Mathur, Belinda Wilkes, Martin Elvis and Jonathan McDowell Abstract PHL909 is a quasar with unusually low ultraviolet luminosity (blue bump strength C UV=IR = \Gamma0:20 compared to an ...
... quasars and its application to trace the dark energy Copernicus Astronomical Center ... Three z = 1 quasars - about 40 nearby AGN - about 10 z < 0.4 quasars - 7 distant ...
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Ссылки http://hea-www.harvard.edu/AstroStat/Stat310_1314/bc_20140408.pdf -- 927.1 Кб -- 07.04.2014 Похожие документы
... in PKS 1127-145, a quasar at z=1.187 . 3C186 cluster of galaxies . ... Quasars and Active Galaxies . Relativistic Jets and Blazars . ... Long X-ray Jet in a distant quasar PKS 1127-145 . Chandra Press Release . ...
... ChaMP) seeks to understand the nature and evolution of quasars, galaxies, and clusters of galaxies in a large, carefully ... A Full Year's Chandra Exposure on SDSS Quasars from the Chandra Multiwavelength Project , Green, P. et al. ...
... Quasars Belinda Wilkes, Smita Mathur, Jonathan McDowell (SAO) and Ari Laor (Caltech ... quasar spectra are generally believed to be generated in gas photoionized by the ...