... This allows the selection of quasars (and other unusual objects) to fainter magnitudes than line-only searches without making assumptions about the variance of quasar spectra. ...
... Previous: Automated Software for Slitless Spectroscopy Analysis and Quasar Selection . Table of Contents - Subject Index - Author Index - Search . ...
... For example, visual inspection of the thumbnails generated in response to the following search for high-redshift quasars: SELECT specOb jId, ra, dec FROM SpecOb j WHERE specClass = 3 and z > 3 yields a potential lensed quasar. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/O8-4.pdf -- 1249.7 Кб -- 27.08.2004 Похожие документы
... Figure 2: Possible lensed quasar and spectrum. ... thumbnails generated in response to the following search for high-redshift quasars ... FROM SpecObj . WHERE specClass = 3 and z 3 yields a potential lensed quasar. ...
... Most ob jects observed with Chandra, such as supernova remnants, quasars, or pulsars, are at infinity for all practical purposes and the observations produce sharp, focused images. ...
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Ссылки http://www.adass.org/adass/proceedings/adass02/reprints/P4-8.pdf -- 171.8 Кб -- 11.03.2003 Похожие документы
... evolution theories, and can validate the analysis methods to be used on the quasars ... clouds, the likely origin of some gas in quasars, are tested by studies of the Orion ...
... distribution of confirmed quasars, while the unshaded area represents non-quasars ... A perfect classifier would put all the quasars at and all the non-quasars at . ...