Cataclysmic variables from the Sloan Digital Sky Survey. II. The second year

被引:150
|
作者
Szkody, P
Fraser, O
Silvestri, N
Henden, A
Anderson, SF
Frith, J
Lawton, B
Owens, E
Raymond, S
Schmidt, G
Wolfe, M
Bochanski, J
Covey, K
Harris, H
Hawley, S
Knapp, GR
Margon, B
Voges, W
Walkowicz, L
Brinkmann, J
Lamb, DQ
机构
[1] Univ Washington, Dept Astron, Seattle, WA 98195 USA
[2] USN Observ, Flagstaff, AZ 86002 USA
[3] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA
[4] Princeton Univ Observ, Princeton, NJ 08544 USA
[5] Space Telescope Sci Inst, Baltimore, MD 21218 USA
[6] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany
[7] Apache Point Observ, Sunspot, NM 88349 USA
[8] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA
来源
ASTRONOMICAL JOURNAL | 2003年 / 126卷 / 03期
关键词
novae; cataclysmic variables; techniques : photometric; techniques : spectroscopic;
D O I
10.1086/377346
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The first full year of operation following the commissioning year of the Sloan Digital Sky Survey (SDSS) has revealed a wide variety of newly discovered cataclysmic variables (CVs). We show the SDSS spectra of 42 CVs observed in 2002, of which 35 are new classifications, four are known dwarf novae (CT Hya, RZ Leo, T Leo, and BZ UMa), one is a known CV identified from a previous quasar survey (Aqr1), and two are known ROSAT or FIRST discovered CVs (RX J09445+0357, FIRST J102347.6+003841). The SDSS positions, colors, and spectra of all 42 systems are presented. In addition, the results of follow-up studies of several of these objects identify the orbital periods, velocity curves, and polarization that provide the system geometry and accretion properties. While most of the SDSS discovered systems are faint (greater than 18th magnitude) with low accretion rates (as implied from their spectral characteristics), there are also a few bright objects that may have escaped previous surveys due to changes in the mass transfer rate.
引用
收藏
页码:1499 / 1514
页数:16
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