2005MNRAS.357..626B

Query : 2005MNRAS.357..626B

2005MNRAS.357..626B - Mon. Not. R. Astron. Soc., 357, 626-644 (2005/February-3)

The complete set of ASCA X-ray observations of non-magnetic cataclysmic variables.

BASKILL D.S., WHEATLEY P.J. and OSBORNE J.P.

Abstract (from CDS):

We present the complete set of 34 ASCA observations of non-magnetic cataclysmic variables. Timing analysis reveals large X-ray flux variations in dwarf novae in outburst (Z Cam, SS Cyg and SU UMa) and orbital modulation in high inclination systems (including OY Car, HT Cas, U Gem, T Leo). We also found episodes of unusually low accretion rate during quiescence (VW Hyi and SS Cyg). Spectral analysis reveals broad temperature distributions in individual systems, with emission weighted to lower temperatures in dwarf novae in outburst. Absorption in excess of interstellar values is required in dwarf novae in outburst, but not in quiescence. We also find evidence for subsolar abundances and X-ray reflection in the brightest systems.

LS Peg, V426 Oph and EI UMa have X-ray spectra that are distinct from the rest of the sample and all three exhibit candidate X-ray periodicities. We argue that they should be reclassified as intermediate polars.

In the case of V345 Pav we found that the X-ray source had been previously misidentified.


Abstract Copyright: 2005 RAS

Journal keyword(s): stars: dwarf novae - novae, cataclysmic variables - X-rays: stars

Simbad objects: 29

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Number of rows : 29
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* WW Cet CV* 00 11 24.7726635744 -11 28 43.204518696           ~ 185 0
2 V* HT Cas CV* 01 10 13.1213394144 +60 04 35.489642700     14.10     M5.5e 401 0
3 V* TT Ari CV* 02 06 53.0797508832 +15 17 41.851038804   10.73 10.20     Bep: 459 0
4 V* VW Hyi CV* 04 09 11.3967378648 -71 17 41.554528260   12.786 12.543 14.160   DQ 661 0
5 V* KR Aur CV* 06 15 43.9189295136 +28 35 08.553579540           ~ 170 0
6 V* U Gem CV* 07 55 05.2324414746 +22 00 05.044127985   15.3 14.54     DA 1135 0
7 V* CP Pup No* 08 11 46.0634106720 -35 21 04.986480708   15.436 15.227     ~ 277 1
8 V* SU UMa CV* 08 12 28.2695986944 +62 36 22.427676396           B2 516 0
9 V* IX Vel CV* 08 15 18.9688659456 -49 13 20.671780368 8.64 10.04 10.10 9.84 9.347 sdOBe 253 0
10 V* Z Cam CV* 08 25 13.1986690656 +73 06 39.284964108   12.006 11.927 11.712   ~ 554 0
11 V* EI UMa CV* 08 38 21.9952217352 +48 38 02.163728328   14.9 14.78     ~ 97 1
12 V* CU Vel CV* 08 58 33.0342318672 -41 47 51.733120236           ~ 109 0
13 V* BK Lyn CV* 09 20 11.2020621696 +33 56 42.356468364   13.97 13.99 14.72   ~ 125 1
14 V* OY Car CV* 10 06 22.0793274312 -70 14 04.584660540           ~ 586 0
15 V* V436 Cen CV* 11 14 00.0568720872 -37 40 47.763655572           ~ 148 0
16 V* QZ Vir CV* 11 38 26.8241432424 +03 22 07.110298596     15.81     ~ 269 1
17 V* AL Com CV* 12 32 25.7951754648 +14 20 42.292188276     16.2     ~ 249 0
18 V* GO Com CV* 12 56 37.0931472264 +26 36 43.236800316           ~ 85 0
19 G 61-29 CV* 13 05 42.4009686696 +18 01 03.763561619   16.059 16.101 15.825   DBe 284 0
20 V* CR Boo CV* 13 48 55.2218717736 +07 57 35.724118680     15.00     ~ 185 0
21 V* V426 Oph CV* 18 07 51.6919772928 +05 51 47.804055084           ~ 182 0
22 V* V603 Aql No* 18 48 54.6369872232 +00 35 02.857106184 10.73 12.106 12.087 11.986   OB+e: 564 0
23 V* V345 Pav CV* 19 35 42.9086577984 -59 08 22.724922804 13.61 13.82 13.69     ~ 33 0
24 V* EY Cyg CV* 19 54 36.7420149648 +32 21 55.087471404           sdBe+K0V 125 0
25 V* WZ Sge CV* 20 07 36.5037622512 +17 42 14.733254952   15.30 15.20 10.817   D 982 0
26 V* SS Cyg CV* 21 42 42.8034497592 +43 35 09.867842484 11.07 12.651 12.032 9.326   K5V 1324 1
27 V* LS Peg CV* 21 51 57.9373184400 +14 06 53.271115344   11.886 11.800 12.4   ~ 100 0
28 V* RU Peg CV* 22 14 02.5505986656 +12 42 11.278107972     12     sdBe+G8IV:n 322 0
29 V* KT Peg RS* 23 39 30.9712062189 +28 14 47.415889813   7.71   6.6   G8 102 0

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