2002MNRAS.335...44W


Query : 2002MNRAS.335...44W

2002MNRAS.335...44W - Mon. Not. R. Astron. Soc., 335, 44-52 (2002/September-1)

High-speed photometry of faint cataclysmic variables - II. RS Car, V365 Car, V436 Car, AP Cru, RR Cha, BI Ori, CM Phe and V522 Sgr.

WOUDT P.A. and WARNER B.

Abstract (from CDS):

Short time-scale photometric properties of eight faint cataclysmic variable (CV) stars are presented. Nova Carinae 1895 (RS Car) has a photometric modulation at 1.977 h that could be either an orbital or a superhump period. Nova Carinae 1948 (V365 Car) shows flickering, but any orbital modulation has a period in excess of 6 h. The nova-like variable and X-ray source V436 Car has an orbital modulation at Porb= 4.207 h, no detectable period near 2.67 h (which had previously given it a possible intermediate polar classification), and dwarf nova oscillations (DNOs) at ∼40 s. Nova Crucis 1936 (AP Cru) has a double-humped ellipsoidal modulation at Porb= 5.12 h and a stable modulation at 1837 s characteristic of an intermediate polar. Nova Chamaeleontis 1953 (RR Cha) is an eclipsing system with Porb= 3.362 h , but at times shows negative superhumps at 3.271 h and positive superhumps at 3.466 h. In addition it has a stable period at 1950 s, characteristic of an intermediate polar. BI Ori is a dwarf nova that we observed at quiescence and outburst without detecting any orbital modulation. CM Phe is a nova-like variable for which we confirm the value of Porb= 6.454 h found by Hoard, Wachter & Kim-Quijano). We have identified the remnant of Nova Sagittarii 1931 (V522 Sgr) with a flickering source ∼2.2 mag fainter than the previously proposed candidate (which we find to be non-variable).

Abstract Copyright: RAS

Journal keyword(s): techniques: photometric - stars: binaries: close - stars: binaries: eclipsing - stars: novae, cataclysmic variables.

Simbad objects: 13

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Number of rows : 13
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 V* CM Phe CV* 00 21 33.1733628456 -51 42 34.646175540   15.3       ~ 22 1
2 V* VW Hyi CV* 04 09 11.3967378648 -71 17 41.554528260   12.786 12.543 14.160   ?+L0:e 646 0
3 V* BI Ori CV* 05 23 51.7717113504 +01 00 30.622984056           ~ 38 0
4 V* V436 Car CV* 07 44 57.9397404792 -52 57 13.722484464           ~ 19 0
5 V* CP Pup No* 08 11 46.0634106720 -35 21 04.986480708   15.436 15.227     ~ 264 1
6 WRAY 16-84 No* 11 03 15.8734539216 -58 27 26.066235276           ~ 30 1
7 V* RS Car No* 11 08 05.7617258146 -61 56 08.059762958           ~ 35 0
8 V* GQ Mus No* 11 52 02.4296561952 -67 12 20.986391520           ~ 264 0
9 V* AP Cru No* 12 31 20.4375341256 -64 26 25.146591000           ~ 23 0
10 V* RR Cha No* 13 26 23.8779745891 -82 19 43.428706487           ~ 42 0
11 V* RW UMi No* 16 47 54.8186248248 +77 02 12.047306028           ~ 77 0
12 V* V522 Sgr CV? 18 48 00.4651517592 -25 22 21.987215472           ~ 20 0
13 V* V1974 Cyg No* 20 30 31.6546001712 +52 37 50.837478240           ~ 579 0

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