CC Sculptoris: Eclipsing SU UMa-type intermediate polar

被引:5
作者
Kato, Taichi [1 ]
Hambsch, Franz-Josef [2 ,3 ,4 ]
Oksanen, Arto [5 ]
Starr, Peter [6 ]
Henden, Arne [7 ]
机构
[1] Kyoto Univ, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan
[2] GEOS, F-28300 Bailleau Leveque, France
[3] Bundesdeutsche Arbeitsgemeinschaft Veranderl Ster, D-12169 Berlin, Germany
[4] VVS, B-2400 Mol, Belgium
[5] Nyrola Observ, Jyvaskylan Sirius Ry, FI-40270 Palokka, Finland
[6] Warrumbungle Observ, Coonabarabran, NSW 2357, Australia
[7] Amer Assoc Variable Star Observers, Cambridge, MA 02138 USA
关键词
accretion; accretion disks; novae; cataclysmic variables; stars: dwarf novae; stars: individual (CC Sculptoris); KEPLER LIGHT-CURVE; CATACLYSMIC VARIABLES; DWARF-NOVA; PERIOD VARIATIONS; RAPID OSCILLATIONS; HT-CAMELOPARDALIS; URSAE MAJORIS; SDSS J080434.20+510349.2; YY-DRACONIS; V1504; CYGNI;
D O I
10.1093/pasj/psu128
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We observed the 2014 superoutburst of the SU UMa-type intermediate polar CC Scl. We detected superhumps with a mean period of 0.05998(2) d during the superoutburst plateau and during three nights after the fading. During the post-superoutburst stage after three nights, a stable superhump period of 0.059523(6) d was detected. We found that this object is an eclipsing system with an orbital period of 0.058567233(8) d. By assuming that the disk radius in the post-superoutburst phase is similar to those in other SU UMa-type dwarf novae, we obtained a mass ratio of q = 0.072(3) from the dynamical precession rate of the accretion disk. The eclipse profile during outbursts can be modeled by an inclination of 80 degrees.6 +/- 0 degrees.5. The 2014 superoutburst was preceded by a precursor outburst and the overall appearance of the outburst was similar to superoutbursts in ordinary SU UMa-type dwarf novae. We showed that the standard thermal-tidal instability model can explain the outburst behavior in this system and suggest that inner truncation of the disk by magnetism of the white dwarf does not strongly affect the behavior in the outer part of the disk.
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页数:11
相关论文
共 54 条
[1]  
Andronov I. L., 1991, IBVS, P3614
[2]   HS 2331+3905:: The cataclysmic variable that has it all [J].
Araujo-Betancor, S ;
Gänsicke, BT ;
Hagen, HJ ;
Marsh, TR ;
Harlaftis, ET ;
Thorstensen, J ;
Fried, RE ;
Schmeer, P ;
Engels, D .
ASTRONOMY & ASTROPHYSICS, 2005, 430 (02) :629-642
[3]  
Augusteijn T, 1997, ASTRON ASTROPHYS, V324, pL57
[4]   Discovery of a new SU UMa-type dwarf nova, V 1028 Cygni [J].
Baba, H ;
Kato, T ;
Nogami, D ;
Hirata, R ;
Matsumoto, K ;
Sadakane, K .
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2000, 52 (03) :429-436
[5]  
BIANCHINI A, 1986, ASTRON ASTROPHYS, V160, P367
[6]   Cataclysmic variables in the Edinburgh-Cape Blue Object Survey [J].
Chen, A ;
O'Donoghue, D ;
Stobie, RS ;
Kilkenny, D ;
Warner, B .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2001, 325 (01) :89-110
[7]   ROBUST LOCALLY WEIGHTED REGRESSION AND SMOOTHING SCATTERPLOTS [J].
CLEVELAND, WS .
JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION, 1979, 74 (368) :829-836
[8]   X-ray confirmation of the intermediate polar HT Cam [J].
de Martino, D ;
Matt, G ;
Mukai, K ;
Bonnet-Bidaud, JM ;
Gänsicke, BT ;
Perez, JMG ;
Haberl, F ;
Mouchet, M ;
Solheim, JE .
ASTRONOMY & ASTROPHYSICS, 2005, 437 (03) :935-945
[9]   FIRST RESULTS FROM THE CATALINA REAL-TIME TRANSIENT SURVEY [J].
Drake, A. J. ;
Djorgovski, S. G. ;
Mahabal, A. ;
Beshore, E. ;
Larson, S. ;
Graham, M. J. ;
Williams, R. ;
Christensen, E. ;
Catelan, M. ;
Boattini, A. ;
Gibbs, A. ;
Hill, R. ;
Kowalski, R. .
ASTROPHYSICAL JOURNAL, 2009, 696 (01) :870-884
[10]   HT Camelopardalis: the simplest intermediate polar spin pulse [J].
Evans, PA ;
Hellier, C .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 359 (04) :1531-1536