DISC-OVERFLOW ACCRETION IN THE INTERMEDIATE POLAR FO AQUARII

被引：49

作者：

HELLIER, C

机构：

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1993年 / 265卷 / 03期

关键词：

ACCRETION; ACCRETION DISKS; BINARIES; CLOSE; STARS; INDIVIDUAL; FO AQR; MAGNETIC FIELDS; NOVAE; CATACLYSMIC VARIABLES; X-RAYS;

D O I：

10.1093/mnras/265.1.L35

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Ginga X-ray light curve of FO Aqr shows spin, orbital and beat period modulations. Norton et al. have interpreted this as resulting from discless accretion. I show that the light curve is also compatible with a hybrid model in which accreting material flows through a disc and also in a stream above the disc. This alternative is supported by several lines of evidence.

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页码：L35 / L39

页数：5

相关论文

共 14 条

[1] X-RAY, ULTRAVIOLET, AND OPTICAL OBSERVATIONS OF THE INTERMEDIATE POLAR FO AQUARII (H2215-086) [J].

CHIAPPETTI, L ;

BELLONI, T ;

BONNETBIDAUD, JM ;

DELGRATTA, C ;

DEMARTINO, D ;

MARASCHI, L ;

MOUCHET, M ;

MUKAI, K ;

OSBORNE, JP ;

CORBET, RHD ;

TANZI, EG ;

TREVES, A .

ASTROPHYSICAL JOURNAL, 1989, 342 (01) :493-515

[2] OPTICAL AND X-RAY OBSERVATIONS OF AO PISCIUM AND THE ORIGIN OF THE SPIN PULSE IN INTERMEDIATE POLARS [J].

HELLIER, C ;

CROPPER, M ;

MASON, KO .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1991, 248 (02) :233-+

[3] DO OBSERVATIONS REVEAL ACCRETION DISKS IN INTERMEDIATE POLARS [J].

HELLIER, C .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1991, 251 (04) :693-697

[4] SPECTROSCOPY OF THE INTERMEDIATE POLAR FO-AQUARII [J].

HELLIER, C ;

MASON, KO ;

CROPPER, M .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1990, 242 (02) :250-&

[5] X-RAY ORBITAL MODULATIONS IN INTERMEDIATE POLARS [J].

HELLIER, C ;

GARLICK, MA ;

MASON, KO .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1993, 260 (02) :299-306

[6]

LIVIO M, 1993, IN PRESS ACCRETION D

[7] THE DISCOVERY OF ORBITAL DIPS IN THE SOFT-X-RAY EMISSION OF U-GEM DURING AN OUTBURST [J].

MASON, KO ;

CORDOVA, FA ;

WATSON, MG ;

KING, AR .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1988, 232 (04) :779-791

[8] A NEW, EUV-BRIGHT INTERMEDIATE POLAR DISCOVERED IN THE ROSAT WIDE FIELD CAMERA ALL-SKY SURVEY [J].

MASON, KO ;

WATSON, MG ;

PONMAN, TJ ;

CHARLES, PA ;

DUCK, SR ;

HASSALL, BJM ;

HOWELL, SB ;

ISHIDA, M ;

JONES, DHP ;

MITTAZ, JPD .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1992, 258 (04) :749-758

[9]

MASON KO, 1989, ESA SP296, P113

[10] A GINGA OBSERVATION OF FO-AQR - DISCLESS ACCRETION AND MULTIPLE EMISSION COMPONENTS [J].

NORTON, AJ ;

WATSON, MG ;

KING, AR ;

LEHTO, HJ ;

MCHARDY, IM .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1992, 254 (04) :705-718