2010A&A...513A..63R


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.15CEST08:32:03

2010A&A...513A..63R - Astronomy and Astrophysics, volume 513, A63-63 (2010/4-1)

Aperiodic optical variability of intermediate polars - cataclysmic variables with truncated accretion disks.

REVNIVTSEV M., BURENIN R., BIKMAEV I., KNIAZEV A., BUCKLEY D.A.H., PRETORIUS M.L., KHAMITOV I., AK T., EKER Z., MELNIKOV S., CRAWFORD S. and PAVLINSKY M.

Abstract (from CDS):

We study the power spectra of the variability of seven intermediate polars containing magnetized asynchronous accreting white dwarfs, XSS J00564+4548, IGR J00234+6141, DO Dra, V1223 Sgr, IGR J15094-6649, IGR J16500-3307 and IGR J17195-4100, in the optical band and demonstrate that their variability can be well described by a model based on fluctuations propagating in a truncated accretion disk. The power spectra have breaks at Fourier frequencies, which we associate with the Keplerian frequency of the disk at the boundary of the white dwarfs' magnetospheres. We propose that the properties of the optical power spectra can be used to deduce the geometry of the inner parts of the accretion disk, in particular: 1) truncation radii of the magnetically disrupted accretion disks in intermediate polars, 2) the truncation radii of the accretion disk in quiescent states of dwarf novae.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - instabilities - binaries: general - novae, cataclysmic variables - white dwarfs - stars variables: general

Simbad objects: 10

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Number of rows : 10

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 V* V1033 Cas No* 00 22 57.6446745715 +61 41 07.570544184           ~ 42 0
2 V* V515 And DQ* 00 55 19.9 +46 12 57           ~ 28 0
3 HD 245770 HXB 05 38 54.5749436467 +26 18 56.839215267 9.30 9.84 9.39 8.77 8.30 O9/B0III/Ve 870 0
4 V* YY Dra Al* 11 43 35 +71 42.2           ~ 28 1
5 V* DO Dra DN* 11 43 38.4924789768 +71 41 20.559348288       13.747   DQ 195 1
6 2MASS J15092601-6649232 DQ* 15 09 26.0167449792 -66 49 23.280117933           ~ 35 0
7 UCAC3 114-219187 DQ* 16 49 55.6382880123 -33 07 02.089929318   17.43 16.56 16.23   ~ 31 0
8 V* V2400 Oph DQ* 17 12 36.4232271717 -24 14 44.775129023     14.5     ~ 128 0
9 1RXS J171935.6-410054 CV* 17 19 35.8926842186 -41 00 53.529161029   15.60 15.20 15.33 14.3 ~ 50 0
10 V* V1223 Sgr DQ* 18 55 02.3109253503 -31 09 49.589704079           ~ 301 0

    Equat.    Gal    SGal    Ecl

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2020.07.15-08:32:03

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