2009A&A...496..121B


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.09CET09:52:20

2009A&A...496..121B - Astronomy and Astrophysics, volume 496, 121-127 (2009/3-2)

Intermediate polars in the Swift/BAT survey: spectra and white dwarf masses.

BRUNSCHWEIGER J., GREINER J., AJELLO M. and OSBORNE J.

Abstract (from CDS):

White dwarf masses in cataclysmic variables are difficult to determine accurately, but are fundamental for understanding binary system parameters, as well as binary evolution. We investigate the X-ray spectral properties of a sample of Intermediate Polars (IP) detected above 15keV to derive the masses of their accreting white dwarfs. We use data from the Swift/BAT instrument which during the first 2.5yrs of operation has detected 22 known intermediate polars. The X-ray spectra of these sources are used to estimate the mass of the white dwarfs. We are able to produce a mass estimate for 22 out of 29 of the confirmed intermediate polars. Comparison with previous mass measurements shows good agreement. For GK Per, we were able to detect spectral changes due to the changes in the accretion rate. The Swift/BAT detector with its combination of sensitivity and all-sky coverage provides an ideal tool to determine accurate white dwarf masses in intermediate polars. This method should be applied to other magnetic white dwarf binaries.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - stars: binaries: general

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 - 2021
#notes
1 V* V1033 Cas No* 00 22 57.6446745715 +61 41 07.570544184           ~ 44 0
2 V* V709 Cas DQ* 00 28 48.8268573576 +59 17 22.032796585     14.01     ~ 115 0
3 V* XY Ari DQ* 02 56 08.185 +19 26 34.12           ~ 139 1
4 V* GK Per No* 03 31 12.0096626899 +43 54 15.467450081   10.2 14.0     K1IV 874 0
5 V* V1062 Tau No* 05 02 27.4781389386 +24 45 23.157011296           ~ 62 0
6 V* UU Col DQ* 05 12 13.2336376173 -32 41 39.746182397   17.72       ~ 40 0
7 V* TV Col No* 05 29 25.5292527066 -32 49 03.900974253     13.60     K1 309 0
8 V* TX Col DQ* 05 43 20.17 -41 01 54.3   14.5       ~ 137 0
9 V* V405 Aur DQ* 05 57 59.2933859041 +53 53 44.925664551           ~ 114 0
10 V* MU Cam XB* 06 25 16.2520524762 +73 34 39.104874988       14.3   ~ 61 0
11 V* BG CMi DQ* 07 31 29.0080158733 +09 56 23.029183793   14.5       ~ 210 0
12 SWIFT J0732.6-1330 XB* 07 32 37.6290591506 -13 31 09.401187811     15.7     ~ 35 0
13 V* PQ Gem DQ* 07 51 17.3278781437 +14 44 23.875020784           ~ 207 0
14 V* HT Cam DQ* 07 57 01.3365989918 +63 06 02.000878897   16.36       ~ 68 0
15 V* DW Cnc CV* 07 58 53.0399476790 +16 16 45.171023042           ~ 51 0
16 V* WX Pyx XB* 08 33 05.7636195407 -22 48 31.980759704   18.0       ~ 35 0
17 V* DO Dra DN* 11 43 38.4924789768 +71 41 20.559348288       13.747   DQ 200 1
18 V* V1025 Cen DQ* 12 38 16.3192991908 -38 42 45.842752382   15.20       ~ 61 0
19 V* EX Hya DN* 12 52 24.2220533405 -29 14 56.001981146   13.51 13.49 13.55   M5-6V 655 0
20 V* NY Lup XB* 15 48 14.5960047636 -45 28 39.918343697     14.50 14.42   K0/3Ve 81 1
21 V* V2400 Oph DQ* 17 12 36.4232271716 -24 14 44.775129023     14.5     ~ 130 0
22 1H 1726-058 CV* 17 30 21.9016472695 -05 59 31.840647628   17.04 16.15     ~ 72 0
23 V* DQ Her No* 18 07 30.2510755201 +45 51 32.564649735   12.99 15.16 11.46   M3+Ve 969 1
24 V* V1223 Sgr DQ* 18 55 02.3109253503 -31 09 49.589704079           ~ 305 0
25 V* V2306 Cyg XB* 19 58 14.4693308282 +32 32 42.002218648 15.16 15.94 15.71 15.76   ~ 57 0
26 V* AE Aqr DQ* 20 40 09.1598509019 -00 52 15.057042857   12.46 10.40   10.191 K3-5IV/V 618 0
27 RX J2133.7+5107 CV* 21 33 43.6347819631 +51 07 24.730222487   15.80       ~ 62 0
28 V* FO Aqr DQ* 22 17 55.3796324299 -08 21 03.755362145           ~ 328 0
29 V* AO Psc DQ* 22 55 17.9860142780 -03 10 39.982033015           ~ 290 0

    Equat.    Gal    SGal    Ecl

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2021.03.09-09:52:20

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