2016ApJ...830...56J


Query : 2016ApJ...830...56J

2016ApJ...830...56J - Astrophys. J., 830, 56-56 (2016/October-3)

PALOMA: a magnetic CV between polars and intermediate polars.

JOSHI A., PANDEY J.C., SINGH K.P. and AGRAWAL P.C.

Abstract (from CDS):

We present analyses of archival X-ray data obtained from the XMM-Newton satellite and optical photometric data obtained from 1 m class telescopes of ARIES, Nainital of a magnetic cataclysmic variable (MCV) Paloma. Two persistent periods at 156 ± 1 minutes and 130 ± 1 minutes are present in the X-ray data, which we interpret as the orbital and spin periods, respectively. These periods are similar to those obtained from the previous as well as new optical photometric observations. The soft-X-ray excess seen in the X-ray spectrum of Paloma and the averaged X-ray spectra are well fitted by two-temperature plasma models with temperatures of 0.10–0.01+0.02 and 13.0–0.5+0.5 keV with an Fe Kα line and an absorbing column density of 4.6 x 1022 cm–2. This material partially covers 60 ± 2% of the X-ray source. We also present the orbital and spin-phase-resolved spectroscopy of Paloma in the 0.3\mbox–10.0 keV energy band and find that the X-ray spectral parameters show orbital and spin-phase dependencies. New results obtained from optical and X-ray studies of Paloma indicate that it belongs to a class of a few magnetic CVs that seem to have the characteristics of both the polars and the intermediate polars.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): accretion, accretion disks - binaries: close - novae, cataclysmic variables - stars: individual: Paloma - X-rays: binaries - X-rays: stars - X-rays: stars

Simbad objects: 21

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Number of rows : 21
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 V* GK Per No* 03 31 12.0098863320 +43 54 15.469951212   14.139 13.090 12.589   K1IV 986 0
2 V* UU Col CV* 05 12 13.2335083440 -32 41 39.743719692   17.72       ~ 50 0
3 2MASS J05243042+4244506 CV* 05 24 30.4643309280 +42 44 50.460570600           ~ 55 0
4 V* BY Cam CV* 05 42 48.8013535344 +60 51 31.376128608   16.60       ~ 270 0
5 V* TX Col CV* 05 43 20.16864 -41 01 54.2856         14.541 ~ 167 0
6 V* V405 Aur CV* 05 57 59.2934496792 +53 53 44.926489464           ~ 140 0
7 V* MU Cam XB* 06 25 16.2519466536 +73 34 39.105603804       14.3   ~ 77 0
8 V* BG CMi CV* 07 31 29.0079060264 +09 56 23.030740248   14.5       ~ 246 0
9 V* PQ Gem CV* 07 51 17.3280306912 +14 44 23.874868716   14.415 14.162 13.945   ~ 237 0
10 V* NY Lup XB* 15 48 14.5961462732 -45 28 39.918849218       14.544   K0/3Ve 109 0
11 V* V2400 Oph CV* 17 12 36.4233668016 -24 14 44.773987164     14.5     ~ 169 0
12 1RXS J171935.6-410054 CV* 17 19 35.8927822656 -41 00 53.529823332   15.60 15.20 15.33 14.3 ~ 68 0
13 V* V697 Sco No* 17 51 21.9236050346 -37 24 56.687843001           ~ 35 0
14 V* DQ Her CV* 18 07 30.2510391864 +45 51 32.564791872   14.605 14.443 14.800   M3+Ve 1048 1
15 V* AM Her CV* 18 16 13.2546725104 +49 52 04.759613537   15.124 14.808 13.525   M4.5-5Ve 1009 2
16 V* V1223 Sgr CV* 18 55 02.3108012664 -31 09 49.584656268           ~ 347 0
17 V* V1432 Aql CV* 19 40 11.4199326288 -10 25 25.771706256     14.40 15.437   ~ 181 0
18 V* V1500 Cyg No* 21 11 36.5809818696 +48 09 01.952490204           ~ 820 0
19 V* CD Ind CV* 21 15 41.0450813472 -58 40 54.058462428           ~ 108 0
20 V* FO Aqr CV* 22 17 55.3796835600 -08 21 03.754995948   13.533 13.445 13.414   ~ 378 0
21 V* AO Psc CV* 22 55 17.9860863984 -03 10 39.981831564           ~ 327 0

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