C.D.S. - SIMBAD4 rel 1.7 - 2020.07.03CEST22:44:20

2011A&A...526A..84Z - Astronomy and Astrophysics, volume 526A, 84-84 (2011/2-1)

Virtual observatory based identification of AX J194939+2631 as a new cataclysmic variable.


Abstract (from CDS):

We report the discovery of a new cataclysmic variable (CV) among unidentified objects from the ASCA Galactic Plane Survey made using the Virtual Observatory data mining. First, we identified AX J1949.6+2631{AX J194939+2631} with IPHAS J194938.39+263149.2, the only prominent Hα emitter among 400 sources in a 1 arcmin field of the IPHAS survey, then secured as a single faint X-ray source found in an archival Chandra dataset. Spectroscopic follow-up with the 3.5-m Calar Alto telescope confirmed its classification as a CV, possibly of magnetic nature. Our analysis suggests that AX J194939+2631 is a medium distance system (d≃0.6kpc) containing a late-K or early-M type dwarf as a secondary component and a partially disrupted accretion disc revealed by the double-peaked Hα line. However, additional deep observations are needed to confirm our tentative classification of this object as an intermediate polar.

Abstract Copyright:

Journal keyword(s): novae, cataclysmic variables - X-rays: binaries - X-rays: individual: AX J194939+2631 - stars: individual: IPHAS J194938.39+263149.2

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
1 AX J1949.6+2631 X 19 49 40 +26 31.8           ~ 2 0
2 Feige 110 HS* 23 19 58.3995050606 -05 09 56.170282845 10.360 11.45 11.50 11.970 12.145 sdO8VIIIHe5 552 1
3 NAME Galactic Ridge ? ~ ~           ~ 427 1

    Equat.    Gal    SGal    Ecl

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