2005ApJ...634L..97P

Query : 2005ApJ...634L..97P

2005ApJ...634L..97P - Astrophys. J., 634, L97-L100 (2005/November-3)

RXTE discovery of multiple cyclotron lines during the 2004 December outburst of V0332+53.

POTTSCHMIDT K., KREYKENBOHM I., WILMS J., COBURN W., ROTHSCHILD R.E., KRETSCHMAR P., McBRIDE V., SUCHY S. and STAUBERT R.

Abstract (from CDS):

We present an analysis of the 2-150 keV spectrum of the transient X-ray pulsar V0332+53 taken with the Rossi X-Ray Timing Explorer (RXTE) in 2004 December. We report on the detection of three cyclotron resonance features at 27, 51, and 74 keV in the phase-averaged data, corresponding to a polar magnetic field of 2.7x1012 G. After 4U 0115+63, this makes V0332+53 the second accreting neutron star in which more than two cyclotron lines have been detected; this has now also been confirmed by INTEGRAL. Pulse-phase spectroscopy reveals remarkably little variability of the cyclotron line through the 4.4 s X-ray pulse.

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Journal keyword(s): Stars: Pulsars: Individual: Alphanumeric: V0332+53 - Stars: Flare - Stars: Magnetic Fields - X-Rays: Binaries - X-Rays: Stars

Simbad objects: 4

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Number of rows : 4
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* V635 Cas HXB 01 18 31.9704955824 +63 44 33.072603144 17.05 16.64 15.19 14.34 13.22 B0.2Ve 791 0
2 V* BQ Cam HXB 03 34 59.9116110096 +53 10 23.296879776   17.16 15.42 14.26 13.04 O8.5Ve 525 1
3 V* GP Vel HXB 09 02 06.8608812864 -40 33 16.899168060 6.85 7.37 6.87 6.31 6.05 B0.5Ia 1588 0
4 V* BP Cru HXB 12 26 37.5605188992 -62 46 13.261044684   12.482 10.803 10.304   B1Ia+ 731 0

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