2011A&A...525L...6G


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.07CET16:22:53

2011A&A...525L...6G - Astronomy and Astrophysics, volume 525, L6-6 (2011/1-1)

Discovery of a peculiar dip from GX 301-2.

GOEGUES E., KREYKENBOHM I. and BELLONI T.M.

Abstract (from CDS):

We present temporal and spectral properties of a unique X-ray dip in GX 301-2 as seen with Rossi X-ray Timing Explorer in May 2010. The X-ray pulsation from the source gradually declined prior to the dip, disappears for one spin cycle during the dip, and is abruptly restored in the spin cycle immediately after the dip. Moreover, the phase-integrated spectrum of the source becomes softer before and during the dip, and it quickly hardens again following the dip. Our findings indicate that the mechanism for pulsations gradually turned off briefly, and the underlying dim and softer emission likely from the accretion column became observable in the brief absence of high-level emission due to wind accretion.

Abstract Copyright:

Journal keyword(s): X-rays: stars - pulsars: individual: GX 301-2

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 - 2021
#notes
1 V* GP Vel HXB 09 02 06.8610736194 -40 33 16.896402010 6.85 7.37 6.87 6.31 6.05 B0.5Ia 1385 0
2 V* BP Cru HXB 12 26 37.5607088371 -62 46 13.259605389   12.70 10.66     B1.5Iaeq 614 0
3 V* V2116 Oph Sy* 17 32 02.1544831482 -24 44 44.125962969   20.78 18.4     M6IIIe 652 1
4 3FHL J1746.2-2852 LXB 17 44 33.09 -28 44 27.0           ~ 497 0

    Equat.    Gal    SGal    Ecl

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2021.03.07-16:22:53

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