2014A&A...571A..76D


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.23CEST00:51:51

2014A&A...571A..76D - Astronomy and Astrophysics, volume 571A, 76-76 (2014/11-1)

XMM-Newton observations reveal the disappearance of the wind in 4U 1630-47.

DIAZ TRIGO M., MIGLIARI S., MILLER-JONES J.C.A. and GUAINAZZI M.

Abstract (from CDS):

We report on XMM-Newton observations of the black hole X-ray binary 4U 1630-47 during its 2012-2013 outburst. The first five observations monitor the source as its luminosity increases across the high-soft state of accretion. In the sixth observation the source has made a transition to an ``anomalous'' state, characterised by a significant contribution of electron scattering. A thermally/radiatively driven disc wind is present in the first four observations, which becomes more photoionised as the luminosity increases with time. In the fifth observation, the wind is not observed any more as a consequence of strong photoionisation and the low sensitivity of this observation. This overall trend is then consistent with a fully ionised wind causing the electron scattering characteristic of the anomalous state in the sixth observation. A broad iron emission line co-exists with the absorption features from the wind in the first four observations but is not visible in the last two observations. We find that the changes in the state of the wind as measured from modelling the absorption features with a self-consistent warm absorber model are correlated to the changes in the broad iron line. When the latter is modelled with a reflection component we find that the reflection fraction decreases as the illumination increases. We propose that the changes in both the absorption and broad emission lines are caused by the increasing luminosity and temperature of the accretion disc along the soft state. Such changes ultimately enable the transition to a state where the wind is fully ionised and consequently Comptonisation plays a significant role.

Abstract Copyright:

Journal keyword(s): X-rays: binaries - accretion, accretion disks - X-rays: individuals: 4U 1630-47

Simbad objects: 13

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Number of rows : 13

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 V* GR Mus LXB 12 57 37.153 -69 17 18.98   19.40 19.1     ~ 239 0
2 MAXI J1305-704 XB* 13 06 55.300 -70 27 05.11           ~ 37 0
3 V* V381 Nor HXB 15 50 58.6520652623 -56 28 35.309070422   17.95 16.6     K3III 998 0
4 X Nor X-1 LXB 16 34 01.610 -47 23 34.80           ~ 405 0
5 V* V1033 Sco HXB 16 54 00.137 -39 50 44.90   15.20 14.2 16.14   F5IV 1666 1
6 V* V821 Ara HXB 17 02 49.3810714542 -48 47 23.163091737 16.20 16.30 15.5     ~ 1701 0
7 NAME XTE J17464-3213 LXB 17 46 15.59637 -32 14 00.8600           ~ 569 0
8 IGR J17480-2446 LXB 17 48 04.831 -24 46 48.87           ~ 142 0
9 4U 1746-371 LXB 17 50 12.66 -37 03 08.2           ~ 180 1
10 [KRL2007b] 304 LXB 18 06 59.8 -29 24 30           ~ 192 0
11 V* V5512 Sgr LXB 18 14 31.55 -17 09 26.7           K5III 346 0
12 V* V1333 Aql LXB 19 11 16.05 +00 35 05.8 15.00 15.40 14.8     ~ 989 0
13 Granat 1915+105 LXB 19 15 11.54938 +10 56 44.7585           ~ 2233 0

    Equat.    Gal    SGal    Ecl

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2019.10.23-00:51:51

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