2002A&A...383L..35C


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.23CEST10:59:09

2002A&A...383L..35C - Astronomy and Astrophysics, volume 383, L35-38 (2002/3-1)

Disk-jet connection in Cygnus X-3.

CHOUDHURY M., RAO A.R., VADAWALE S.V., ISHWARA-CHANDRA C.H. and JAIN A.K.

Abstract (from CDS):

We present the results of a detailed correlation study between the soft X-ray, hard X-ray, and radio emission (obtained from RXTE ASM, BATSE, and GBI observations, respectively) of the bright radio emitting Galactic X-ray binary Cygnus X-3. We detect a very strong positive correlation between the soft X-ray and radio emission during the low-hard and minor flaring periods of the source, and an anti-correlation between the soft and hard X-ray emissions. We present statistical arguments to suggest that the anti-correlation between the radio and hard X-ray emission, reported earlier, is primarily due to their correlation and anti-correlation, respectively, with the soft X-ray emission. We make a wide band X-ray spectral study using the pointed RXTE observations and detect a pivotal behaviour in the X-ray spectrum. We argue that this X-ray spectral pivoting is responsible for the anti-correlation between the soft and hard X-ray emissions. The strong correlation between the soft X-ray and radio emission suggests a close link between the accreting mechanism, plasma cloud surrounding the compact object and the radio emission.

Abstract Copyright:

Journal keyword(s): accretion - binaries: close - stars: individual: Cygnus X-3 - radio continuum: stars - X-rays: binaries

CDS comments: XTE J1550-534 is a misprint for XTE J1550-564.

Simbad objects: 8

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Number of rows : 8

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* KV UMa HXB 11 18 10.7922353051 +48 02 12.319175505     12.25     K5V-M1V 707 0
2 V* V381 Nor HXB 15 50 58.6520652623 -56 28 35.309070422   17.95 16.6     K3III 998 0
3 V* V821 Ara HXB 17 02 49.3810714542 -48 47 23.163091737 16.20 16.30 15.5     ~ 1701 0
4 NAME Great Annihilator LXB 17 43 54.83 -29 44 42.6           ~ 634 1
5 2XMM J180112.4-254436 LXB 18 01 12.40 -25 44 36.1           ~ 358 1
6 Granat 1915+105 LXB 19 15 11.54938 +10 56 44.7585           ~ 2233 0
7 HD 226868 HXB 19 58 21.6758193269 +35 12 05.782512305 9.38 9.72 8.91 8.42   O9.7Iabpvar 3845 0
8 V* V1521 Cyg HXB 20 32 25.78 +40 57 27.9           WN4/5-6/7 1742 2

    Equat.    Gal    SGal    Ecl

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2019.10.23-10:59:09

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