A mini-state transition in Cygnus X-1

J. Malzac; P. O. Petrucci; E. Jourdain; M. Cadolle; P. Sizun; G. Pooley; C. Cabanac; S. Chaty; T. Belloni; J. Rodriguez; J. P. Roques; P. Durouchoux; A. Goldwurm; P. Laurent

A mini-state transition in Cygnus X-1

J. Malzac
, P. O. Petrucci
, E. Jourdain
, M. Cadolle
, P. Sizun
, G. Pooley
, C. Cabanac
, S. Chaty
, T. Belloni
, J. Rodriguez
, J. P. Roques
, P. Durouchoux
, A. Goldwurm
, P. Laurent

Research output: Contribution to journal › Conference article › peer-review

Abstract

We present the results of an INTEGRAL observation of Cygnus X-1 in an intermediate state. During our 4 days long observation, the source exhibited a strong flux and spectral variability correlated with the radio emission. The study of this broad band variability suggests that the source made a mini-state transition from a nearly hard state to a nearly soft state, and back.

Original language	English
Pages (from-to)	345-348
Number of pages	4
Journal	European Space Agency, (Special Publication) ESA SP
Issue number	622 SP
Publication status	Published - 1 Jul 2006
Externally published	Yes
Event	6th Integral Workshop - The Obscured Universe - Moscow, Russian Federation Duration: 2 Jul 2006 → 8 Jul 2006

Keywords

Black hole physics
Gamma-rays: observations
Radiation mechanisms: non-thermal
X-rays: binaries; radio continuum: stars
X-rays: individual: Cygnus X-1

Cite this

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title = "A mini-state transition in Cygnus X-1",

abstract = "We present the results of an INTEGRAL observation of Cygnus X-1 in an intermediate state. During our 4 days long observation, the source exhibited a strong flux and spectral variability correlated with the radio emission. The study of this broad band variability suggests that the source made a mini-state transition from a nearly hard state to a nearly soft state, and back.",

keywords = "Black hole physics, Gamma-rays: observations, Radiation mechanisms: non-thermal, X-rays: binaries; radio continuum: stars, X-rays: individual: Cygnus X-1",

author = "J. Malzac and Petrucci, \{P. O.\} and E. Jourdain and M. Cadolle and P. Sizun and G. Pooley and C. Cabanac and S. Chaty and T. Belloni and J. Rodriguez and Roques, \{J. P.\} and P. Durouchoux and A. Goldwurm and P. Laurent",

year = "2006",

month = jul,

day = "1",

language = "English",

pages = "345--348",

journal = "European Space Agency, (Special Publication) ESA SP",

issn = "0379-6566",

number = "622 SP",

note = "6th Integral Workshop - The Obscured Universe ; Conference date: 02-07-2006 Through 08-07-2006",

}

TY - JOUR

T1 - A mini-state transition in Cygnus X-1

AU - Malzac, J.

AU - Petrucci, P. O.

AU - Jourdain, E.

AU - Cadolle, M.

AU - Sizun, P.

AU - Pooley, G.

AU - Cabanac, C.

AU - Chaty, S.

AU - Belloni, T.

AU - Rodriguez, J.

AU - Roques, J. P.

AU - Durouchoux, P.

AU - Goldwurm, A.

AU - Laurent, P.

PY - 2006/7/1

Y1 - 2006/7/1

N2 - We present the results of an INTEGRAL observation of Cygnus X-1 in an intermediate state. During our 4 days long observation, the source exhibited a strong flux and spectral variability correlated with the radio emission. The study of this broad band variability suggests that the source made a mini-state transition from a nearly hard state to a nearly soft state, and back.

AB - We present the results of an INTEGRAL observation of Cygnus X-1 in an intermediate state. During our 4 days long observation, the source exhibited a strong flux and spectral variability correlated with the radio emission. The study of this broad band variability suggests that the source made a mini-state transition from a nearly hard state to a nearly soft state, and back.

KW - Black hole physics

KW - Gamma-rays: observations

KW - Radiation mechanisms: non-thermal

KW - X-rays: binaries; radio continuum: stars

KW - X-rays: individual: Cygnus X-1

UR - https://www.scopus.com/pages/publications/45749090638

M3 - Conference article

AN - SCOPUS:45749090638

SN - 0379-6566

SP - 345

EP - 348

JO - European Space Agency, (Special Publication) ESA SP

JF - European Space Agency, (Special Publication) ESA SP

IS - 622 SP

T2 - 6th Integral Workshop - The Obscured Universe

Y2 - 2 July 2006 through 8 July 2006

ER -

A mini-state transition in Cygnus X-1

Abstract

Keywords

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