IGR J17544-2619: A new supergiant fast X-ray transient revealed by optical/infrared observations

L. J. Pellizza; S. Chaty; I. Negueruela

doi:10.1051/0004-6361:20054436

IGR J17544-2619: A new supergiant fast X-ray transient revealed by optical/infrared observations

L. J. Pellizza, S. Chaty, I. Negueruela

Research output: Contribution to journal › Article › peer-review

Abstract

One of the most recent discoveries of the INTEGRAL observatory is the existence of a previously unknown population of X-ray sources in the inner arms of the Galaxy. IGR J17544-2619, IGR J16465-4507 and XTE J1739-302 are among these sources. Although the nature of these systems is still unexplained, the investigations of the optical/NIR counterparts of the two last sources, combined with high energy data, have provided evidence of them being highly absorbed high mass X-ray binaries with blue supergiant secondaries and displaying fast X-ray transient behaviour. In this work we present our optical/NIR observations of IGR J17544-2619, aimed at identifying and characterizing its counterpart. We show that the source is a high mass X-ray binary at a distance of 2-4 kpc with a strongly absorbed O9Ib secondary, and discuss the nature of the system.

Original language	English
Pages (from-to)	653-658
Number of pages	6
Journal	Astronomy and Astrophysics
Volume	455
Issue number	2
DOIs	https://doi.org/10.1051/0004-6361:20054436
Publication status	Published - 1 Aug 2006
Externally published	Yes

Keywords

X-rays: binaries
X-rays: individual: IGR J17544-2619

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10.1051/0004-6361:20054436

Cite this

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title = "IGR J17544-2619: A new supergiant fast X-ray transient revealed by optical/infrared observations",

abstract = "One of the most recent discoveries of the INTEGRAL observatory is the existence of a previously unknown population of X-ray sources in the inner arms of the Galaxy. IGR J17544-2619, IGR J16465-4507 and XTE J1739-302 are among these sources. Although the nature of these systems is still unexplained, the investigations of the optical/NIR counterparts of the two last sources, combined with high energy data, have provided evidence of them being highly absorbed high mass X-ray binaries with blue supergiant secondaries and displaying fast X-ray transient behaviour. In this work we present our optical/NIR observations of IGR J17544-2619, aimed at identifying and characterizing its counterpart. We show that the source is a high mass X-ray binary at a distance of 2-4 kpc with a strongly absorbed O9Ib secondary, and discuss the nature of the system.",

keywords = "X-rays: binaries, X-rays: individual: IGR J17544-2619",

author = "Pellizza, \{L. J.\} and S. Chaty and I. Negueruela",

year = "2006",

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doi = "10.1051/0004-6361:20054436",

language = "English",

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pages = "653--658",

journal = "Astronomy and Astrophysics",

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TY - JOUR

T1 - IGR J17544-2619

T2 - A new supergiant fast X-ray transient revealed by optical/infrared observations

AU - Pellizza, L. J.

AU - Chaty, S.

AU - Negueruela, I.

PY - 2006/8/1

Y1 - 2006/8/1

N2 - One of the most recent discoveries of the INTEGRAL observatory is the existence of a previously unknown population of X-ray sources in the inner arms of the Galaxy. IGR J17544-2619, IGR J16465-4507 and XTE J1739-302 are among these sources. Although the nature of these systems is still unexplained, the investigations of the optical/NIR counterparts of the two last sources, combined with high energy data, have provided evidence of them being highly absorbed high mass X-ray binaries with blue supergiant secondaries and displaying fast X-ray transient behaviour. In this work we present our optical/NIR observations of IGR J17544-2619, aimed at identifying and characterizing its counterpart. We show that the source is a high mass X-ray binary at a distance of 2-4 kpc with a strongly absorbed O9Ib secondary, and discuss the nature of the system.

AB - One of the most recent discoveries of the INTEGRAL observatory is the existence of a previously unknown population of X-ray sources in the inner arms of the Galaxy. IGR J17544-2619, IGR J16465-4507 and XTE J1739-302 are among these sources. Although the nature of these systems is still unexplained, the investigations of the optical/NIR counterparts of the two last sources, combined with high energy data, have provided evidence of them being highly absorbed high mass X-ray binaries with blue supergiant secondaries and displaying fast X-ray transient behaviour. In this work we present our optical/NIR observations of IGR J17544-2619, aimed at identifying and characterizing its counterpart. We show that the source is a high mass X-ray binary at a distance of 2-4 kpc with a strongly absorbed O9Ib secondary, and discuss the nature of the system.

KW - X-rays: binaries

KW - X-rays: individual: IGR J17544-2619

U2 - 10.1051/0004-6361:20054436

DO - 10.1051/0004-6361:20054436

M3 - Article

AN - SCOPUS:33748428070

SN - 0004-6361

VL - 455

SP - 653

EP - 658

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 2

ER -

IGR J17544-2619: A new supergiant fast X-ray transient revealed by optical/infrared observations

Abstract

Keywords

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