Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGRJ17448-3232: A blazar candidate viewed through the Galactic Centre?

P. A. Curran; S. Chaty; J. A. Zurita Heras; J. A. Tomsick; T. J. Maccarone

doi:10.1111/j.1745-3933.2011.01113.x

Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGRJ17448-3232: A blazar candidate viewed through the Galactic Centre?

P. A. Curran
, S. Chaty
, J. A. Zurita Heras
, J. A. Tomsick
, T. J. Maccarone

Universite Paris-Saclay
Laboratoire de Probabilités et Modèles Aléatoires
University of California, Space Sciences Laboratory
University of Southampton

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

Abstract

We present our near-infrared ESO-NTT K_S band observations of the field of IGRJ17448-3232 which show no extended emission consistent with the supernova remnant (SNR), but in which we identify a new counterpart, also visible in Spitzer images up to 24μm, at the position of the X-ray point source, CXOUJ174437.3-323222. Multiwavelength spectral modelling shows that the data are consistent with a reddened and absorbed single power law over 5 orders of magnitude in frequency. This implies non-thermal, possibly synchrotron emission that renders the previous identification of this source as a possible pulsar, and its association to the SNR, unlikely; we instead propose that the emission may be due to a blazar viewed through the plane of the Galaxy.

Original language	English
Pages (from-to)	L26-L30
Journal	Monthly Notices of the Royal Astronomical Society: Letters
Volume	417
Issue number	1
DOIs	https://doi.org/10.1111/j.1745-3933.2011.01113.x
Publication status	Published - 1 Jan 2011
Externally published	Yes

Keywords

Infrared: general
Radiation mechanisms: non-thermal
X-rays: individual: CXOUJ174437.3-323222
X-rays: individual: IGRJ17448-3232

Access to Document

10.1111/j.1745-3933.2011.01113.x

Cite this

@article{26fc841472fc4603b1d58b15a2252213,

title = "Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGRJ17448-3232: A blazar candidate viewed through the Galactic Centre?",

abstract = "We present our near-infrared ESO-NTT KS band observations of the field of IGRJ17448-3232 which show no extended emission consistent with the supernova remnant (SNR), but in which we identify a new counterpart, also visible in Spitzer images up to 24μm, at the position of the X-ray point source, CXOUJ174437.3-323222. Multiwavelength spectral modelling shows that the data are consistent with a reddened and absorbed single power law over 5 orders of magnitude in frequency. This implies non-thermal, possibly synchrotron emission that renders the previous identification of this source as a possible pulsar, and its association to the SNR, unlikely; we instead propose that the emission may be due to a blazar viewed through the plane of the Galaxy.",

keywords = "Infrared: general, Radiation mechanisms: non-thermal, X-rays: individual: CXOUJ174437.3-323222, X-rays: individual: IGRJ17448-3232",

author = "Curran, \{P. A.\} and S. Chaty and \{Zurita Heras\}, \{J. A.\} and Tomsick, \{J. A.\} and Maccarone, \{T. J.\}",

year = "2011",

month = jan,

day = "1",

doi = "10.1111/j.1745-3933.2011.01113.x",

language = "English",

volume = "417",

pages = "L26--L30",

journal = "Monthly Notices of the Royal Astronomical Society: Letters",

issn = "1745-3925",

number = "1",

}

Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGRJ17448-3232: A blazar candidate viewed through the Galactic Centre? / Curran, P. A.; Chaty, S.; Zurita Heras, J. A. et al.
In: Monthly Notices of the Royal Astronomical Society: Letters, Vol. 417, No. 1, 01.01.2011, p. L26-L30.

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

TY - JOUR

T1 - Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGRJ17448-3232

T2 - A blazar candidate viewed through the Galactic Centre?

AU - Curran, P. A.

AU - Chaty, S.

AU - Zurita Heras, J. A.

AU - Tomsick, J. A.

AU - Maccarone, T. J.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - We present our near-infrared ESO-NTT KS band observations of the field of IGRJ17448-3232 which show no extended emission consistent with the supernova remnant (SNR), but in which we identify a new counterpart, also visible in Spitzer images up to 24μm, at the position of the X-ray point source, CXOUJ174437.3-323222. Multiwavelength spectral modelling shows that the data are consistent with a reddened and absorbed single power law over 5 orders of magnitude in frequency. This implies non-thermal, possibly synchrotron emission that renders the previous identification of this source as a possible pulsar, and its association to the SNR, unlikely; we instead propose that the emission may be due to a blazar viewed through the plane of the Galaxy.

AB - We present our near-infrared ESO-NTT KS band observations of the field of IGRJ17448-3232 which show no extended emission consistent with the supernova remnant (SNR), but in which we identify a new counterpart, also visible in Spitzer images up to 24μm, at the position of the X-ray point source, CXOUJ174437.3-323222. Multiwavelength spectral modelling shows that the data are consistent with a reddened and absorbed single power law over 5 orders of magnitude in frequency. This implies non-thermal, possibly synchrotron emission that renders the previous identification of this source as a possible pulsar, and its association to the SNR, unlikely; we instead propose that the emission may be due to a blazar viewed through the plane of the Galaxy.

KW - Infrared: general

KW - Radiation mechanisms: non-thermal

KW - X-rays: individual: CXOUJ174437.3-323222

KW - X-rays: individual: IGRJ17448-3232

U2 - 10.1111/j.1745-3933.2011.01113.x

DO - 10.1111/j.1745-3933.2011.01113.x

M3 - Article

AN - SCOPUS:84055198651

SN - 1745-3925

VL - 417

SP - L26-L30

JO - Monthly Notices of the Royal Astronomical Society: Letters

JF - Monthly Notices of the Royal Astronomical Society: Letters

IS - 1

ER -

Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGRJ17448-3232: A blazar candidate viewed through the Galactic Centre?

Abstract

Keywords

Access to Document

Fingerprint

Cite this