RXTE confirmation of the intermediate polar status of IGR J15094-6649

O. W. Butters; A. J. Norton; K. Mukai; E. J. Barlow

doi:10.1051/0004-6361/200911725

RXTE confirmation of the intermediate polar status of IGR J15094-6649

O. W. Butters^*, A. J. Norton, K. Mukai, E. J. Barlow

^*Corresponding author for this work

Bristol Medical School (PHS)

Research output: Contribution to journal › Article (Academic Journal) › peer-review

8 Citations (Scopus)

Abstract

Aims. We aim to establish the X-ray properties of the intermediate polar candidate IGR J15094-6649 and therefore confirm its inclusion into the class.

Methods. 42 856 s of X-ray data from RXTE was analysed. Frequency analysis was used to constrain temporal variations and spectral analysis used to characterise the emission and absorption properties.

Results. A spin period of 809.7 +/- 0.6 s is present, revealed as a complex pulse profile whose modulation depth decreases with increasing X-ray energy. The spectrum is well fitted by either a 17 +/- 4 keV Bremsstrahlung or Gamma = 1.8 +/- 0.1 power law, with an iron emission line feature and significant absorption in each case.

Conclusions. IGR J15094-6649 is confirmed to be an intermediate polar.

Original language	English
Pages (from-to)	L17-L19
Number of pages	3
Journal	Astronomy and Astrophysics
Volume	498
Issue number	2
DOIs	https://doi.org/10.1051/0004-6361/200911725
Publication status	Published - May 2009

Keywords

stars: binaries: general
stars: novae, cataclysmic variables
stars: individual: IGR J15094-6649
X-rays: binaries

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@article{02fedd71f4c044e38cd44716757a9f87,

title = "RXTE confirmation of the intermediate polar status of IGR J15094-6649",

abstract = "Aims. We aim to establish the X-ray properties of the intermediate polar candidate IGR J15094-6649 and therefore confirm its inclusion into the class.Methods. 42 856 s of X-ray data from RXTE was analysed. Frequency analysis was used to constrain temporal variations and spectral analysis used to characterise the emission and absorption properties.Results. A spin period of 809.7 +/- 0.6 s is present, revealed as a complex pulse profile whose modulation depth decreases with increasing X-ray energy. The spectrum is well fitted by either a 17 +/- 4 keV Bremsstrahlung or Gamma = 1.8 +/- 0.1 power law, with an iron emission line feature and significant absorption in each case.Conclusions. IGR J15094-6649 is confirmed to be an intermediate polar.",

keywords = "stars: binaries: general, stars: novae, cataclysmic variables, stars: individual: IGR J15094-6649, X-rays: binaries",

author = "Butters, {O. W.} and Norton, {A. J.} and K. Mukai and Barlow, {E. J.}",

year = "2009",

month = may,

doi = "10.1051/0004-6361/200911725",

language = "English",

volume = "498",

pages = "L17--L19",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

number = "2",

}

TY - JOUR

T1 - RXTE confirmation of the intermediate polar status of IGR J15094-6649

AU - Butters, O. W.

AU - Norton, A. J.

AU - Mukai, K.

AU - Barlow, E. J.

PY - 2009/5

Y1 - 2009/5

N2 - Aims. We aim to establish the X-ray properties of the intermediate polar candidate IGR J15094-6649 and therefore confirm its inclusion into the class.Methods. 42 856 s of X-ray data from RXTE was analysed. Frequency analysis was used to constrain temporal variations and spectral analysis used to characterise the emission and absorption properties.Results. A spin period of 809.7 +/- 0.6 s is present, revealed as a complex pulse profile whose modulation depth decreases with increasing X-ray energy. The spectrum is well fitted by either a 17 +/- 4 keV Bremsstrahlung or Gamma = 1.8 +/- 0.1 power law, with an iron emission line feature and significant absorption in each case.Conclusions. IGR J15094-6649 is confirmed to be an intermediate polar.

AB - Aims. We aim to establish the X-ray properties of the intermediate polar candidate IGR J15094-6649 and therefore confirm its inclusion into the class.Methods. 42 856 s of X-ray data from RXTE was analysed. Frequency analysis was used to constrain temporal variations and spectral analysis used to characterise the emission and absorption properties.Results. A spin period of 809.7 +/- 0.6 s is present, revealed as a complex pulse profile whose modulation depth decreases with increasing X-ray energy. The spectrum is well fitted by either a 17 +/- 4 keV Bremsstrahlung or Gamma = 1.8 +/- 0.1 power law, with an iron emission line feature and significant absorption in each case.Conclusions. IGR J15094-6649 is confirmed to be an intermediate polar.

KW - stars: binaries: general

KW - stars: novae, cataclysmic variables

KW - stars: individual: IGR J15094-6649

KW - X-rays: binaries

U2 - 10.1051/0004-6361/200911725

DO - 10.1051/0004-6361/200911725

M3 - Article (Academic Journal)

SN - 0004-6361

VL - 498

SP - L17-L19

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 2

ER -

RXTE confirmation of the intermediate polar status of IGR J15094-6649

Abstract

Keywords

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