RXTE confirmation of the intermediate polar status of Swift J0732.5-1331

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

doi:10.1051/0004-6361:20078700

RXTE confirmation of the intermediate polar status of Swift J0732.5-1331

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

^*Corresponding author for this work

Bristol Medical School (PHS)

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

15 Citations (Scopus)

Abstract

Aims. We intend to establish the X-ray properties of Swift J0732.5-1331 and therefore confirm its status as an intermediate polar.

Methods. We analysed 36 240 s of X-ray data from RXTE. Frequency analysis was used to constrain temporal variations and spectral analysis used to characterise the emission and absorption properties.

Results. The X-ray spin period is confirmed to be 512.4(3) s with a strong first harmonic. No modulation is detected at the candidate orbital period of 5.6 h, but a coherent modulation is present at the candidate 11.3 h period. The spectrum is consistent with a 37 keV bremsstrahlung continuum with an iron line at 6.4 keV absorbed by an equivalent hydrogen column density of around 1022 atoms cm(-2).

Conclusions. Swift J0732-1331 is confirmed to be an intermediate polar.

Original language	English
Pages (from-to)	L29-L32
Number of pages	4
Journal	Astronomy and Astrophysics
Volume	475
Issue number	2
DOIs	https://doi.org/10.1051/0004-6361:20078700
Publication status	Published - Nov 2007

Keywords

stars : binaries : general
stars : novae
cataclysmic variables
stars : individual : Swift J0732.5-1331
X-rays : binaries
MAGNETIC CATACLYSMIC VARIABLES

Access to Document

10.1051/0004-6361:20078700

Handle.net

Persistent link

Cite this

@article{11fabe01cf71470194fa830a18e35b6d,

title = "RXTE confirmation of the intermediate polar status of Swift J0732.5-1331",

abstract = "Aims. We intend to establish the X-ray properties of Swift J0732.5-1331 and therefore confirm its status as an intermediate polar.Methods. We analysed 36 240 s of X-ray data from RXTE. Frequency analysis was used to constrain temporal variations and spectral analysis used to characterise the emission and absorption properties.Results. The X-ray spin period is confirmed to be 512.4(3) s with a strong first harmonic. No modulation is detected at the candidate orbital period of 5.6 h, but a coherent modulation is present at the candidate 11.3 h period. The spectrum is consistent with a 37 keV bremsstrahlung continuum with an iron line at 6.4 keV absorbed by an equivalent hydrogen column density of around 1022 atoms cm(-2).Conclusions. Swift J0732-1331 is confirmed to be an intermediate polar.",

keywords = "stars : binaries : general, stars : novae, cataclysmic variables, stars : individual : Swift J0732.5-1331, X-rays : binaries, MAGNETIC CATACLYSMIC VARIABLES",

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

year = "2007",

month = nov,

doi = "10.1051/0004-6361:20078700",

language = "English",

volume = "475",

pages = "L29--L32",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

number = "2",

}

TY - JOUR

T1 - RXTE confirmation of the intermediate polar status of Swift J0732.5-1331

AU - Butters, O. W.

AU - Barlow, E. J.

AU - Norton, A. J.

AU - Mukai, K.

PY - 2007/11

Y1 - 2007/11

N2 - Aims. We intend to establish the X-ray properties of Swift J0732.5-1331 and therefore confirm its status as an intermediate polar.Methods. We analysed 36 240 s of X-ray data from RXTE. Frequency analysis was used to constrain temporal variations and spectral analysis used to characterise the emission and absorption properties.Results. The X-ray spin period is confirmed to be 512.4(3) s with a strong first harmonic. No modulation is detected at the candidate orbital period of 5.6 h, but a coherent modulation is present at the candidate 11.3 h period. The spectrum is consistent with a 37 keV bremsstrahlung continuum with an iron line at 6.4 keV absorbed by an equivalent hydrogen column density of around 1022 atoms cm(-2).Conclusions. Swift J0732-1331 is confirmed to be an intermediate polar.

AB - Aims. We intend to establish the X-ray properties of Swift J0732.5-1331 and therefore confirm its status as an intermediate polar.Methods. We analysed 36 240 s of X-ray data from RXTE. Frequency analysis was used to constrain temporal variations and spectral analysis used to characterise the emission and absorption properties.Results. The X-ray spin period is confirmed to be 512.4(3) s with a strong first harmonic. No modulation is detected at the candidate orbital period of 5.6 h, but a coherent modulation is present at the candidate 11.3 h period. The spectrum is consistent with a 37 keV bremsstrahlung continuum with an iron line at 6.4 keV absorbed by an equivalent hydrogen column density of around 1022 atoms cm(-2).Conclusions. Swift J0732-1331 is confirmed to be an intermediate polar.

KW - stars : binaries : general

KW - stars : novae

KW - cataclysmic variables

KW - stars : individual : Swift J0732.5-1331

KW - X-rays : binaries

KW - MAGNETIC CATACLYSMIC VARIABLES

U2 - 10.1051/0004-6361:20078700

DO - 10.1051/0004-6361:20078700

M3 - Article (Academic Journal)

SN - 0004-6361

VL - 475

SP - L29-L32

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 2

ER -

RXTE confirmation of the intermediate polar status of Swift J0732.5-1331

Abstract

Keywords

Access to Document

Handle.net

Fingerprint

Cite this