The burst spectra of EXO 0748-676 during a long 2003 XMM-Newton observation

J. Cottam; F. Paerels; M. Méndez; L. Boirin; W. H.G. Lewin; E. Kuulkers; J. M. Miller

doi:10.1086/524186

The burst spectra of EXO 0748-676 during a long 2003 XMM-Newton observation

J. Cottam^*
, F. Paerels
, M. Méndez
, L. Boirin
, W. H.G. Lewin
, E. Kuulkers
, J. M. Miller

^*Corresponding author for this work

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

56 Citations (Scopus)

Abstract

Gravitationally redshifted absorption lines from highly ionized iron have been previously identified in the burst spectra of the neutron star in EXO 0748-676. To repeat this detection we obtained a long, nearly 600 ks observation of the source with XMM-Newton in 2003. The spectral features seen in the burst spectra from the initial data are not reproduced in the burst spectra from this new data. In this paper we present the spectra from the 2003 observations and discuss the sensitivity of the absorption structure to changes in the photospheric conditions.

Original language	English
Pages (from-to)	504-509
Number of pages	6
Journal	Astrophysical Journal
Volume	672
Issue number	1
DOIs	https://doi.org/10.1086/524186
Publication status	Published - 1-Jan-2008
Externally published	Yes

Keywords

Binaries: general
Stars: individual (EXO 0748-676)
Stars: neutron
X-rays: binaries
X-rays: bursts

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title = "The burst spectra of EXO 0748-676 during a long 2003 XMM-Newton observation",

abstract = "Gravitationally redshifted absorption lines from highly ionized iron have been previously identified in the burst spectra of the neutron star in EXO 0748-676. To repeat this detection we obtained a long, nearly 600 ks observation of the source with XMM-Newton in 2003. The spectral features seen in the burst spectra from the initial data are not reproduced in the burst spectra from this new data. In this paper we present the spectra from the 2003 observations and discuss the sensitivity of the absorption structure to changes in the photospheric conditions.",

keywords = "Binaries: general, Stars: individual (EXO 0748-676), Stars: neutron, X-rays: binaries, X-rays: bursts",

author = "J. Cottam and F. Paerels and M. M{\'e}ndez and L. Boirin and Lewin, \{W. H.G.\} and E. Kuulkers and Miller, \{J. M.\}",

year = "2008",

month = jan,

day = "1",

doi = "10.1086/524186",

language = "English",

volume = "672",

pages = "504--509",

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T1 - The burst spectra of EXO 0748-676 during a long 2003 XMM-Newton observation

AU - Cottam, J.

AU - Paerels, F.

AU - Méndez, M.

AU - Boirin, L.

AU - Lewin, W. H.G.

AU - Kuulkers, E.

AU - Miller, J. M.

PY - 2008/1/1

Y1 - 2008/1/1

N2 - Gravitationally redshifted absorption lines from highly ionized iron have been previously identified in the burst spectra of the neutron star in EXO 0748-676. To repeat this detection we obtained a long, nearly 600 ks observation of the source with XMM-Newton in 2003. The spectral features seen in the burst spectra from the initial data are not reproduced in the burst spectra from this new data. In this paper we present the spectra from the 2003 observations and discuss the sensitivity of the absorption structure to changes in the photospheric conditions.

AB - Gravitationally redshifted absorption lines from highly ionized iron have been previously identified in the burst spectra of the neutron star in EXO 0748-676. To repeat this detection we obtained a long, nearly 600 ks observation of the source with XMM-Newton in 2003. The spectral features seen in the burst spectra from the initial data are not reproduced in the burst spectra from this new data. In this paper we present the spectra from the 2003 observations and discuss the sensitivity of the absorption structure to changes in the photospheric conditions.

KW - Binaries: general

KW - Stars: individual (EXO 0748-676)

KW - Stars: neutron

KW - X-rays: binaries

KW - X-rays: bursts

UR - https://www.scopus.com/pages/publications/40249113068

U2 - 10.1086/524186

DO - 10.1086/524186

M3 - Article

AN - SCOPUS:40249113068

SN - 0004-637X

VL - 672

SP - 504

EP - 509

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

ER -

The burst spectra of EXO 0748-676 during a long 2003 XMM-Newton observation

Abstract

Keywords

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