Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-28T01:50:07.866Z Has data issue: false hasContentIssue false
  • English
  • Français

Prospecting the wind structure of IGR J16320–4751 with XMM-Newton and Swift

Published online by Cambridge University Press:  30 December 2019

F. García Open the ORCID record for F. García [Opens in a new window] ,
F. A. Fogantini ,
S. Chaty  and
J. A. Combi
F. García
Affiliation:
AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, F-91191 Gif-sur-Yvette, France email: [email protected]
F. A. Fogantini
Affiliation:
Instituto Argentino de Radioastronomía (CONICET; CICPBA) & Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Argentina
S. Chaty
Affiliation:
AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, F-91191 Gif-sur-Yvette, France email: [email protected]
J. A. Combi
Affiliation:
Instituto Argentino de Radioastronomía (CONICET; CICPBA) & Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Argentina
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

. The INTEGRAL satellite has revealed a previously hidden population of absorbed High Mass X-ray Binaries (HMXBs) hosting supergiant (SG) stars. Among them, IGR J16320–4751 is a classical system intrinsically obscured by its environment, with a column density of ~1023 cm-2, more than an order of magnitude higher than the interstellar absorption along the line of sight. It is composed of a neutron star (NS) rotating with a spin period of ~1300 s, accreting matter from the stellar wind of an O8I SG, with an orbital period of ~9 days. We analyzed all existing archival XMM- Newton and Swift/BAT observations of the obscured HMXB IGR J16320–4751 performing a detailed temporal and spectral analysis of the source along its orbit. Using a typical model for the supergiant wind profile, we simultaneously fitted the evolution of the hard X-ray emission and intrinsic column density along the full orbit of the NS around the SG, which allowed us to constrain physical and geometrical parameters of the binary system.

Keywords

X-ray: individual objects (IGR J16320–4751)stars: supergiantsstars: neutronX-ray: binaries
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S346: High-mass X-ray Binaries: Illuminating the Passage from Massive Binaries to Merging Compact Objects , August 2018 , pp. 212 - 215
Copyright
© International Astronomical Union 2019 

References

Arnaud, K. A. 1996, ASP Conf. Ser. 101, 101, 17 Google Scholar
Castor, J. I., Abbott, D. C., & Klein, R. I. 1975, ApJ, 195, 157 CrossRefGoogle Scholar
Chaty, S., Rahoui, F., Foellmi, C., et al. 2008, A&A, 484,783CrossRefGoogle Scholar
Chaty, S. 2013, AdSpR, 52, 2132 Google Scholar
Coleiro, A., Chaty, S., Heras, Zurita, et al. 2013, A&A, 560, A108 Google Scholar
Corbet, R. H. D. 1986, MNRAS, 220, 1047 CrossRefGoogle Scholar
Corbet, R., Barbier, L., Barthelmy, S., et al. 2005, ATel, 649Google Scholar
Giménez-Garca, et al. 2015, A&A, 576, A108 Google Scholar
Lutovinov, A., Rodriguez, J., Revnivtsev, M., et al. 2005, A&A, 433, L41 Google Scholar
Martnez-Núñez, S., Kretschmar, P., Bozzo, E., et al. 2017, Space Science Reviews, 212, 59 CrossRefGoogle Scholar
Rodriguez, J., Tomsick, J. A., Foschini, L., et al. 2003, A&A, 407, L41 Google Scholar
Tomsick, J. A., Lingenfelter, R., Walter, R., et al. 2003, IAU Circular, 8076, 1 Google Scholar
Walter, R., Lutovinov, A. A., Bozzo, E., & Tsygankov, S. S. 2015, Astronomy and Astrophysics Review, 23, 2 CrossRefGoogle Scholar
Zurita Heras, J. A., Chaty, S., Prat, L., et al. 2009, AIP, 1126, 313 Google Scholar