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Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku

Hori, T. and Ueda, Y. and Done, C. and Shidatsu, M. and Kawamuro, T. and Kubota, A. and Nakahira, S. (2016) Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku. Astronomische Nachrichten, 337 (4-5). pp. 467-472. ISSN 00046337. http://resolver.caltech.edu/CaltechAUTHORS:20160527-105327275

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Abstract

We present the results from our Suzaku observations of the Galactic black hole binary 4U 1630-47. 4U 1630-47 was observed in the very high state (VHS) during the 2012 September-October outburst. The inner disk appears slightly truncated by comparison with a previous high/soft state (HSS) of this source, even by taking into account energetic coupling between the disk and corona. The spectra do not show the Doppler-shifted emission lines indicating baryonic jets that were seen four days previously in an XMM-Newton observation, despite the source being in a similar state. There are no significant absorption lines from highly ionized iron ions. We also observed 4U 1630-47 in the HSS simultaneously with Suzaku and NuSTAR in an early epoch of the 2015 outburst. All Suzaku spectra in the HSS show variable iron-K absorption line features. We find that the ionization state of the disk wind rapidly increased when the continuum showed significant spectral hardening. This behavior is consistent with that expected from a thermally driven wind.


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http://dx.doi.org/10.1002/asna.201612331DOIArticle
http://onlinelibrary.wiley.com/doi/10.1002/asna.201612331/abstractPublisherArticle
Additional Information:© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Group:NuSTAR
Record Number:CaltechAUTHORS:20160527-105327275
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20160527-105327275
Official Citation:Hori, T., Ueda, Y., Done, C., Shidatsu, M., Kawamuro, T., Kubota, A. and Nakahira, S. (2016), Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku. Astron. Nachr., 337: 467–472. doi: 10.1002/asna.201612331
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67445
Collection:CaltechAUTHORS
Deposited By: Joy Painter
Deposited On:27 May 2016 19:12
Last Modified:27 May 2016 19:12

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