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

T. Hori, Y. Ueda, C. Done, M. Shidatsu, T. Kawamuro, A. Kubota, S. Nakahira

Research output: Research - peer-reviewArticle

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.

LanguageEnglish
Pages467-472
Number of pages6
JournalAstronomische Nachrichten
Volume337
Issue number4-5
DOIs
StatePublished - 2016 May 1

Fingerprint

broadband
x rays
outburst
iron
hardening
corona
ionization
energetics
ion
comparison
XMM-Newton telescope
newton
coronas
time measurement
continuums
ions

Keywords

  • Accretion, accretion disks
  • Black hole physics
  • X-rays: binaries
  • X-rays: individuals (4U 1630-47)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Hori, T., Ueda, Y., Done, C., Shidatsu, M., Kawamuro, T., Kubota, A., & Nakahira, S. (2016). Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku. Astronomische Nachrichten, 337(4-5), 467-472. DOI: 10.1002/asna.201612331

Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku. / Hori, T.; Ueda, Y.; Done, C.; Shidatsu, M.; Kawamuro, T.; Kubota, A.; Nakahira, S.

In: Astronomische Nachrichten, Vol. 337, No. 4-5, 01.05.2016, p. 467-472.

Research output: Research - peer-reviewArticle

Hori, T, Ueda, Y, Done, C, Shidatsu, M, Kawamuro, T, Kubota, A & Nakahira, S 2016, 'Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku' Astronomische Nachrichten, vol 337, no. 4-5, pp. 467-472. DOI: 10.1002/asna.201612331
Hori T, Ueda Y, Done C, Shidatsu M, Kawamuro T, Kubota A et al. Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku. Astronomische Nachrichten. 2016 May 1;337(4-5):467-472. Available from, DOI: 10.1002/asna.201612331
Hori, T. ; Ueda, Y. ; Done, C. ; Shidatsu, M. ; Kawamuro, T. ; Kubota, A. ; Nakahira, S./ Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku. In: Astronomische Nachrichten. 2016 ; Vol. 337, No. 4-5. pp. 467-472
@article{65e3833b0cf24f71adabae9a53d3bf26,
title = "Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku",
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.",
keywords = "Accretion, accretion disks, Black hole physics, X-rays: binaries, X-rays: individuals (4U 1630-47)",
author = "T. Hori and Y. Ueda and C. Done and M. Shidatsu and T. Kawamuro and A. Kubota and S. Nakahira",
year = "2016",
month = "5",
doi = "10.1002/asna.201612331",
volume = "337",
pages = "467--472",
journal = "Astronomische Nachrichten",
issn = "0004-6337",
publisher = "Wiley-VCH Verlag",
number = "4-5",

}

TY - JOUR

T1 - Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku

AU - Hori,T.

AU - Ueda,Y.

AU - Done,C.

AU - Shidatsu,M.

AU - Kawamuro,T.

AU - Kubota,A.

AU - Nakahira,S.

PY - 2016/5/1

Y1 - 2016/5/1

N2 - 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.

AB - 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.

KW - Accretion, accretion disks

KW - Black hole physics

KW - X-rays: binaries

KW - X-rays: individuals (4U 1630-47)

UR - http://www.scopus.com/inward/record.url?scp=84964780479&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84964780479&partnerID=8YFLogxK

U2 - 10.1002/asna.201612331

DO - 10.1002/asna.201612331

M3 - Article

VL - 337

SP - 467

EP - 472

JO - Astronomische Nachrichten

T2 - Astronomische Nachrichten

JF - Astronomische Nachrichten

SN - 0004-6337

IS - 4-5

ER -