Suzaku observations of two ultraluminous X-ray sources in the nearby spiral galaxy IC 342

Tessei Yoshida, Naoki Isobe, Shin Mineshige, Aya Kubota, Tsunefumi Mizuno, Kazuo Makishima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report a result of our Suzaku observations for two ultraluminous X-ray sources (ULX; X-1 and X-2) in IC 342 on 2010 August and 2011 March. We found a hint of hard X-ray photons (14-20 keV), and fitted the XIS and the PIN spectra simultaneously. As a result, the joint spectra can be explained by the power-law model for X-1 and the multi-color disk model for X-2. We briefly discuss the spectral states of the two ULXs comparing with those of Galactic black hole binaries.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages318-319
Number of pages2
Volume1427
DOIs
Publication statusPublished - 2012
EventSuzaku 2011: Exploring the X-Ray Universe: Suzaku and Beyond - Palo Alto, CA
Duration: 2011 Jul 202011 Jul 22

Other

OtherSuzaku 2011: Exploring the X-Ray Universe: Suzaku and Beyond
CityPalo Alto, CA
Period11/7/2011/7/22

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Keywords

  • accretion, accretion disks
  • black hole physics
  • galaxies: individual (IC 342)
  • X-rays: binaries

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Yoshida, T., Isobe, N., Mineshige, S., Kubota, A., Mizuno, T., & Makishima, K. (2012). Suzaku observations of two ultraluminous X-ray sources in the nearby spiral galaxy IC 342. In AIP Conference Proceedings (Vol. 1427, pp. 318-319) https://doi.org/10.1063/1.3696222