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RXTE spectra of the Galactic microquasar GRO J1655-40 during the 2005 outburst

Koji Saito·Jeroen Homan·Kazutaka Yamaoka·Mizuki Fukuyama·Takehiro G. Miyakawa·Atsumasa Yoshida
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Abstract

We report on the results of a detailed spectral analysis of 389 RXTE observations of the Galactic microquasar GRO J1655-40, performed during its 2005 outburst. The maximum luminosity reached during this outburst was 1.4 times higher than in the previous (1996-1997) outburst. However, the spectral behavior during the two outbursts was very similar. In particular, Ldisk was proportional to Tin^4 up to the same critical luminosity and in both outbursts there were periods during which the energy spectra were very soft, but could not be fit with standard disk models.

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Koji Saito, Jeroen Homan, Kazutaka Yamaoka, Mizuki Fukuyama, Takehiro G. Miyakawa, Atsumasa Yoshida. 2007-02-01. RXTE spectra of the Galactic microquasar GRO J1655-40 during the 2005 outburst. https://arxiv.org/abs/astro-ph/0702022

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