出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要: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 T 4
in 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.