2001/05/18 by J. Rodriguez, J. Rodríguez, P. Durouchoux +4
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Astrophysical Phenomena and Observations #Astrophysics (astro-ph) #FOS: Physical sciences #Gamma-ray bursts and supernovae #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0105329
5 pages, 5 figures, to appear in "Gamma-Ray Astrophysics", AIP Conference Proceedings of the Gamma 2001 Symposium Baltimore MD, April 2001; N. Gehrels, C. Shrader, and S. Ritz, eds
arxiv created 2001/05/18 · openalex publication_date 2001/05/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We analyse a set of three RXTE Target of Opportunity observations of the Galactic microquasar GRS 1915+105, observed in April 2000. We concentrate on the timing properties of the source, and examine the properties of a low frequency QPO, with its harmonic, in several energy ranges. The source was found in two different states of the spectro/temporal classification of Belloni et al. (2000), and exhibited in the three observations a strong, low frequency QPO together with a strong harmonic. We discuss the properties of the QPO, of its harmonic and of their spectral behaviour in the framework of the Accretion Ejection Instability (AEI) (Tagger & Pellat, 1999; Varnière, Rodriguez & Tagger, 2001; Rodriguez et al., 2001).