2008/06/02 by E. Nespoli, J. Fabregat, R. E. Mennickent
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Characterization (materials science) #Class (philosophy) #Gamma-ray bursts and supernovae #Identification (biology) #Infrared #Spectral analysis #Spectroscopy #Stellar classification #Supergiant #astro-ph
paper · pdf · doi:10.1051/0004-6361:200809645
8 pages, 6 figures, 3 tables, accepted for publication in Astronomy & Astrophysics
arxiv created 2008/06/02 · openalex publication_date 2008/06/04 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Context. The International Gamma-Ray Astrophyiscs Laboratory (INTEGRAL) is discovering a large number of new hard X-ray sources, many of them being HMXBs. The identification and spectral characterization of their optical/infrared counterparts is a necessary step to undertake detailed study of these systems. In particular, the determination of the spectral type is crucial in the case of the new class of Supergiant Fast X-ray Transients (SFXTs), which show X-ray properties common to other objects.