HEAD 2000, November 2000
Session 25. X-Ray Binaries - Spectroscopy
Display, Wednesday, November 8, 2000, 8:00am-6:00pm, Bora Bora Ballroom

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[25.06] Optical/X--ray Observations of the Hard X--ray Source 4U1954+319

M. Orlandini, N. Masetti, E. Palazzi, D. Dal Fiume (TeSRE/CNR), S. Del Sordo, A. Santangelo (IFCAI/CNR), A.N. Parmar (ESA/SSD)

We report on a 50 ksec observation of the hard X--ray source 4U1954+319 perfomed by BeppoSAX. The 0.2--100 keV spectrum is fit by a thermal bremsstrahlung or a power law modified by a high energy cutoff. A soft excess is present below 3 keV. We did not find evidence of pulsation during the observation. The analysis of spectro-photometric observations performed at the ING Telescopes in La Palma is also presented.

The author(s) of this abstract have provided an email address for comments about the abstract: orlandini@tesre.bo.cnr.it

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