EXOSAT observations of 4U 1705-44 - Type I bursts and persistent emission

Details EXOSAT observations of 4U 1705-44 - Type I bursts and persistent emission EXOSAT observations of 4U 1705-44 - Type I bursts and persistent emission

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...323..288l&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 323, Dec. 1, 1987, p. 288-293.

Astronomy and Astrophysics

Astrophysics

53

Emission Spectra, Milky Way Galaxy, Radiant Flux Density, Satellite Observation, X Ray Binaries, Black Body Radiation, Bursts, Exosat Satellite, Spectrum Analysis

Scientific paper

During four Exosat observations, the bright galactic X-ray source 4U 1705-44 exhibited persistent emission variations from 1.3 to 10.7 x 10 to the -9th ergs/sq cm per sec in the 1-20 keV band. Type I X-ray bursts have been detected from this source whose properties correlate with source intensity. The burst shape changed with increasing intensity from a slow burst profile with a decay time of 100 sec to a feast profile with a decay time of 25 sec. The spectrum during maximum was best-fitted by a two-component model involving a blackbody together with a Boltzmann-Wien law, and an additional iron K emission line.

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