Balloon observations of hard X-rays from NGC 4151 and an X-ray transient source

Details Balloon observations of hard X-rays from NGC 4151 and an X-ray transient source Balloon observations of hard X-rays from NGC 4151 and an X-ray transient source

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icrc....1..272k&link_type=abstract

In NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 1 p 272 (SEE N85-33902 22-93)

Astronomy and Astrophysics

Astronomy

Cosmic X Rays, Seyfert Galaxies, X Ray Sources, Balloons, Flux (Rate), Radio Sources (Astronomy), X Ray Telescopes

Scientific paper

An X-ray telescope consisting of 400 sq cm phoswich detectors (NaI(Tl)/CsI(Na)) was flown from Hyderabad (India) on 31 October 1980; the field of view was 11 deg x 1 deg FWHM. During a five hour observation at 5 millibars two X-ray sources were seen: (1) the variable Seyfert Galaxy NGC 4151; and (2) a transident of approximately 8 minutes duration in the vicinity of the variable source 4U1444 43 which may be associated with the galaxy NGC 5608. X-ray fluxes and spectra in 18-120 keV X-rays are presented.

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