New evidence of hard X-ray emission from 4U0515+38

Details New evidence of hard X-ray emission from 4U0515+38 New evidence of hard X-ray emission from 4U0515+38

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...131..229p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 131, no. 2, Feb. 1984, p. 229-231. Research supported by the Consiglio Naziona

Astronomy and Astrophysics

Astronomy

4

Emission Spectra, Stellar Spectra, X Ray Sources, Astronomical Spectroscopy, Balloon-Borne Instruments, Sky Surveys (Astronomy)

Scientific paper

The region of sky containing the unidentified Uhuru source 4U0515+38 was scanned during a deep sky survey performed by means of one-square meter balloon-borne hard X-rays telescope, flown the 21st July 1981. A statistically significant excess, corresponding to about 16σ, was detected and the spectrum was found to be in good agreement with a previous measurement made in 1980 with a similar detector. On the basis of the error boxes from these two flights and the Uhuru satellite, a possible association with the emission line star GG329 is suggested.

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