Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976mnras.176..397c&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 176, Aug. 1976, p. 397-408.
Astronomy and Astrophysics
Astronomy
8
Light Curve, Novae, Satellite Observation, X Ray Sources, X Ray Spectra, Ariel Satellites, Radiant Flux Density, Shot Noise, Transient Response, X Ray Density Measurement
Scientific paper
The paper reports observations of the transient X-ray source A 0620-00 which were obtained with the rotation modulation collimator on Ariel V over 40 days between August and October 1975. The position is determined as right ascension 6 hr 20 min 16.56 sec and declination -0 deg 20 min 24 sec within an error box measuring 1.6 by 2.1 arcmin. A light curve and a composite spectrum in the range from 3.0 to 7.6 keV are presented. No evidence is found for periodic modulation of the source or for shot-noise variability. It is noted that flaring associated with spectral hardening was observed shortly after maximum light and that the source intensity decayed by a factor of three during the observational period. The source is identified with the recurrent optical nova 1975 Nova Monocerotis.
Carpenter G. F.
Eyles Chris J.
Skinner Gerald K.
Willmore A. P.
Wilson Margaret A.
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