Observations of a transient X-ray source with regular periodicity of 6.75 min
Abstract
DURING planned observations, by the satellite Ariel V, of the X-ray source Cen X-3 (3U1118-60), a previously unreported source nearby was detected by the collimated proportional counter of 100 cm2 provided by the Mullard Space Science Laboratory. The source was monitored over a period of 39 d between December 19, 1974, and January 27, 1975. Here we report measurements of the light curve, spectrum and of a regular variability with period of 6.755 +/- 0.010 min. The position of the source is given in the accompanying letter1.
- Publication:
-
Nature
- Pub Date:
- April 1975
- DOI:
- 10.1038/254578a0
- Bibcode:
- 1975Natur.254..578I
- Keywords:
-
- Light Curve;
- Periodic Variations;
- Satellite Observation;
- X Ray Sources;
- X Ray Spectra;
- Ariel Satellites;
- Binary Stars;
- Spaceborne Astronomy;
- Variable Stars;
- Astronomy