CCD monitoring of the X-ray variable quasar OX 169

Bibcode
1989ApJ...336L...9K
DOI
10.1086/185349
Kidger, Mark R.
Bibliographical reference

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 336, Jan. 1, 1989, p. L9-L11.

Advertised on:
1
1989
Journal
Astrophysical Journal
Number of authors
1
IAC number of authors
1
Citations
2
Refereed citations
2
Description
Three nights of broadband filter monitoring of the OX 169 variable X-ray quasar using a GEC-type CCD have yielded a 0.005 mag rms precision in the R band. Rapid variation is noted in both B and R on 10-15 min (and greater) time scales; these are, however, of considerably lower amplitude than the observed X-ray variability reported by Tananbaum et al. (1979). Good agreement with Tananbaum is noted in the case of the mass of the singularity that is inferred from the time scale of the variability.
Type
Refereed
Quasars

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