EXOSAT observations of the BL Lac object MKN 421

Details EXOSAT observations of the BL Lac object MKN 421 EXOSAT observations of the BL Lac object MKN 421

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ssrv...40..597w&link_type=abstract

(ESA, ESLAB Symposium on X-Ray Astronomy in the EXOSAT Era, 18th, The Hague, Netherlands, Nov. 5-9, 1984) Space Science Reviews

Astronomy and Astrophysics

Astronomy

3

Astronomical Spectroscopy, Bl Lacertae Objects, Particle Flux Density, Periodic Variations, Spaceborne Astronomy, X Ray Spectra, Compton Effect, Continuous Spectra, Exosat Satellite, Synchrotron Radiation

Scientific paper

The BL Lac object Mkn 421 was observed by Exosat four times over a period of six days in February 1984. Significant X-ray variability was apparent on a timescale of less than a day, but with no accompanying spectral change. The source exhibited a very soft power law X-ray spectrum with an extremely low intrinsic column density N(H) approximately equal to or smaller than 10 to the 20th/cu cm. There was no evidence for an additional hard component attributable to synchrotron self-Compton emission. The observations, when combined with other published data, imply that significant changes occur in the form of the broad-band UV/X-ray continuum of this source.

Affiliated with

Also associated with

No associations

Rating

EXOSAT observations of the BL Lac object MKN 421 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with EXOSAT observations of the BL Lac object MKN 421, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and EXOSAT observations of the BL Lac object MKN 421 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1290955