Variability of QSO 0241+622 in the near infrared

Details Variability of QSO 0241+622 in the near infrared Variability of QSO 0241+622 in the near infrared

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...197...59l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 197, no. 1-2, May 1988, p. 59-62. Research supported by the Ministero della Pu

Astronomy and Astrophysics

Astronomy

2

Astronomical Photometry, Disk Galaxies, Infrared Astronomy, Near Infrared Radiation, Quasars, Synchrotron Radiation, Infrared Astronomy Satellite, Radio Frequencies, Very Long Base Interferometry, X Ray Sources

Scientific paper

The nearby quasar 0241+622 was observed at 15 epochs between 1984 October and 1986 December in the J, H, K and Larcmin photometric bands and with a 20arcsec aperture. In the J band the emission remained constant, while in the H and K bands it showed significant changes on time intervals of the order of one month. Assuming that the J band flux is mostly due to the host galaxy, and combining the present data with those obtained earlier by Soifer et al. (1979), it is concluded that the frequency spectral slope αHK(Fν≡ν-α) of the variable component undergoes very large variations, and increases from 1.9 to at least 8 as the flux decreases. This behaviour is tentatively explained as resulting from the nearly exponential tail of a synchrotron spectrum of electrons with a sharp and variable high energy cut-off.

Affiliated with

Also associated with

No associations

Rating

Variability of QSO 0241+622 in the near infrared 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 Variability of QSO 0241+622 in the near infrared, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variability of QSO 0241+622 in the near infrared will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-853611