Multiwavelength observations of 26W20, a radio galaxy which displays BL Lac characteristics

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

To be published in 'Astronomy and Astrophysics' as a research note. 6 pages of LaTex including 7 postscript figures. Uses aa.c

Scientific paper

26W20, a radio galaxy located at a projected distance of 2.2 Mpc from the center of Abell 754 (z=0.054) exhibits core emission properties similar to those of a BL Lac object. New radio observations and VLA archival data show parsec scale features in the core (L_{r} approx.10^{41}) ergs/s with a flat spectrum. From observations with ROSAT, we demonstrate that the X-ray core emission (L_{x}=3X10^{43}) ergs/s is non-thermal and variable. An 18% increase in the X-ray luminosity was observed in two observations separated by five days. The optical morphology is that of a large, normal elliptical galaxy (m_{v}=15.6) and the optical spectrum lacks strong emission lines. If the innermost segment of the radio jet is close to our line of sight, Doppler boosting could explain both the observed X-ray intensity and the absence of emitting line regions.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Multiwavelength observations of 26W20, a radio galaxy which displays BL Lac characteristics 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 Multiwavelength observations of 26W20, a radio galaxy which displays BL Lac characteristics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiwavelength observations of 26W20, a radio galaxy which displays BL Lac characteristics will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-130304

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.