Clear Evidence for Intranight Optical Variability in Radio-quiet Quasars

Details Clear Evidence for Intranight Optical Variability in Radio-quiet Quasars Clear Evidence for Intranight Optical Variability in Radio-quiet Quasars

2003-02-10

arxiv.org/abs/astro-ph/0302188v1

Astrophys.J.586:L25-L28,2003

Astronomy and Astrophysics

Astrophysics

13 pages, 3 figures, in press in ApJ Letters (20 March 2003)

Scientific paper

10.1086/374655

We present new clues to the problem of the radio loudness dichotomy arising from an extensive search for intranight optical variability in seven sets of optically luminous radio-quiet quasars and (radio-loud) BL Lacertae objects, which are matched in optical luminosity and redshift. Our monitoring of radio-quiet quasars has for the first time clearly detected such intranight variability, with peak-to-peak amplitudes ~1%, occurring with a duty cycle of ~ 1/6. The matched BL Lacs have both higher variability amplitudes and duty cycles when observed in the same fashion. We show that the much less pronounced intranight variability of the radio-quiet quasars relative to BL Lacs can be understood in terms of a modest misalignment of the jets in radio-quiet quasars from the line-of-sight. We thus infer that relativistic particle jets may well also emerge from radio-quiet quasars, but while traversing the short optical-emitting distances, they could be snuffed out, possibly through inverse Compton losses in the nuclear region.

Affiliated with

Also associated with

No associations

Rating

Clear Evidence for Intranight Optical Variability in Radio-quiet Quasars 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 Clear Evidence for Intranight Optical Variability in Radio-quiet Quasars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clear Evidence for Intranight Optical Variability in Radio-quiet Quasars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-409691