Null-induced mode changes in PSR B0809+74

Details Null-induced mode changes in PSR B0809+74 Null-induced mode changes in PSR B0809+74

2002-02-26

arxiv.org/abs/astro-ph/0202477v2

A&A 387, 169-178 (2002)

Astronomy and Astrophysics

Astrophysics

10 pages, 10 low-res figures, published in Astronomy & Astrophysics. High-res versions available at http://www.astro.uu.nl/~

Scientific paper

10.1051/0004-6361:20020254

We have found that there are two distinct emission modes in PSR B0809+74. Beside its normal and most common mode, the pulsar emits in a significantly different quasi-stable mode after most or possibly all nulls, occasionally for over 100 pulses. In this mode the pulsar is brighter, the subpulse separation is less, the subpulses drift more slowly and the pulse window is shifted towards earlier longitudes. We can now account for several previously unexplained phenomena associated with the nulling-drifting interaction: the unexpected brightness of the first active pulse and the low post-null driftrate. We put forward a new interpretation of the subpulse-position jump over the null, indicating that the speedup time scale of the post-null drifting is much shorter than previously thought. The speedup time scale we find is no longer discrepant with the time scales found for the subpulse-drift slowdown and the emission decay around the null.

Affiliated with

Also associated with

No associations

Rating

Null-induced mode changes in PSR B0809+74 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 Null-induced mode changes in PSR B0809+74, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Null-induced mode changes in PSR B0809+74 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-668312