Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-09-14
Astrophys.J. 617 (2004) L53-L56
Astronomy and Astrophysics
Astrophysics
11 pages, 1 figure, accepted for publication in ApJL; minor wording changes, added observation program IDs, improved figure re
Scientific paper
10.1086/426963
We present the results of a near-infrared monitoring program of the Anomalous X-ray Pulsar 1E 2259+586, performed at the Gemini Observatory. This program began three days after the pulsar's 2002 June outburst, and spans ~1.5 years. We find that after an initial increase associated with the outburst, the near-infrared flux decreased continually and reached the pre-burst quiescent level after about one year. We compare both the near-infrared flux enhancement and its decay to those of the X-ray afterglow, and find them to be remarkably consistent. Fitting simple power laws to the RXTE pulsed flux and near-infrared data for t>1 day post-burst, we find the following decay indices: alpha=-0.21+/-0.01 (X-ray), alpha=-0.21+/-0.02 (near-infrared), where flux is a function of time such that F is proportional to t^alpha. This suggests that the enhanced infrared and X-ray fluxes have a physical link post-outburst, most likely from the neutron-star magnetosphere.
Durant Martin
Kaspi Victoria M.
Tam Cindy R.
van Kerkwijk Marten Henric
No associations
LandOfFree
Correlated Infrared and X-ray Flux Changes Following the 2002 June Outburst of the Anomalous X-ray Pulsar 1E 2259+586 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 Correlated Infrared and X-ray Flux Changes Following the 2002 June Outburst of the Anomalous X-ray Pulsar 1E 2259+586, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlated Infrared and X-ray Flux Changes Following the 2002 June Outburst of the Anomalous X-ray Pulsar 1E 2259+586 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-620685