Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2011-09-20
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
Proceeding of the Cosmic Rays and the Interstellar Medium (CRISM-2011) conference, Montpellier, France, June 26-July 1. To be
Scientific paper
PSR J0855-4644 is an energetic pulsar (Edot = 1.1x10^36 erg/s, P=65 ms) discovered near the South-East rim of the supernova remnant (SNR) RX J0852.0-4622 (aka Vela Jr) by the Parkes Multibeam Survey. The position of the pulsar is in spatial coincidence with an enhancement in X-rays and TeV gamma-rays, which could represent its pulsar wind nebula (PWN). We have revealed with an XMM-Newton observation the X-ray counterpart of the pulsar together with a surrounding extended emission thus confirming the suggestion of a PWN. The comparison of the absorption column density derived in X-rays from the pulsar with 12CO observations (tracing the dense gas) is used to derive an upper limit to the distance of the pulsar (d< 900 pc) and to discuss a possible association of the pulsar with the Vela Jr SNR. This new distance estimate implies that the pulsar is nearby and could therefore significantly contribute to the observed spectrum of cosmic-ray leptons (e-/e+).
Acero Fabio
Ballet Jean
Gallant Yves
Renaud Matthieu
Terrier Régis
No associations
LandOfFree
A new nearby PWN overlapping the Vela Jr SNR 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 A new nearby PWN overlapping the Vela Jr SNR, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new nearby PWN overlapping the Vela Jr SNR will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-255839