Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1619v&link_type=abstract
Chandra Proposal ID #05508169
Astronomy and Astrophysics
Astronomy
Chandra Proposal Id #05508169
Scientific paper
RXJ0720-3125 is a protypical isolated neutron star with a blackbody-like spectrum. However, we've recently found with XMM-Newton's RGS that between 5-2000 and 10-2003 its spectrum has changed. Until 5-2003 this change was slow, but since then the changes have been dramatic, and the spectrum is now quite distinct from a BB; it has increased its emission > 0.5 keV & decreased it < 0.5 keV (de Vries et al. 2004, astro-ph/0401028). We would like to observe this source with the LETGS in order to see whether the hardening has continued, is slowly reversing, or whether it is back to its BB-like state. Moreover, if the source is still in a hard state we need the LETGS so check whether the absorption < 0.5 keV is Gaussian, in which case it might be due to proton-cyclotron absorption. NB the deviations from a BB may relevant to the whole class of isolated NSs, as all of them may have similar but less obvious deviations from a BB spectrum.
No associations
LandOfFree
Monitoring the spectral evolution of RXJ0720-3125 and determining its nature. 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 Monitoring the spectral evolution of RXJ0720-3125 and determining its nature., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monitoring the spectral evolution of RXJ0720-3125 and determining its nature. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1152428