Search for Neutron-Capture Gamma-Ray Lines from A0535+26 in Outburst

Details Search for Neutron-Capture Gamma-Ray Lines from A0535+26 in Outburst Search for Neutron-Capture Gamma-Ray Lines from A0535+26 in Outburst

Feb 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006apj...637l.121b&link_type=abstract

The Astrophysical Journal, Volume 637, Issue 2, pp. L121-L124.

Astronomy and Astrophysics

Astronomy

2

Nuclear Reactions, Nucleosynthesis, Abundances, Stars: Individual: Alphanumeric: A0535+26, Stars: Neutron, X-Rays: Binaries

Scientific paper

In 2005 May-June, the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) observed the Be/X-ray binary system A0535+26 during a giant outburst, during which time its hard X-ray intensity reached several crab. This bright source presented a unique opportunity to search for redshifted neutron-capture lines from the surface of the neutron star. Such lines, if discovered, would strongly constrain the neutron star equation of state, motivating this search. An upper limit on the narrow, unredshifted line has been set at 6.5×10-4 photons cm-2 s-1, while width-dependent limits on a broadened, redshifted line are set in the range of (4.0-10.5)×10-4 photons cm-2 s-1. To our knowledge, these are the first measured upper limits on redshifted 2.2 MeV emission from an accreting neutron star.

Affiliated with

Also associated with

No associations

Rating

Search for Neutron-Capture Gamma-Ray Lines from A0535+26 in Outburst 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 Search for Neutron-Capture Gamma-Ray Lines from A0535+26 in Outburst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for Neutron-Capture Gamma-Ray Lines from A0535+26 in Outburst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1766624