GRB030226: Testing the Dust Destruction Hypothesis

Details GRB030226: Testing the Dust Destruction Hypothesis GRB030226: Testing the Dust Destruction Hypothesis

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1357p&link_type=abstract

Chandra Proposal ID #04508140

Physics

Chandra Proposal Id #04508140

Scientific paper

GRB030226 was discovered by HETE-2 and an optical transient identified 2.6h later. The redshift has now been measured to z=1.99 placing it in an ideal redshift window for combined X-ray and lyman alpha studies: It is close enough for X-ray absorption in the vicinity of the burst to be measurable in the CXO spectrum and far enough that lyman alpha can be reached from the ground. Combining the two measurements with optical/NIR observations we can accurately determine the amount of oxygen and iron (dominating the X-ray absorption), the amount of neutral hydrogen, and the dust content in the GRB environment. For this burst, we can thus tell if the low dust content, found in most burst environments, is due to either a) low metallicity and a universal dust-to-metals ratio, or b) solar metallicity, but a low dust-to-metal ratio. In case b) most of the metals are in the gas phase - indicating significant dust destruction.

Affiliated with

Also associated with

No associations

Rating

GRB030226: Testing the Dust Destruction Hypothesis 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 GRB030226: Testing the Dust Destruction Hypothesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GRB030226: Testing the Dust Destruction Hypothesis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1042887