Published December 1, 1997
| Published
Journal Article
Open
The TeV Gamma-Ray Spectrum of Markarian 421 During an Intense Flare
- Creators
- Zweerink, J.
- Akerlof, C. W.
- Biller, S. D.
- Boyle, P.
- Buckley, J. H.
- Burdett, A.
- Bussons Gordo, J.
- Carter-Lewis, D. A.
- Catanese, M.
- Cawley, M. F.
- Fegan, D. J.
- Finley, John P.
- Gaidos, J. A.
- Hillas, A. M.
- Krennrich, F.
- Lamb, R. C.
- Lessard, R. W.
- McEnery, J. E.
- Mohanty, G.
- Quinn, J.
- Rodgers, A. J.
- Rose, H. J.
- Samuelson, F. W.
- Schubnell, S.
- Sembroski, G.
- Srinivasan, R.
- Weekes, T. C.
- Wilson, C.
Abstract
We present the gamma-ray spectrum of the BL Lacertae object, Markarian 421, above 500 GeV during its most intense recorded TeV flare, on 1996 May 7. The spectrum is well fitted by a power law with an exponent of 22.5650.0750.1 (statistical and systematic errors). The spectrum extends above 5 TeV with no evidence for a cutoff, favoring determinations of the extragalactic infrared energy density that do not produce a sharp cutoff at these energies.
Additional Information
© 1997. The American Astronomical Society. Received 1997 July 30, accepted for publication 1997 September 29. Published 1997 October 30. We acknowledge the technical assistance of K. Harris. This research is supported by grants from the US Department of Energy and by NASA, PPARC in the UK, and Forbairt in Ireland.Attached Files
Published - 1997-56.pdf
Files
1997-56.pdf
Files
(123.0 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:82222dadcd3881699e366678e5034780
|
123.0 kB | Preview Download |
Additional details
- Eprint ID
- 52357
- Resolver ID
- CaltechAUTHORS:20141203-154742327
- United States Department of Energy
- NASA
- Created
-
2014-12-05Created from EPrint's datestamp field
- Updated
-
2019-10-03Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 1997-56