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Afterglow Population Studies from Swift Follow-Up Observations of Fermi LAT GRBsThe small population of Fermi LAT detected GRBs discovered over the last year has been providing interesting and unexpected clues into GRB prompt and afterglow emission mechanisms. Over the last 5 years, it has been Swift that has provided the robust data set of UV/optical and X-ray afterglow observations that opened many windows into other components of GRB emission structure. We explore the new ability to utilize both of these observatories to study the same GRBs over 10 orders of magnitude in energy, although not always concurrently. Almost all LAT GRBs that have been followed-up by Swift within 1-day have been clearly detected and carefully observed. We will present the context of the lower-energy afterglows of this special subset of GRBs that has > 100 MeV emission compared to the hundreds in the Swift database that may or may not have been observed by LAT, and theorize upon the relationship between these properties and the origin of the high energy gamma-ray emission.
Document ID
20100019267
Document Type
Conference Paper
Authors
Racusin, Judith L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Oates, S. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
McEnery, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Vasileiou, V. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Troja, E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gehrels, N. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
April 19, 2010
Subject Category
Astronomy
Meeting Information
Deciphering the Ancient Universe with Gamma-ray Bursts(Kyoto)
Distribution Limits
Public
Copyright
Other