English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

The Anomalous Early Afterglow of GRB 050801

MPS-Authors
/persons/resource/persons30244

Aharonian,  F.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30623

Horns,  Dieter
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30959

Rowell,  Gavin
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Rykoff, E., Aharonian, F., Akerlof, C. W., Mangano, V., Ashley, M. C. B., Güver, T., et al. (2006). The Anomalous Early Afterglow of GRB 050801. The Astrophysical Journal, 638(1, part 2), L5-L8. Retrieved from http://www.journals.uchicago.edu/ApJ/journal/issues/ApJL/v638n1/20166/brief/20166.abstract.html.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-80A8-8
Abstract
The ROTSE-IIIc telescope at the HESS site, Namibia, obtained the earliest detection of optical emission from a gamma-ray burst (GRB), beginning only 21.8 s from the onset of Swift GRB 050801. The optical light curve does not fade or brighten significantly over the first 250 s, after which there is an achromatic break and the light curve declines in typical power-law fashion. The Swift XRT also obtained early observations starting at 69 s after the burst onset. The X-ray light curve shows the same features as the optical light curve. These correlated variations in the early optical and X-ray emission imply a common origin in space and time. This behavior is difficult to reconcile with the standard models of early afterglow emission.