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SPECIAL TOPICS

Gamma-ray Bursts

Published: June 2009
 

The baseline time span for this database is (publication years) 1999-February 28, 2009 from the first bimonthly update (a 10-year + 2-month period). The resulting database contained 4,241 (10 years) and 1,086 (2 years) papers; 8,023 authors; 76 nations; 163 journals; and 1,690 institutions. See additional paper information below in the overview & methodology sections.

Top 20 Papers

  10-year period
  2-year period

Top 20 Overall

  Authors
  Institutions
  Journals
  Nations

Research Front Map

  Map title: GAMMA-RAY BURSTS

Time Series

  1- & 5-year periods

Field Distribution

Interviews

  Interviews, first-person essays, and profiles about people in a wide variety of fields which pertain to this special topic of Gamma-ray Bursts.
   

OVERVIEW

Gamma-ray bursts (GRBs), the most energetic form of light in the universe, were discovered by chance in the 1960s, and were still mostly a mystery even in the 1990s. These phenomena are of great interest to astrophysicists, cosmologists, and the like because they are a potential window into the earliest days of the universe.

This month, ScienceWatch.com examines the literature on GRBs over the past decade and over the past two years. The analysis was constructed using a keyword search for "gamma ray burst*" or gamma-ray burst*" in the titles, abstracts, and keywords sections of original articles, reviews, and proceedings papers. In constructing the list of the top 20 papers over the past decade and over the past two years, we further limited the search to papers with "gamma" or "GRB*"in the titles in order to obtain a more on-point list of papers.

The papers from the earlier part of the decade center on theories about various aspects and implications of GRBs, including the fireball model, originally put forth by Martin Rees and Peter Mészáros, and the collapsar model of Andrew MacFadyen and Stanford Woosley. Though other satellites were able to collect data on GRBs, it was the Swift Mission and its reports beginning in 2004 that brought a torrent of data on specific properties of GRBs, such as afterglows, spectra, energetics, jets, beaming, and energy reservoirs. Other topics, such as the BATSE GRB spectral catalogue and the wind model of GRB progenitors, are also addressed.

Over the past two years, information on specific GRBs has been published—11 papers on the two-year list deal with various named GRBs and their properties. Long- vs. short-duration GRBs, local environments in the interstellar media, a repository of Swift/XRT GRB light curves, and the proposal to extend the Hubble diagram to include higher redshifts are also discussed..

Methodology: The baseline time span for this database is (publication years) 1999-February 28, 2009 from the first bimonthly update (a 10-year + 2-month period). The resulting database contained 4,241 (10 years) and 1,086 (2 years) papers; 8,023 authors; 76 nations; 163 journals; and 1,690 institutions. See additional paper information below in the overview & methodology sections.

Papers: To construct the top 20 papers lists for the past decade and the past two years, the papers were further narrowed down by the title keywords "GAMMA" and "GRB." This adjustment resulted in the top 20 papers being selected from a pool of 2,658 (10 years) and 629 (2 years) papers.

Rankings: Once the database was in place, it was used to generate list of authors, journals, institutions, and nations. Rankings for author, journal, institution, and country are listed in three ways: according to total cites, total papers, and total cites/paper. The paper thresholds and corresponding percentages used to determine scientist, institution, country, and journal rankings according to total cites/paper, and total papers respectively are as follows:

Entity Authors Institutions Nations Journals
Thresholds 59 11 18 3
Percentage: 1% 10% 50% 50%

 Gamma-Ray Bursts

This image was used in the special topic of Gamma-Ray Bursts (Jun 2009). This image was obtained from the Wikimedia Commons.



          



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