Erratum: A Search for Nontriggered Gamma-Ray Bursts in the BATSE Database

Details Erratum: A Search for Nontriggered Gamma-Ray Bursts in the BATSE Database Erratum: A Search for Nontriggered Gamma-Ray Bursts in the BATSE Database

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999apj...511..514k&link_type=abstract

The Astrophysical Journal, Volume 511, Issue 1, pp. 514-514.

Astronomy and Astrophysics

Astrophysics

3

Scientific paper

In the paper ``A Search for Nontriggered Gamma-Ray Bursts in the BATSE Database'' by Jefferson M. Kommers et al. (ApJ, 491, 704 [1997]), the values of that include on-board-triggered bursts are incorrect. Owing to a programming error, whenever a value of C_min was available for a burst listed in the 4B catalog, that catalog value (appropriate for the on-board burst trigger) overwrote the value appropriate for our more sensitive off-line search. Thus the values of V/V_max were overestimated by a factor of ~2^3/2 for the bursts that were triggered on board. This error does not affect the values of C_max/C_min and C_min for the nontriggered gamma-ray bursts (GRBs) listed in Table 3, nor does it affect the value of =0.28+/-0.03 computed for the nontriggered (only) GRB sample. The correct value of for the on-board-triggered bursts detected by our off-line search is =0.13+/-0.02. For the combined nontriggered GRB candidates and on-board-triggered bursts, =0.18+/-0.02. This value is significantly lower than the value =0.33+/-0.01 obtained from the 3B catalog. These corrections, therefore, significantly strengthen the conclusion of the paper: that the BATSE on-board trigger has not missed a significant population of faint gamma-ray bursts owing to the biases inherent in the on-board burst trigger mechanism.

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