An off-axis model of GRB 031203

Enrico Ramirez-Ruiz, Jonathan Granot, Chryssa Kouveliotou, S. E. Woosley, Sandy K. Patel, Paolo A. Mazzali

פרסום מחקרי: פרסום בכתב עתסקירהביקורת עמיתים


The low-luminosity radio emission of the unusually faint GRB 031203 has been argued to support the idea of a class of intrinsically subenergetic gamma-ray bursts (GRBs), currently comprising two members. While low-energy GRBs probably exist, we show that the collective prompt and multiwavelength observations of the afterglow of GRB 031203 do not necessarily require a subenergetic nature for that event. In fact, the data are more consistent with a typical, powerful GRB seen at an angle of about twice the opening angle of the central jet. The intrinsic peak energy Ep of GRB 031203 then becomes ∼2 MeV, similar to that of many other GRBs.

שפה מקוריתאנגלית
עמודים (מ-עד)L91-L94
כתב עתAstrophysical Journal
מספר גיליון2 II
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 1 יוני 2005
פורסם באופן חיצוניכן

הערה ביבליוגרפית

Funding Information:
This work is supported by IAS and NASA through Chandra Fellowship award PF3-40028 (E. R.-R.) and by the DoE under contract DE-AC03-76SF00515 (J. G.). The authors acknowledge benefits from collaboration within the RTN “GRBs: An Enigma and a Tool.” At UCSC, this research was supported by the NSF (AST 02-06111) and NASA (NAG5-12036).

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