On the Rates of Gamma-Ray Bursts and Type Ib/c Supernovae

By D. Guetta, M. Della Valle. 2006

200 citations recorded by the source corpus.

We measure the local rates of "low-luminosity" gamma-ray bursts (LL GRBs; i.e., L ≲ 1049 ergs s-1) and "high-luminosity" gamma-ray bursts (HL GRBs). The values are in the range 0 = 100-1800 Gpc-3 yr-1 and 0 = 100-550 Gpc-3 yr-1, respectively, and their ratios to Type Ibc supernovae (SNe Ibc) are ~1%-9% and 0.4%-3%, respectively. These data may suggest the existence of two physically distinct classes of GRBs in which LL GRBs are (intrinsically) more frequent events than HL GRBs. However, with the present data, we cannot exclude the possibility of a single population of GRBs that gives rise to both an isotropic low-luminous emission (LL GRBs: detectable only in nearby GRBs) and to a highly collimated high luminous emission (HL GRBs: detectable preferentially at high z). We also compute the rate of SNe Ibc characterized by broad-lined spectra (hypernovae [HNe]) and find it to be about 1.5 × 10-4 yr-1 per 1010 LB, ☉ (i.e., less than 10% of SNe Ibc occurring in spiral galaxies). This result implies that the ratio of HL GRBs to HNe is smaller than 1, possibly in the range of 0.04-0.3. We have used the ratio between HNe and LL GRBs to constrain their beaming factor to f ~ 10 or less.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/750793f18c43ede653fe718279768e8ea5d9cc85

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. E. Berger
2. Bing Zhang
3. B. Metzger
4. D. Frail
5. Joshua S. Bloom
6. Shrinivas R. Kulkarni
7. A. Filippenko
8. D. Fox

Citations in the corpus

• Open Questions in Cosmic-Ray Research at Ultrahigh Energies (2019, unknown): “For hypernovae we quote 10 % of the kinetic energy estimate of Murase and Fukugita (2018) and the burst rate of Guetta and Della Valle (2007).”
• AFTERGLOW OBSERVATIONS OF FERMI LARGE AREA TELESCOPE GAMMA-RAY BURSTS AND THE EMERGING CLASS OF HYPER-ENERGETIC EVENTS (2010, background): “…GRBs suggests they are many times more common (per unit volume) than the typical cosmological GRBs (Soderberg et al. 2006; Cobb et al. 2006; Guetta & Valle 2007), although Butler et al. (2010) have suggested that both samples may be described by a single luminosity function — that is,…”