Do Very Short Gamma Ray Bursts Originate from Primordial Black Holes? Review

• 作者: Agnieszka Janiuk Bozena Czerny David B. Cline Stanislaw Otwinowski
• 来源期刊: 天文学与天体物理学国际期刊(英文)
• 学科: 地球科学
• 关键词: BLACK HOLE PHYSICS COSMOLOGY Gamma RAY BURST Primordial BLACK HOLE
• 年，卷（期）: 2011,（3）
• 页码范围: 164-172
• 页数: 9页
• 分类号: P1

摘要

We present the state of current research of Very Short Gamma Ray Bursts (VSGRBs) from seven GRB detectors. We found that VSGRBs form distinct class of GRBs, which in our opinion, in most cases can originate from the evaporating Primordial Black Holes (PBHs). Arguments supporting our opinion: 1) GRBs with time duration (T90) < 100 ms form distinct class: VSGRBs. 2) We observe significant anisotropy in the galactic angular distribution of BATSE VSGRB events. 3) V/Vmax distribution for BATSE VSGRB events indicates the local distance production. 4) VSGBBs have more energetic γ-ray burst than other GRBs with longer duration (KONUS). 5) We observe small number of afterglows in SWIFT VSGRB sample (25%), in contrast with the noticeable afterglow frequency in SGRB sample (78%). 6) Time profile of rising part BATSE VSGRBs is in agreement with the evaporation PBH model.