Gamma ray bursts: near or far?

نویسنده

  • J M Horack
چکیده

LETTERS 1157 The Earth, the Heavens, and the Carnegie Institution Rhino Conservation: B. Loutit and S. Montgomery of Washington, reviewed by E. L. Mills * Primordial * Clinical Trials: Subgroup Analyses: K. E. Immunity, M. Flajnik * Queen Number and Sociality Stanley, M. A. Fischl, A. C. Collier; R. Nowak * in Insects, R. H. Crozier * Vignettes A Coincidental Move: F. H. Shu * Violence and PRODUCTS & MATERIALS 1259 Biology: A. Raine, P. Brennan, S. Mednick a "Neurogenetic Determinism": S. Rose INSIDE AAAS 1260

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Effects of Cosmic Infrared Background on High Energy Delayed Gamma-rays from Gamma-ray Bursts

Regenerated high energy emissions from gamma-ray bursts (GRBs) are studied in detail. If the primary emission spectrum extends to TeV range, these very high energy photons will be absorbed by the cosmic infrared background (CIB). The created high energy electron-positron pairs up-scatter not only cosmic microwave background (CMB) photons but also CIB photons, and secondary photons are generated...

متن کامل

A White Dwarf Merger Paradigm for Supernovae and Gamma-Ray Bursts

Gamma-ray bursts can appear to be a hundred times as luminous as supernovae, but their underlying energy source(s) have remained a mystery. However, there has been evidence for some time now of an association of gamma-ray bursts with supernovae of Type Ib and Ic, a fact which has been exploited by a number of models, to explain the gamma-ray burst phenomenon. Here we interpret the results of ba...

متن کامل

A Search for Pulsations from the Compact Object of GRB 060218

Aims. A fraction of massive stars is expected to collapse to compact objects (accreting black holes or rapidly rotating neutron stars) that successfully produce gamma-ray bursts (GRBs). We examine the possibility of directly observing these gamma-ray burst compact objects (GCOs) using post-explosion observations of past and future GRB sites. Methods. We present a search for early pulsations fro...

متن کامل

Gamma-ray burst models.

I consider various possibilities for making gamma-ray bursts, particularly from close binaries. In addition to the much-studied neutron star+neutron star and black hole+neutron star cases usually considered good candidates for short-duration bursts, there are also other possibilities. In particular, neutron star+massive white dwarf has several desirable features. These systems are likely to pro...

متن کامل

Feeding Compact Objects: Accretion on All Scales

By collecting 17 short gamma-ray bursts with necessary data, we find a correlation of Lp ∝ E .7 p ,i , which is very consistent with that derived from a greatly expanded sample of 148 Swift long gamma-ray bursts. It is argued that the radiation mechanism of both long and short gamma-ray bursts should be similar, i.e., of quasi-thermal origin caused by the photosphere and the dissipation occurri...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Science

دوره 265 5176  شماره 

صفحات  -

تاریخ انتشار 1994