Two dimensional clustering of Gamma-Ray Bursts using durations and hardness
Sign Up to like & getrecommendations! Published in 2022 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-022-04068-z
Abstract: Gamma-Ray Bursts (GRBs) have been conventionally bifurcated into two distinct categories: ``short'' and ``long'' with durations less than and greater than two seconds respectively. However, there is a lot of literature (although with conflicting results)… read more here.
Keywords: significance; aic bic; ray bursts; gamma ray ... See more keywords
Flux decay during thermonuclear X-ray bursts analysed with the dynamic power-law index method
Sign Up to like & getrecommendations! Published in 2017 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201730823
Abstract: The cooling of type-I X-ray bursts can be used to probe the nuclear burning conditions in neutron star envelopes. The flux decay of the bursts has been traditionally modelled with an exponential, e ... read more here.
Keywords: flux decay; bursts analysed; thermonuclear ray; ray bursts ... See more keywords
A report on Type II X-ray bursts from SMC X-1
Sign Up to like & getrecommendations! Published in 2018 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/18/12/148
Abstract: We study RXTE PCA data for the high mass X-ray binary source SMC X-1 between 2003-10 and 2003-12 when the source was in high states. The source is found to be frequently bursting which can… read more here.
Keywords: source; type ray; report type; ray ... See more keywords
A search for fast-radio-burst-like emission from Fermi gamma-ray bursts
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1889
Abstract: We report the results of the rapid follow-up observations of gamma-ray bursts (GRBs) detected by the Fermi satellite to search for associated fast radio bursts. The observations were conducted with the Australian Square Kilometre Array… read more here.
Keywords: gamma ray; radio burst; fast radio; search fast ... See more keywords
Sensitivity studies on the thermal beta+ decay and thermal neutrino decay rates in the one-zone X-ray burst model
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa2484
Abstract: We investigated how the thermal beta+ decay rates and their corresponding neutrino energy loss rates affect the properties of X-ray bursts. Previous studies carried out showed how the beta+ decay rates alone affect the properties of X-ray… read more here.
Keywords: thermal beta; decay; beta decay; decay rates ... See more keywords
How does the shape of gamma-ray bursts’ pulses affect the duration distribution?
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab2232
Abstract: Gamma-ray bursts (GRBs) come in two types, short and long. The distribution of logarithmic durations of long GRBs is asymmetric rather than Gaussian. Such an asymmetry, when modelled with a mixture of Gaussian distributions, requires… read more here.
Keywords: shape; gamma ray; ray bursts; distribution ... See more keywords
Notes on primordial black hole origin for thermal gamma-ray bursts
Sign Up to like & getrecommendations! Published in 2022 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stac196
Abstract: Recently, an alleged plausible astrophysical scenario was proposed for the production of observed thermal gamma-ray bursts, via Hawking radiation emitted from a primordial black hole (PBH) freely falling into a more massive black hole. Here… read more here.
Keywords: primordial black; gamma ray; ray bursts; hole ... See more keywords
Late-time accretion in neutron star mergers: Implications for short gamma-ray bursts and kilonovae
Sign Up to like & getrecommendations! Published in 2022 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1336
Abstract: We study the long-term ($t\gg 10\rm \, s$) evolution of the accretion disk after a neutron star(NS)-NS or NS-black hole merger, taking into account the radioactive heating by r-process nuclei formed in the first few… read more here.
Keywords: ray bursts; accretion; ray; neutron star ... See more keywords
A universal scaling law of black hole activity including gamma-ray bursts
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx1292
Abstract: Previous works show that a correlation among radio luminosity, X-ray luminosity, and black hole (BH) mass from stellar-mass BHs in X-ray binaries to supermassive BHs in active galactic nuclei (AGNs), which leads to the so-called… read more here.
Keywords: gamma ray; black hole; fundamental plane; ray ... See more keywords
Constraints on millisecond magnetars as the engines of prompt emission in gamma-ray bursts
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx2095
Abstract: We examine millisecond magnetars as central engines of Gamma Ray Bursts' (GRB) prompt emission. Using the proto-magnetar wind model of Metzger et al. 2011, we estimate the temporal evolution of the magnetization and power injection… read more here.
Keywords: gamma ray; prompt emission; magnetar; millisecond magnetars ... See more keywords
On the lack of a radio afterglow from some gamma-ray bursts – insight into their progenitors?
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx313
Abstract: We investigate the intrinsic properties of a sample of bright (E_iso > 10^52 erg) gamma-ray bursts, comparing those with and without radio afterglows. We find that the sample of bursts with no radio afterglows has… read more here.
Keywords: radio; gamma ray; ray bursts; radio afterglow ... See more keywords