Explanipedia

A Misfired Outburst in the Neutron Star X-Ray Binary Centaurus X-4 Open

M. C. Baglio, Payaswini Saikia, D. M. Russell, J. Homan, Stefan Waterval , et al. · 2022

Physics Materials science

We report on a long-term optical monitoring of the neutron star X-ray binary Centaurus X-4 performed during the last 13.5 yr. This source has been in quiescence since its outburst in 1979. Our monitoring reveals the overall evolution of th…

The X-shooter GRB afterglow legacy sample (XS-GRB) Open

J. Selsing, D. Malesani, P. Goldoni, J. P. U. Fynbo, T. Krühler , et al. · 2018

Physics

In this work we present spectra of all γ -ray burst (GRB) afterglows that have been promptly observed with the X-shooter spectrograph until 31/03/2017. In total, we have obtained spectroscopic observations of 103 individual GRBs observed w…

The fraction of ionizing radiation from massive stars that escapes to the intergalactic medium Open

N. R. Tanvir, J. P. U. Fynbo, A. de Ugarte Postigo, J. Japelj, K. Wiersema , et al. · 2018

Physics

Spectra presented in the appendix will be made available in the \nGRBspec data base http://grbspec.iaa.es (de Ugarte Postigo et al. \n2014a).

The Properties of GRB 120923A at a Spectroscopic Redshift of z ≈ 7.8 Open

N. R. Tanvir, T. Laskar, A. J. Levan, D. A. Perley, Johannes Zabl , et al. · 2018

Physics

Gamma-ray bursts (GRBs) are powerful probes of early stars and galaxies, during and potentially even before the era of reionization. Although the number of GRBs identified at z ≳ 6 remains small, they provide a unique window on typical sta…

The luminous host galaxy, faint supernova and rapid afterglow rebrightening of GRB 100418A Open

A. de Ugarte Postigo, C. C. Thöne, K. Bensch, A. J. van der Horst, Д. А. Канн , et al. · 2018

Physics

Context . Long gamma-ray bursts (GRBs) give us the chance to study both their extreme physics and the star-forming galaxies in which they form. Aims . GRB 100418A, at a redshift of z = 0.6239, had a bright optical and radio afterglow, and …

Mass and metallicity scaling relations of high-redshift star-forming galaxies selected by GRBs Open

M. Arabsalmani, P. Møller, D. A. Perley, W. Freudling, J. P. U. Fynbo , et al. · 2017

Physics Mathematics

We present a comprehensive study of the relations between gas kinematics, metallicity and stellar mass in a sample of 82 gamma-ray burst (GRB)-selected galaxies using absorption and emission methods. We find the velocity widths of both emi…

GRB 161219B/SN 2016jca: A low-redshift gamma-ray burst supernova powered by radioactive heating Open

Z. Cano, L. Izzo, A. de Ugarte Postigo, C. C. Thöne, T. Krühler , et al. · 2017

Physics

Since the first discovery of a broad-lined type Ic supernova (SN) with a long-duration gamma-ray burst (GRB) in 1998, fewer than fifty GRB-supernovae (SNe) have been discovered. The intermediate-luminosity Swift GRB 161219B and its associa…

GRB 110715A: the peculiar multiwavelength evolution of the first afterglow detected by ALMA Open

R. Sánchez-Ramírez, P. J. Hancock, G. Jóhannesson, Tara Murphy, A. de Ugarte Postigo , et al. · 2016

Physics

We present the extensive follow-up campaign on the afterglow of GRB 110715A at 17 different wavelengths, from X-ray to radio bands, starting 81 s after the burst and extending up to 74 d later. We performed for the first time a GRB aftergl…

X-Shooter Spectroscopy Of The Puzzling Gamma-Ray Source 3Fgl1603.9-4903/Pmn J1603-4904 Open

P. Goldoni, Intae Jung, C. Boisson, Thomas Dauser, H. Sol , et al. · 2016

Physics

The Fermi/LAT instrument has detected about two thousand extragalactic high energy (E > 100 MeV) gamma-ray sources. 3FGL 1603.9-4903 is a very hard and bright one and it is associated to the radio source PMN J1603-4904. Its nature is not y…

1RXS J180408.9-342058: An ultra compact X-ray binary candidate with a transient jet Open

M. C. Baglio, P. D’Avanzo, S. Campana, P. Goldoni, N. Masetti , et al. · 2016

Physics Mathematics

We present a detailed NIR/optical/UV study of the transient low mass X-ray\nbinary 1RXS J180408.9-342058 performed during its 2015 outburst, aimed at\ndetermining the nature of its companion star. We obtained three optical spectra\nat the …

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