Results 11 to 20 of about 71,333 (243)

Hubble Space Telescope and Ground-Based Optical and Ultraviolet Observations of GRB010222 [PDF]

open access: yes, 2003
We report on Hubble Space Telescope WFPC2 optical and STIS near ultraviolet MAMA observations, and ground-based optical observations of GRB010222, spanning 15 hrs to 71 days.
A. Gal‐Yam   +19 more
core   +4 more sources

Infrared attosecond field transients and UV to IR few-femtosecond pulses generated by high-energy soliton self-compression

open access: yes, 2020
Infrared femtosecond laser pulses are important tools both in strong-field physics, driving X-ray high-harmonic generation, and as the basis for widely tuneable, if inefficient, ultrafast sources in the visible and ultraviolet.
Belli, Federico   +2 more
core   +1 more source

Multiwavelength spectral evolution during the 2011 outburst of the very faint X-ray transient Swift J1357.2-0933 [PDF]

open access: yes, 2012
We report our multiwavelength study of the 2011 outburst evolution of the newly discovered black hole candidate X-ray binary Swift J1357.2-0933. We analysed the Swift X-ray telescope and Ultraviolet/Optical telescope (UVOT) data taken during the ~7 ...
Armas Padilla   +32 more
core   +2 more sources

A Tidal Flare Candidate in Abell 1795 [PDF]

open access: yes, 2013
As part of our ongoing archival X-ray survey of galaxy clusters for tidal flares, we present evidence of an X-ray transient source within 1 arcmin of the core of Abell 1795. The extreme variability (a factor of nearly 50), luminosity (> 2 x 10^42 erg s^{-
Eracleous, M. C.   +4 more
core   +3 more sources

ASTROSAT: Some Key Science Prospects [PDF]

open access: yes, 2013
ASTROSAT is an astronomy satellite designed for simultaneous multi-wavelength studies in the Optical/UV and a broad X-ray energy range. With four X-ray instruments and a pair of UV-Optical telescopes, ASTROSAT will provide unprecendented opportunity for ...
Paul, Biswajit
core   +1 more source

Light Curves of the Neutron Star Merger GW170817/SSS17a: Implications for R-Process Nucleosynthesis [PDF]

open access: yes, 2017
On 2017 August 17, gravitational waves were detected from a binary neutron star merger, GW170817, along with a coincident short gamma-ray burst, GRB170817A.
Adams, C.   +43 more
core   +2 more sources

The digital data processing concepts of the LOFT mission

open access: yes, 2014
The Large Observatory for X-ray Timing (LOFT) is one of the five mission candidates that were considered by ESA for an M3 mission (with a launch opportunity in 2022 - 2024).
Argan, A.   +12 more
core   +1 more source

Disentangling jet and disc emission from the 2005 outburst of XTE J1118+480 [PDF]

open access: yes, 2010
The black hole X-ray transient, XTE J1118+480, has now twice been observed in outburst - 2000 and 2005 - and on both occasions remained in the low/hard X-ray spectral state. Here we present radio, infrared, optical, soft X-ray and hard X-ray observations
Baars   +55 more
core   +3 more sources

A Plasma Instability Theory of Gamma-Ray Burst Emission [PDF]

open access: yes, 1999
A new theory for gamma-ray burst radiation is presented. In this theory, magnetic fields and relativistic electrons are created through plasma processes arising as a relativistic shell passes through the interstellar medium.
J. J. Brainerd, Rees M. J.
core   +3 more sources

First results from the TUS orbital detector in the extensive air shower mode

open access: yes, 2017
TUS (Tracking Ultraviolet Set-up), the first orbital detector of extreme energy cosmic rays (EECRs), those with energies above 50 EeV, was launched into orbit on April 28, 2016, as a part of the Lomonosov satellite scientific payload. The main aim of the
Biktemerova, S. V.   +28 more
core   +1 more source

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