LOFAR, the LOw-Frequency ARray, is a new-generation radio interferometer constructed in
the north of the Netherlands and across europe. Utilizing a novel phased-array design …

Gamma-ray bursts (GRBs) are classified into long and short events. Long GRBs (LGRBs)
are associated with the end states of very massive stars, while short GRBs (SGRBs) are …

Variable x-ray and γ-ray emission is characteristic of the most extreme physical processes in
the universe. We present multiwavelength observations of a unique γ-ray–selected transient …

We present a catalog of radio afterglow observations of gamma-ray bursts (GRBs) over a 14
year period from 1997 to 2011. Our sample of 304 afterglows consists of 2995 flux density …

Long-duration gamma-ray bursts (GRBs) are powerful tracers of star-forming galaxies. We
have defined a homogeneous subsample of 69 Swift GRB-selected galaxies spanning a …

In recent years, certain luminous extragalactic optical transients have been observed to last
only a few days. Their short observed duration implies a different powering mechanism from …

The Javalambre-Physics of the Accelerated Universe Astrophysical Survey (J-PAS) is a
narrow band, very wide field Cosmological Survey to be carried out from the Javalambre …

We present the discovery of an absorption-line redshift of z= 2.609 for GRB 090426,
establishing the first firm lower limit to a redshift for a gamma-ray burst (GRB) with an …

SGR 0418 5729 is a “Rosetta Stone” for deciphering the energy source of Soft Gamma Ray
Repeaters (SGRs) and Anomalous X-ray Pulsars (AXPs). We present a model based on …

We present laboratory measurements of the interaction between thermoelectric currents and
turbulent magnetoconvection. In a cylindrical volume of liquid gallium heated from below …