▪ Abstract Since the discovery of the first bona-fide brown dwarfs and extra-solar planets in
1995, the field of low-mass stars and substellar objects has progressed considerably, both …

▪ Abstract Study of radio supernovae over the past 20 years includes two dozen detected
objects and more than 100 upper limits. From this work it is possible to identify classes of …

We present and discuss the photometric and spectroscopic evolution of the peculiar SN
1998bw, associated with GRB 980425, through an analysis of optical and near-IR data …

This review is concerned with a discussion of numerical methods for the solution of the
equations of special relativistic hydrodynamics (SRHD). Particular emphasis is put on a …

▪ Abstract The discovery of counterparts in X-ray and optical to radio wavelengths has
revolutionized the study of γ-ray bursts, until recently the most enigmatic of astrophysical …

We measure the local rates of" low-luminosity" gamma-ray bursts (LL GRBs; ie, L≲ 10 49
ergs s-1) and" high-luminosity" gamma-ray bursts (HL GRBs). The values are in the range …

A refined model for the unusual Type Ic supernova 1998bw, discovered as the optical
counterpart to GRB 980425, is presented, and synthetic light curves and spectra are …

We investigated the spectral evolution in the 2–700 keV energy band of gamma-ray bursts
(GRBs) detected by the Gamma-Ray Burst Monitor (GRBM) and localized with the Wide …

An overview of grid-based numerical methods used in relativistic hydrodynamics (RHD) and
magnetohydrodynamics (RMHD) is presented. Special emphasis is put on a comprehensive …

We present the discovery, classification, and extensive panchromatic (from radio to X-ray)
follow-up observations of PTF11qcj, a supernova (SN) discovered by the Palomar Transient …