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The decay of optical emission from the Gamma-Ray Burst GRB 970228
Titus J. Galama, Paul J. Groot, Jan van Paradijs +6
We present the R_c band light curve of the optical transient (OT) associated with GRB970228, based on re-evaluation of existing photometry. Data obtained until April 1997 suggested…
Observations of GRB 970228 and GRB 970508, and the Neutron-Star Merger Model
Kailash C. Sahu, Mario Livio, Larry Petro +6
We present the discovery observations for the optical counterpart of the -ray burster GRB 970508 and discuss its light curve in the context of the fireball model. We analyze the…
T Pyxidis: The First Cataclysmic Variable with a Collimated Jet
T. Shahbaz, M. Livio, K. A. Southwell +1
We present the first observational evidence for a collimated jet in a cataclysmic variable system; the recurrent nova T Pyxidis. Optical spectra show bipolar components of H wit…
Optical photometry of the eclipsing Large Magellanic Cloud supersoft source CAL 87
C. Alcock
We present optical photometry of the eclipsing supersoft source, CAL87. These observations comprise long term data accumulated as a by-product of the MACHO Project, and high speed…