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The Quadruple Gravitational Lens PG1115+080: Time Delays and Models
P. L. Schechter, C. D. Bailyn, R. Barr +24
Optical photometry is presented for the quadruple gravitational lens PG1115+080. A preliminary reduction of data taken from November 1995 to June 1996 gives component ``C'' leading…
The 6 cm Light Curves of B0957+561, 1979-1994: New Features and Implications for the Time Delay
Deborah B. Haarsma, Jacqueline N. Hewitt, Joseph Lehár +1
We report on 15 years of VLA monitoring of the gravitational lens B0957+561 at 6 cm. Since our last report in 1992, there have been 32 additional observations, in which both images…
A 23 GHz Survey of GRB Error Boxes
J. N. Hewitt, C. A. Katz, S. D. Barthelmy +11
The Haystack 37-meter telescope was used in a pilot project in May 1995 to observe GRB error boxes at 23~GHz. Seven BATSE error boxes and two IPN arcs were scanned by driving the b…