Results 81 to 90 of about 1,351 (207)
Optical Photometry of the GRB 010222 Afterglow
The optical afterglow of GRB 010222 was observed using the recently installed 2-m telescope at the Indian Astronomical Observatory, Hanle, and the telescopes at the Vainu Bappu Observatory, Kavalur, beginning ~ 0.6 day after the detection of the event.
Cowsik, R.+7 more
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Optical photometry of V4334 Sgr (Sakurai's Object)
LaTeX, 10 pages, 5 ps-figures, to be published in ...
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We present optical photometry of the galactic bulge low-mass X-ray binary GX 349+2 (Sco X-2) obtained in July 1993 and March 1996. Short-term variations up to one magnitude are present on time scales of a few hours, which are related to the known X-ray behaviour of the source.
Barziv, O.+7 more
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Benjamín Thomson, Count Rumford
Benjamin Thomson, Count Rumford (1752-1814), was a self-educated scientist, military man, and political economist, living during the turbulent period of the American Revolution and the European Wars of the 18th and 19th centuries. He carried on important
Jaime Wisniak
doaj
Optical and infrared surface photometry of NGC 3077
Photoelectric U, B, and V, photovoltaic K, and four-filter CCD surface photometry of the small, M81-linked Irr II galaxy NGC 3077 are reported. The observations are compared with data from previous studies, and the mass, density, and optical depth ratios are determined for a prominent dust cloud near the center of the galaxy.
Jill S. Price, Craig A. Gullixson
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Photometry with adaptive optics: A first guide to expected performance [PDF]
O. Esslinger, M. G. Edmunds
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Binary Star Differential Photometry Using the Adaptive Optics System at Mount Wilson Observatory [PDF]
Theo A. ten Brummelaar+6 more
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ι Cassiopeiae: Orbit, Masses, and Photometry from Adaptive Optics Imaging in theIandHBands [PDF]
J. Drummond+3 more
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Adaptive Optics Photometry and Astrometry of Binary Stars [PDF]
Lewis C. Roberts+8 more
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Millisecond optical photometry of the DQ Herculis objects
The results of millisecond optical photometry of the DQ Herculis stars EX Hya, H2252-035, V1223 Sgr, and AE Aqr obtained at the Las Campanas Observatory and Cerro Tololo Inter-American Observatory during the years 1985, 1986, and 1987 are reported. The data for coherent and incoherent features are searched for.
James N. Imamura+1 more
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