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Limits on the Abundance of Galactic Planets From Five Years of Planet Observations
M. D. Albrow, J. An, J. -P. Beaulieu +21
We search for signatures of planets in 43 intensively monitored microlensing events that were observed between 1995 and 1999. Planets would be expected to cause a short duration (~…
X-Ray and Optical Variability in NGC 4051 and the Nature of Narrow-Line Seyfert 1 Galaxies
B. M. Peterson, I. M. McHardy, B. J. Wilkes +14
We report on the results of a three-year program of coordinated X-ray and optical monitoring of the narrow-line Seyfert 1 galaxy NGC 4051. The rapid continuum variations observed i…
Narrow-Line Seyfert 1s: 15 Years Later
Richard W. Pogge
The spectroscopic properties of the objects that came to be called Narrow-Line Seyfert 1s were first systematically described and named as such 15 years ago by Osterbrock & Pogge (…
PLANET observations of microlensing event OGLE-1999-BUL-23: limb darkening measurement of the source star
M. D. Albrow, J. An, J. -P. Beaulieu +17
We present PLANET observations of OGLE-1999-BUL-23, a binary-lens microlensing event towards the Galactic bulge. PLANET observations in the I and V bands cover the event from just…