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BVRI Light Curves for 29 Type Ia Supernovae
Mario Hamuy, M. M. Phillips, Nicholas B. Suntzeff +2
BVRI light curves are presented for 27 Type Ia supernovae discovered during the course of the Calan/Tololo Survey and for two other SNe Ia observed during the same period. Estimate…
Low-Luminosity Seyfert Nuclei
Luis C. Ho, Alexei V. Filippenko, Wallace L. W. Sargent
We describe a new sample of Seyfert nuclei discovered during the course of an optical spectroscopic survey of nearby galaxies. The majority of the objects, many recognized for the…
High-Dispersion Spectroscopy of Luminous, Young Star Clusters: Evidence for Present-Day Formation of Globular Clusters
Luis C. Ho, Alexei V. Filippenko
We present evidence that some of the compact, luminous, young star clusters recently discovered through images taken with the Hubble Space Telescope (HST) have masses comparable to…
Young Star Clusters in Starburst Environments
Luis C. Ho
Recent high-resolution observations with the Hubble Space Telescope (HST) reveal that young star clusters of extraordinary luminosity and compactness ("super star clusters") are co…
Optical Spectroscopy of LINERs and Low-Luminosity Seyfert Nuclei
Luis C. Ho
An unprecedentedly large number of LINERs has been discovered in a recently completed optical spectroscopic survey of nearby galaxies, allowing several statistical properties of th…
An Atlas of Hubble Space Telescope Ultraviolet Images of Nearby Galaxies
Dan Maoz, Alexei V. Filippenko, Luis C. Ho +3
We present an atlas of UV ( Å) images, obtained with the Hubble Space Telescope (HST) Faint Object Camera, of the central of 110 galaxies. The observed…
Multiwavelength observations of short time-scale variability in NGC 4151. IV. Analysis of multiwavelength continuum variability
R. A. Edelson et al
This paper combines data from the three preceding papers in order to analyze the multi-waveband variability and spectral energy distribution of the Seyfert~1 galaxy NGC~4151 during…
Multiwavelength observations of short time-scale variability in NGC 4151. II. Optical observations
S. Kaspi et al
We present the results of an intensive ground-based spectrophotometric monitoring campaign of the Seyfert galaxy NGC~4151 for a period of over two months, with a typical temporal r…
Hubble Space Telescope Ultraviolet Images of Five Circumnuclear Star-Forming Rings
Dan Maoz, Aaron J. Barth, Amiel Sternberg +5
We present UV (2300 Ang) images, obtained with the HST Faint Object Camera, of the central 20'' of five galaxies containing circumnuclear star-forming rings. The five galaxies are…