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A Population of Intergalactic Supernovae in Galaxy Clusters
Avishay Gal-Yam, Dan Maoz, Puragra Guhathakurta +1
We have discovered seven type Ia cluster supernovae (SNe) in the course of the Wise Observatory Optical Transients Search in the fields of galaxy clusters with redshifts between z=…
Reverberation Mapping of High-Redshift, High-Luminosity Quasars
Shai Kaspi, Hagai Netzer, Dan Maoz +3
We present preliminary results from a reverberation mapping program to measure the Broad Line Region size in high-redshift, high-luminosity quasars. The observations are carried ou…
A Survey for Large Separation Lensed FIRST Quasars, II. Magnification Bias and Redshift Distribution
Eran O. Ofek, Hans-Walter Rix, Dan Maoz +1
The statistics of large-separation gravitational lensing are a powerful tool to probe mass distributions on the scale of galaxy clusters. In this paper we refine the analysis of ou…
X-ray vs. Optical Variations in the Seyfert 1 Nucleus NGC 3516: A Puzzling Disconnectedness
Dan Maoz, Alex Markowitz, Rick Edelson +1
We present optical broadband (B and R) observations of the Seyfert 1 nucleus NGC 3516, obtained at Wise Observatory from March 1997 to March 2002, contemporaneously with X-ray 2-10…
Comment on "Measuring the black hole masses of high redshift quasars"
Dan Maoz
In a recent paper, McLure & Jarvis (2002, astro-ph/0204473, v.1) reanalyze AGN broad-line reverberation measurements presented in Kaspi et al. (2000). They find the broad-line regi…
Not Color Blind: Using Multiband Photometry to Classify Supernovae
Dovi Poznanski, Avishay Gal-Yam, Dan Maoz +3
Large numbers of supernovae (SNe) have been discovered in recent years, and many more will be found in the near future. Once discovered, further study of a SN and its possible use…