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Supermassive Black Holes from the SUNNS survey
Marc Sarzi, Hans-Walter Rix, Joseph C. Shields +5
We report three new accurate mass measurements for the supermassive black holes hosted by the early-type disk galaxies NGC2787, NGC4459 and NGC4596. The targets were selected from…
Evidence for a Supermassive Black Hole in the S0 Galaxy NGC 3245
A. J. Barth, M. Sarzi, H. -W. Rix +3
The S0 galaxy NGC 3245 contains a circumnuclear disk of ionized gas and dust with a radius of 1.1" (110 pc), making it an ideal target for dynamical studies with the Hubble Space T…
Analysis of the Type IIn Supernova 1998S: Effects of Circumstellar Interaction on Observed Spectra
Eric J. Lentz, E. Baron, Peter Lundqvist +20
We present spectral analysis of early observations of the Type IIn supernova 1998S using the general non-local thermodynamic equilibrium atmosphere code \tt PHOENIX}. We model both…
Preliminary Spectral Analysis of the Type II Supernova 1999em
E. Baron, David Branch, Peter H. Hauschildt +19
We have calculated fast direct spectral model fits to two early-time spectra of the Type-II plateau SN 1999em, using the SYNOW synthetic spectrum code. The first is an extremely ea…
SuperMassive Black Holes in Bulges
Marc Sarzi, Hans-Walter Rix, Joseph C. Shields +5
We present spatially extended gas kinematics at parsec-scale resolution for the nuclear regions of four nearby disk galaxies, and model them as rotation of a gas disk in the joint…
Variability in LINERs
J. C. Shields, H. -W. Rix, D. H. McIntosh +6
A small number of LINERs have been seen to display variable H-alpha emission with a very broad, double-peaked profile. Recent observations with the Hubble Space Telescope indicate…