101 citations · 103 across the 5 of their papers we have counts for
8 papers · 1 filter
The environmental dependence of neutral hydrogen content in spiral galaxies
Jesse Miner, Jim Rose, Sheila Kannappan
We present a study of the relationship between the deficiency of neutral hydrogen and the local three-dimensional number density of spiral galaxies in the Arecibo catalog of global…
Systematic Uncertainties in Stellar Mass Estimation for Distinct Galaxy Populations
Sheila J. Kannappan, Eric Gawiser
We show that different stellar-mass estimation methods yield overall mass scales that disagree by factors up to ~2 for the z=0 galaxy population, and more importantly, relative mas…
SN 2005cg: Explosion Physics and Circumstellar Interaction of a Normal Type Ia Supernova in a Low-Luminosity Host
Robert Quimby, Peter Hoeflich, Sheila J. Kannappan +5
We present the spectral evolution, light curve, and corresponding interpretation for the "normal-bright" Type Ia Supernova 2005cg discovered by ROTSE-IIIc. The host is a low-lumino…
UBVRI Light Curves of 44 Type Ia Supernovae
Saurabh Jha, Robert P. Kirshner, Peter Challis +2
We present UBVRI photometry of 44 type-Ia supernovae (SN Ia) observed from 1997 to 2001 as part of a continuing monitoring campaign at the Fred Lawrence Whipple Observatory of the…
Extending the Search for Counterrotating Gas and Stars in Galaxies: A Study of Late-Type Dwarfs
J. M. Guie, S. J. Kannappan, Z. Balog +1
In a previous study on gas-stellar counterrotation for a large sample of E/S0 and spiral galaxies (Kannappan & Fabricant 2001), two dwarf irregular galaxies were included, of which…
Tools for Identifying Spurious Luminosity Offsets in Tully-Fisher Studies: Application at Low Redshift and Implications for High Redshift
Sheila J. Kannappan, Elizabeth J. Barton
Studies of high-redshift galaxies usually interpret offsets from the Tully- Fisher (TF) relation as luminosity evolution. However, apparent luminosity offsets may actually reflect…