Kannappan, S. J., Guie, J. M., Baker, A. J.
We identify a population of morphologically defined E/S0 galaxies lying on the blue sequence at the present epoch. Using three samples, we analyze blue-sequence E/S0s with stellar masses >10^8 Msun,...
J. M. Guie, P. Berlind, S. J. Kannappan, Z. Balog
Extending the Search for Counterrotating Gas and Stars in Galaxies: A Study of Late-Type Dwarfs
Guie, J. M., Kannappan, S. J., Balog, Z., Berlind, P.
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 one was...
Angular Size Measurements of Carbon Miras and S-Type Stars (2004)
Kannappan, S. J., Van Belle, G. T., Dyck, H. M.
In our continuing investigation of highly evolved stars, we report new interferometric angular diameter observations of 5 carbon and 4 S-type Mira Variable stars, and 4 non-Mira S Stars. From the...
Interpreting Offsets from the Tully-Fisher Relation (2002)
Kannappan, S. J., Gillespie, E. Barton, Fabricant, D. G., Franx, M., Vogt, N. P.
We have previously demonstrated that Tully-Fisher residuals correlate with tracers of star formation history (color and emission line equivalent width) for a broad sample of Sa--Sd spiral galaxies...
The Nearby Field Galaxy Survey: a spectrophotometric and photometric study of nearby galaxies (2001)
Jansen, R. A., Kannappan, S. J.
We report on our observing program to obtain integrated spectrophotometry, intermediate and high resolution major axis spectra, and U,B,R surface photo- metry of a representative sample of ~200...
A Broad Search for Counterrotating Gas and Stars: Evidence for Mergers and Accretion (2001)
S. J. Kannappan, D. G. Fabricant
We measure the frequency of bulk gas-stellar counterrotation in a sample of 67 galaxies drawn from the Nearby Field Galaxy Survey, a broadly representative survey of the local galaxy population down...
A Broad Search for Counterrotating Gas and Stars: Evidence for Mergers and Accretion (2000)
Kannappan, S. J., Fabricant, D. G.
We measure the frequency of bulk gas-stellar counterrotation in a sample of 67 galaxies drawn from the Nearby Field Galaxy Survey, a broadly representative survey of the local galaxy population down...
Kinematic Asymmetries in a Broad Galaxy Sample (2000)
Kannappan, S. J., Fabricant, D. G.
We analyze asymmetries in the gas rotation curves of 113 galaxies drawn from the Nearby Field Galaxy Survey, spanning a broad range of luminosities and morphologies. If the origin of the rotation...
Frequency of Gas-Stellar Counterrotation (2000)
Kannappan, S. J., Fabricant, D. G.
We search for bulk counterrotation of the gas and stars in 67 galaxies of all types and a wide range of luminosities. Bulk counterrotation characterizes \~25-30% of E/S0's with extended gas, but at...