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BVRI Photometry of Supernovae
Wynn C. G. Ho, Schuyler D. Van Dyk, Chien Y. Peng +5
We present optical photometry of one Type IIn supernova (1994Y) and nine Type Ia supernovae (1993Y, 1993Z, 1993ae, 1994B, 1994C, 1994M, 1994Q, 1994ae, and 1995D). SN 1993Y and SN 1…
Central Structural Parameters of Early-Type Galaxies as Viewed with HST/NICMOS
Swara Ravindranath, Luis C. Ho, Chien Y. Peng +2
We present surface photometry for the central regions of a sample of 33 early-type (E, S0, and S0/a) galaxies observed at 1.6 microns (H band) using the Hubble Space Telescope (HST…
The Central Regions of Early-Type Galaxies Hosting Active Galactic Nuclei as Viewed with HST/NICMOS
Swara Ravindranath, Luis C. Ho, Chien Y. Peng +2
We present preliminary results from surface photometry of a sample of early-type galaxies observed with NICMOS on board HST in the F160W (H-band) filter. Dust is found to occur mos…
Nuclear Luminosities and Radio Loudness of Seyfert Nuclei
Luis C. Ho, Chien Y. Peng
Historically, Seyfert nuclei have been considered to be radio-quiet active galactic nuclei (AGNs). We question this widely held assumption by showing that the distribution of the r…