BVRI Photometry of Supernovae

Abstract

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 1993Z appear to be normal SN Ia events with similar rates of decline, but we do not have data near maximum brightness. The colors of SN 1994C suggest that it suffers from significant reddening or is intrinsically red. The light curves of SN 1994Y are complicated; they show a slow rise and gradual decline near maximum brightness in $VRI$ and numerous changes in the decline rates at later times. SN 1994Y also demonstrates color evolution similar to that of the SN IIn 1988Z, but it is slightly more luminous and declines more rapidly than SN 1988Z. The behavior of SN1994Y indicates a small ejecta mass and a gradual strengthening of the H$\alpha$ emission relative to the continuum.

29 pages, 10 jpg figures, 6 eps figures, 8 tables; note added in proof

References in corpus (1)

• BVRI Light Curves for 22 Type Ia Supernovae

Cited by in corpus (16)

• Berkeley Supernova Ia Program I: Observations, Data Reduction, and Spectroscopic Sample of 582 Low-Redshift Type Ia Supernovae
• Caltech Core-Collapse Project (CCCP) observations of type IIn supernovae: typical properties and implications for their progenitor stars
• M33: A Galaxy with No Supermassive Black Hole
• Cepheid Calibrations from the Hubble Space Telescope of the Luminosity of Two Recent Type Ia Supernovae and a Re-determination of the Hubble Constant
• Type IIn supernova light-curve properties measured from an untargeted survey sample
• Environments of interacting transients: Impostors and type IIn supernovae
• Fuzzy Supernova Templates I: Classification
• Core-collapse supernovae in low-metallicity environments and future all-sky transient surveys
• Defining Photometric Peculiar Type Ia Supernovae
• X- and Gamma-Ray Flashes from Type Ia Supernovae?
• SCP06F6: A carbon-rich extragalactic transient at redshift z~0.14?
• Luminous Type II supernovae for their low expansion velocities
• Light curve studies of nearby Type Ia Supernovae with a Multi-band Stretch method
• Color and Variability Characteristics of Point Sources in the Faint Sky Variability Survey
• Galactic vs. Extragalactic Origin of the Peculiar Transient SCP 06F6
• Optical detection of the radio supernova SN 2000ft in the circumnuclear region of the luminous infrared galaxy NGC 7469