P60 Photometric Monitoring of SN2009hd

Details P60 Photometric Monitoring of SN2009hd P60 Photometric Monitoring of SN2009hd

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atel.2113....1k&link_type=abstract

The Astronomer's Telegram, #2113

Astronomy and Astrophysics

Astronomy

4

Optical, Novae, Supernovae, Transients

Scientific paper

Photometric monitoring of SN2009hd (CBET#1867) with the Palomar 60- inch (P60) shows that this transient is very red and evolving slowly. On UT 2009 Jul 6.19, I measure g=17.5, r=16.0, i=15.5, z=15.1, B=18.2, V=17.0. Uncorrected for extinction, this corresponds to a faint absolute visual magnitude of -13. Photometric calibration was done wrt SDSS and the uncertainty in these magnitudes is <0.1. Image subtraction using SDSS images as a template was performed to obtain griz magnitudes.

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