Properties of the Candidate Progenitor of SN 2011dh in M51

Details Properties of the Candidate Progenitor of SN 2011dh in M51 Properties of the Candidate Progenitor of SN 2011dh in M51

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3401....1l&link_type=abstract

The Astronomer's Telegram, #3401

Astronomy and Astrophysics

Astronomy

3

Infra-Red, Optical, Supernovae, Transient

Scientific paper

We report further preliminary analysis of Hubble Space Telescope images of the SN 2011dh candidate progenitor (ATEL #3398, #3399; CBET #2736). The object has F435W (B) = 22.4 ± 0.01 mag, F555W (V) = 21.84 ± 0.01 mag, and F814W (I) = 21.22 ± 0.01 mag. Assuming negligible host-galaxy reddening for the SN, and a distance modulus to M51 of 29.6 mag (Richmond et al. 1996, AJ, 111, 327), the object has M(I) = -8.4 mag, with color V - I = 0.6 mag, and B - V = 0.6 mag.

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