PTF11eon/SN2011dh is Possibly a Type IIb Event

Details PTF11eon/SN2011dh is Possibly a Type IIb Event PTF11eon/SN2011dh is Possibly a Type IIb Event

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3413....1a&link_type=abstract

The Astronomer's Telegram, #3413

Astronomy and Astrophysics

Astronomy

2

Optical, Ultra-Violet, Supernovae

Scientific paper

We have obtained optical photometry of the Type II SN PTF11eon/SN2011dh (ATEL #3398; CBET #2736) using the Palomar 48" Oschin Telescope and the Wise Observatory 1m and 18" telescopes. In the g band we find that the supernova declined from magnitude 13.18 to magnitude 14.94 between June 1.69 and June 3.85 (UT dates used throughout), and then began to increase in brightness rapidly at ~0.3 mag/day. This behavior is reminiscent of that of the prototypical Type IIb SN 1993J, and may indicate the detection of the shock-breakout tail.

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