SN 2005ap: A Most Brilliant Explosion

Details SN 2005ap: A Most Brilliant Explosion SN 2005ap: A Most Brilliant Explosion

2007-09-03

arxiv.org/abs/0709.0302v1

Astronomy and Astrophysics

Astrophysics

ApJ Letters Accepted; 4 pages

Scientific paper

10.1086/522862

We present unfiltered photometric observations with ROTSE-III and optical spectroscopic follow-up with the HET and Keck of the most luminous supernova yet identified, SN 2005ap. The spectra taken about 3 days before and 6 days after maximum light show narrow emission lines (likely originating in the dwarf host) and absorption lines at a redshift of z=0.2832, which puts the peak unfiltered magnitude at -22.7 +/- 0.1 absolute. Broad P-Cygni features corresponding to H-alpha, CIII, NIII, and OIII, are further detected with a photospheric velocity of ~20,000 km/s. Unlike other highly luminous supernovae such as 2006gy and 2006tf that show slow photometric evolution, the light curve of SN 2005ap indicates a 1-3 week rise to peak followed by a relatively rapid decay. The spectra also lack the distinct emission peaks from moderately broadened (FWHM ~ 2,000 km/s) Balmer lines seen in SN 2006gy and SN 2006tf. We briefly discuss the origin of the extraordinary luminosity from a strong interaction as may be expected from a pair instability eruption or a GRB-like engine encased in a H/He envelope.

Affiliated with

Also associated with

No associations

Rating

SN 2005ap: A Most Brilliant Explosion does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with SN 2005ap: A Most Brilliant Explosion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SN 2005ap: A Most Brilliant Explosion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-413971