SN 2010ay is a Luminous and Broad-lined Type Ic Supernova within a Low-metallicity Host Galaxy

Abstract

We report on our serendipitous pre-discovery detection and detailed follow-up of the broad-lined Type Ic supernova (SN) 2010ay at z = 0.067 imaged by the Pan-STARRS1 3pi survey just ~4 days after explosion. The SN had a peak luminosity, M_R ~ -20.2 mag, significantly more luminous than known GRB-SNe and one of the most luminous SNe Ib/c ever discovered. The absorption velocity of SN 2010ay is v_Si ~ 19,000 km/s at ~40 days after explosion, 2-5 times higher than other broad-lined SNe and similar to the GRB-SN 2010bh at comparable epochs. Moreover, the velocity declines ~2 times slower than other SNe Ic-BL and GRB-SNe. Assuming that the optical emission is powered by radioactive decay, the peak magnitude implies the synthesis of an unusually large mass of 56 Ni, M_Ni = 0.9 M_solar. Modeling of the light-curve points to a total ejecta mass, M_ej ~ 4.7 M_sol, and total kinetic energy, E_K ~ 11x10^51 ergs. The ratio of M_Ni to M_ej is ~2 times as large for SN 2010ay as typical GRB-SNe and may suggest an additional energy reservoir. The metallicity (log(O/H)_PP04 + 12 = 8.19) of the explosion site within the host galaxy places SN 2010ay in the low-metallicity regime populated by GRB-SNe, and ~0.5(0.2) dex lower than that typically measured for the host environments of normal (broad-lined) Ic supernovae. We constrain any gamma-ray emission with E_gamma < 6x10^{48} erg (25-150 keV) and our deep radio follow-up observations with the Expanded Very Large Array rule out relativistic ejecta with energy, E > 10^48 erg. We therefore rule out the association of a relativistic outflow like those which accompanied SN 1998bw and traditional long-duration GRBs, but place less-stringent constraints on a weak afterglow like that seen from XRF 060218. These observations challenge the importance of progenitor metallicity for the production of a GRB, and suggest that other parameters also play a key role.

19 pages, 10 figures, V3 has revisions following referee's report; more information at http://www.cfa.harvard.edu/~nsanders/papers/2010ay/summary.html

References in corpus (32)

• The Supernova -- Gamma-Ray Burst Connection
• K-corrections and filter transformations in the ultraviolet, optical, and near infrared
• UV Star Formation Rates in the Local Universe
• The Eighth Data Release of the Sloan Digital Sky Survey: First Data from SDSS-III
• Long gamma-ray bursts and core-collapse supernovae have different environments
• Shock Breakout in Dense Mass Loss: Luminous Supernovae
• The First Systematic Study of Type Ibc Supernova Multi-band Light Curves
• The Galaxy Population Hosting Gamma-Ray Bursts
• Measured Metallicities at the Sites of Nearby Broad-Lined Type Ic Supernovae and Implications for the SN-GRB Connection
• Circumstellar Emission from Type Ib and Ic Supernovae
• The Broad-lined Type Ic SN 2003jd
• Discovery of the nearby long, soft GRB 100316D with an associated supernova
• Early-Time Photometry and Spectroscopy of the Fast Evolving SN 2006AJ Associated with GRB 060218
• Pan-STARRS1 Discovery of Two Ultra-Luminous Supernovae at z ~ 0.9
• The metallicity of the long GRB hosts and the Fundamental Metallicity Relation of low-mass galaxies
• Progenitor Diagnostics for Stripped Core-Collapse Supernovae: Measured Metallicities at Explosion Sites
• Models for the Type Ic Hypernova SN 2003lw associated with GRB 031203
• On the nature of nearby GRB/SN host galaxies
• XRF 100316D / SN 2010bh and the Nature of Gamma Ray Burst Supernovae
• SN 2009bb: a Peculiar Broad-Lined Type Ic Supernova
• The Rise Time of Type Ia Supernovae from the Supernova Legacy Survey
• IFU observations of the GRB 980425/SN 1998bw host galaxy: emission line ratios in GRB regions
• The nature of the dwarf starforming galaxy associated with GRB 060218 / SN2006aj
• A tale of two GRB-SNe at a common redshift of z = 0.54
• Synthetic off-axis light curves for low energy gamma-ray bursts
• A spectroscopically normal type Ic supernova from a very massive progenitor
• The properties of SN Ib/c locations
• Modeling The GRB Host Galaxy Mass Distribution: Are GRBs Unbiased Tracers of Star Formation?
• Metallicity in the GRB 100316D/SN 2010bh Host Complex
• On The Origin Of The Mass-Metallicity Relation For GRB Host Galaxies
• Core-collapse supernovae in low-metallicity environments and future all-sky transient surveys
• Unusually High Metallicity Host Of The Dark LGRB 051022

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