Journal
ASTROPHYSICAL JOURNAL
Volume 830, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.3847/0004-637X/830/1/13
Keywords
galaxies: abundances; galaxies: dwarf; galaxies: photometry; supernovae: general
Categories
Funding
- Marie Sklodowska-Curie Individual Fellowship within the Horizon European Union (EU) Framework Programme for Research and Innovation [H2020-MSCA-IF-2014-660113]
- National Aeronautics and Space Administration (NASA)
- National Aeronautics and Space Administration (NASA) through Hubble Fellowship - Space Telescope Science Institute (STScI) [HST-HF-51296.01-A]
- NASA [NAS 5-26555]
- DNRF
- National Science Foundation (NSF) Grant [PHYS-1066293]
- EU/FP7 via ERC grant [307260]
- Israeli Committee for planning and budgeting
- ISF
- Minerva grant
- ISF grant
- Weizmann-UK making connections program
- Kimmel award
- YeS award
- NSF grant [AST-1211916]
- TABASGO Foundation
- Christopher R. Redlich Fund
- NASA/HST grants from STScI [AR-12850, AR-14295]
- W. M. Keck Foundation
- NASA
- Science and Technology Facilities Council [ST/M000966/1] Funding Source: researchfish
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We present ultraviolet through near-infrared photometry and spectroscopy of the host galaxies of all superluminous supernovae (SLSNe) discovered by the Palomar Transient Factory prior to 2013 and derive measurements of their luminosities, star formation rates, stellar masses, and gas-phase metallicities. We find that Type. I (hydrogen-poor) SLSNe (SLSNe I) are found almost exclusively in low-mass (M-* < 2 x 10(9) M-circle dot) and metal-poor (12 +. log(10)[O/H] < 8.4) galaxies. We compare the mass and metallicity distributions of our sample to nearby galaxy catalogs in detail and conclude that the rate of SLSNe I as a fraction of all SNe is heavily suppressed in galaxies with metallicities greater than or similar to 0.5 Z(circle dot). Extremely low metallicities are not required and indeed provide no further increase in the relative SLSN rate. Several SLSN I hosts are undergoing vigorous starbursts, but this may simply be a side effect of metallicity dependence: dwarf galaxies tend to have bursty star formation histories. Type. II (hydrogen-rich) SLSNe (SLSNe II) are found over the entire range of galaxy masses and metallicities, and their integrated properties do not suggest a strong preference for (or against) low-mass/low-metallicity galaxies. Two hosts exhibit unusual properties: PTF 10uhf is an SLSN I in a massive, luminous infrared galaxy at redshift z = 0.29, while PTF 10tpz is an SLSN II located in the nucleus of an early-type host at z = 0.04.
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