@article{d2b2a1fa470d4d2b87c01ce174b42c1f,
title = "Environment-derived constraints on the progenitors of low-luminosity type I supernova",
abstract = "We present a study of the properties of the host galaxies of unusual transient objects of two types, both being subluminous compared with the major classes of supernovae. Those of one type exhibit unusually strong calcium features, and have been termed 'Ca-rich'. Those of the second type, with SN2002cx as the prototype and SN2008ha as the most extreme example to date, have some properties in common with the first, but show typically lower ejecta velocities and different early spectra. We confirm important differences in the environments of the two types, with the Ca-rich transients preferentially occurring in galaxies dominated by old stellar populations. Quantitatively, the association of the Ca- rich transients with regions of ongoing star formation is well matched to that of Type Ia supernovae. The SN2002cx-like transients are very different, with none of the present sample occurring in an early-type host, and a statistical association with star-formation regions similar to that of Type II-P supernovae, and therefore a delay time of 30-50 Myr.",
keywords = "Supernovae:general",
author = "Lyman, \{J. D.\} and James, \{P. A.\} and Hagai Perets and Anderson, \{J. P.\} and A. Gal-Yam and P. Mazzali and Percival, \{S. M.\}",
note = "National Aeronautics and Space Administration; UK Science and Technology Facilities Council; CONICYT through FONDECYT [3110142]; Millennium Center for Supernova Science [P10-064-F]; ISF; EU/FP7/ERC; Minerva programme; ARCHES programme; Helen and Martin Kimmel Award for Innovative InvestigationThis research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. We acknowledge the usage of the HyperLeda data base. The Liverpool Telescope is operated on the island of La Palma by Liverpool John Moores University in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias with financial support from the UK Science and Technology Facilities Council. The Isaac Newton Telescope is operated on the island of La Palma by the Isaac Newton Group in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias. This research also uses observations made with the ESO 2.2 m telescope at the La Silla Observatory (proposal ID 084.D-0195). JDL acknowledges the UK Science and Technology Facilities Council for research studentship support. JA acknowledges support from CONICYT through FONDECYT grant 3110142, and by the Millennium Center for Supernova Science (P10-064-F), with input from 'Fondo de Innovacin para La Competitividad, del Ministerio de Economa, Fomento y Turismo de Chile'. AG was supported by grants from the ISF, the EU/FP7/ERC, the Minerva and ARCHES programmes, and the Helen and Martin Kimmel Award for Innovative Investigation.",
year = "2013",
month = sep,
doi = "10.1093/mnras/stt1038",
language = "English",
volume = "434",
pages = "527--541",
journal = "MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "1",
}