The first month of evolution of the slow-rising Type IIP SN 2013ej in M74

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dc.contributor.authorValenti, S.
dc.contributor.authorSand, D.
dc.contributor.authorPastorello, A.
dc.contributor.authorGraham, Melissa L.
dc.contributor.authorHowell, D. A.
dc.contributor.authorParrent, J. T.
dc.contributor.authorTomasella, L.
dc.contributor.authorOchner, P.
dc.contributor.authorFraser, Morgan
dc.contributor.authorBenetti, Stefano
dc.contributor.authorYuan, Fang
dc.date.accessioned2015-12-10T23:32:20Z
dc.date.issued2014
dc.date.updated2015-12-10T11:19:16Z
dc.description.abstractWe present early photometric and spectroscopic observations of SN 2013ej, a bright Type IIP supernova (SN) in M74. SN 2013ej is one of the closest SNe ever discovered. The available archive images and the early discovery help to constrain the nature of its progenitor. The earliest detection of this explosion was on 2013 July 24.125 UT and our spectroscopic monitoring with the FLOYDS spectrographs began on July 27.7 UT, continuing almost daily for two weeks. Daily optical photometric monitoringwas achieved with the 1mtelescopes of the Las Cumbres Observatory Global Telescope (LCOGT) network, and was complemented by UV data from Swift and near-infrared spectra from Public ESO Spectroscopic Survey of Transient Objects and Infrared Telescope Facility. The data from our monitoring campaign show that SN 2013ej experienced a 10 d rise before entering into a well-defined plateau phase. This unusually long rise time for a Type IIP has been seen previously in SN 2006bp and SN 2009bw. A relatively rare strong absorption blueward of Hα is present since our earliest spectrum. We identify this feature as Si II, rather than high-velocity Hα as sometimes reported in the literature.
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/1885/68802
dc.publisherBlackwell Publishing Ltd
dc.sourceMonthly Notices of the Royal Astronomical Society
dc.titleThe first month of evolution of the slow-rising Type IIP SN 2013ej in M74
dc.typeJournal article
local.bibliographicCitation.issue1
local.bibliographicCitation.lastpageL105
local.bibliographicCitation.startpageL101
local.contributor.affiliationValenti, S, Las Cumbres Observatory Global Telescope Network
local.contributor.affiliationSand, D., Texas Tech University
local.contributor.affiliationPastorello, A., INAF - Osservatorio Astronomico di Padova
local.contributor.affiliationGraham, Melissa L, Las Cumbres Observatory Global Telescope Network
local.contributor.affiliationHowell, D. A., Las Cumbres Observatory Global Telescope Network
local.contributor.affiliationParrent, J.T., Las Cumbres Observatory Global Telescope Network
local.contributor.affiliationTomasella, L, Osservatorio Astronomico di Padova
local.contributor.affiliationOchner, P., INAF - Osservatorio Astronomico di Padova
local.contributor.affiliationFraser, Morgan, Queen's University Belfast
local.contributor.affiliationBenetti, Stefano, INAF-Osservatorio Astronomico di Padova
local.contributor.affiliationYuan, Fang, College of Physical and Mathematical Sciences, ANU
local.contributor.authoremailu4981546@anu.edu.au
local.contributor.authoruidYuan, Fang, u4981546
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor020100 - ASTRONOMICAL AND SPACE SCIENCES
local.identifier.ariespublicationU3488905xPUB1834
local.identifier.citationvolume438
local.identifier.doi10.1093/mnrasl/slt171
local.identifier.scopusID2-s2.0-84892549551
local.identifier.thomsonID000330457100021
local.identifier.uidSubmittedByU3488905
local.type.statusPublished Version

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