Mostrar el registro sencillo del ítem

dc.contributor.authorMaguire, K.
dc.contributor.authorCristallo, S.
dc.date.accessioned2013-10-17T12:48:48Z
dc.date.available2013-10-17T12:48:48Z
dc.date.issued2009
dc.identifier.citationMaguire, K.; et al. Optical and near infrared coverage of SN 2004et: physical parameters and comparison with other type IIP supernovae. Monthly Notices of the Royal Astronomical Society, 404(2): 981-1004 (2010). [http://hdl.handle.net/10481/28443]es_ES
dc.identifier.issn0035-8711
dc.identifier.issn1365-2966
dc.identifier.otherarXiv:0912.3111v1
dc.identifier.urihttp://hdl.handle.net/10481/28443
dc.description.abstractWe present new optical and near-infrared (NIR) photometry and spectroscopy of the Type IIP supernova (SN), SN 2004et. In combination with already published data, this provides one of the most complete studies of optical and NIR data for any Type IIP SN from just after explosion to +500 d. The contribution of the NIR flux to the bolometric light curve is estimated to increase from 15 per cent at explosion to around 50 per cent at the end of the plateau and then declines to 40 per cent at 300 d. SN 2004et is one of the most luminous IIP SNe which has been well studied and characterized, and with a luminosity of log L= 42.3 erg s−1 and a 56Ni mass of 0.06 ± 0.04 M⊙, it is two times brighter than SN 1999em. We provide parametrized bolometric corrections as a function of time since explosion for SN 2004et and three other IIP SNe that have extensive optical and NIR data. These can be used as templates for future events in optical and NIR surveys without full wavelength coverage. We compare the physical parameters of SN 2004et with those of other well-studied IIP SNe and find that the kinetic energies span a range of 1050–1051 erg. We compare the ejected masses calculated from hydrodynamic models with the progenitor masses and limits derived from pre-discovery images. Some of the ejected mass estimates are significantly higher than the progenitor mass estimates, with SN 2004et showing perhaps the most serious mass discrepancy. With the current models, it appears difficult to reconcile 100 d plateau lengths and high expansion velocities with the low ejected masses of 5–6 M⊙ implied from 7–8 M⊙ progenitors. The nebular phase is studied using very late-time Hubble Space Telescope photometry, along with optical and NIR spectroscopy. The light curve shows a clear flattening at 600 d in the optical and the NIR, which is likely due to the ejecta impacting on circumstellar material. We further show that the [O I] 6300, 6364 Å line strengths in the nebular spectra of four Type IIP SNe imply ejected oxygen masses of 0.5–1.5 M⊙.es_ES
dc.language.isoenges_ES
dc.publisherOxford University Press (OUP); Royal Astronomical Societyes_ES
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivs 3.0 Licensees_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es_ES
dc.subjectSupernovae es_ES
dc.subject2004etes_ES
dc.subject2004Aes_ES
dc.subject2006myes_ES
dc.titleOptical and near infrared coverage of SN 2004et: physical parameters and comparison with other type IIP supernovaees_ES
dc.typepreprintes_ES
dc.rights.accessRightsopen accesses_ES
dc.identifier.doi10.1111/j.1365-2966.2010.16332.xes_ES


Ficheros en el ítem

[PDF]

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem

Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Excepto si se señala otra cosa, la licencia del ítem se describe como Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License