TY - JOUR
T1 - Multi-wavelength observations of the enduring type IIn Supernovae 2005ip and 2006jd
AU - Stritzinger, Maximilian
AU - Taddia, Francesco
AU - Fransson, Claes
AU - Fox, Ori D.
AU - Morrell, Nidia
AU - Phillips, M.M.
AU - Sollerman, Jesper
AU - Anderson, J.P.
AU - Boldt, Luis
AU - Brown, Peter J.
AU - Campillay, Abdo
AU - Castellon, Sergio
AU - Contreras, Carlos
AU - Folatelli, Gaston
AU - Habergham, S. M.
AU - Hamuy, Mario
AU - Hjorth, Jens
AU - James, Phil A.
AU - Krzeminski, Wojtek
AU - Mattila, Seppo
AU - Persson, Sven E.
AU - Roth, Miguel
PY - 2012
Y1 - 2012
N2 - We present an observational study of the Type IIn supernovae (SNe IIn) 2005ip and 2006jd. Broadband UV, optical, and near-IR photometry, and visual-wavelength spectroscopy of SN 2005ip complement and extend upon published observations to 6.5 years past discovery. Our observations of SN 2006jd extend from UV to mid-infrared wavelengths, and like SN 2005ip, are compared to reported X-ray measurements to understand the nature of the progenitor. Both objects display a number of similarities with the 1988Z-like subclass of SN IIn including (1) remarkably similar early-and late-phase optical spectra, (2) a variety of high-ionization coronal lines, (3) long-duration optical and near-IR emission, and (4) evidence of cold and warm dust components. However, diversity is apparent, including an unprecedented late-time r-band excess in SN 2006jd. The observed differences are attributed to differences between the mass-loss history of the progenitor stars. We conclude that the progenitor of SN 2006jd likely experienced a significant mass-loss event during its pre-SN evolution akin to the great 19th century eruption of. Carinae. Contrarily, as advocated by Smith et al., the circumstellar environment of SN 2005ip is found to be more consistent with a clumpy wind progenitor.
AB - We present an observational study of the Type IIn supernovae (SNe IIn) 2005ip and 2006jd. Broadband UV, optical, and near-IR photometry, and visual-wavelength spectroscopy of SN 2005ip complement and extend upon published observations to 6.5 years past discovery. Our observations of SN 2006jd extend from UV to mid-infrared wavelengths, and like SN 2005ip, are compared to reported X-ray measurements to understand the nature of the progenitor. Both objects display a number of similarities with the 1988Z-like subclass of SN IIn including (1) remarkably similar early-and late-phase optical spectra, (2) a variety of high-ionization coronal lines, (3) long-duration optical and near-IR emission, and (4) evidence of cold and warm dust components. However, diversity is apparent, including an unprecedented late-time r-band excess in SN 2006jd. The observed differences are attributed to differences between the mass-loss history of the progenitor stars. We conclude that the progenitor of SN 2006jd likely experienced a significant mass-loss event during its pre-SN evolution akin to the great 19th century eruption of. Carinae. Contrarily, as advocated by Smith et al., the circumstellar environment of SN 2005ip is found to be more consistent with a clumpy wind progenitor.
U2 - 10.1088/0004-637X/756/2/173
DO - 10.1088/0004-637X/756/2/173
M3 - Journal article
VL - 756
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 2
M1 - 173
ER -