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- W2059622354 abstract "We present observations of the interacting transient SN 2009ip, from the start of the outburst in October 2012 until the end of the 2012 observing season. The transient reached a peak of $M_V$=-17.7 mag before fading rapidly, with a total integrated luminosity of 1.9$times10^{49}$ erg over the period of August-December 2012. The optical and near infrared spectra are dominated by narrow emission lines, signaling a dense circumstellar environment, together with multiple components of broad emission and absorption in H and He at velocities between 0.5-1.2$times10^4$ km s$^{-1}$. We see no evidence for nucleosynthesized material in SN 2009ip, even in late-time pseudo-nebular spectra. We set a limit of $<$0.02 M$_{odot}$ on the mass of any synthesized $^{56}$Ni from the late time lightcurve. A simple model for the narrow Balmer lines is presented, and used to derive number densities for the circumstellar medium of between $sim 10^{9}-10^{10}$ cm$^{-3}$. Our near-infrared data does not show any excess at longer wavelengths. Our last data, taken in December 2012, shows that SN 2009ip has spectroscopically evolved to something quite similar to its appearance in late 2009, albeit with higher velocities. It is possible that neither of the eruptive and high luminosity events of SN 2009ip were induced by a core-collapse. We show that the peak and total integrated luminosity can be due to the efficient conversion of kinetic energy from colliding ejecta, and that around 0.05-0.1 M$_{odot}$ of material moving at 0.5-1$times10^4$ km s$^{-1}$ could comfortably produce the observed luminosity. The ejection of multiple shells, lack of evidence for nucleosynthesied elements and broad nebular lines, are all consistent with the pulsational-pair instability scenario. In this case the progenitor star may still exist, and will be observed after the current outburst fades." @default.
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- W2059622354 date "2013-06-05" @default.
- W2059622354 modified "2023-10-16" @default.
- W2059622354 title "SN 2009ip à la PESSTO: no evidence for core collapse yet★" @default.
- W2059622354 cites W1710955822 @default.
- W2059622354 cites W1867863084 @default.
- W2059622354 cites W1890522558 @default.
- W2059622354 cites W1967274286 @default.
- W2059622354 cites W1970939299 @default.
- W2059622354 cites W1982502140 @default.
- W2059622354 cites W1990905945 @default.
- W2059622354 cites W1993476464 @default.
- W2059622354 cites W1995771714 @default.
- W2059622354 cites W2001465642 @default.
- W2059622354 cites W2010465498 @default.
- W2059622354 cites W2010976974 @default.
- W2059622354 cites W2015229441 @default.
- W2059622354 cites W2015706406 @default.
- W2059622354 cites W2024628084 @default.
- W2059622354 cites W2027737150 @default.
- W2059622354 cites W2031684441 @default.
- W2059622354 cites W2049548974 @default.
- W2059622354 cites W2053876856 @default.
- W2059622354 cites W2054055639 @default.
- W2059622354 cites W2058374761 @default.
- W2059622354 cites W2063437365 @default.
- W2059622354 cites W2064057617 @default.
- W2059622354 cites W2064167262 @default.
- W2059622354 cites W2069079861 @default.
- W2059622354 cites W2069169090 @default.
- W2059622354 cites W2072320067 @default.
- W2059622354 cites W2078647871 @default.
- W2059622354 cites W2082049504 @default.
- W2059622354 cites W2082987405 @default.
- W2059622354 cites W2083754446 @default.
- W2059622354 cites W2087012109 @default.
- W2059622354 cites W2087033679 @default.
- W2059622354 cites W2087679925 @default.
- W2059622354 cites W2089662520 @default.
- W2059622354 cites W2092143730 @default.
- W2059622354 cites W2092165725 @default.
- W2059622354 cites W2106827229 @default.
- W2059622354 cites W2120803621 @default.
- W2059622354 cites W2130197607 @default.
- W2059622354 cites W2131213682 @default.
- W2059622354 cites W2132177462 @default.
- W2059622354 cites W2136070800 @default.
- W2059622354 cites W2139777473 @default.
- W2059622354 cites W2142660164 @default.
- W2059622354 cites W2156096901 @default.
- W2059622354 cites W2162277752 @default.
- W2059622354 cites W2170243468 @default.
- W2059622354 cites W2949096495 @default.
- W2059622354 cites W2950131746 @default.
- W2059622354 cites W2950346593 @default.
- W2059622354 cites W3098741896 @default.
- W2059622354 cites W3098752460 @default.
- W2059622354 cites W3098788871 @default.
- W2059622354 cites W3099064497 @default.