EXPLAINING THE SUPERNOVA IMPOSTOR SN 2009ip AS MERGERBURST

@article{Soker2013EXPLAININGTS,
  title={EXPLAINING THE SUPERNOVA IMPOSTOR SN 2009ip AS MERGERBURST},
  author={Noam Soker and Amit Kashi},
  journal={The Astrophysical Journal Letters},
  year={2013},
  volume={764}
}
  • N. Soker, A. Kashi
  • Published 22 November 2012
  • Physics, Geology
  • The Astrophysical Journal Letters
We propose that the energetic major outburst of the supernova (SN) impostor SN 2009ip in 2012 September (outburst 2012b) was a mergerburst event, where two massive stars merged. The previous outbursts of 2009 and 2011 might have occurred near periastron passages of the binary system prior to the merger, in a similar manner to the luminosity peaks in the 19th century Great Eruption of the massive binary system Eta Carinae. The major 2012b outburst and the 2012a pre-outburst resemble the light… 
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References

SHOWING 1-10 OF 33 REFERENCES
A giant outburst two years before the core-collapse of a massive star
TLDR
It is reported that the peculiar type Ib supernova SN 2006jc is spatially coincident with a bright optical transient that occurred in 2004, andSpectroscopic and photometric monitoring of the supernova leads us to suggest that the progenitor was a carbon-oxygen Wolf–Rayet star embedded within a helium-rich circumstellar medium.
Interacting Supernovae and Supernova Impostors: SN 2009ip, is this the End?
We report the results of a three-year-long dedicated monitoring campaign of a restless luminous blue variable (LBV) in NGC 7259. The object, named SN 2009ip, was observed photometrically and
The Unprecedented Third Outburst of SN 2009ip: A Luminous Blue Variable Becomes a Supernova
Some reports of supernova (SN) discoveries turn out not to be true core-collapse explosions. One such case was SN 2009ip, which was recognized to be a luminous blue variable (LBV) eruption. This
The Rise of the Remarkable Type IIn Supernova SN 2009ip
Recent observations by Mauerhan et al. have shown the unprecedented transition of the previously identified luminous blue variable (LBV) and supernova (SN) impostor SN 2009ip to a real Type IIn SN
Evolution of V838 Monocerotis during and after the 2002 eruption
By fitting the available photometric data on V838 Mon with standard supergiant spectra we have derived principal stellar parameters, i.e. effective temperature, radius and luminosity, and followed
V1309 Scorpii: merger of a contact binary
Context. Stellar mergers are expected to take place in numerous circumstences in the evolution of stellar systems. In particular, they are considered as a plausible origin of stellar eruptions of the
High-resolution optical spectroscopy of V838 Monocerotis in 2009
Context. V838 Mon erupted at the beginning of 2002. In the course of the outburst the object evolved to low effective temperatures and declined as a very late M-type supergiant. Among various
PERIASTRON PASSAGE TRIGGERING OF THE 19TH CENTURY ERUPTIONS OF ETA CARINAE
We reconstruct the evolution of η Car in the last two centuries under the assumption that the two 19th century eruptions were triggered by periastron passages and through this reconstruction
Luminous blue variable eruptions and related transients: diversity of progenitors and outburst properties
We present new light curves and optical spectra for a number of extragalactic optical transients or 'supernova impostors' related to giant eruptions of luminous blue variables (LBVs), and we provide
Luminous Supernovae
TLDR
High-resolution spectroscopy of the supernova PTF 11kx is reported, which was detected on 26 January 2011 by the Palomar Transient Factory survey, and the data suggest a red giant star companion whose material got transferred to the white dwarf.
...
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