Interacting supernovae as high-energy multimessenger transients

Murase, Kohta

doi:10.1103/physrevd.109.103020

Phys. Rev. D

2024

DOI: 10.1103/physrevd.109.103020

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Interacting supernovae as high-energy multimessenger transients

Kohta Murase

Abstract: Multiwavelength observations have revealed that dense, confined circumstellar material (CCSM) commonly exists in the vicinity of supernova (SN) progenitors, suggesting enhanced mass losses years to centuries before their core collapse. Interacting SNe, which are powered or aided by interaction with the CCSM, are considered to be promising high-energy multimessenger transient sources. We present detailed results of broadband electromagnetic emission, following the time-dependent model proposed in the previous w… Show more

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2024

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Cited by 2 publications

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Progenitor and explosion properties of SN 2023ixf estimated based on a light-curve model grid of Type II supernovae

Moriya,

Singh

2024

Publications of the Astronomical Society of Japan

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We estimate the progenitor and explosion properties of the nearby Type II SN 2023ixf using a synthetic model grid of Type II supernova light curves. By comparing the light curves of SN 2023ixf with the pre-existing grid of Type II supernovae containing about 228000 models with different combinations of the progenitor and explosion properties, we obtain the $\chi ^2$ value for every model and evaluate the properties of the models providing small values of $\chi ^2$. We found that the light-curve models with a progenitor zero-age main-sequence mass of $10\, {M}_\odot$, explosion energy of $(2\\!-\\!3) \times 10^{51}\:\mbox{erg}$, $^{56}\mbox{Ni}$ mass of 0.04–$0.06\, {M}_\odot$, mass-loss rate of $10^{-3}$–$10^{-2}\, {M}_\odot \:\mbox{yr}^{-1}$ with wind velocity of $10\:\mbox{km}\:\mbox{s}^{-1}$, and dense, confined circumstellar matter radius of $(6\\!-\\!10) \times 10^{14}\:\mbox{cm}$ match well to the observed light curves of SN 2023ixf. The photospheric velocity evolution of these models is also consistent with the observed velocity evolution. We note that the progenitor mass estimate could be affected by the adopted progenitor models. Although our parameter estimation is based on a pre-existing model grid and we do not perform any additional computations, the estimated parameters are consistent with those obtained by the detailed modeling of SN 2023ixf previously reported. This result shows that comparing the pre-existing model grid is a reasonable way to obtain a rough estimate for the properties of Type II supernovae. This simple way to estimate the properties of Type II supernovae will be essential in the Vera C. Rubin Observatory’s Legacy Survey of Space and Time (LSST) era when thousands of Type II supernovae are expected to be discovered yearly.

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Progenitor and explosion properties of SN 2023ixf estimated based on a light-curve model grid of Type II supernovae

Moriya,

Singh

2024

Publications of the Astronomical Society of Japan

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Multi-Messenger Connection in High-Energy Neutrino Astronomy

Sharma

2024

Universe

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Low fluxes of astrophysical neutrinos at TeV energies, and the overwhelming background of atmospheric neutrinos below that, render the current paradigm of neutrino astronomy a severely statistics-limited one. While many hints have emerged, all the evidence gathered by IceCube and ANTARES, over the course of almost a decade and a half of operation, has fallen short of providing any conclusive answer to the puzzle of the origin of high-energy cosmic rays and neutrinos. The advancement of the field is thus closely associated with not only the neutrino observatories coming online in the next few years, but also on the coordinated efforts of the EM, GW and cosmic ray communities to develop dedicated channels and infrastructure that allow for the swift and comprehensive multi-messenger follow-up of relevant events detected in any of these sectors. This paper highlights the strides that have been already taken in that direction and the fruits that they have borne, as well as the challenges that lie ahead.

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Interacting supernovae as high-energy multimessenger transients

Cited by 2 publications

References 134 publications

Progenitor and explosion properties of SN 2023ixf estimated based on a light-curve model grid of Type II supernovae

Progenitor and explosion properties of SN 2023ixf estimated based on a light-curve model grid of Type II supernovae

Multi-Messenger Connection in High-Energy Neutrino Astronomy

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