TY - JOUR
T1 - Interacting supernovae as high-energy multimessenger transients
AU - Murase, Kohta
N1 - Publisher Copyright:
© 2024 authors. Published by the American Physical Society.
PY - 2024/5/15
Y1 - 2024/5/15
N2 - 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 work on high-energy SN neutrinos [K. Murase, New prospects for detecting high-energy neutrinos from nearby supernovae, Phys. Rev. D 97, 081301 (2018)PRVDAQ2470-001010.1103/PhysRevD.97.081301]. We investigate electromagnetic cascades in the presence of Coulomb losses, including inverse-Compton and synchrotron components that significantly contribute to MeV and high-frequency radio bands, respectively. We also discuss the application to SN 2023ixf.
AB - 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 work on high-energy SN neutrinos [K. Murase, New prospects for detecting high-energy neutrinos from nearby supernovae, Phys. Rev. D 97, 081301 (2018)PRVDAQ2470-001010.1103/PhysRevD.97.081301]. We investigate electromagnetic cascades in the presence of Coulomb losses, including inverse-Compton and synchrotron components that significantly contribute to MeV and high-frequency radio bands, respectively. We also discuss the application to SN 2023ixf.
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U2 - 10.1103/PhysRevD.109.103020
DO - 10.1103/PhysRevD.109.103020
M3 - Article
AN - SCOPUS:85193038593
SN - 2470-0010
VL - 109
JO - Physical Review D
JF - Physical Review D
IS - 10
M1 - 103020
ER -