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dc.contributor.authorWesternacher-Schneider, John Ryan
dc.contributor.authorO’Connor, Evan
dc.contributor.authorO’Sullivan, Erin
dc.contributor.authorTamborra, Irene
dc.contributor.authorWu, Meng-Ru
dc.contributor.authorCouch, Sean M.
dc.contributor.authorMalmenbeck, Felix
dc.date.accessioned2020-01-31T20:24:59Z
dc.date.available2020-01-31T20:24:59Z
dc.date.issued2019-12-11
dc.identifier.citationWesternacher-Schneider, J. R., O’Connor, E., O’Sullivan, E., Tamborra, I., Wu, M.-R., Couch, S. M., & Malmenbeck, F. (2019). Multimessenger asteroseismology of core-collapse supernovae. Physical Review D, 100(12). https://doi.org/10.1103/physrevd.100.123009 ‌en_US
dc.identifier.issn2470-0010
dc.identifier.doi10.1103/physrevd.100.123009
dc.identifier.urihttp://hdl.handle.net/10150/636811
dc.description.abstractWe investigate correlated gravitational wave and neutrino signals from rotating core-collapse supernovae with simulations. Using an improved mode identification procedure based on mode function matching, we show that a linear quadrupolar mode of the core produces a dual imprint on gravitational waves and neutrinos in the early post-bounce phase of the supernova. The angular harmonics of the neutrino emission are consistent with the mode energy around the neutrinospheres, which points to a mechanism for the imprint on neutrinos. Thus, neutrinos carry information about the mode amplitude in the outer region of the core, whereas gravitational waves probe deeper in. We also find that the best-fit mode function has a frequency bounded above by similar to 420 Hz, and yet the mode's frequency in our simulations is similar to 15% higher, due to the use of Newtonian hydrodynamics and a widely used pseudo-Newtonian gravity approximation. This overestimation is particularly important for the analysis of gravitational wave detectability and asteroseismology, pointing to limitations of pseudo-Newtonian approaches for these purposes, possibly even resulting in excitation of incorrect modes. In addition, mode frequency matching (as opposed to mode function matching) could be resulting in mode misidentification in recent work. Lastly, we evaluate the prospects of a multimessenger detection of the mode using current technology. The detection of the imprint on neutrinos is most challenging, with a maximum detection distance of similar to 1 kpc using the IceCube Neutrino Observatory. The maximum distance for detecting the complementary gravitational wave imprint is similar to 5 kpc using Advanced LIGO at design sensitivity.en_US
dc.description.sponsorshipDanish National Research FoundationDanmarks Grundforskningsfond [DNRF132]; Ontario Graduate ScholarshipOntario Graduate Scholarship; Swedish Research CouncilSwedish Research Council [2018-04575]; Villum Foundation [13164]; Deutsche ForschungsgemeinschaftGerman Research Foundation (DFG) [Sonderforschungsbereich SFB 1258]; Ministry of Science and Technology, TaiwanMinistry of Science and Technology, Taiwan [107-2119-M-001-038]; Physics Division, National Center of Theoretical Science of Taiwan; U.S. Department of Energy, Office of Science, Office of Nuclear PhysicsUnited States Department of Energy (DOE) [DE-SC0015904, DE-SC0017955]en_US
dc.language.isoenen_US
dc.publisherAMER PHYSICAL SOCen_US
dc.rightsCopyright © 2019 American Physical Society.en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleMultimessenger asteroseismology of core-collapse supernovaeen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Dept Astron Steward Observen_US
dc.identifier.journalPHYSICAL REVIEW Den_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.volume100
dc.source.issue12
refterms.dateFOA2020-01-31T20:25:00Z


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