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dc.contributor.authorShrestha, M.
dc.contributor.authorBulla, M.
dc.contributor.authorNativi, L.
dc.contributor.authorMarkin, I.
dc.contributor.authorRosswog, S.
dc.contributor.authorDietrich, T.
dc.date.accessioned2024-08-12T20:38:49Z
dc.date.available2024-08-12T20:38:49Z
dc.date.issued2023-05-25
dc.identifier.citationManisha Shrestha, Mattia Bulla, Lorenzo Nativi, Ivan Markin, Stephan Rosswog, Tim Dietrich, Impact of jets on kilonova photometric and polarimetric emission from binary neutron star mergers, Monthly Notices of the Royal Astronomical Society, Volume 523, Issue 2, August 2023, Pages 2990–3000, https://doi.org/10.1093/mnras/stad1583
dc.identifier.issn0035-8711
dc.identifier.doi10.1093/mnras/stad1583
dc.identifier.urihttp://hdl.handle.net/10150/674221
dc.description.abstractA merger of binary neutron stars creates heavy unstable elements whose radioactive decay produces a thermal emission known as a kilonova. In this paper, we predict the photometric and polarimetric behaviour of this emission by performing 3D Monte Carlo radiative transfer simulations. In particular, we choose three hydrodynamical models for merger ejecta, two including jets with different luminosities and one without a jet structure, to help decipher the impact of jets on the light curve and polarimetric behaviour. In terms of photometry, we find distinct colour evolutions across the three models. Models without a jet show the highest variation in light curves for different viewing angles. In contrast to previous studies, we find models with a jet to produce fainter kilonovae when viewed from orientations close to the jet axis, compared to a model without a jet. In terms of polarimetry, we predict relatively low levels (≲0.3–0.4 per cent) at all orientations that, however, remain non-negligible until a few days after the merger and longer than previously found. Despite the low levels, we find that the presence of a jet enhances the degree of polarization at wavelengths ranging from 0.25 to 2.5μm, an effect that is found to increase with the jet luminosity. Thus, future photometric and polarimetric campaigns should observe kilonovae in blue and red filters for a few days after the merger to help constrain the properties of the ejecta (e.g. composition) and jet. © 2023 The Author(s)
dc.language.isoen
dc.publisherOxford University Press
dc.rights© 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subject(transients:) neutron star mergers
dc.subjectgravitational waves
dc.subjectradiative transfer
dc.subjecttechniques: photometric
dc.subjecttechniques: polarimetric
dc.titleImpact of jets on kilonova photometric and polarimetric emission from binary neutron star mergers
dc.typeArticle
dc.typetext
dc.contributor.departmentSteward Observatory, University of Arizona
dc.identifier.journalMonthly Notices of the Royal Astronomical Society
dc.description.noteImmediate access
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.
dc.eprint.versionFinal Published Version
dc.source.journaltitleMonthly Notices of the Royal Astronomical Society
refterms.dateFOA2024-08-12T20:38:49Z


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