Using Gamma Ray Monitoring to Avoid Missing the Next Milky Way Type Ia Supernova
| dc.contributor.author | Wang, Xilu | |
| dc.contributor.author | Fields, Brian D. | |
| dc.contributor.author | Lien, Amy Yarleen | |
| dc.date.accessioned | 2019-05-09T17:14:12Z | |
| dc.date.available | 2019-05-09T17:14:12Z | |
| dc.date.issued | 2019-04-10 | |
| dc.description.abstract | A Milky-Way Type Ia Supernova (SNIa) could be unidentified or even initially unnoticed, being dim in radio, X-rays, and neutrinos, and suffering large optical/IR extinction in the Galactic plane. But SNIa emit nuclear gamma-ray lines from ⁵⁶Ni ->⁵⁶ Co -> ⁵⁶ Fe radioactive decays. These lines fall within the Fermi/GBM energy range, and the ⁵⁶ Ni 158 keV line is detectable by Swift/BAT. Both instruments frequently monitor the Galactic plane, which is transparent to gamma rays. Thus GBM and BAT are ideal Galactic SNIa early warning systems. We simulate SNIa MeV light curves and spectra to show that GBM and BAT could confirm a Galactic SNIa explosion, followed by Swift localization and observation in X-rays and UVOIR band. The time of detection depends sensitively on the ⁵⁶ Ni distribution, and can be as early as a few days if >~10% of the ⁵⁶ Ni is present in the surface as suggested by SN2014J gamma data. | en_US |
| dc.description.sponsorship | This work was supported in part by the NASA Swift GI program, grant NNX16AN81G. This work also benefited from discussions at the 2018 Frontiers in Nuclear Astrophysics Conference supported by the National Science Foundation under Grant No. PHY-1430152 (JINA Center for the Evolution of the Elements). | en_US |
| dc.description.uri | https://arxiv.org/pdf/1904.04310.pdf | en_US |
| dc.format.extent | 9 pages | en_US |
| dc.genre | journal articles preprints | en_US |
| dc.identifier | doi:10.13016/m2nsvw-oj4b | |
| dc.identifier.citation | Xilu Wang, Brian D. Fields, Amy Yarleen Lien, Using Gamma Ray Monitoring to Avoid Missing the Next Milky Way Type Ia Supernova, 2019, https://arxiv.org/pdf/1904.04310.pdf | en_US |
| dc.identifier.uri | http://hdl.handle.net/11603/13818 | |
| dc.language.iso | en_US | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II) | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.subject | gamma-rays: stars | en_US |
| dc.subject | (stars:) supernovae: general | en_US |
| dc.title | Using Gamma Ray Monitoring to Avoid Missing the Next Milky Way Type Ia Supernova | en_US |
| dc.type | Text | en_US |