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But SNIa emit nuclear gamma-ray lines from $^{56}{\\rm Ni}\\to ^{56}{\\rm Co}\\to ^{56}{\\rm Fe}$ radioactive decays. These lines fall within the Fermi/GBM energy range, and the $^{56}{\\rm Ni}$ 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 M"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1904.04310","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-04-08T19:22:53Z","cross_cats_sorted":[],"title_canon_sha256":"7cfbbafc2a6eb331d554aebfd2077e3ebfa8d6ef8fa320b4a24f11b8ce6e4c5f","abstract_canon_sha256":"b79b8543ce13944fc150e24b0243451e54eac9d6e4fd54161c35df3335b3d2c2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:29.422207Z","signature_b64":"5jffAuqCY1gy1//KbG7gV3EhYJf2wvqcaLMJJCSHdnTy910Ca+v4Qpto8xsAfquHcmhM6xENH7kzDYFYKHkcDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34f0c3094b85a0a94b8d9f945f05ebd3f9fc915f38681dad8c6ed06697d7c1e4","last_reissued_at":"2026-05-17T23:48:29.421562Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:29.421562Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Using Gamma Ray Monitoring to Avoid Missing the Next Milky Way Type Ia Supernova","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Amy Yarleen Lien, Brian D. Fields, Xilu Wang","submitted_at":"2019-04-08T19:22:53Z","abstract_excerpt":"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 $^{56}{\\rm Ni}\\to ^{56}{\\rm Co}\\to ^{56}{\\rm Fe}$ radioactive decays. These lines fall within the Fermi/GBM energy range, and the $^{56}{\\rm Ni}$ 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. 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