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The intrinsic decline rate parameter, $\\Delta m_{15}(B)_\\text{true}$ is 1.27 $\\pm$ 0.05, and $B$-band absolute magnitude at maximum $M_{B}^{\\text{max}}$ is $-$19.31 $\\pm$ 0.25 mag. The host galaxy NGC 5054 is found to exhibit anomalous extinction with very low value of $R_V$ = 1.41 $\\pm$ 0.06 in the direction of SN 2004ab. Peak bolometric luminosity is derived as $\\log L_\\text{bol}^\\text{max}$ = 43.10 $\\"},"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":"1711.00628","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-11-02T06:26:57Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"b5cd08b12f1d7734ba33daa85661b7ba3df1f881f259d3751577a972e8c32f2a","abstract_canon_sha256":"e9e5e2d8cc2cf32e6b44f42ce07a985e2c231e17d2f651523b6aaa02c08f20bc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:27:18.369705Z","signature_b64":"9P7kzYOFFp5rguGU0lB1cGwuhQJ0nWTlG6Mrwu1dV6EUTK+DsN7u+YFlX0b/t1HgONddkjgu9+zFCL587QN5BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"906e6bf5fe19206ca0d107eca94f16d46d8f1e65ff08d66a3410892c77ffaaf2","last_reissued_at":"2026-05-18T00:27:18.369269Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:27:18.369269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Highly reddened type Ia supernova SN 2004ab: another case of anomalous extinction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"D. K. Sahu, G. C. Anupama, N. K. Chakradhari, T.P. Prabhu","submitted_at":"2017-11-02T06:26:57Z","abstract_excerpt":"We present optical photometric and spectroscopic results of supernova SN 2004ab, a highly reddened normal type Ia supernova. The total reddening is estimated as $E(B-V)$ = 1.70 $\\pm$ 0.05 mag. The intrinsic decline rate parameter, $\\Delta m_{15}(B)_\\text{true}$ is 1.27 $\\pm$ 0.05, and $B$-band absolute magnitude at maximum $M_{B}^{\\text{max}}$ is $-$19.31 $\\pm$ 0.25 mag. The host galaxy NGC 5054 is found to exhibit anomalous extinction with very low value of $R_V$ = 1.41 $\\pm$ 0.06 in the direction of SN 2004ab. 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