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To explore how mass and environment shape spiral disks, we selected galaxies with rotational velocities between 69 < Vrot < 245 km/sec, and two with unusual morphologies. We find a wide diversity of disk structure. Of the fast-rotating (Vrot > 150 km/sec) galaxies, only NGC 4013 has the super-thin+thin+thick nested disk structure seen in NGC 891 and the Milky Way, albeit with decreased oblateness, while NGC 1055, a disturbed massive spiral gal"},"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":"1409.6727","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-09-23T20:00:13Z","cross_cats_sorted":[],"title_canon_sha256":"6b440e597a3dcd52acd9489cf3046e91e676d8626d0722f3c80dc77965661c09","abstract_canon_sha256":"a85f2cd59afb12c0f4a982b120c3df51b9639c169864cffd7e6fa9801e8bfd23"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:57.482199Z","signature_b64":"ZZqtiJy+Y0+Wh6rMJVYODZBwpX+WMdfUYqfPDXKafGBO7EaaIgThm4AgfgxlBwHhG0eQzzAluxhESh6oJObfCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8b3d22fe7199df8db8a06a9e97210bbf41b28cd50a1ba58c3c3fe584afe1ab4e","last_reissued_at":"2026-05-18T01:41:57.481653Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:57.481653Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Near-Infrared Structure of Fast and Slow Rotating Disk Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrew Schechtman-Rook, Matthew A. 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