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(2009) with using MLCS17 light curve fitter, together with the Baryon Acoustic Oscillation(BAO) and strong gravitational lenses(SGL), we investigate the constraints on the dark energy equation-of-state parameter $w$ in the flat universe, especially for the time-varying case $w(z)=w_0+w_zz/(1+z)$. The constraints from SNe data alone are found to be: (a) $(\\Omega_M, w)=(0.358, -1.09)$ as the best-fit results; (b) $(w_0, w_z)=(-0.73^{+0.23}_{-0.97}, 0.84^{+1.66}_{-10.34})$ for the two parameters in the time-varying case after marginalizing"},"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":"1008.0930","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-08-05T09:12:00Z","cross_cats_sorted":[],"title_canon_sha256":"46498d2fae4c3d2a84b12a850d157d1bd0c5fed4702d2a896f427aef91aa6169","abstract_canon_sha256":"49010186eeacd80ffaa8d6db569b2ce394d49d50dca6d7128e1fd04d0d011bf6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:59.039742Z","signature_b64":"lJvKHqJRsxPYb0zcJNCtbk0deUjevs75uPSdND5Z3hAb5SijwW8/K5MVfykxJ4DqRikxjBf79WRvi6FfCKA3AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a3b0a83fdab54684b35ae7264692b66b9a4106b66a3d706be069ed9e8d7274f7","last_reissued_at":"2026-05-18T02:05:59.039015Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:59.039015Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Time-Varying Dark Energy Constraints From the Latest SN Ia, BAO and SGL","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Qing-Jun Zhang, Yue-Liang Wu","submitted_at":"2010-08-05T09:12:00Z","abstract_excerpt":"Based on the latest SNe Ia data provided by Hicken et al. 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