NGC 523, also known as Arp 158, from the ARP catalog is a spiral galaxy located in the constellation Andromeda. It was discovered separately by William...
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emission from the Crab pulsar". Astrophys. J. 683 (1): L45 – L50. arXiv:0805.4758. Bibcode:2008ApJ...683L..45A. doi:10.1086/591526. S2CID 250871270. And erratum...
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Anomalies?". Astrophysical Journal Supplement Series. 192 (2): 17. arXiv:1001.4758. Bibcode:2011ApJS..192...17B. doi:10.1088/0067-0049/192/2/17. S2CID 53521938...
151 KB (15,097 words) - 15:17, 30 January 2025