[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki41\/ngc-4457-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki41\/ngc-4457-wikipedia\/","headline":"NGC 4457 – Wikipedia","name":"NGC 4457 – Wikipedia","description":"before-content-x4 From Wikipedia, the free encyclopedia after-content-x4 Intermediate spiral galaxy in the constellation of Virgo NGC 4457 is an intermediate","datePublished":"2022-11-21","dateModified":"2022-11-21","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki41\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki41\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/upload.wikimedia.org\/wikipedia\/en\/thumb\/4\/4a\/Commons-logo.svg\/30px-Commons-logo.svg.png","url":"https:\/\/upload.wikimedia.org\/wikipedia\/en\/thumb\/4\/4a\/Commons-logo.svg\/30px-Commons-logo.svg.png","height":"40","width":"30"},"url":"https:\/\/wiki.edu.vn\/en\/wiki41\/ngc-4457-wikipedia\/","wordCount":3924,"articleBody":"     (adsbygoogle = window.adsbygoogle || []).push({});before-content-x4From Wikipedia, the free encyclopedia       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4Intermediate spiral galaxy in the constellation of VirgoNGC 4457 is an intermediate spiral galaxy located about 55 million light-years away[2] in the constellation of Virgo.[3] It is also classified as a LINER galaxy, a class of active galaxy defined by their spectral line emissions.[4][2] NGC 4457 Is inclined by about 33\u00b0.[5] It was discovered by astronomer William Herschel on February 23, 1784.[6] Despite being listed in the Virgo Cluster Catalog as VCC 1145,[7] NGC 4457 is a member of the Virgo II Groups[8][9][10] which form an extension of the Virgo cluster.[8][11]       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4NGC 4457 may have had a recent minor merger with another galaxy.[12]On July 1 2020, an astronomical transient was discovered in NGC 4457 by  astronomer Kiochi Itagaki and confirmed by ASAS-SN. Spectroscopic classification determined the object to be a Type Ia Supernova, SN 2020nvb.[13]Table of Contents       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4Physical characteristics[edit]Truncated disk[edit]See also[edit]References[edit]External links[edit]Physical characteristics[edit]NGC 4457 has a broad oval zone containing an inner spiral which is defined mainly by two fairly open arms. There is a well-defined outer ring that is completely detached from the inner regions of the galaxy.[14]Truncated disk[edit]NGC 4457 has a severely reduced amount of star-formation in its disk while its inner regions have a normalized rate of massive star formation.[14] This may have been caused by a recent interaction of the gas in the galaxy with the gas in the surrounding Virgo Cluster,[15] causing the gas to be stripped away in an effect known as ram-pressure stripping.[16]See also[edit]References[edit]^ a b c d e f g h “NASA\/IPAC Extragalactic Database”. Results for NGC 4457. Retrieved 2017-08-18.^ a b “Your NED Search Results”. ned.ipac.caltech.edu. Retrieved 2017-08-19.^ Rojas, Sebasti\u00e1n Garc\u00eda. “Galaxy NGC 4457 – Galaxy in Virgo Constellation \u00b7 Deep Sky Objects Browser”. DSO Browser. Retrieved 2017-08-19.^ TERASHIMA, YUICHI; HO, LUIS C.; PTAK, ANDREW F.; MUSHOTZKY, RICHARD F.; SERLEMITSOS, PETER J.; YAQOOB, TAHIR; KUNIEDA, HIDEYO (20 April 2000). “ASCA Observations of “Type 2″ LINERs: Evidence for a Stellar Source of Ionization”. The Astrophysical Journal. 533 (2): 729\u2013743. arXiv:astro-ph\/9911340. Bibcode:2000ApJ…533..729T. doi:10.1086\/308690. S2CID\u00a014130773.^ Vollmer, B.; Soida, M.; Beck, R.; Chung, A.; Urbanik, M.; Chyzy, K.T.; Otmianowska-Mazur, K.; Kenney, J.D.P. (4 April 2013). “Large-scale radio continuum properties of 19 Virgo cluster galaxies\u22c6 The influence of tidal interactions, ram pressure stripping, and accreting gas envelopes”. Astronomy & Astrophysics. 553: 38. arXiv:1304.1279. Bibcode:2013A&A…553A.116V. doi:10.1051\/0004-6361\/201321163. S2CID\u00a0119190841.^ “New General Catalog Objects: NGC 4450 – 4499”. cseligman.com. Retrieved 2017-08-18.^ Binggeli, B.; Sandage, A.; Tammann, G. A. (September 1985). “Studies of the Virgo Cluster. II – A catalog of 2096 galaxies in the Virgo Cluster area. V – Luminosity functions of Virgo Cluster galaxies”. The Astronomical Journal. 90: 1681. Bibcode:1985AJ…..90.1681B. doi:10.1086\/113874. ISSN\u00a00004-6256.^ a b Tully, R. B. (June 1982). “The Local Supercluster”. The Astrophysical Journal. 257: 389\u2013422. Bibcode:1982ApJ…257..389T. doi:10.1086\/159999. ISSN\u00a00004-637X.^ Koopmann, Rebecca A.; Kenney, Jeffrey D. P.; Young, Judith (2001). “An Atlas of H\u03b1 and R Images and Radial Profiles of 63 Bright Virgo Cluster Spiral Galaxies”. The Astrophysical Journal Supplement Series. 135 (2): 125\u2013154. arXiv:astro-ph\/0106335. Bibcode:2001ApJS..135..125K. doi:10.1086\/323532. ISSN\u00a00067-0049. S2CID\u00a014603109.^ Binggeli, B.; Popescu, C. C; Tammann, G. A. (April 11, 1993). “The kinematics of the Virgo cluster revisited” (PDF). Astronomy and Astrophysics Supplement Series. 98: 275\u2013296. Bibcode:1993A&AS…98..275B.^ “The Virgo II Groups”. www.atlasoftheuniverse.com. Retrieved 2018-04-25.^ Vollmer, B.; Soida, M.; Beck, R.; Chung, A.; Urbanik, M.; Chy\u017cy, K. T.; Otmianowska-Mazur, K.; Kenney, J. D. P. (May 2013). “Large-scale radio continuum properties of 19 Virgo cluster galaxies”. Astronomy & Astrophysics. 553: A116. arXiv:1304.1279. Bibcode:2013A&A…553A.116V. doi:10.1051\/0004-6361\/201321163. ISSN\u00a00004-6361. S2CID\u00a0119190841.^ SN 2020nvb TNS^ a b “NGC 4457 – (R)SAB(s)a”. The de Vaucouleurs Atlas of Galaxies. Retrieved 2017-08-19.^ Cortes, Juan R.; Kenney, Jeffrey D. P.; Hardy, Eduardo (24 December 2014). “Integral-Field Stellar and Ionized Gas Kinematics of Peculiar Virgo Cluster Spiral Galaxies”. The Astrophysical Journal Supplement Series. 216 (1): 9. arXiv:1411.3387. Bibcode:2015ApJS..216….9C. doi:10.1088\/0067-0049\/216\/1\/9. S2CID\u00a053658261.^ “Robert A. Piontek — Ram Pressure Stripping”. www.aip.de. Archived from the original on 2016-10-16. Retrieved 2017-08-19.External links[edit]Wikimedia Commons has media related to NGC 4457.     (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4"},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki41\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki41\/ngc-4457-wikipedia\/#breadcrumbitem","name":"NGC 4457 – Wikipedia"}}]}]