| 词条 | NGC 1272 |
| 释义 |
| name = NGC 1272 | image = PanSTARRS NGC 1272.jpg | upright = 1.15 | caption = PanSTARRS image of NGC 1272. | epoch = J2000 | type = cD, E+[1] | ra = {{RA|03|19|21.3}}[1] | dec = {{DEC|41|29|26}}[1] | dist_ly = {{convert|69.2|Mpc|Mly|abbr=on|lk=on|order=flip}}[1] | group_cluster = Perseus Cluster | h_radial_v = 3815 km/s[1] | z = 0.012725[1] | appmag_v = 12.86[1] | size_v = 2.0 x 1.9[1] | constellation name = Perseus | half_light_radius_pc = ~{{convert|11|kpc|ly|abbr=on|lk=on|order=flip}} (estimated)[9] | names = CGCG 540-98, MCG 7-7-58, PGC 12384, UGC 2662[1] |size=~{{convert|60|kpc|ly|abbr=on|lk=on|order=flip}} (estimated)[1] }}NGC 1272 is a massive[2] elliptical galaxy[3] located about 230 million light-years away[4] in the constellation Perseus.[5] It was discovered by astronomer Heinrich d'Arrest on February 14, 1863.[6] NGC 1272 has an active nucleus and is the second brightest[2] member of the Perseus Cluster[7][6] after NGC 1275.[2] Radio jetsNGC 1272 has two radio jets which are powered by an AGN at the center of the galaxy. The jets are bent and have a radius of curvature of ~{{convert|2|kpc|ly|abbr=on|lk=on|order=flip}}. The morphology of the jets indicate that the jets are affected by ram-pressure stripping caused by the motion of NGC 1272 though the ICM of the Perseus Cluster. Due to the proximity of NGC 1272 to the center of the Perseus Cluster, the galaxy experiences ram-pressure on an order of magnitude larger than any other bent-double in the cluster and experiences stronger ram-pressure than other bent-doubles outside of the cluster.[2] ISM removalThe small bending radius of the jets requires NGC 1272 to have essentially no ISM at radii of ∼2 kpc and beyond. The ISM of NGC 1272 may have also been removed though ram-pressure stripping. However, ram-pressure alone cannot remove a fraction of the ISM from deep within the galaxy. Another process, such as AGN feedback in NGC 1272 must have initially removed a large fraction of the ISM before ram-pressure can become effective in removing the ISM.[2] Globular clustersIt is estimated that around 12,000 globular clusters surround NGC 1272.[8] SN 2016arcOn February 26, 2016 a type Ia supernova designated as SN 2016arc was discovered in NGC 1272.[9][10][11] See also
References1. ^1 2 3 4 5 6 7 8 9 {{cite web | title=NASA/IPAC Extragalactic Database | work=Results for NGC 1272 | url=http://nedwww.ipac.caltech.edu/ | accessdate=2018-06-25}} 2. ^1 2 3 4 5 {{Cite journal|last=McBride|first=James|last2=McCourt|first2=Michael|date=2014-06-09|title=Bent radio jets reveal a stripped interstellar medium in NGC 1272|journal=Monthly Notices of the Royal Astronomical Society|language=en|volume=442|issue=1|pages=838–843|doi=10.1093/mnras/stu945|issn=1365-2966|arxiv=1405.0314|bibcode=2014MNRAS.442..838M}} 3. ^{{Cite web|url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+1272&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES|title=Your NED Search Results|website=ned.ipac.caltech.edu|access-date=2018-06-26}} 4. ^{{Cite web|url=http://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+1272|title=NED Query Results for NGC 1272|website=ned.ipac.caltech.edu|language=en-US|access-date=2018-06-26}} 5. ^{{Cite web|url=http://spider.seds.org/ngc/revngcic.cgi?NGC1272|title=Revised NGC Data for NGC 1272|website=spider.seds.org|access-date=2018-06-26}} 6. ^1 {{Cite web|url=https://cseligman.com/text/atlas/ngc12a.htm#1272|title=New General Catalog Objects: NGC 1250 - 1299|last=|first=|date=|website=cseligman.com|language=en-US|archive-url=|archive-date=|dead-url=|access-date=2018-06-15}} 7. ^{{Cite journal|last=Brunzendorf|first=J.|last2=Meusinger|first2=H.|date=October 1, 1999|title=The galaxy cluster Abell 426 (Perseus). A catalogue of 660 galaxy positions, isophotal magnitudes and morphological types|journal=Astronomy and Astrophysics Supplement Series|language=en|volume=139|issue=1|pages=141–161|doi=10.1051/aas:1999111|issn=0365-0138|bibcode=1999A&AS..139..141B}} 8. ^{{Cite journal|last=Harris|first=William E.|last2=Mulholland|first2=Courtney J.|date=2017|title=Detection of the Stellar Intracluster Medium in Perseus (Abell 426)|url=http://stacks.iop.org/0004-637X/839/i=2/a=102|journal=The Astrophysical Journal|language=en|volume=839|issue=2|pages=102|doi=10.3847/1538-4357/aa6a59|issn=0004-637X|arxiv=1703.10204|bibcode=2017ApJ...839..102H}} 9. ^{{Cite web|url=http://rochesterastronomy.org/snimages/snhnameall.html|title=List of supernovae sorted by host name|last=|first=|date=|website=Bright Supernova - Archives|archive-url=|archive-date=|dead-url=|access-date=2018-06-26}} 10. ^{{Cite web|url=https://wis-tns.weizmann.ac.il/object/2016arc|title=SN 2016arc {{!}} Transient Name Server|website=wis-tns.weizmann.ac.il|language=en|access-date=2018-06-26}} 11. ^{{Cite web|url=https://sne.space/sne/2016arc/|title=2016arc - The Open Supernova Catalog|website=sne.space|language=en-US|access-date=2018-06-26}} External links{{WikiSky}}{{Ngc15}}{{Catalogs|NGC=1272|PGC=12384|UGC=2662}}{{Sky|03|19|21.3||41|29|26|190000000}} 9 : Perseus Cluster|Perseus (constellation)|Elliptical galaxies|Radio galaxies|NGC objects|Principal Galaxies Catalogue objects|UGC objects|Astronomical objects discovered in 1863|Discoveries by Heinrich d'Arrest |
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