| 词条 | NGC 1313 |
| 释义 |
| name = NGC 1313 | image = Phot-43a-06.jpg | image_size = 300px | caption = A Very Large Telescope (VLT) image of NGC 1313. Credit: ESO. | epoch = J2000.0 | constellation name = Reticulum | ra = {{RA|03|18|15.4}} [1] | dec = {{DEC|-66|29|50}} [1] | z = 0.001568 [1] | dist_ly = 12.886 Mly [1] | type = SB(s)d[1] | appmag_v = | size_v = 9.1 x 7.1 arcmin [1] | notes = | names = Topsy Turvy Galaxy, PGC 12286, ESO 082- G 011 }}NGC 1313 (also known as the Topsy Turvy Galaxy[2]) is a field galaxy[3] and a barred spiral galaxy[4] discovered by the Scottish astronomer James Dunlop on 27 September 1826.[5] It has a diameter of about 50,000 light-years, or about half the size of the Milky Way.[6] NGC 1313 lies within the Virgo Supercluster.[7] FeaturesNGC 1313 has a strikingly uneven shape and its axis of rotation is not exactly in its centre.[8] NGC 1313 also shows strong starburst activity[9] and associated supershells.[10] NGC 1313 is dominated by scattered patches of intense star formation, which gives the galaxy a rather ragged appearance.[11] The uneven shape, the ragged appearance and the strong starburst can all be explained by a galactic collision in the past.[12] However, NGC 1313 seems to be an isolated galaxy and has no direct neighbours. Therefore, it is not clear whether it has swallowed a small companion in its past.[2] Observations has shown that young, blue stars are scattered across the galaxy.[13] This is evidence of infant mortality in which the young open clusters quickly became gravitationally "unglued" and scattered their resident stars into the galaxy.[14] The galaxy bears some resemblance to the Magellanic Clouds[15] and hosts two ultraluminous X-ray sources, called NGC 1313 X-1 and X-2.[16] The former is a rare intermediate-mass black hole.[17][18] References1. ^1 2 3 4 5 {{cite web | title = NASA/IPAC Extragalactic Database | work = Results for NGC 1313 | url = http://nedwww.ipac.caltech.edu/ | accessdate = 8 Dec 2008}} 2. ^1 {{cite web |title=The Topsy-Turvy Galaxy NGC 1313 |publisher=ESO |url=https://www.eso.org/public/images/eso0643a/ |date=23 November 2006 }} 3. ^{{cite web |title=Taking a narrow view of lopsided galaxy |publisher=Gemini Observatory |url=http://cseligman.com/text/atlas/ngc13.htm#1313 |date=21 May 2010 |access-date=22 February 2016 }} 4. ^{{Cite APOD |title=The Star Clusters of NGC 1313 |date=7 August 2009 }} 5. ^{{cite web |author=Courtney Seligman |publisher=Celestial Atlas |title=NGC 1313 (= PGC 12286) |url=http://cseligman.com/text/atlas/ngc13.htm#1313 }} 6. ^{{Cite APOD |title=Unusual Starburst Galaxy NGC 1313 |date=30 March 2010 }} 7. ^{{Cite web|url=https://ned.ipac.caltech.edu/level5/Dev2/Dev9.html|title=Nearby Groups of Galaxies|website=ned.ipac.caltech.edu|access-date=2018-05-07}} 8. ^{{Cite journal |title= The structure of nearby groups of galaxies - Quantitative membership probabilities |author= Materne, J. |date= April 1979 |journal= Astronomy and Astrophysics |volume= 74 |number= 2 |pages= 235–243 |bibcode= 1979A&A....74..235M }} 9. ^{{cite web |title=VLT Image of Starburst Galaxy NGC 1313 |publisher=European Southern Observatory |url=https://www.eso.org/public/news/eso0643/ |date=23 November 2006 |access-date=22 February 2016 }} 10. ^{{cite journal |author=Suzuki |display-authors=etal |title=AKARI view of star formation in NGC 1313 |journal=Astronomy & Astrophysics |volume=554 |date=2013 |doi=10.1051/0004-6361/201220294 |bibcode=2013A&A...554A...8S |page=A8}} 11. ^{{cite web |title=NGC 1313 |publisher=Astrosurf |url=http://www.astrosurf.com/antilhue/ngc1313.htm |date=22 October 2006 }} 12. ^{{cite web |title=Tumult in NGC 1313 |publisher=Wissenschaft.de |url=http://www.wissenschaft.de/home/-/journal_content/56/12054/1021067/ |language=de |date=28 November 2006 }} 13. ^{{cite web |title=Hubble Sees Star Cluster "Infant Mortality" |publisher=NASA |url=http://hubblesite.org/newscenter/archive/releases/2007/05/image/c/ |date=10 January 2007 |access-date=23 February 2016 }} 14. ^{{cite journal |author=Anne Pellerin |author2=Martin Meyer |author3=Jason Harris|author4=Daniela Calzetti |title= Stellar Clusters in NGC 1313: Evidence of Infant Mortality |journal=The Astrophysical Journal |volume=653 |issue=2 |pages=L87–L90 |doi=10.1086/515437 |bibcode=2007ApJ...658L..87P |arxiv=astro-ph/0702547 |year=2007 }} 15. ^{{cite journal |first=Mercedes |last=Mollá |first2=Jean-René |last2=Roy |title=Modeling the Radial Abundance Distribution of the Transition Galaxy NGC 1313 |journal=The Astrophysical Journal |volume=514 |issue=2 |pages=781–786 |date=1 April 1999 |doi=10.1086/306982 |arxiv=astro-ph/9903129 |bibcode = 1999ApJ...514..781M }} 16. ^{{cite journal |author=Matteo Bachetti |display-authors=etal |title=The Ultraluminous X-Ray Sources NGC 1313 X-1 and X-2: A Broadband Study with NuSTAR and XMM-Newton |journal=The Astrophysical Journal |volume=778 |issue=2 |doi=10.1088/0004-637X/778/2/163 |arxiv=1310.0745 |bibcode = 2013ApJ...778..163B |page=163|year=2013 }} 17. ^{{cite journal |author= Dheeraj Pasham |display-authors= etal |title=Evidence for High-Frequency QPOs with a 3:2 Frequency Ratio from a 5000 Solar Mass Black Hole |journal=The Astrophysical Journal |volume=811 |issue=1 |doi=10.1088/2041-8205/811/1/L11 |arxiv=1601.02628 |date=2015 |bibcode = 2015ApJ...811L..11P |page=L11}} 18. ^{{cite web |title=Intermediate-Mass Black Hole 5,000 Times Mass of Sun |publisher=Sci-News.com |url=http://www.sci-news.com/astronomy/science-ngc1313x1-intermediate-mass-black-hole-03265.html |date=23 September 2015 |access-date=23 February 2016 }} 6 : Virgo Supercluster|NGC objects|Barred spiral galaxies|Field galaxies|Astronomical objects discovered in 1826|Principal Galaxies Catalogue objects |
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