“NGC 5253”的意思、由来-开放百科全书

NGC 5253 is located within the M83 Subgroup of the Centaurus A/M83 Group, a relatively nearby galaxy group that includes the radio galaxy Centaurus A and the spiral galaxy M83 (the Southern Pinwheel Galaxy).

NGC 5253 is considered a dwarf starburst galaxy^[5] and also a blue compact galaxy.^[6] Supernova 1972E, the second-brightest recent supernova visible from Earth (peak visual magnitude of 8.5, fainter only than SN 1987A in the 20th century), occurred in this galaxy.^[7]^[8] Another supernova, SN 1895b, also has been recorded in the galaxy.^[9]

NGC 5352 contains a giant dust cloud, hiding a cluster of more than one million stars, among them up to 7,000 O stars. The super star cluster is 3 million years old and has a total luminosity of more than one billion suns. The amount of dust surrounding the stars is extraordinary — approximately 15,000 times the mass of our sun in elements such as carbon and oxygen. The dust cloud, called Cloud D is also very efficient in creating new stars. How much of a gas cloud gets turned into stars varies in different parts of the universe. In the Milky Way, the rate for gas clouds the size of Cloud D is less than 5 percent. In Cloud D, the rate is at least 10 times higher, and perhaps much more. In coming years, the cloud could be destroyed by stars that become supernovae, which would spin all of the gas and elements created by the stars into interstellar space.^[10]^[11]

References

1. ^{{cite news|title=A Peculiar Compact Blue Dwarf Galaxy|url=http://www.spacetelescope.org/images/potw1248a/|accessdate=26 November 2012|newspaper=ESA/Hubble Picture of the Week}}
2. ^¹²³⁴⁵⁶⁷⁸{{cite web | title=NASA/IPAC Extragalactic Database | work=Results for NGC 5253 | url=http://nedwww.ipac.caltech.edu/ | accessdate=2006-11-10}}
3. ^{{cite journal | author=Ferrarese, Laura | display-authors=4 | author2=Ford, Holland C. | author3=Huchra, John | author4=Kennicutt, Robert C., Jr. | author5=Mould, Jeremy R. | author6=Sakai, Shoko | author7=Freedman, Wendy L. | author8=Stetson, Peter B. | author9=Madore, Barry F. | author10=Gibson, Brad K. | author11=Graham, John A. | author12=Hughes, Shaun M. | author13=Illingworth, Garth D. | author14=Kelson, Daniel D. | author15=Macri, Lucas | author16=Sebo, Kim | author17=Silbermann, N. A. | title=A Database of Cepheid Distance Moduli and Tip of the Red Giant Branch, Globular Cluster Luminosity Function, Planetary Nebula Luminosity Function, and Surface Brightness Fluctuation Data Useful for Distance Determinations | journal=The Astrophysical Journal Supplement Series | date=2000 | volume=128 | issue=2 | pages=431–459 | bibcode=2000ApJS..128..431F | doi=10.1086/313391 |arxiv = astro-ph/9910501}}
4. ^The scientific papers of Sir William Herschel by J. L. E. Dreyer. Royal Astronomical Society London 1912.
5. ^{{Cite journal |author= Jordan Zastrow |author2= M.S. Oey |author3= Sylvain Veilleux |author4= Michael McDonald |author5=Crystal L. Martin |title= An Ionization Cone in the Dwarf Starburst Galaxy NGC 5253 |journal= The Astrophysical Journal |volume= 741 |issue= 1 |date=2011 |page= (page needed) |arxiv= 1109.6360 |bibcode= 2011ApJ...741L..17Z |doi= 10.1088/2041-8205/741/1/L17 }}
6. ^{{cite web |title=Hubble Spots a Peculiar Compact Blue Dwarf Galaxy |publisher=NASA |url=http://www.nasa.gov/mission_pages/hubble/science/ngc5253.html |date=30 November 2012 |archiveurl= https://web.archive.org/web/20140911070157/http://www.nasa.gov/mission_pages/hubble/science/ngc5253.html |archivedate= 11 September 2014 }}
7. ^{{cite journal | author=I. D. Karachentsev | display-authors=4 | author2=M. E. Sharina | author3=A. E. Dolphin | author4=E. K. Grebel | author5=D. Geisler | author6=P. Guhathakurta | author7=P. W. Hodge | author8=V. E. Karachetseva | author9=A. Sarajedini | author10=P. Seitzer | title=New distances to galaxies in the Centaurus A group | journal=Astronomy and Astrophysics | date=2002 | volume=385 | issue=1 | pages=21–31 | bibcode=2002A&A...385...21K | doi=10.1051/0004-6361:20020042}}
8. ^{{cite journal | author=I. D. Karachentsev | title=The Local Group and Other Neighboring Galaxy Groups | journal=Astronomical Journal | date=2005 | volume=129 | issue=1 | pages=178–188 | bibcode=2005AJ....129..178K | doi=10.1086/426368|arxiv = astro-ph/0410065 }}
9. ^{{cite journal | title=Supernovae discovered since 1885 | last1=Kowal | first1=C. T. |last2=Sargent | first2=W. L. W. | journal=Astronomical Journal | volume=76 | pages=756–764 | bibcode=1971AJ.....76..756K | date=Nov 1971|doi = 10.1086/111193 }}
10. ^{{cite press release |author=Stuart Wolpert |title=More than a million stars are forming in a mysterious dusty gas cloud in a nearby galaxy |publisher=UCLA |url=http://newsroom.ucla.edu/releases/more-than-a-million-stars-are-forming-in-a-mysterious-dusty-gas-cloud-in-a-nearby-galaxy |date=March 18, 2015 |archiveurl=https://web.archive.org/web/20150319171217/http://newsroom.ucla.edu/releases/more-than-a-million-stars-are-forming-in-a-mysterious-dusty-gas-cloud-in-a-nearby-galaxy |archivedate=March 19, 2015 }}
11. ^{{cite journal |display-authors=4 |author=J. L. Turner |author2=S. C. Beck |author3=D. J. Benford|author4=S. M. Consiglio |author5=P. T. P. Ho|author6=A. Kovács |author7=D. S. Meier |author8=J.-H. Zhao. |title=Highly efficient star formation in NGC 5253 possibly from stream-fed accretion. |journal=Nature |date=2015 |volume=519 |issue=7543 |pages=331–333 |doi=10.1038/nature14218 |arxiv=1503.05254 |pmid=25788096|bibcode = 2015Natur.519..331T }}

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