NGC 4603
{{Short description|Galaxy in the constellation Centaurus}}
{{Infobox Galaxy
| name = NGC 4603
| image = NGC 4603.jpg
| image_size = 280px
| caption = A Hubble Space Telescope (HST) image of NGC 4603.
| epoch = J2000
| type = SA(s)c
| dist_ly = {{nowrap|106.8 Mly (32.71 Mpc)}}
| z =
| h_radial_v = +{{val|2561}} km/s
| size_v = {{nowrap|3′.4 × 2′.5}}
| size = 100,000 ly (diameter)
| constellation name = Centaurus
| notes =
| names = PGC 42510
}}
NGC 4603 is a spiral galaxy located about 107 million light years away in the constellation Centaurus. It is a member of the Centaurus Cluster of galaxies, belonging to the section designated "Cen30". The morphological classification is SA(s)c, which indicates it is a pure spiral galaxy with relatively loosely wound arms.
During 1999, this galaxy was the subject of an extended study using the Hubble Space Telescope to locate Cepheid variable stars. A total of {{val|43|7}} were found, and the measurement of their periodicity gave a net distance estimate of {{val|108.7|+5.5|-4.9|u=Mly}} ({{val|33.3|+1.7|-1.5|u=Mpc}}). This is consistent with the distance estimate determined through redshift measurements. As of the time of this study, NGC 4603 was the most distant galaxy for which a distance estimate had been made using Cepheid variable.
On May 21, 2008, supernova SN 2008cn was discovered at a position 23.″2 north and 4.″7 east of the galaxy center. It was determined to be a high-luminosity Type II-P supernova, with a progenitor tentatively identified as a red supergiant with 15 ± 2 solar masses. Based upon the yellowish color, it may have been a member of a binary star system.
References
{{reflist|refs=
| title=NASA/IPAC Extragalactic Database
| work=Results for NGC 4603
| url=http://nedwww.ipac.caltech.edu/
| access-date=2007-04-01
}}
| first1 = Ronald J.
| last1 = Buta
| first2 = Harold G.
| last2 = Corwin
| first3 = Stephen C.
| last3 = Odewahn
| display-authors = 1
| title = Atlas of Galaxies
| publisher = Cambridge University Press
| pages = 13–17
| date = 2007
| isbn = 978-0521820486
| url = https://books.google.com/books?id=g-P7dCbB5MEC&pg=PA16
| postscript= .
}}
| last1 = Crook | first1 = Aidan C.
| last2 = Huchra | first2 = John P.
| last3 = Martimbeau | first3 = Nathalie
| last4 = Masters | first4 = Karen L.
| last5 = Jarrett | first5 = Tom
| last6 = Macri | first6 = Lucas M.
| display-authors = 1
| title = Groups of Galaxies in the Two Micron All Sky Redshift Survey
| journal = The Astrophysical Journal
| volume = 655
| issue = 2
| pages = 790–813
|date=February 2007
| doi = 10.1086/510201
| bibcode = 2007ApJ...655..790C
| arxiv = astro-ph/0610732
| s2cid = 11672751
| postscript = .
}}
| last1 = Martínez-García
| first1= Eric E.
| last2 = González-Lópezlira
| first2= Rosa A. | author2-link = Rosa Amelia González-Lópezlira
| title = Signatures of Long-lived Spiral Patterns
| journal = The Astrophysical Journal
| volume = 765
| issue = 2
| pages = 105
|date=March 2013
| doi = 10.1088/0004-637X/765/2/105
| bibcode = 2013ApJ...765..105M
| arxiv = 1301.6634
| s2cid= 119245715
| postscript = .
}}
| last1 = Elias-Rosa | first1 = Nancy
| last2 = Van Dyk | first2 = Schuyler D.
| last3 = Li | first3 = Weidong
| last4 = Morrell | first4 = Nidia
| last5 = Gonzalez | first5 = Sergio
| last6 = Hamuy | first6 = Mario
| last7 = Filippenko | first7 = Alexei V.
| last8 = Cuillandre | first8 = Jean-Charles
| last9 = Foley | first9 = Ryan J.
| last10 = Smith | first10= Nathan
| display-authors = 1
| title = On the Progenitor of the Type II-Plateau SN 2008cn in NGC 4603
| journal = The Astrophysical Journal
| volume = 706
| issue = 2
| pages = 1174–1183
|date=December 2009
| doi = 10.1088/0004-637X/706/2/1174
| bibcode = 2009ApJ...706.1174E
| arxiv = 0910.2275
| s2cid = 27405656
| postscript = .
}}
| last1 = Newman | first1 = Jeffrey A.
| last2 = Zepf | first2 = Stephen E.
| last3 = Davis | first3 = Marc
| last4 = Freedman | first4 = Wendy L.
| last5 = Madore | first5 = Barry F.
| last6 = Stetson | first6 = Peter B.
| last7 = Silbermann | first7 = N.
| last8 = Phelps | first8 = Randy
| display-authors = 1
| title = A Cepheid Distance to NGC 4603 in Centaurus
| journal = The Astrophysical Journal
| volume = 523
| issue = 2
| pages = 506–520
|date=October 1999
| doi = 10.1086/307764
| bibcode = 1999ApJ...523..506N
| arxiv = astro-ph/9904368
| s2cid = 15343736
| postscript = .
}}
}}
External links
- {{commonscat-inline}}
{{Ngc50}}
{{Centaurus}}
{{DEFAULTSORT:NGC 4603}}