Galaxy in the constellation Virgo
NGC 4123 is a modest-sized,[ 10] barred spiral galaxy [ 7] light-years [ 4] equatorial constellation ofVirgo . It was discovered February 25, 1784 byWilliam Herschel .[ 5] Virgo Cluster , and it belongs to a group of three galaxies.[ 11] NGC 4116 , lies at anangular separation of′ interaction between the two galaxies.[ 7] NGC 4179 .[ 11]
Hubble Space Telescope image of NGC 4123Themorphological classification of NGC 4123 is SBx(rs)ab, which indicates this is a spiral galaxy with a central X-shaped bar (SBx) encircled by an incomplete ring structure (rs) and moderate to tightly woundspiral arms (ab). The plane of the galaxy is inclined at an angle of 46.9° to the line of sight from the Earth. It lacks a large spheroidalbulge at the core, showing only a luminous point-like source.[ 10] star formation is ongoing.[ 7] × 1010 M ☉ [ 6] ± 3.281 M ☉ ·yr−1 [ 12] × 1010 M ☉ [ 10]
Radio emission has been detected from an HII nucleus, which is consistent with it having a weakactive galactic nucleus .[ 13] supermassive black hole at the core, it has an estimated mass of7 M ☉ [ 14]
^a b Vallenari, A.; et al. (Gaia collaboration) (2023)."Gaia Data Release 3. Summary of the content and survey properties" .Astronomy and Astrophysics .674 : A1.arXiv :2208.00211 Bibcode :2023A&A...674A...1G .doi :10.1051/0004-6361/202243940 S2CID 244398875 . Gaia DR3 record for this source atVizieR .^ Abazajian, Kevork N.; et al. (2009), "The Seventh Data Release of the Sloan Digital Sky Survey",The Astrophysical Journal Supplement Series ,182 (2):543– 558,arXiv :0812.0649 Bibcode :2009ApJS..182..543A ,doi :10.1088/0067-0049/182/2/543 ,S2CID 14376651 . ^a b Voyer, E. N.; et al. (September 2014), "The GALEX Ultraviolet Virgo Cluster Survey (GUViCS). III. The ultraviolet source catalogs",Astronomy & Astrophysics ,569 : A124,arXiv :1405.4344 Bibcode :2014A&A...569A.124V ,doi :10.1051/0004-6361/201322511 ,S2CID 118455940 , A124. ^a b Haynes, Martha P.; et al. (July 2018), "The Arecibo Legacy Fast ALFA Survey: The ALFALFA Extragalactic H I Source Catalog",The Astrophysical Journal ,861 (1): 49,arXiv :1805.11499 Bibcode :2018ApJ...861...49H ,doi :10.3847/1538-4357/aac956 ^a b Seligman, Courtney,"NGC Objects: NGC 4100 - 4149" ,Celestial Atlas , retrieved2023-11-04 . ^a b Díaz-García, S.; et al. (October 2021), "Molecular gas and star formation within 12 strong galactic bars observed with IRAM-30 m",Astronomy & Astrophysics ,654 : A135,arXiv :2106.13099 Bibcode :2021A&A...654A.135D ,doi :10.1051/0004-6361/202140674 ,S2CID 235624019 , A135. ^a b c d Weiner, Benjamin J.; Williams, T. B.; van Gorkom, J. H.; Sellwood, J. A. (January 2001), "The Disk and Dark Halo Mass of the Barred Galaxy NGC 4123. I. Observations",The Astrophysical Journal ,546 (2):916– 930,arXiv :astro-ph/0008204 Bibcode :2001ApJ...546..916W ,doi :10.1086/318288 ,S2CID 13742393 . ^ Skrutskie, Michael F.; et al. (1 February 2006), "The Two Micron All Sky Survey (2MASS)",The Astronomical Journal ,131 (2):1163– 1183,Bibcode :2006AJ....131.1163S ,doi :10.1086/498708 ISSN 0004-6256 ,S2CID 18913331 . ^ "NGC 4123" ,SIMBAD Centre de données astronomiques de Strasbourg , retrieved2023-11-03 .^a b c Weiner, Benjamin J.; et al. (January 2001), "The Disk and Dark Halo Mass of the Barred Galaxy NGC 4123. II. Fluid-Dynamical Models",The Astrophysical Journal ,546 (2):931– 951,arXiv :astro-ph/0008205 Bibcode :2001ApJ...546..931W ,doi :10.1086/318289 ,S2CID 119068977 . ^a b Kim, Suk; Rey, Soo-Chang; Jerjen, Helmut; Lisker, Thorsten; Sung, Eon-Chang; Lee, Youngdae; Chung, Jiwon; Pak, Mina; Yi, Wonhyeong; Lee, Woong (December 2014), "The Extended Virgo Cluster Catalog",The Astrophysical Journal Supplement ,215 (2): 22,arXiv :1409.3283 Bibcode :2014ApJS..215...22K ,doi :10.1088/0067-0049/215/2/22 ,S2CID 119296675 , 22. ^ Lianou, S.; et al. (November 2019), "Dust properties and star formation of approximately a thousand local galaxies",Astronomy & Astrophysics ,631 : A38,arXiv :1906.02712 Bibcode :2019A&A...631A..38L ,doi :10.1051/0004-6361/201834553 ,S2CID 174801441 , A38. ^ Ulvestad, James S.; Ho, Luis C. (December 2002), "A Search for Active Galactic Nuclei in Sc Galaxies with H II Spectra",The Astrophysical Journal ,581 (2):925– 931,arXiv :astro-ph/0208460 Bibcode :2002ApJ...581..925U ,doi :10.1086/344442 ,S2CID 15482628 . ^ Dong, X. Y.; De Robertis, M. M. (March 2006), "Low-Luminosity Active Galaxies and Their Central Black Holes",The Astronomical Journal ,131 (3):1236– 1252,arXiv :astro-ph/0510694 Bibcode :2006AJ....131.1236D ,doi :10.1086/499334 ,S2CID 17630682 . Weiner, B. J.; et al. (1996), Buta, R.; et al. (eds.), "Fabry-Perot Observations and Hydrodynamical Simulations of the Barred Spiral NGC 4123",Barred galaxies; Proceedings of a conference held at the University of Alabama; Tuscaloosa; Alabama; 30 May - 3 June 1995 , Astronomical Society of the Pacific Conference Series, vol. 91, San Francisco: Astronomical Society of the Pacific, p. 489,Bibcode :1996ASPC...91..489W .
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