Astronomy:NGC 3125

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NGC 3125
Observation data (J2000 epoch)
ConstellationAntlia
Right ascension10h 06m 33s
Declination-29° 56’ 05”
Redshift0.003712 ± 0.000023 [1]
Helio radial velocity1113 ± 7 km/s[1]
Apparent magnitude (B)13.45
Characteristics
TypeS;BCDG [1]
Apparent size (V)1.1 × 0.7
Other designations
ESO 435-G041, AM 1004-294, MCG -05-24-022
Short description: Galaxy in the constellation Antlia


NGC 3125 is an irregular dwarf starburst galaxy in the constellation Antlia that was discovered by John Herschel in 1835.[2][3] It is located approximately 38 million light-years away from Earth.[4][5] Starburst galaxies are galaxies in which unusually high numbers of new stars are forming, springing to life within intensely hot clouds of gas.[6]

Morphology

In a 2006 study, the two giant H II regions in the galaxy were confirmed to each host two young star clusters.[2] The brightest cluster, NGC 3125-A1 is a confirmed super star cluster with 170,000 solar masses[7] that likely contains some of the most massive stars every found.[4][5]

Nearby galaxies

NGC 3125 is member of the LGG 189 Group, which also includes the galaxies NGC 3113, NGC 3137, and NGC 3175.[8]

See also

References

  1. 1.0 1.1 1.2 "NASA/IPAC Extragalactic Database". Results for NGC 3125. http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+3125. 
  2. 2.0 2.1 Hadfield, L. J.; Crowther, P. A. (2006-06-01). "How extreme are the Wolf-Rayet clusters in NGC3125?*". Monthly Notices of the Royal Astronomical Society 368 (4): 1822–1832. doi:10.1111/j.1365-2966.2006.10245.x. ISSN 0035-8711. Bibcode2006MNRAS.368.1822H. 
  3. "New General Catalog Objects: NGC 3100 - 3149". https://cseligman.com/text/atlas/ngc31.htm#3125. 
  4. 4.0 4.1 Wofford, A.; Sixtos, A.; Smith, L.; Charlot, S.; Bruzual, G. (2024-01-01). "NGC 3125-A1 revisited at higher spectral resolution with COS G160M". IAU Symposium 361: 58–62. doi:10.1017/S1743921322002502. Bibcode2024IAUS..361...58W. https://ui.adsabs.harvard.edu/abs/2024IAUS..361...58W/abstract. 
  5. 5.0 5.1 Plana, Henri; Alves, Vitor G.; Carvalho, Maiara S. (2024-06-01). "The influence of ionized gas kinematics on H II galaxies - the cases of Tol 1004-296 and Tol 0957-278". Monthly Notices of the Royal Astronomical Society 531 (2): 2881–2902. doi:10.1093/mnras/stae1327. ISSN 0035-8711. Bibcode2024MNRAS.531.2881P. 
  6. Now, Astronomy. "NGC 3125 – Astronomy Now" (in en-US). https://astronomynow.com/tag/ngc-3125/. 
  7. Wofford, Aida; Leitherer, Claus; Chandar, Rupali; Bouret, Jean-Claude (2014-02-01). "A Rare Encounter with Very Massive Stars in NGC 3125-A1". The Astrophysical Journal 781 (2): 122. doi:10.1088/0004-637X/781/2/122. ISSN 0004-637X. Bibcode2014ApJ...781..122W. https://ui.adsabs.harvard.edu/abs/2014ApJ...781..122W. 
  8. Garcia, A. M. (1 July 1993). "General study of group membership. II. Determination of nearby groups.". Astronomy and Astrophysics Supplement Series 100: 47–90. ISSN 0365-0138. Bibcode1993A&AS..100...47G. https://cdsarc.cds.unistra.fr/ftp/J/A+AS/100/47/table2.dat.