NGC 3125

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NGC 3125
Extreme NGC 3125.png
Observation data (J2000 epoch)
Constellation Antlia
Right ascension 10h 06m 33s
Declination -29° 56’ 05”
Redshift 0.003712 ± 0.000023 [1]
Heliocentric radial velocity 1113 ± 7 km/s [1]
Apparent magnitude  (B)13.45
Surface brightness 22.63 mag/arcsec2
Characteristics
Type S;BCDG [1]
Apparent size  (V)1.1′ × 0.7′
Other designations
ESO 435-G041, AM 1004-294, MCG -05-24-022

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]

Contents

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 2 3 "NASA/IPAC Extragalactic Database". Results for NGC 3125. Retrieved 2024-03-26.
  2. 1 2 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: 1822–1832. doi:10.1111/j.1365-2966.2006.10245.x. ISSN   0035-8711.
  3. ↑ "New General Catalog Objects: NGC 3100 - 3149". cseligman.com. Retrieved 2025-02-16.
  4. 1 2 Wofford, A.; Sixtos, A.; Smith, L.; Charlot, S.; Bruzual, G. (2024-01-01). "NGC 3125-A1 revisited at higher spectral resolution with COS G160M". 361: 58–62. doi:10.1017/S1743921322002502.{{cite journal}}: Cite journal requires |journal= (help)
  5. 1 2 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: 2881–2902. doi:10.1093/mnras/stae1327. ISSN   0035-8711.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  6. ↑ Now, Astronomy. "NGC 3125 – Astronomy Now" . Retrieved 2024-04-19.
  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: 122. arXiv: 1312.5982 . doi:10.1088/0004-637X/781/2/122. ISSN   0004-637X.
  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. Bibcode:1993A&AS..100...47G. ISSN   0365-0138.
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