UGC 6614 explained

UGC 6614
Epoch:J2000
Type:(R)SA(r)a[1]
Dist Ly:322 Mly (98.72 Mpc)
Z:0.021188 ± 0.000007
Appmag V:14.377
Absmag B:-22.00 ± 0.50
Constellation Name:Leo
Size:~88kpc (estimated)
Size V:1.7' × 1.4'
H Radial V:6,359 ± 2 km/s

UGC 6614 is a giant spiral galaxy located about 330 million light-years away in the constellation Leo. It has an estimated diameter of nearly 300,000 light-years.[2]

Physical characteristics

UGC 6614 is classified as a low surface brightness (LSB) galaxy.[3] [4] [5] The galaxy is nearly face-on and has a ring-like feature around its bulge,[6] with distinctive extended spiral arms.[7] The bulge of UGC 6614 is found to be red, similar to those of S0 and other elliptical galaxies, hinting at the existence of an old star population.[8] In its center, globular clusters are present.[9]

It is hypothesised UGC 6614 might be a giant elliptical galaxy, but because of repeated mergers with other disk galaxies, it shows a stellar disk structure, causing its spiral-like appearance.[10]

UGC 6614 possibly shows the highest metallicity known for an LSB galaxy with an estimated log value of (O/H) 1⁄4 3 to 2.84.[11] Its nucleus shows AGN activity at optical wavelengths[12] and appears as a bright core in X-ray emission, according to XMM-Newton archival data.

Black hole

UGC 6614 contains a supermassive black hole in its center with an estimated solar mass of 3.8 x 106.[13]

Unconfirmed Supernova

AT 2020ojw, an astronomical transient, was discovered in UGC 6614 in July 2020 by ATLAS (Asteroid Terrestrial-impact Last Alert System). It had a magnitude of 18.4 and is a candidate supernova.[14] [15]

Group Membership

UGC 6614 is a member of a small group of 3 galaxies known as [T2015] nest 100958. [T2015] nest 100958 has a velocity dispersion of 244 km/s and an estimated mass of 1.38 × 1013 M☉. Other members of the group incude its brightest member, NGC 3767, and CGCG 097-024.[16] The group is part of the Coma Supercluster.[17] [18] [19]

See also

Notes and References

  1. Web site: NASA/IPAC Extragalactic Database . Results for UGC 6614 . 2017-07-22.
  2. Web site: Your NED Search Results . 2024-08-10 . ned.ipac.caltech.edu.
  3. Web site: Giant Low Surface Brightness Galaxies - Ronald J. Buta . 2024-08-09 . ned.ipac.caltech.edu.
  4. Naik . Sachindra . Das . M. . Jain . C. . Paul . B. . March 2010 . An X-ray bright nucleus in the low-surface-brightness galaxy UGC 6614 . Monthly Notices of the Royal Astronomical Society . 404 . 4 . 2056 . 10.1111/j.1365-2966.2010.16423.x . free . 1001.5096 . 2010MNRAS.404.2056N . 0035-8711.
  5. Mishra . Alka . Kantharia . N. G. . Das . M. . Omar . A. . Srivastava . D. C. . 2017-01-21 . GMRT HI study of giant low surface brightness galaxies . Monthly Notices of the Royal Astronomical Society . 464 . 3 . 2741–2751 . 10.1093/mnras/stw2506 . free . 1609.07544 . 0035-8711.
  6. Hinz . J. L. . Rieke . M. J. . Rieke . G. H. . Willmer . C. N. A. . Misselt . K. . Engelbracht . C. W. . Blaylock . M. . Pickering . T. E. . 2007-07-01 . Spitzer Observations of Low-Luminosity Isolated and Low Surface Brightness Galaxies . The Astrophysical Journal . 663 . 2 . 895–907 . 10.1086/518817 . 0704.2059 . 2007ApJ...663..895H . 0004-637X.
  7. Mehta . Kushal T. . O'Neil . K. . 2006-12-01 . Mapping a Low Surface Brightness Galaxy . American Astronomical Society Meeting Abstracts . 209 . 04.11. 2006AAS...209.0411M .
  8. Quillen . A. C. . Pickering . T. E. . 1997-05-01 . Evidence for Old Stars in the Red Low Surface Brightness Galaxies UGC 6614 and F568-6 . arXiv e-prints . astro–ph/9705115 . astro-ph/9705115 . 1997astro.ph..5115Q .
  9. Kim . J. H. . McGaugh . S. S. . 2002-12-01 . Hubble Space Telescope Imaging of Globular Clusters in the Face-on Galaxies UGC 5981 & UGC 6614 . American Astronomical Society Meeting Abstracts . 201 . 13.04. 2002AAS...201.1304K .
  10. Yoachim . Peter . Schmitz . D. . Loebman . S. . Debattista . V. P. . Kwak . S. . 2014-01-01 . IFU Observations of Giant Low Surface Brightness Galaxies . American Astronomical Society Meeting Abstracts #223 . 223 . 453.05. 2014AAS...22345305Y .
  11. McGaugh . S.S. . Oxygen Abundances In Low Surface Brightness Disk Galaxies . 2024-08-09 . The Astrophysical Journal. 1994 . 426 . 135 . 10.1086/174049 . astro-ph/9311064 . 1994ApJ...426..135M .
  12. Schombert . J. . 1998-10-01 . Active Galactic Nucleus Activity in Giant, Low Surface Brightness Galaxies . The Astronomical Journal . 116 . 4 . 1650–1656 . 10.1086/300558 . 1998AJ....116.1650S . 0004-6256.
  13. Ramya . S. . Prabhu . T. P. . Das . M. . 2011-12-01 . Active galactic nucleus activity and black hole masses in low surface brightness galaxies . Monthly Notices of the Royal Astronomical Society . 418 . 2 . 789–800 . 10.1111/j.1365-2966.2011.19530.x . free . 1108.0763 . 2011MNRAS.418..789R . 0035-8711.
  14. Srivastav . S. . Smith . K. W. . McBrien . O. . Smartt . S. J. . Gillanders . J. . Clark . P. . Fulton . M. . O'Neill . D. . Young . D. R. . McCollum . M. . Townsend . A. . Chen . T. W. . Anderson . J. . Denneau . L. . Flewelling . H. . 2020-07-01 . ATLAS20sgz (AT2020ojw): discovery of a candidate supernova in UGC 6614 (93 Mpc) . Transient Name Server AstroNote . 135 . 1. 2020TNSAN.135....1S .
  15. Web site: AT 2020ojw Transient Name Server . 2024-08-09 . www.wis-tns.org.
  16. Tully . R. Brent . 2015-05-01 . Galaxy Groups: A 2MASS Catalog . The Astronomical Journal . 149 . 5 . 171 . 10.1088/0004-6256/149/5/171 . 1503.03134 . 2015AJ....149..171T . 0004-6256.
  17. Web site: UGC 6614 . 2024-08-30 . simbad.cds.unistra.fr.
  18. Mahajan . Smriti . Singh . Ankit . Shobhana . Devika . 2018-08-01 . Ultraviolet and optical view of galaxies in the Coma supercluster . Monthly Notices of the Royal Astronomical Society . 478 . 4 . 4336–4347 . 10.1093/mnras/sty1370 . free . 1805.09029 . 2018MNRAS.478.4336M . 0035-8711.
  19. Gregory . S. A. . Thompson . L. A. . 1978-06-01 . The Coma/A1367 supercluster and its environs. . The Astrophysical Journal . 222 . 784–799 . 10.1086/156198 . 1978ApJ...222..784G . 0004-637X.

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