Giant spiral galaxy
UGC 6614 is a giantspiral galaxy located about 330 millionlight-years away in theconstellation Leo . It has an estimated diameter of nearly 300,000 light-years.[ 2]
Physical characteristics [ edit ] UGC 6614 is classified as alow surface brightness (LSB) galaxy.[ 3] [ 4] [ 5] bulge ,[ 6] spiral arms .[ 7] elliptical galaxies , hinting at the existence of an oldstar population .[ 8] globular clusters are present.[ 9]
It is hypothesised UGC 6614 might be a giant elliptical galaxy, but because of repeatedmergers with otherdisk galaxies , it shows a stellar disk structure, causing its spiral-like appearance.[ 10]
UGC 6614 possibly shows the highestmetallicity known for an LSB galaxy with an estimated log value of (O/H) 1⁄4 3 to 2.84.[ 11] AGN activity at optical wavelengths[ 12] XMM-Newton archival data.[ 4]
UGC 6614 contains asupermassive black hole in its center, estimated at 3.8 millionsolar masses .[ 13]
Unconfirmed Supernova [ edit ] AT 2020ojw, anastronomical transient , was discovered in UGC 6614 in July 2020 byATLAS (Asteroid Terrestrial-impact Last Alert System). It had amagnitude of 18.4 and is a candidatesupernova .[ 14] [ 15]
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 ☉ NGC 3767 , andCGCG 097-024 .[ 16] Coma Supercluster .[ 17] [ 18] [ 19]
^a b c d e f g h i "NASA/IPAC Extragalactic Database" .Results for UGC 6614 . Retrieved2017-07-22 .^ "Your NED Search Results" .ned.ipac.caltech.edu . Retrieved2024-08-10 .^ "Giant Low Surface Brightness Galaxies - Ronald J. Buta" .ned.ipac.caltech.edu . Retrieved2024-08-09 .^a b 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.arXiv :1001.5096 Bibcode :2010MNRAS.404.2056N .doi :10.1111/j.1365-2966.2010.16423.x ISSN 0035-8711 . ^ 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.arXiv :1609.07544 doi :10.1093/mnras/stw2506 ISSN 0035-8711 . ^ 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.arXiv :0704.2059 Bibcode :2007ApJ...663..895H .doi :10.1086/518817 .ISSN 0004-637X . ^ Mehta, Kushal T.; O'Neil, K. (2006-12-01)."Mapping a Low Surface Brightness Galaxy" .American Astronomical Society Meeting Abstracts .209 : 04.11.Bibcode :2006AAS...209.0411M . ^ 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 :astro-ph/9705115 ^ 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.Bibcode :2002AAS...201.1304K . ^ 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.Bibcode :2014AAS...22345305Y . ^ McGaugh, S.S. (1994)."Oxygen Abundances In Low Surface Brightness Disk Galaxies" .The Astrophysical Journal .426 : 135.arXiv :astro-ph/9311064 Bibcode :1994ApJ...426..135M .doi :10.1086/174049 . Retrieved2024-08-09 . ^ Schombert, J. (1998-10-01)."Active Galactic Nucleus Activity in Giant, Low Surface Brightness Galaxies" .The Astronomical Journal .116 (4):1650– 1656.Bibcode :1998AJ....116.1650S .doi :10.1086/300558 .ISSN 0004-6256 . ^ 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.arXiv :1108.0763 Bibcode :2011MNRAS.418..789R .doi :10.1111/j.1365-2966.2011.19530.x ISSN 0035-8711 . ^ 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.Bibcode :2020TNSAN.135....1S . ^ "AT 2020ojw | Transient Name Server" .www.wis-tns.org . Retrieved2024-08-09 .^ Tully, R. Brent (2015-05-01)."Galaxy Groups: A 2MASS Catalog" .The Astronomical Journal .149 (5): 171.arXiv :1503.03134 Bibcode :2015AJ....149..171T .doi :10.1088/0004-6256/149/5/171 .ISSN 0004-6256 . ^ "UGC 6614" .simbad.cds.unistra.fr . Retrieved2024-08-30 .^ 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.arXiv :1805.09029 Bibcode :2018MNRAS.478.4336M .doi :10.1093/mnras/sty1370 ISSN 0035-8711 . ^ Gregory, S. A.; Thompson, L. A. (1978-06-01)."The Coma/A1367 supercluster and its environs" .The Astrophysical Journal .222 :784– 799.Bibcode :1978ApJ...222..784G .doi :10.1086/156198 .ISSN 0004-637X .
