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PGC 29820

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Galaxy located in the constellation Sextans
PGC 29820
PGC 29820 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationSextans
Right ascension10h 13m 46.82s
Declination-00d 54m 51.0s
Redshift0.04244
Heliocentric radial velocity12,723 km/s
Distance600 Mly (183.96 Mpc)
Group or clusterAbell 957
Apparent magnitude (V)0.11
Apparent magnitude (B)0.15
Characteristics
TypeSb(f), Seyfert 2
Size120,000 ly
Other designations
LEDA 29820, CGCG 008-077, 2dFGRS N288Z210, AGC 500048, NVSS J101346-005449, JO204

PGC 29820 (known as JO204) is a spiral galaxy 600 million light-years from the Solar System, in the Sextans constellation. The galaxy is about 120,000 light-years in diameter and is a member of Abell 957, a low-mass galaxy cluster. The first known reference to this galaxy is from volume I of the Catalogue of Galaxies and of Clusters of Galaxies compiled by Fritz Zwicky in 1961, where it was listed as CGCG 008-077.

Characteristics

PGC 29820 is classified a massive galaxy with a stellar mass of M* = 4 x10 M. It contains an active galactic nucleus with double-peaked narrow lines. Moreover, it is also a Seyfert 2 galaxy.

PGC 29820 is classified a jellyfish galaxy. According to Gullieuszik, the galaxy is currently in a first phrase of infalling into the cluster where it is subjected to ram pressure by the intracluster medium.

Because dense gas is compressed, it eventually collapses to form new stars in both the galaxy's tail and its disk. According to researchers, the stars inside the tail, has a star formation rate of 0.22 M○ yr which began during the last 500 million years.

In additional, PGC 29820 shows a large presence of molecular gas making up H2 mass of 8.3 x 10 M○. Looking at ratio of total molecular hydrogen mass and stellar mass, it is estimated as 0.42.

See also

References

  1. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 18 April 2024.
  2. ^ Gullieuszik, Marco; Poggianti, Bianca M.; Moretti, Alessia; Fritz, Jacopo; Jaffé, Yara L.; Hau, George; Bischko, Jan C.; Bellhouse, Callum; Bettoni, Daniela; Fasano, Giovanni; Vulcani, Benedetta; D'Onofrio, Mauro; Biviano, Andrea (1 September 2017). "GASP. IV. A Muse View of Extreme Ram-pressure-stripping in the Plane of the Sky: The Case of Jellyfish Galaxy JO204". The Astrophysical Journal. 846 (1): 27. arXiv:1708.09035. Bibcode:2017ApJ...846...27G. doi:10.3847/1538-4357/aa8322. ISSN 0004-637X.
  3. Zwicky, F.; Herzog, E.; Wild, P. (1961). Catalogue of galaxies and of clusters of galaxies, Vol. I. p. 26. Bibcode:1961cgcg.book.....Z. Archived from the original on 19 August 2023.
  4. ^ Deb, Tirna; Verheijen, Marc A W; Gullieuszik, Marco; Poggianti, Bianca M; van Gorkom, Jacqueline H; Ramatsoku, Mpati; Serra, Paolo; Moretti, Alessia; Vulcani, Benedetta; Bettoni, Daniela; Jaffé, L Yara; Tonnesen, Stephanie; Fritz, Jacopo (23 April 2020). "GASP XXV: neutral hydrogen gas in the striking jellyfish galaxy JO204". Monthly Notices of the Royal Astronomical Society. 494 (4): 5029–5043. arXiv:2004.04754. doi:10.1093/mnras/staa968. ISSN 0035-8711.
  5. Wang, Jian-Min; Chen, Yan-Mei; Hu, Chen; Mao, Wei-Ming; Zhang, Shu; Bian, Wei-Hao (1 November 2009). "Active Galactic Nuclei with Double-Peaked Narrow Lines: Are they Dual Active Galactic Nuclei?". The Astrophysical Journal. 705 (1): L76 – L80. arXiv:0910.0580. Bibcode:2009ApJ...705L..76W. doi:10.1088/0004-637X/705/1/L76. ISSN 0004-637X.
  6. Nevin, R.; Comerford, J.; Müller-Sánchez, F.; Barrows, R.; Cooper, M. (1 November 2016). "The Origin of Double-peaked Narrow Lines in Active Galactic Nuclei. II. Kinematic Classifications for the Population at z < 0.1". The Astrophysical Journal. 832 (1): 67. arXiv:1609.04018. Bibcode:2016ApJ...832...67N. doi:10.3847/0004-637X/832/1/67. ISSN 0004-637X.
  7. Véron-Cetty, M. -P.; Véron, P. (1 August 2006). "A catalogue of quasars and active nuclei: 12th edition". Astronomy and Astrophysics. 455 (2): 773–777. Bibcode:2006A&A...455..773V. doi:10.1051/0004-6361:20065177. ISSN 0004-6361.
  8. information@eso.org. "A jellyfish and the ram". www.spacetelescope.org. Retrieved 18 April 2024.
  9. Poggianti, B. M.; Fasano, G.; Omizzolo, A.; Gullieuszik, M.; Bettoni, D.; Moretti, A.; Paccagnella, A.; Jaffé, Y. L.; Vulcani, B.; Fritz, J.; Couch, W.; D'Onofrio, M. (1 March 2016). "Jellyfish Galaxy Candidates at Low Redshift". The Astronomical Journal. 151 (3): 78. arXiv:1504.07105. Bibcode:2016AJ....151...78P. doi:10.3847/0004-6256/151/3/78. ISSN 0004-6256.
  10. "Hubble Spots a Galaxy with Tendrils - NASA Science". science.nasa.gov. Retrieved 26 July 2024.
  11. Poggianti, Bianca M.; Gullieuszik, Marco; Tonnesen, Stephanie; Moretti, Alessia; Vulcani, Benedetta; Radovich, Mario; Jaffé, Yara; Fritz, Jacopo; Bettoni, Daniela; Franchetto, Andrea; Fasano, Giovanni; Bellhouse, Callum; Omizzolo, Alessandro (1 February 2019). "GASP XIII. Star formation in gas outside galaxies". Monthly Notices of the Royal Astronomical Society. 482 (4): 4466–4502. arXiv:1811.00823. Bibcode:2019MNRAS.482.4466P. doi:10.1093/mnras/sty2999. ISSN 0035-8711.
  12. Moretti, A.; Paladino, R.; Poggianti, B. M.; D'Onofrio, M.; Bettoni, D.; Gullieuszik, M.; Jaffé, Y. L.; Vulcani, B.; Fasano, G.; Fritz, J.; Torstensson, K. (1 October 2018). "GASP – X. APEX observations of molecular gas in the discs and in the tails of ram-pressure stripped galaxies". Monthly Notices of the Royal Astronomical Society. 480 (2): 2508–2520. arXiv:1803.06183. Bibcode:2018MNRAS.480.2508M. doi:10.1093/mnras/sty2021. ISSN 0035-8711.
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