Astronomy:PGC 65543

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PGC 65543
Hubble Space Telescope image of PGC 65543
Observation data (J2000 epoch)
ConstellationIndus
Right ascension20h 51m 17.59s
Declination-52d 49m 21.50s
Redshift0.047493
Helio radial velocity14,238 km/s
Distance650 Mly (199.2 Mpc)
Apparent magnitude (V)0.09
Apparent magnitude (B)0.12
Characteristics
TypeSa
Size90,000 ly (estimated)
Apparent size (V)0.46' x 0.41'
Other designations
LEDA 65543, 2MASX J20511757-5249221, WINGS J205117.58-524921.5, JO175

PGC 65543 ( known as JO175), is a spiral galaxy, with extensive star forming regions, located in Indus.[1][2] It is 650 million light-years away from the Solar System and approximately measuring 90,000 light-years in diameter.[1] The tidal interactions from certain galaxies which PGC 65543 is moving towards to, have caused it to get distorted.[3] Its star-forming gas and dust are dynamically stripped by ram-pressure[4][5] and formed into tendrils that stretch outwards, thus gives an appearance of a jellyfish galaxy.[3][6][7]

See also

  • PGC 29820
  • IC 4141

References

  1. 1.0 1.1 "Your NED Search Results". https://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Obj_id&objid=225462&objname=1&img_stamp=YES&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1. 
  2. "PGC 65543". https://simbad.u-strasbg.fr/simbad/sim-basic. 
  3. 3.0 3.1 information@eso.org. "Ghostly galactic jellyfish" (in en). https://www.spacetelescope.org/images/potw2318a/. 
  4. Poggianti, Bianca M; Gullieuszik, Marco; Tonnesen, Stephanie; Moretti, Alessia; Vulcani, Benedetta; Radovich, Mario; Jaffé, Yara; Fritz, Jacopo et al. (2018-11-05). "GASP XIII. Star formation in gas outside galaxies". Monthly Notices of the Royal Astronomical Society 482 (4): 4466–4502. doi:10.1093/mnras/sty2999. ISSN 0035-8711. 
  5. Vulcani, Benedetta; Poggianti, Bianca M.; Gullieuszik, Marco; Moretti, Alessia; Tonnesen, Stephanie; Jaffé, Yara L.; Fritz, Jacopo; Fasano, Giovanni et al. (2018-10-01). "Enhanced Star Formation in Both Disks and Ram-pressure-stripped Tails of GASP Jellyfish Galaxies". The Astrophysical Journal 866 (2): L25. doi:10.3847/2041-8213/aae68b. ISSN 0004-637X. Bibcode2018ApJ...866L..25V. 
  6. Poggianti, B. M.; Fasano, G.; Omizzolo, A.; Gullieuszik, M.; Bettoni, D.; Moretti, A.; Paccagnella, A.; Jaffé, Y. L. et al. (2016-03-01). "Jellyfish Galaxy Candidates at Low Redshift". The Astronomical Journal 151 (3): 78. doi:10.3847/0004-6256/151/3/78. ISSN 0004-6256. Bibcode2016AJ....151...78P. 
  7. Gullieuszik, Marco; Giunchi, Eric; Poggianti, Bianca M.; Moretti, Alessia; Scarlata, Claudia; Calzetti, Daniela; Werle, Ariel; Zanella, Anita et al. (2023-03-01). "UV and Hα HST Observations of Six GASP Jellyfish Galaxies". The Astrophysical Journal 945 (1): 54. doi:10.3847/1538-4357/acb59b. ISSN 0004-637X. Bibcode2023ApJ...945...54G.