Antlia Dwarf

Not to be confused with Antlia II.

Antlia Dwarf
Antlia Dwarf by Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationAntlia
Right ascension10h 04m 03.9s[1]
Declination−27° 19′ 55″[1]
Redshift362 ± 0 km/s[1]
Distance1.32 ± 0.06[2] Mpc
1.33 ± 0.10[3] Mpc
1.31 ± 0.03[4] Mpc
1.29 ± 0.02[5] Mpc
1.25[6] Mpc
Group or clusterAntlia-Sextans Group
Apparent magnitude (V)15.67 ± 0.02[2]
Characteristics
TypedE3.5[1] dSph,[3] dSph/Irr
Mass3 × 107 M☉
Apparent size (V)2′.0 × 1′.5[1]
Other designations
Antlia Dwarf Galaxy,[1] PGC 29194[1]
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The Antlia Dwarf is a dwarf spheroidal/irregular galaxy. It lies about 1.3 Mpc (4.3 million light-years) from Earth in the constellation Antlia. It is the fourth and faintest member of the nearby Antlia-Sextans Group of galaxies. The galaxy contains stars of all ages, contains significant amounts of gas, and has experienced recent star formation. The Antlia Dwarf is believed to be tidally interacting with the small barred spiral galaxy NGC 3109.[3][7]

  1. ^ a b c d e f g Cite error: The named reference ned was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference AparicioEtAl1997 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference vandenBerg1999 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference PiersimoniEtAl1999 was invoked but never defined (see the help page).
  5. ^ Dalcanton, J. J.; Williams, B. F.; Seth, A. C.; Dolphin, A.; Holtzman, J.; Rosema, K.; Skillman, E. D.; Cole, A.; Girardi, L. O.; Gogarten, S. M.; Karachentsev, I. D.; Olsen, K.; Weisz, D.; Christensen, C.; Freeman, K.; Gilbert, K.; Gallart, C.; Harris, J.; Hodge, P.; De Jong, R. S.; Karachentseva, V.; Mateo, M.; Stetson, P. B.; Tavarez, M.; Zaritsky, D.; Governato, F.; Quinn, T. (2009). "The Acs Nearby Galaxy Survey Treasury". The Astrophysical Journal Supplement Series. 183 (1): 67–108. arXiv:0905.3737. Bibcode:2009ApJS..183...67D. doi:10.1088/0067-0049/183/1/67. S2CID 5032304.
  6. ^ Tully, R. B.; Rizzi, L.; Dolphin, A. E.; Karachentsev, I. D.; Karachentseva, V. E.; Makarov, D. I.; Makarova, L.; Sakai, S.; Shaya, E. J. (2006). "Associations of Dwarf Galaxies". The Astronomical Journal. 132 (2): 729–748. arXiv:astro-ph/0603380. Bibcode:2006AJ....132..729T. doi:10.1086/505466. S2CID 119505770.
  7. ^ Cite error: The named reference Grebel2003 was invoked but never defined (see the help page).