Q2343-BX418

Q2343-BX418
Observation data (J2000 epoch)
ConstellationPegasus
Right ascension23h 46m 18.57s[1]
Declination12° 47′ 47.38″[1]
Redshift2.3052[1]
Apparent magnitude (V)23.9
Characteristics
Mass1.2×1010[1] M☉
Other designations
HB89 2343+125 BX418, PGC 4668402, SDSS J234618.57+124747.8

Q2343-BX418 is a young, low-metallicity dwarf galaxy located about 10 billion light years away from Earth. It has a redshift of 2.3052,[1] and a stellar mass of 500 million solar masses.[2]

  1. ^ a b c d e Dawn K. Erb; Steidel, Charles C.; Shapley, Alice E.; Pettini, Max; Reddy, Naveen A.; Adelberger, Kurt L. (February 3, 2006). "The Stellar, Gas, and Dynamical Masses of Star-forming Galaxies at z ~ 2*". The Astrophysical Journal. 646 (1): 107–132. arXiv:astro-ph/0604041. Bibcode:2006ApJ...646..107E. doi:10.1086/504891. S2CID 14911369.
  2. ^ Erb, Dawn K.; Steidel, Charles C.; Chen, Yuguang (May 21, 2018). "The Kinematics of Extended Lyα Emission in a Low-mass, Low-metallicity Galaxy at z = 2.3*". The Astrophysical Journal. 862 (1): L10. arXiv:1807.00065. Bibcode:2018ApJ...862L..10E. doi:10.3847/2041-8213/aacff6. S2CID 56389863.