Dictionary of Nomenclature of Celestial Objects

HST STIS and FUSE observations.
N=1 absorption system associated with a group of galaxies toward PKS 2155-304 = QSO J2158-3013.
The 3 strongest components of the aborption systems are designated A to C.
Ref:=2003ApJ...594L.107S
bySHULL J.M. , TUMLINSON J., GIROUX M.L.
 Astrophys. J., 594, 107-110 (2003)
  The multiphase intergalactic medium toward PKS 2155-304.
o<[STG2003] QSO J2158-3013 abs N.NNNN> N=1. <[STG2003] abs A> (Nos A-C).

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