SIMBAD references

1998ApJ...500..129W - Astrophys. J., 500, 129-137 (1998/June-2)

The complex molecular absorption line system at z = 0.886 toward PKS 1830-211.


Abstract (from CDS):

New single-dish and millimeter wave interferometer observations of the molecular absorption line system in the gravitational lens to PKS 1830-211 at z = 0.88582 are presented. Self-calibrated interferometer data show unequivocally that the previously detected absorption component is associated with the gravitationally lensed southwest image of the background source. A second absorption line of HCO+ (2⟵1) at z = 0.88582 is detected. This component is shifted in velocity by -147 km.s–1 relative to the main absorption line and is shown to be associated with the northeast image. A few additional absorption lines are presented. Upper limits to absorption and emission lines from the possible absorption system at z = 0.1927, seen in 21 cm H I by Lovell et al., are reported. Alternatively, there could be only one absorbing system at z = 0.88582, with the H I line attributed instead to the PS molecule.

Abstract Copyright:

Journal keyword(s): ISM: Molecules - Galaxies: BL Lacertae Objects: Individual: Alphanumeric: PKS 1830-211 - Galaxies: Abundances - Galaxies: ISM - Cosmology: Gravitational Lensing - Galaxies: Quasars: Absorption Lines

Simbad objects: 5

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