Imaging the z=0.9 Absorbing Cloud toward 1830-211

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dc.creatorCarilli, C. L.
dc.creatorMenten, K. M.
dc.creatorReid, M. J.
dc.creatorRupen, M.
dc.creatorClaussen, M.
dc.date1998-01-15
dc.date.accessioned2026-07-07T02:25:51Z
dc.date.available2026-07-07T02:25:51Z
dc.descriptionWe present spectroscopic imaging observations of the molecular and HI 21cm absorbing cloud at z = 0.885 toward the `Einstein ring' radio source PKS 1830-211. We derive a cloud size between 10 h^{-1} pc and 600 h^{-1} pc, and M(H_2) > 2.6x10^{4} h^{-2} Msolar. The temperature of the ambient radiation field is 4.5+/-0.9 K, consistent with the microwave background temperature at z = 0.885. The velocity difference for absorption on opposite sides of the ring is -146 km s^{-1}, which is consistent with the galaxian rotation velocity derived from gravitational lens models.
dc.descriptionfor `Probing the Intergalactic Medium with QSO Absorption Lines,' ed. P. Petitjean (IAP: Paris)
dc.identifierhttps://arxiv.org/abs/astro-ph/9801157
dc.identifierhttp://arxiv.org/abs/astro-ph/9801157
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/12036
dc.subjectAstrophysics
dc.titleImaging the z=0.9 Absorbing Cloud toward 1830-211
dc.typetext

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