Search for radio recombination lines towards the gravitational lens PKS 1830-211

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dc.creatorMohan, Niruj R.
dc.creatorAnantharamaiah, K. R.
dc.creatorGoss, W. M.
dc.date2000-04-21
dc.date.accessioned2026-07-07T01:53:15Z
dc.date.available2026-07-07T01:53:15Z
dc.descriptionA search for radio recombination lines near 20 cm at z=0.193 and z=0.886 towards the gravitational lens system PKS 1830-211 has yielded upper limits on the line optical depth of 5 x 10^{-5} and 5 x10^{-4} at the two redshifts respectively. Based on the non-detections, we derive upper limits to the emission measure of the ionized gas in the absorbing systems. We also present continuum flux density measurements over the frequency range 0.3-45 GHz made at a single epoch.
dc.description2 pages with 2 figures, Latex format, to appear in the proceedings of IAU 199, "The Universe at Low Radio Frequencies" held in Pune, India, ASP
dc.identifierhttps://arxiv.org/abs/astro-ph/0004307
dc.identifierhttp://arxiv.org/abs/astro-ph/0004307
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/900
dc.subjectAstrophysics
dc.titleSearch for radio recombination lines towards the gravitational lens PKS 1830-211
dc.typetext

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