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Title: GMRT detection of HI absorption in the high-redshift red quasar 3C 190
Authors: Ishwara-Chandra, C.H.
Anantharamaiah, K.R.
Dwarakanath, K.S.
Keywords: Galaxies
active – quasars
absorption lines - radio lies: galaxies
Issue Date: 2002
Publisher: The Astronomical Society of India
Citation: Bulletin of the Astronomical Society of India, 2002, Vol.30, p747-748
Abstract: We report the GMRT detection of H I absorption in the high- redshift red quasar 3C 190 at a redshift of 1.1946. The most interesting result is that the peak of the H I absorption is blue shifted by - 250 kms-1 with respect to the optical emission lines. The H I absorption profile indicates the presence of multiple components and the peak absorption is at 647.728 MHz. The FWHM of this absorption feature is 185 ± 7 kms-1and the peak optical depth is 0.012. The corresponding atomic hydrogen column density is 3.98 x 10^20 (T,/100K) cm-2.
Description: Presented at the 21st meeting of the Astronomical Society of India, Pune, 2002.
ISSN: 0304-9523
Copyright: (2002) by the Astronomical Society of India.
Appears in Collections:Research Papers (A&A)

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