@article {Curran:2007:1745-3925:L11, title = "Hiand OH absorption in the lensing galaxy of MG J0414+0534", journal = "Monthly Notices of the Royal Astronomical Society: Letters", parent_itemid = "infobike://bpl/mnl", publishercode ="bp", year = "2007", volume = "382", number = "1", publication date ="2007-11-21T00:00:00", pages = "L11-L15", itemtype = "ARTICLE", issn = "1745-3925", url = "https://www.ingentaconnect.com/content/bpl/mnl/2007/00000382/00000001/art00003", doi = "doi:10.1111/j.1745-3933.2007.00379.x", keyword = "gravitational lensing, galaxies: ISM, quasars: absorption lines, galaxies: individual: MG J0414+0534, early Universe, cosmology: observations", author = "Curran, S. J. and Darling, J. and Bolatto, A. D. and Whiting, M. T. and Bignell, C. and Webb, J. K.", abstract = "ABSTRACT We report the detection of Hi21-cm absorption in the z= 0.96 early-type lensing galaxy towards MG J0414+0534 with the Green Bank Telescope. The absorption, with total NHi= 1.6 \texttimes 1018 (Ts/f)cm2, is resolved into two strong components, probably due to the two strongest lens components, which are separated by 0.4 arcsec. Unlike the other three lenses that have been detected in Hi, J0414+0534 does not exhibit strong OH absorption, giving an OH/Hicolumn density ratio of NOH/NHi 106 (for Ts= 100 K, Tx= 10 K and fHi=fOH= 1 ). This underabundance of molecular gas may indicate that the extreme opticalnear-infrared colour (VK= 10.26) along the line of sight is not due to the lens. We therefore suggest that despite the strong upper limits on molecular absorption at the quasar redshift, as traced by millimetre lines, the extinction occurs primarily in the quasar host galaxy.", }