H I 21 cm absorption at z 2.347 towards PKS B0438-436
نویسندگان
چکیده
منابع مشابه
HI 21 cm absorption at z ∼ 2 . 347 towards PKS B 0438 − 436
We report the detection of redshifted HI 21cm absorption in the z ∼ 2.347 damped Lymanα absorber (DLA) towards PKS B0438−436, with the Green Bank Telescope. This is the second-highest redshift at which 21cm absorption has been detected in a DLA. The absorption extends over ∼ 60 km s and has two distinct components, at z = 2.347477(12) and z = 2.347869(20). A similar velocity structure is seen i...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society: Letters
سال: 2006
ISSN: 1745-3925,1745-3933
DOI: 10.1111/j.1745-3933.2006.00186.x