نتایج جستجو برای: 0.439
تعداد نتایج: 38 فیلتر نتایج به سال:
We report a deep search for 21 cm emission/absorption from the z ∼ 0.101 candidate damped Lyman-α system towards PKS 0439−433, using the Australia Telescope Compact Array (ATCA). The spectrum shows a weak absorption feature — at the 3.3σ level — which yields a lower limit of 730 K on the spin temperature of the system. No H i emission was detected: the 3σ upper limit on the H i mass of the abso...
*To whom correspondence should be addressed: RAL Dept. of Molecular Biosciences, 18 Northwestern University, 2205 Tech Drive, Evanston, IL 60208-3500 Telephone: 847-491-5433; 19 Fax: 847-491-2467; e-mail: [email protected]; or AAK – Dept. of Biochemistry and 20 Molecular Biology, The University of Chicago, 900 E. 57th Street, Chicago, Illinois, 60637; 21 Telephone: 773-702-9257; Fax: 773-...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید