The Large Scale Distribution of Neutral Hydrogen in the Fornax Region
نویسنده
چکیده
Meryl Waugh, M.J. Drinkwater, R.L. Webster, L. Staveley-Smith, V.A. Kilborn, D.G. Barnes, R. Bhathal, W.J.G. de Blok, P.J. Boyce, M.J. Disney, R.D. Ekers, K.C. Freeman, B.K. Gibson, P.A. Henning, H. Jerjen, P.M. Knezek, B. Koribalski, M. Marquarding, R.F. Minchin, R.M. Price, M.E. Putman, S.D. Ryder, E.M. Sadler, F. Stootman and M.A. Zwaan School of Physics, University of Melbourne, VIC 3010, Australia Australia Telescope National Facility, CSIRO, P.O. Box 76, Epping, NSW 1710, Australia University of Manchester, Jodrell Bank Observatory, Macclesfield, Cheshire, UK, SKll 9DL Centre for Astrophysics & Supercomputing, Swinburne University, Mail #31, P.O. Box 218, Hawthorn, VIC 3122, Australia University of Western Sydney Macarthur, Department of Physics, P.O. Box 555, Campbelltown, NSW 2560, Australia University of Wales, Cardiff, Department of Physics & Astronomy, P.O. Box 913, Cardiff CF2 3YB, U.K. Research School of Astronomy and Astrophysics, ANU, Weston Creek P.O., Weston, ACT 2611, Australia University of New Mexico, Department of Physics & Astronomy, 800 Yale Blvd. NE, Albuquerque, NM 87131, USA Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80309-0389, USA. Hubble Fellow Anglo-Australian Observatory, P.O. Box 296, Epping, NSW 1710, Australia University of Sydney, Astrophysics Department, School of Physics, A28, Sydney, NSW 2006, Australia
منابع مشابه
The neutral hydrogen content of Fornax cluster galaxies
We present a new set of deep H i observations of member galaxies of the Fornax cluster. We detected 35 cluster galaxies in H i. The resulting sample, the most comprehensive to date, is used to investigate the distribution of neutral hydrogen in the cluster galaxies. We compare the H i content of the detected cluster galaxies with that of field galaxies by measuring H i mass-to-light ratios and ...
متن کاملModeling and simulation of a new architecure stack applied on the PEM Fuel Cell
To simulate a new economical architecture for PEM fuel cell and investigate the effectiveness of the introduced structure on the performance, computational fluid dynamics (CFD) code is used to solve the equations for a single domain of the cell namely: the flow field, the mass conservation, the energy conservation, the species transport, and the electric/ionic fields under the assumptions of st...
متن کاملLPKP: location-based probabilistic key pre-distribution scheme for large-scale wireless sensor networks using graph coloring
Communication security of wireless sensor networks is achieved using cryptographic keys assigned to the nodes. Due to resource constraints in such networks, random key pre-distribution schemes are of high interest. Although in most of these schemes no location information is considered, there are scenarios that location information can be obtained by nodes after their deployment. In this paper,...
متن کاملar X iv : a st ro - p h / 05 01 08 6 v 2 1 0 Ja n 20 05 Redshifted 21 cm Emission From the Pre - Reionization Era II . H II Regions Around Individual
We use cosmological simulations of reionization to predict the effect of large H II regions around individual high-redshift quasars on the possible signal from the redshifted 21 cm line of neutral hydrogen in the pre-reionization era. We show that these H II regions appear as “spectral dips” in frequency space with equivalent widths in excess of 3mK MHz or depths in excess of about 1.5mK, and t...
متن کاملA limited memory adaptive trust-region approach for large-scale unconstrained optimization
This study concerns with a trust-region-based method for solving unconstrained optimization problems. The approach takes the advantages of the compact limited memory BFGS updating formula together with an appropriate adaptive radius strategy. In our approach, the adaptive technique leads us to decrease the number of subproblems solving, while utilizing the structure of limited memory quasi-Newt...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002