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Astronomy and Astrophysics
Results: 2059

#	Item
461	Beta-delayed neutrons with VANDLE R. Grzywacz Dept. of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, USA Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA Beta-delayed neutr Add to Reading List Source URL: www.phy.anl.gov Language: English - Date: 2015-04-04 10:02:25 Radioactivity Nuclear technology Nucleosynthesis Astrophysics Delayed neutron Neutron Prompt neutron R-process Beta decay Physics Nuclear physics Particle physics
462	Reflections, Echos, Doppler, Libration and Scintillation Add to Reading List Source URL: www.vk3um.com Language: English - Date: 2014-07-14 02:08:43 Atmosphere Physics GPS Astrophysics Ionosphere Optical materials Scintillation GPS signals High Frequency Active Auroral Research Program Plasma physics Space plasmas Observational astronomy
463	THE ACCURACY OF PRESENT MODELS OF THE HIGH ALTITUDE POLAR MAGNETOSPHERE C. T. Russell1, J. G. Luhmann2 and F. R. Fenrich3 1 Department of Earth and Space Sciences, University of California Los Angeles Add to Reading List Source URL: www-ssc.igpp.ucla.edu Language: English - Date: 2003-02-06 12:28:34 Astrophysics Astronomy Planetary science Jets Geomagnetism Magnetopause Magnetosphere Magnetic reconnection Magnetohydrodynamics Physics Space plasmas Plasma physics
464	PHD QUALIFY EXAMINATION — GALACTIC AND EXTRAGALACTIC ASTROPHYSICS 3rd March, points) Because of the diﬀerential rotation of the Galaxy, a celestial object (star, cloud) viewed Add to Reading List Source URL: www.astro.ncu.edu.tw Language: English - Date: 2014-05-12 00:06:46 Physical cosmology Astrometry Spiral galaxy Spirals Oort constants Elliptical galaxy Cosmic distance ladder Globular cluster Galaxy Astronomy Space Galactic astronomy
465	PHD QUALIFY EXAMINATION — STELLAR ASTROPHYSICS 10th July, points) (a) Show that the outward pressure required to support a normal star of mass M and radius R is approximately M 2 G/R4 . In general the outw Add to Reading List Source URL: www.astro.ncu.edu.tw Language: English - Date: 2014-05-12 00:06:46 Stellar astronomy Astrophysics Space plasmas Physical phenomena Radiation pressure Eddington luminosity Star Photon Sun Physics Matter Light sources
466	PHD QUALIFY EXAMINATION — STELLAR ASTROPHYSICS 2nd March, points) An A type star has M = 2M , L = 12L , and Teﬀ = 8000 K. (a) Estimate its radius. Add to Reading List Source URL: www.astro.ncu.edu.tw Language: English - Date: 2014-05-12 00:06:46 Space Star Stellar structure Stellar evolution Virial theorem White dwarf Dyson sphere Stellar astronomy Physics Astronomy
467	PHD QUALIFY EXAMINATION — STELLAR ASTROPHYSICS September, points) Consider a pure hydrogen stellar envelope at ρ = 10−8 g cm−1 and T = 20, 000 K. (a) (5 points) Calculate the relative populations of t Add to Reading List Source URL: www.astro.ncu.edu.tw Language: English - Date: 2014-05-12 00:06:46 Stellar evolution Space Stellar astronomy Astrophysics Dark matter White dwarf Star Chandrasekhar limit Hydrogen Astronomy Matter Star types
468	ASTRO 101 – M.M. Montgomery montgomery@physics,ucf.edu Solar Flare and CME Hands-On Lab LWS Heliophysics Summer School 2013 ! Add to Reading List Source URL: www.vsp.ucar.edu Language: English - Date: 2014-04-30 17:36:02 Astrophysics Astronomy Light sources Solar cycle Sunspot Coronal mass ejection Corona Sun Solar flare Space plasmas Physics Plasma physics
469	Astronomy & Astrophysics A&A 459, E3DOI: : Add to Reading List Source URL: www.aanda.org Language: English Astronomy and Astrophysics European Southern Observatory Astrophysics Data System Peer review Astrophysics Science Publishing Knowledge
470	1. The magnetic moment of Earth is approximately 31,000 nT- RE3 . The solar wind has a bulk velocity of 400 km/sec and a density of 5 cm-3 at 1 AU. Assume a very simple model of Earth’s magnetopause in which it is a pl Add to Reading List Source URL: www.heliophysics.ucar.edu Language: English - Date: 2012-06-04 12:42:45 Astronomy Planetary science Plasma physics Magnetopause Solar wind Magnetosheath Bow shock Magnetic field Magnetosphere Physics Space plasmas Astrophysics

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