... It seems likely that field-aligned potential drops (upward directed electric fields) are formed to create this effect (e.g., Weimer and Gurnett, 1993), although different wave-related schemes have also been suggested (e.g., Bryant et al., ... Auroral arcs have been related to large, perpendicular electric field structures, electrostatic shocks , observed mostly at geocentric distances 1.4 - 1.8 Re (9000 - 12000 km altitude; Mozer et al., 1977; Torbert and Mozer, 1978; Mozer et al., ... Res. ...

... HeB HeR StH 41 05 29 11.44 -06 08 05.4 10.6: F:ea tab2_06.ps tab2_06.jpg spec2_06.ps NGC 1977 p102 Y-WeT HeB RY Ori 05 32 09.94 -02 49 46.6 10.80-13.9pg 11.15-13.00 F6/8ep tab2_07.ps tab2_07.jpg spec2_07.ps Y-BiT DST?- ... ps Bran 217 O-WeT Star in bright Neb-TiS BeC, FiM T Cha 11 57 13.53 -79 21 31.5 10.1-14.0 F5e tab2_13.ps tab2_13.jpg spec2_13.ps Y-WeT No Em+DST? ... HeB BO Cep 22 16 54.07 +70 03 45.1 12.0-13.7B 11.46 F2ea tab2_23.ps tab2_23.jpg spec2_23.ps Y-WeT HeB . Table I | ...

... Explanation: This planet is only 16 light years away -- could it harbor life? ... An interesting coincidence, however, is that Gliese 832c receives just about the same average energy from its parent star as does the Earth. ... If Gliese 832c has an atmosphere like Earth, it may be a super-Earth undergoing strong seasons but capable of supporting life. ... The close 16-light year distance makes the Gliese 832 planetary system currently the nearest to Earth that could potentially support life. ...

... ATNF Home . ... About ATNF overview . ... Contact us . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... VLBI . ... User feedback . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Next: Correlation Up: Australia Telescope National Facility Previous: VLBI scheduling and coordination . ...

. The Catalogue has been created as a handbook for professional astronomers and experts in other related fields of knowledge. An additional objective is to outline the astronomical knowledge that is required for understanding and usage of the data included in the Catalogue. The Catalogue contains data on 493 potentially hazardous asteroids as of 27 March, 2003 (Minimum Obital Intersecion Distance MOID H . Full Russian version of book ?Catalogue of potentially hazardous asteroids and comets?

... Solar structures oscillate · · many different oscillation periods have been identified - lots of frequency space to examine. concentrate on 3 and 5 minute wavebands. ... Identification of oscillating individual pixels, then segmentation into significant groups Data · · · · Use SPoCA active region detections. ... Analysis · · Oscillation model in each pixel dj = A cos( tj )+ B sin( tj ) Calculate (Bayesian) probability p() that the timeseries dj observed at times tj= j.t (1jN) supports a frequency . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... We discuss the diagnostic potential of high cadence ultraviolet spectral data when transient ionization is considered. ... The ionization fraction of the transition region ion O v and in particular the contribution function for the O v 1371 line are computed within the Atomic Data and Analysis Structure, which is a collection of fundamental and derived atomic data and codes which manipulate them. ...

... Future seminars . P a s t seminars . Seminar council . ... D.I. Iudin ( Radiophysical Research Institute, Nizhny Novgorod ) . ... We consider dynamic percolation effects on the base of a cellular automaton model on tree-dimensional lattice. ... We assume that such a fine scale spark discharge can initiate breakdowns of the neighbouring lattice bonds ("infect" the neighbours), if the potential difference between the cells exceeds some activation level, which is less than critical one. ...

... Planets . ... Earth Satellites . ... Looking in the direction of the constellation Cygnus the Swan and launched by NASA in 2009 is the Kepler Space Observatory.Many previous missions searching for exoplanets mainly detected large giant planets, like large hot Jupiters (it is easier to detect larger planets).However KeplerтАЩs main objective is to search for much smaller planets located in a habitable zone which is not too close nor too far from their star; planets which may be just like our Earth. ...

Pulkovo NEO Page . Central Astronomical Observatory at Pulkovo . ... Pulkovo Names of Asteroids . ... The list of Potentially Hazardous asteroids for the Earth with minimum interorbital distance D less than 0.05 AU and absolute magnitude H not more than 22.0. The osculating orbital elements of Potentially Hazardous Asteroids. These elements are adopted from the MPCORB catalog ( http://www.minorplanetcenter.org/iau/MPCORB.html ). ...

The approaches mentioned in the section title belong to one family which is called in Newton's book [ 56 ] the short waves or high energy approximation (HEA). It means the scattering by soft particles (or potentials) in the case of the wavelengths short in comparison with the particle size (or correspondingly the case of scattering of high energy particles by the potentials). ...

... Unsafe act - a behavioral departure from an accepted, normal, or correct procedure or practice which, in the past, has produced injury or property damage or which has potential for doing so in the future; an unnecessary exposure to a hazard; conduct reducing the degree or safety normally present in an activity. ... Any hazardous unsafe condition, or act that presents a situation of imminent danger to life and/or property requires urgent action. ...

This image shows a comparison of the potential habitable space available on Earth, Mars, Europa, Titan, and Enceladus. The green spheres represent the global volume with the right physical environment for most terrestrial microorganisms. ... Enceladus has the smallest volume but the highest habitat-planet size ratio followed by Europa. ... Mars and Europa are the best compromise between potential for life and accessibility. ...

Measuring system: (1) is alternating voltage source, connected to transmitting electrode, (2) is phase sensitive voltmeter, connected to receiving electrode, (3) is grounded shield, (4) is object under imaging, (5) is unperturbed electric field lines connecting transmitting and receiving electrodes. ...

... Cavendish Astrophysics . Cavendish OptInt: . Optical Interferometry . ... Format Spec. ... This is the webpage of the Working Group on Optical Interferometry Data Standards, part of IAU Commission 54 (Optical Interferometry). The near-term goal of the working group is to develop enhancements to the OIFITS data exchange standard, in particular: . ... John Young (MROI) . ... The Cavendish optical interferometry web pages are maintained by John Young <jsy1001 (at) cam.ac.uk> . ...

Modules | ... Apache HTTP Server Version 2.4 . ... Cookie based session support . ... session_cookie_module . ... The session modules make use of HTTP cookies, and as such can fall victim to Cross Site Scripting attacks, or expose potentially private information to clients. ... Name and attributes for the RFC2109 cookie storing the session . ... The SessionCookieName directive specifies the name and optional attributes of an RFC2109 compliant cookie inside which the session will be stored. ...

The XXVIII RadioAstron Meeting . ... November 18, Tuesday Meeting in ASC - Joint Working Groups Meetings . ... 9:00 - 13:00 Ballistic and Navigation, Mission Operations, Science Program . ... E.Fomalont, J.Romney (20 min) . Problems in development of technique to schedule science experiments in RadioAstron mission . ... Action items of the RISC meeting #27 and teleconferences . ... General status of the mission . ... Preparation of agenda/topics for the executive (RISC) meeting 20 Nov (30 min) . ...

... Objectives of the study . To survey and evaluate the technical and economical feasibility of European initiatives by start-up companies, for privately-funded crew vehicles for commercial human space flight. ... New commercial markets, among them space tourism, have a great potential to become major drivers in space technology development. This study aims at the assessment of the feasibility of European initiatives to address these new markets through the development of crewed space vehicles. ...

The potential of plasma By Lisa Tidwell Astronaut Franklin Chang-Diaz, Director of the Advanced Space Propulsion Laboratory, works on the VASIMR engine. jsc2003e49523 Photo by James Blair Scott Winter, from Safety, Reliability & Quality Assurance, makes adjustments on the VASIMR. jsc2003e49525 Photo by James Blair A T A GLANCE HOW THE V ASIMR ENGINE WORKS The VASIMR engine works through a set of three linked magnetic cells. ... This plasma is what drives the rocket engine. ...

Optimal transportation, curvature flows, and related a priori estimates Alexander Kolesnikov Moscow 2010 1 Curvature flow Shrinking family of (convex) surfaces At, where every point x A on the curvature of A at x x = -K (x) · n(x). Here K (x) is the (Gauss) curvature of At at x. Approaches to the curvature flows · 1) Solving a parabolic nonlinear equation with smooth data ( R.S. Hamilton, R. Huisken .. ... curvature flow x = -td where t = (x). ... C1(M ) sup | ... Let F (r, ) be a smooth function. ...