Next: A Universal Diagram for Up: ``Ecology'' of Magnetic Rotators Previous: The Corotation Radius . The interaction of a magnetic rotator with the surrounding plasma to a large extent depends on the relation between the four characteristic radii: the stopping radius, , the gravitational capture radius,   , the light cylinder radius,   , and the corotation radius,   . ... Hence, the classification of the interaction regimes may well mean the classification of magnetic rotators. ...

... Because of the low conductivity, the magnetic coupling is weak and depends critically on density, temperature, ionisation rate and charged species. ... Implications When the Hall regime dominates near the midplane and ambipolar diffusion is dominant closer to the surface, a thicker layer of the disc is unstable to MRI perturbations and modes grow faster than under the ambipolar diffusion approximation. ... Right panel: For weak coupling, Hall limit perturbations grow until vA/cs ~ 2.9. ...

SPACE WEATHER . The response of our space environment to the constantly changing Sun is known as space weather. ... Some of the most dramatic space weather effects occur in association with eruptions of material from the solar atmosphere into interplanetary space. ... Space weather disturbances are generally caused by solar storms. ... the Sun. ... Every object in the solar system experiences the equivalent of Earth's space weather, although its detailed characteristics differ from place to place. ...

The MOD and IOPT parameters value depend of the external magnetic field model (MOD), used during magnetic mapping and IOPT version (IOPT = Kp + 1), see the table: . MOD . External model . IOPT range . ... N.A.Tsyganenko, Planet. Space Sci., ... N.A. Tsyganenko, A magnetospheric magnetic fields model with a warped Tail current sheet: Planet. Space SCI., ...

... Laboratory . ... webmaster@izmiran.ru . ... Institute of Terrestrial Magnetism, Ionosphere, and Radiowave Propagation, Russian Academy of Sciences, Troitsk, Moscow region, 142190 Russia . e-mail: karp@izmiran.ru . ... Since the MIT shape strongly depends on magnetic activity, quiet conditions (1 <= Kp <= 3) were selected to study the MIT shape diurnal variations; i.e., very quiet and slightly disturbed conditions were not considered. ... DEPENDENCE OF THE MIT SHAPE ON MAGNETIC ACTIVITY . ...

This page provides explanatory text for the dials shown on the Rice Current Solar Wind Conditions and Current Solar Wind Conditions (Dials Only) webpage. These dials use the last good received set of measurements from the Real Time Solar Wind package on the Advanced Composition Explorer (ACE) spacecraft. ... Measured) This quantity is the number of solar wind protons per unit volume as measured by the ACE Solar Wind Electron Proton Alpha Monitor (SWEPAM) . ... It is measured by ACE/SWEPAM. ...

ChangeLog for rgsspectrum =============================== Version 2.6 - 2003-04-22 (CG) ----------- + C++ compliance increased (required by gcc3.2) + DEPEND changed (dal instead of dali) Version 2.5 - 2002-08-21 (UL) ----------- + now DEPENDs on package sas Version 2.4 - 2002-07-08 ( JDR ) ----------- - requires cal-3.142 - BACKSCAL in HTR mode is now computed using the model background distribution from the CCF Version 2.3 - 2002-05-29 ( ...

Dynamical chaos in the problem of magnetic jet collimation O. Yu. ... In the paper of Bisnovatyi-Kogan (2007) magnetic collimation resulting from torsional oscillations of a cylinder with elongated magnetic field and periodically distributed initial rotation around the cylinder axis was considered. ... Space and time periods of oscillations depend on the conditions of jet formation: the length-scale, the amplitude of the rotational velocity, and the strength of the magnetic field. ...

Position Switching Separation Tolerance with Arecibo in L-Band Travis McIntyre The University of New Mexico July 2010 Revised December 2013 Abstract The blocked telescope aperture at Arecibo creates standing waves in the bandpass around 1MHz. ... Test observations with Arecibo in L-Band show that position switching effectively removes standing waves for separations of one half FWHM or less. Standing waves remain for separations of one FWHM, increasing the rms of the baseline by 20%. ...

SPECTRUM ANALYZER OF MAGNETIC PHENOMENA SAMW . Spectrum analyzer allows onboard computation of electromagnetic waves spectra registered (observed) in the ionosphere and magnetosphere in the ELF/VLF frequency band. ... It consists of magnetic antenna, preamplifier, 16 bit sigma delta AD converter, DSP processor and telemetry interface. ... The channels of lower frequencies are averaged and transmitted with lower repetition rate so the telemetry volume is reduced. ... Dynamic range: 90 dB . ...

... To determine a lower limit to the sensitivity of current observations to measurements of NS surface temperatures, we have used data from the Einstein Slew Survey (Elvis et al. 1990) to establish temperature limits for 275 pulsars which received nonzero exposure during the survey. ... Filled squares correspond to pulsars actually detected in the survey data; the smaller symbols correspond to upper limits to the count rates. ... Click here for plot of x-ray data vs. cooling curves. ...

Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums . ... Depends . Forum List | ... Post Message | ... Posted by Rick Crockett on April 3, 2004 23:11:37 UTC . ... Correctamundo - rickcrockett - April 5, 2004 - 16:42 UTC . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... 1993: . ... It was shown that the degree of the drop in turbulence depends on the magnetic field strength and the fact that it is completely suppressed at the field strengths of 4-5 kG. As a consequence, there arise the conditions of unimpeded diffusion of chemical elements under the influence of radiation pressure, so the degree of chemical anomalies depends on the magnetic field strength. ... Archive . ...

... This effect is visible in Figure 4.3 which shows a logarithmic stretch of the image resulting from a 100s exposure on a star of V magnitude 2.6 through filter F502N in the PC. Extreme overexposure of the Loral CCDs is not believed to cause any permanent effects, and therefore the WFPC2 does not have a bright object limit. ... Several other artifacts that are common in saturated stellar images are also obvious in Figure 4.3 . ... Figure 4.3: Saturated Stellar Image Showing Horizontal Smearing. ...

... Type some text using type tool. Duplicate the image ( Image/Duplicate.. ... Switch to second image and blur it using gaussian blur ( Filter/Blur/Gaussian Blur.. Set setting to 4.0 (should be enough for glow, but you might increase or decrease the value depending on the size of the type) . ... We almost have the lucky winner, now time to play with colors Go to Image/Adjust/Hue/Saturation.., click Colorize checkbox and set Saturation to 35. ...

Short Notes phys. stat. sol. (a) K2 1 K21 (1975) 27, Subject classification: 18.2: 21.1; 21.1.1 Solid State Physics Institute, Academy of Sciences of the USSR, Chernogolovka The Effect of Pressure on the Curie Points of Fe-Ni-Cu and Fe-Ni-Mn Alloys BY V.E. ANTONOV, G.T. DUBOVKA, and E.G. PONYATOVSKII There is a series of papers on the effect of pressure on the Curie points T of C Fe alloys with other transition elements. ... The dependence of the Curie points on pressure is linear. ... 1 Fig. ...

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

... IC 443 supernova remnant 10 / 37 IC 443 ­ 2MASS 11 / 37 SNR E0102-72 12 / 37 Protostellar jets 13 / 37 Jump Conditions unshocked gas at rest shock frame · Conser vation of mass, momentum and energy fluxes across shock front v B2 8 P B2 v2 + + - 1 4 Bv v2 + P + 1 2 v 14 / 37 Strong shocks · For v s vA , cs and 1 the jump conditions reduce to 2 B2 v1 + 1 = = =4 1 B1 v2 - 1 T2 2 3 mvs 1.4 в 10 16 k 5 (for = 5/3 ... The shock then collapses with the loss of internal pressure support (4). ...

... This year's most powerful solar flare was photographed by TESIS telescopes in the southern hemisphere of the Sun on July 5th, 2009. ... Events of such power are unique and are only observed during maximal solar activity. ... For two months, all the activity of the new solar cycle was connected with areas of this belt, including the first solar flares and coronal mass ejections of the year. ... Nevertheless, this year's largest solar flare occurred in the southern belt. ...

... Coronal Hole . ... What cosmic wallpaper is on the sky? ... The Coma Cluster of Galaxies . ... Each of these galaxies houses billions of stars - just as our own Milky Way Galaxy does. ... Cen A is a giant elliptical galaxy a mere 10 million light-years distant with a central jumble of stars, dust, and gas that probably hides a massive black hole. ... The result, shown above, is the most complete sky map of the most common visible light emitted from the most abundant element in our Galaxy: hydrogen. ...