... The dayside auroral precipitation consist of magnetosheath related boundary layer precipitation, and plasma sheet related BPS/CPS precipitation (extensions of the nightside precipitation regions). ... For example, the much lower fluxes from the LLBL region when compared to the cusp are compensated by the bidirectional electron beams found in the LLBL: the precipitating energy fluxes in the LLBL and the cusp are not that different. ... directly through the cusp and plasma mantle . ...

Next: C.S. Jeffery, Research Astronomer Up: Research Previous: J.E. Chambers, Research Astronomer Contents . ... We examine spectral time-series of two lower-chromospheric lines observed with SUMER/SOHO (N I and C II ). ... Two examples of explosive events observed with SUMER/SOHO in transition region spectral lines are reported here; one detected in C IV 1548?, in a region within the northern polar coronal hole, and the other in O VI 1032?, in an active region. ...

... Direct Observation of Extra-Solar Planets with an Infrared Interferometer . ... Current . Missions . ... Research . ... Direct observation of such extra-solar planets with an infrared interferometer is a difficult task because of the very high dynamic range required (typically 3?104 to 3?105), but not impossible if a very careful spatial filtering and calibration is imposed upon the recombined beams. ... We propose an observing strategy to monitor hot extra-solar planets of the 51 Peg class. ...

SKA-3 instrument consists of two energy-angle ( EA ) electrostatic analyzers and two energy-mass ( EM ) time-of-flight analyzers. ... Here you can find more details about SKA-3 instrumentation set. ... Case 218 . ... satellite's trajectory in geomagnetic frame ( blue coloured), UFSIPS scan location and observation moment ( red coloured), interval of the SKA-3 observations ( green coloured) . ... a view of the Nothern polar region at the moment of UFSIPS observations, the scan location is red coloured. ...

Next: Rotation Periods of ZAMS stars Previous: T Tauri Stars . ... The first attempts to directly measure periodic modulation of T Tauri stars occurred in the early 1980s. Rydgren & Vrba (1983) observed four PMS stars using photoelectric photometry over a period of seven consecutive photometric nights. ... Because the spot lifetime is much longer than the rotational period, the observed effect will be a modulation of the light from the star synchronously with the rotation period. ...

... The results of radio observations of GRB 080319B in the spectral range of 8.45 GHz are presented. ... Key words: Gammaґrays ґ bursts: observations ґ radio: individual: GRB 080319B 1 Intro duction Gammaґray bursts (GRBs) are the most luminous explosions currently known in the Universe. ... Smooth angular scanning was used not only in GRB 080319B observations, but to specify the primary standard source radio flux density as well (Kharinov et al., ...

Direct Electron Imaging Using Back Thinned CCDs . ... Figure 5. Measured CTF for GaAs SI502AB EBCCD for various acceleration energies @ 1*10 -4 footcandles faceplate illumination using a 590 nanometer wavelength source. ... Contrast transfer function was measured on both EBCCD tubes as a function of both acceleration voltage and light level. ... A difference frame of two identical flat field frames at a 'high' light level was used for the measurement of variance versus mean in the EBCCD tube. ...

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... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . ... des pages consacr?йes ?а la publication de vos photos Mais c'est aussi une vraie communaut?й avec laquelle partager votre passion et nourrir votre curiosit?й. Accueil La chute dтАЩun corps c?йleste sur Jupiter vue en direct . ... Celui du 17 mars 2016 est donc le 4?иme impact observ?й directement sur Jupiter. ... 25/03/2016 - Exomars est-elle pass?йe tout pr?иs dтАЩun ?йchec ? ... Etat du ciel...

A long Chandra observation of Tycho has revealed a pattern of X-ray "stripes" never seen before in a supernova remnant. The stripes are seen in the high-energy X-rays (blue) that also show the blast wave, a shell of extremely energetic electrons. ... The stripes may provide the first direct evidence that a cosmic event can accelerate particles to energies a hundred times higher than achieved by the most powerful particle accelerator on Earth. ...

... ,E_=v_B_z,B_z0 Light cylinder at RL U = electric voltage created by rotating BH I = large scale current I U LK Centrifugal acceleration in BH magnetosphere Assume `reasonable' B and E fields, from current I : Bz = 0 = v/v 1 Motion of a test particle P ( ) Light cylinder Pz() P() z() Here = 0.01 and = rc,i/RL = 0.01 Growth of particle Lorentz factor ( ) log k At light cylinder : = Here with initial value is the absolute maximal reachable by this process (ie no ...

... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Staff list | ... Email discussion lists . ... Information & tools for observers . ... Australia Telescope Online Archive (ATOA) . Observers archives tools & information . ... VLBI . ... This message : [ Message body ] [ More options ( top , bottom ) ] . ... This email may contain private or sensitive information. ... Next message : shoriuchi_at_email.protected: "Tid 70m S-band frequency coverage" . ...

... Main page . ... Filters . ... Direct images . ... Back to SAO web page . Last update: 21 Nov 2015 . This page is designed by A.V. Moiseev . ... The SCORPIO-2 project: . ... The direct images are obrained in the 6.1х6.1 arcmin field-of-view with any available filters ...

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Towards a direct measurement of the expansion history of the Universe . ... Science Users Information . ... Observing with ESO Telescopes . ... Science Software . ... ESO Science Newsletter . ... The E-ELT will allow us, for the first time, to perform a direct and dynamical measurement of the expansion history of the Universe. ... Return to list of thesis topics . ...

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

... In a meeting in California two weeks ago, unpublished results were presented indicating that most of the energy in our universe is not in stars or galaxies but is tied to space itself. ... A Sky Full Of Hydrogen . ... Interstellar space is filled with extremely tenuous clouds of gas which are mostly Hydrogen. ... The orange dot in the above false-color drawing represents the current location of the Sun among local gas clouds in the spiral Milky Way Galaxy. ... M104: The Sombrero Galaxy . ...

... Binary orbits in the acceleration/period plane . Circular Orbits . ... We first present the equations for the period and acceleration of a pulsar in an eccentric binary system as a function of its position in the orbit. ... In Freire, Kramer & Lyne (2001) (from where most of this text and following equations are taken), we describe in more detail how circular binary orbits can be determined from the observed periods and accelerations of the pulsar. ... where is the orbital period of the binary. ...

Next: ВВЕДЕНИЕ Up: ПРЯМОЕ НАБЛЮДЕНИЕ АНИЗОТРОПНОЙ Previous: ПРЯМОЕ НАБЛЮДЕНИЕ АНИЗОТРОПНОЙ . M.E. Prokhorov, & K.A. Postnov . ... The kick velocity acquired by a neutron star at birth lies within the range 50-500 km/s. Mike E. Prokhorov . Wed Aug 21 19:54:24 MSD 1996 ...

Magnesium : a new probe of the thermosphere / exosphere region V. Bourrier, A. Lecavelier des Etangs, A. Vidal-Madjar Institut d'Astrophysique de Paris/CNRS, Paris, France Atmospheric escape from HD209458b Transit observations in the Lyman- line of neutral Oxygen, carbon and silicium were also found in its Schlawin et al. 2010), carried away to high altitudes heavy species at high altitude: neutral ... 2003, Nature, 422, 143 Vidal-Madjar, A., DИsert, J.-M., et al. ...

... Research objects and scientific purposes . Space scientific program includes development and launch of two supersmall spacecrafts "Universitetskiy" and "Kompas-2" intended for monitoring of radiation conditions near the Earth. ... All the studies conducted in the near-Earth space are characterised by strong radiation fields. ... The circular polar orbits, which cover all the near-Earth space, are the most favorable for comprehensive studies of the radiation conditions near the Earth. ...