Proposal Identification No.: ... Proposal Type: Urgent General Category: Astronomy Sub­Category: Optical Observation Category: Thermosphere Total Time Requested: 10 Hours Minimum Useful Time: 3 Proposal Title: Ionospheric modification using dual­frequency S­band beat modulation ABSTRACT: We attempt to create accelerated electrons near the F2 peak using S­band transmission of two frequencies separated by a frequency close to the critical ionopsheric frequency, fof2. ...

... 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. ...

A limit on the ultra-high-energy neutrino flux from Centaurus A Justin Bray For the LUNASKA collaboration Clancy James, Ron Ekers, Chris Phillips, Paul Roberts, John Reynolds, Rebecca McFadden, Ray Protheroe, Jaime Alvarez-MuЯiz, Justin Bray Outline: · Ultra-high-energy (UHE) cosmic rays neutrinos · Detecting UHE neutrinos · The lunar Cherenkov technique · Observations with the ATCA · Observations with Parkes · ASKAP and the future ... Detection Geometry Neutrinos are penetrating.. ...

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. ...

WFPC2 . Images: version1 , version2 . Catalogs: Version 1 HDF-S , HDF-N ;Version 2 HDF-S . STIS . ... NICMOS . Images: Camera 3 , V2 of psf-convolved STIS 50CCD on NICMOS . ... Images: WFPC2 FF , STIS FF ; Version2: WFPC2 FF , STIS FF , NICMOS FF . Catalogs: Version2 WFPC2 FF , STIS FF , NICMOS FF . ... Check the instrument specific technical pages for a description of the data products and the implemented data reduction steps: STIS , WFPC2 , NICMOS , Flanking Fields . ...

... Over the last decade the uninterrupted, high-resolution coverage of the Sun both from the excellent range of telescopes aboard many spacecraft and from ground-based instruments has led to a wealth of observations of small-scale dynamic events observed from the chromosphere to the transition region and corona. ... SoHO observations have further characterized many transient features, such as bi-directional jets, blinkers, coronal jets, and bright points. ...

AGP=Accelerated Graphics Port . ... 132 PIN EDGE CONNECTOR at the computer. ... Reserved* Ground . ... Ground . ... VCC 3.3 . ... Vddq 3.3 . ... AGP pinout at The Pin-Out directory . ...

Electron-Bombarded, Back-Illuminated CCD Sensors . For Low-Light-Level Imaging Applications . ... Damage to the gate structure oxide layers from keV level X-rays will likely result in increased dark current and decreased full-well capacity. ... Figure 14 shows the increase in dark current versus incident electron energies. ... The back-thinned CCD's 'lifetime' is defined, herein, to be a 50 electron per pixel increase in CCD dark current per 16.7 millisecond integration period. ...

... Up: Data Analysis and Processing Techniques . ... Also, a method for quality control of CCD observations is suggested. ... Everyone who observes a celestial object using a CCD detects moving celestial objects as a ``by product''. ... We hope that our investigations may be useful for near-Earth space control and also for searches of the moving celestial objects through analysis of old and new CCD frames obtained at any amateur or professional astronomical observatory. ...

Nowadays at the Department the experimental and theoretical investigations, including astronomical and ionospheric observations, active experiments with space vehicles are taking place. ... Solar Corona physics and erruptive phenomenae. ... Stellar astronomy. ... The Department has organized and put into practice more then 50 expeditions for observation of Solar ecllipces, aurorae polaris, comets, meteor streams, controlled space experiments, and also for investigations of geophysical characteristics. ...

... Basic Observables: Zero-differenced phase and code ionosphere-free combinations of global GNSS network stations, corrected by P1-C1 satellite code biases (cc2noncc), daily observations with 30 seconds sampling rate Sites coordinates : IGb08 reference frame coordinates and velocities Displacements: solid tides, ocean loading, pole tide loading (IERS 2010) Geometric model : Receivers antennas eccentricities, absolute receiver and ...

Supernova cosmology : legacy and future Bruno Leibundgut ESO Congratulations! for the discovery of the accelerating expansion of the Universe through observations of distant supernovae Supernova Cosmology · Required observations ­ light curve ­ spectroscopic classification ­ redshift · Required theory ­ cosmological model ­ ( supernova explosions and light emission) · ... 2009 Union2 data set (557 SNe Ia) Goobar & Leibundgut 2011 Supernova Cosmology ­ do we need more? ...

Next: GOCG Pre-Observation Products . Previous: RadioAstron Mission Element Overview . ... Observation Summary File (OSF) . GRT (Ground Radio Telescope) Schedule Files . ... How: The long-term schedulers will produce two files: GSTS-file (General Space Telescope Schedule) to be used by GOCG and LTS-file for all mission elements. ... What: The RSOG will produce schedule files for all GRTs participating in a particular observation, in the format required by each GRT. ...

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. ...

. Recent observations by NASAтАЩs twin Van Allen Probes show that particles in the radiation belts surrounding Earth are accelerated by a local kick of energy, helping to explain how these particles reach speeds of 99 percent the speed of light. // G. Reeves/M. Henderson

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

... ORAL SESSION . ... Registration /Coffee . ... Sergey Bogachev : Space solar investigations in the Lebedev Institute: from Sputnik-2 to future missions . ... Splinter session. S1 : SOLARIS mission proposal (chair - S.Kuzin) . ... Morning Coffee . ... The Sun from radio to gamma rays: new results from space and ground-based observatories (part 1) . ... Szymon Gburek : SphinX and XRT observations of active regions . ... Artem Ulyanov : Nanoflares in the quiet solar corona: a view from SDO/AIA . ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...