... the radiative transfer equation (RTE) for the randomly-irregular magnetized plasma has been derived on the base of general grounds of the multiple scattering theory . ... Solutions of several absolute tasks of the scattering theory have been obtained (on the optical depth of the ionospheric plasma layer, on the value of radio wave anomalous attenuation, on anomalous refraction, on the backscattered signal intensity for the source being placed within a plasma layer). ...

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... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

... Laboratory and theoretical modelling of the UV bump on the interstellar extinction curve is a very popular topic in dusty investigations. ... feature is illustrated by Fig. 10 where the profiles were calculated using the model of graphite spheres. Figure 10: Normalized extinction efficiencies for graphite spheres. ... The lower panel shows the summary extinction of two graphite spheres with radii and (from upper panel) taken in equal proportions. ...

... 2014 October 6 . Space Station Detector Finds Unexplained Positron Excess . ... Explanation: Where did all these high energy positrons come from? The Alpha Magnetic Spectrometer (AMS-02) onboard the International Space Station (ISS) has been meticulously recording how often it is struck by both high energy electrons and positrons since 2011. ... Follow APOD on: Facebook , Google Plus , or Twitter . ... About APOD | ...

... Readout Modes and Read Noise ----------------------------- The detector may be read out using Correlated Double Sampline (CDS), Multiple CDS (MCDS, a.k.a. Fowler sampling), or up-the-ramp (UTR) modes. ... Read noise is about 11 e- per CDS read. ... A read noise of about 2 e- is achieved for 88 reads (130 s integration time), based on test data taken in early Feb 2013. ... All exposure times are quantized to be multiples of this, so the possible exposure times are 1.45 s, 2.91 s, 4.35 s, and so on. ...

... Credit Copyright: Ron Garan , STS-134 Crew , Expedition 28 Crew , NASA Explanation: Where did all these high energy positrons come from? The Alpha Magnetic Spectrometer (AMS-02) onboard the International Space Station (ISS) has been meticulously recording how often it is struck by both high energy electrons and positrons since 2011. ... The excess may have a very exciting and profound origin -- the annihilation of distant but previously undetected dark matter particles. ...

... Neutral hydrogen observations of the spiral galaxies NGC 6221 and NGC 6215 with the Australia Telescope Compact Array (ATCA) reveal a wide, two-stranded bridge of at least 3 x 10^8 Msun which can be traced between the two galaxies over a projected distance of 100 kpc. ... The color figure below shows the HI emission (blue) in the bridge velocity range overlaid onto an optical image. ... A tidal HI bridge is visible between NGC 6221 and its brightest neighbour, NGC 6215 (v_sys = 1555 km/s). ...

The Robinson Schools Lecture will be delivered in the Royal School Armagh, College Hill, Armagh, at 2.00 pm on Friday, 21st November 2008. ... Pupils should plan to arrive at the school by approximately 1.30 pm and proceedings should be finished by approximately 3.00 pm. ... Schools may also wish to consider sending a party of senior pupils to the Observatory's biennial Robinson Lecture "God and the Universe", which is to be held at 8.00 pm, Thursday 20th November, in the Armagh City Hotel, Armagh. ...

... The handouts, examples sheets etc. for this course will be available the course page of the Cavendish Teaching website, for registered users. ... As the course progress, below I will put links to resources on the Web that relate to various topics discussed in the lectures, as the course progresses. Some are links to published papers, the full text for which is either freely available, or should be available via the University's subscription, if accessed from cam.ac.uk addresses. ...

Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... Irvin M. Winer . ... Site Map . ... Hint : Find and stay on Arizona State Route 83, which bounds our property). Use the interactive map below or use our GPS position N31 39' 56.08" W110 36' 06.42" (or 31.665578N, 110.601783W). ... From Tucson, take I-10 east about 20 miles to Exit 281, which is marked "State Route 83 Sonoita/Patagonia". ... Go three miles, staying on the paved road of State Route 83. ... 2013 Winer Observatory. ...

home events . SEARCH ASP SITE: Match ALL words Match ANY word . ... Public Lectures . ... Special Events . Kepler Mission Planet Discoveries . NASA Ames Research Center . ... Scientists involved with the search for planets around other stars are gathering at NASA Ames Dec. 5 - 9 for a technical conference devoted to the Kepler spacecraft discoveries. Tuesday evening, Dec. 6th, there will be a public event from 7 to 10 pm at the NASA Ames Research Center in Mountain View. ... events | ...