We present far ultraviolet and optical spectroscopy of the Extreme Utraviolet Explorer (EUVE) survey source EUVE J0702+129 revealing a composite KO star plus DA white dwarf spectrum. ... The EUV emission is dominated by the white dwarf, but the late-type star certainly contributes at higher energy. ... The present discovery as well as other recent ones demonstrate the existence of a large population of white dwarfs hidden by evolved companions (III-IV). ...

... Дни открытых дверей к юбилею САО РАН (12-14 апреля 2016 г.) . Международная конференция "Dark Ages and White Nights (Spectroscopy of the CMB)" (20-24 июня 2016 г.) . ... Международная конференция MULTI-SPIN GALAXIES - 2016 (26-30 сентября 2016 г.) . Международная астрономическая конференция "Физика звезд: от коллапса до коллапса" (3-7 октября 2016 г.) Архив . ... Подробнее.. ... 10.02.16 . ... БТА в реальном времени . ... Цейсс-1000 в реальном времени . ... Последнее обновление: 22/03/2016 ...

... You are here: start €Ё difx €Ё highspecres . ... difx:highspecres . ... largest read size to accomodate long FFTs maxReadSize = 40000000 # Correlate a 1 kHz portion of the input band centered on 4101.3 MHz ANTENNA FD { toneSelection=none filelist =fd. filelist addZoomFreq = freq@4101.2995 / bw@0.001 } ANTENNA KP { toneSelection=none filelist =kp. filelist addZoomFreq = freq@4101.2995 / bw@0.001 } ANTENNA NL { toneSelection=none filelist =nl. filelist addZoomFreq = ...

Active X-ray Optics for Generation-X, the Next High Resolution X-ray Observatory Martin Elvisa , R.J. Brissendena , G. Fabbianoa , D.A. Schwartza , P. Reida , W. Podgorskia , M. Eisenhowera , M. Judaa , J. Phillipsa , L. Cohena , S. Wolka , a Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge MA 02138, USA ABSTRACT X-rays provide one of the few bands through which we can study the epoch of reionization, when the first galaxies, black holes and stars were born. ... Figure 1. ...

Astronomy Picture of the Day . A Telescope Laser Creates an Artificial Star . ... 7.02.2005 . ... An artificial star. ... Therefore, astronomers have developed the ability to create an artificial star where they need it -- with a laser . ... Above, a laser beam shoots out of the Keck II 10-meter telescope on Mauna Kea in Hawaii in 2002, creating an artificial star. ... February 2005 . ... Publications with keywords: telescope - laser . Publications with words: telescope - laser . ...

... Europa lander", Moscow >12.02.2009 Outline Planetary instruments for in-situ chemical analysis Laser-induced plasma spectroscopy: principle, instrumentation, features GENTNER proposal of the LIBS instrument for the Europa lander mission State-of-the-art of the instrument Page 2 von Hoerner & Sulger GmbH Int. Symp. ... Page 3 von Hoerner & Sulger GmbH Int. Symp. ... Europa lander", Moscow >12.02.2009 Laser-Induced Breakdown Spectroscopy (LIBS): Principle Page 5 von Hoerner & Sulger GmbH Int. Symp. ...

The Sun 11 Solar radio bursts study with high spatial and temporal resolution V.A. Alexeev, A.F. Dementyev, B.N. Lipatov, V.F. Melnikov, M.B. Nechaeva, S.D. Snegirev, Yu.V. Tikhomirov Radiophysical Research Institute NIRFI, Nizhny-Novgorod, Russia Theoretical and experimental researches of the energy release fragmentation in solar ares need observations with high spatial 0.01 1 arcsec and temporal 1 ms resolution. ... Several VLBI stations all over the Russia were supplied by this set of equipment. ...

Optical Communication Experiment using Very Small Optical transmitter with SLR station National Institute of Information and Communications Technology, Japan Space Communications System Laboratory Hiroo Kunimori and VSOTA TEAM Sep 24, 2012 WPLTN Technical Workshop@St.Petersburg, Russia Table of Contents Backgound:HODOYOSHI Project JapaneseHODOYOHI= Reasonable Reliability Engineering to develop series of 50kg Satellite. ... How to share wavelength communication beam and ranging beams. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Space Flight . ... April . ... Posted on January 7, 2016 | ... Continue Reading.. Posted on June 29, 2015 | ... No Comments In November 2014, the European Space AgencyтАЩs washing-machine-sized investigation and analysis lander lab Philae, did something that no other automated probe had ever done before, it successfully landed on a [ ] . ... No Comments Comet C/2014 Q2 (Lovejoy) was discovered in August 2014. ...

The basic characteristics of the instrument are set by the aperture, focal length and resolution of the image forming lens, the dispersion of the spectrometer, and the sensitivity of the detector. ... The lens is internally focused, and maintains acceptable focus (2 pixels in the detector plane) over a typical spectral coverage of one grating setting. ... along the spatial dimension of a 25mm square detector in the final spectral image plane the 400mm lens is 3.2њ. ... Diffraction grating . ...

... In laboratory the design and a manufacturing techniques mirror aspherical optics are developed ("fokon", ellipsoid, aspherical mirror).Such optical elements are made of widespread aluminium alloys on the standard equipment without use diamond turning. ... Using: optical blocks of not image optical devices for transitions, collimation, focus (concentration) radiations in a wide spectral range from UV to IR. Focusing and collimation of light; . ... circle aperture/ring aperture; . ... Back Forward . ...

... A rough estimation is that in the United States there is one planetarium per 100,000 population, ranging in size from the Hayden Planetarium's 20-meter dome seating 430 people, to three-meter inflatable portable domes where children sit on the floor. ... Together dblo associates make a huge impact in the architecture, interior design and development arena in London. ... With the holidays around the corner what better way to spoil your family than with your very own private home cinema. ...

... Energy . ... The free ions and electrons in a plasma behave the same way. Knowing the temperature of the high atmosphere of Earth, or that of the Sun, we can calculate energies expected of ions and electrons found there. However, ions and electrons actually observed in space are often much, much more energetic, and may move at a respectable fraction of the velocity of light (300,000 km/sec or 186,000 miles/sec). ... Typical energy of an electron in the polar aurora. 40,000 ev . ... 50,000 ev . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Another method is to take very fast exposures of an object; in effect taking images faster than the seeing can blur the image. ... A third, relatively new method, is to try to detect just how the seeing is affecting the image, and actually warp the telescope mirror to compensate. ... The advantage of the second method is that it's easier to make many small mirrors than one big one. ...

RTT150 . Russian-Turkish 1.5-m Telescope . ... Telescope has two main foci (Cassegrain and Coude ) and allows to use six optical systems based on Ritchey-Chretien system with a common main mirror . At present scientific observations are being performed at the Cassegrain focus in main optical scheme with focal ratio of 1:7.7. ... flat . ... To use the Coude focus the removable flat diagonal mirror is also needed in the crossing point of declination axis and main optical axis of telescope. ...

... The project assumes creation of an international space observatory - the interferometer "Earth - Space - Space" in order to perform of astronomical investigations in millimeter, submillimeter and infrared regions with extremely high sensitivity (to a few nanoJanskies units of flux density in continuum spectrum) and extremely high angular resolution (to a parts of microsecond of arc or, possibly, nanosecond). ... radio-interferometric channels of the system "Space - Space", region 0.2 - 3 mm; . ...

... This page includes download links to all the videos as well as some plugins you may need to view the videos on your computer. ... Click on a link to view the video, or right-click (PC)/control-click (Mac) the link to download the file to your computer. ... Videos Plugins: . You will need the most up-to-date video-playing software on your computer. ... Sharing the Universe is based upon work supported by the Informal Education Division of the National Science Foundation under Grant no DRL-0638873. ...

... Light weight and low power consumption combined with nearly quantum limited sensitivity and a wide tuning range of the superconducting local oscillator make SIR a perfect candidate for many practical applications. Superconducting Integrated Receiver (SIR) [1] comprises on one chip a low-noise SIS mixer with quasioptical antenna, an Flux-Flow Oscillator (FFO) acting as a Local Oscillator (LO) and a second SIS harmonic mixer (HM) for the FFO phase locking. ...

... We address a question if globular clusters (GC) in a protogalaxy could for some time evolve chemically as isolated systems, enriching themselves with heavy elements produced in first supernova events that follow initial star formation. We determine both the critical mass of a protoglobular cluster that is needed to retain the ejecta of the very first supernova, and the critical energy (i.e., number of supernovae) that is needed to expel the residual gas from a cluster of a given mass. ...

... Make a new empty directory; you'll need about 6 megabytes; . ... Send some mail to me ( bill@nineplanets.org ) with the URL of your new copy and its physical location so I can update the mirror list; also let me know if you would like to receive email notifications of future updates. ... add some text to describe your site; . ... Several of the mirror sites are using the "mirror" package to keep their copies of TNP up to date automatically instead of waiting for me to send these notices. ...