Next: Characteristics of the Up: The Epsilon Aurigae Previous: The Epsilon Aurigae . ... Epsilon Aurig? is an F0 Ia star with an enigmatic companion which partially eclipses the visible star for 2 years every 27.1 years. ... The eclipse light curve has a long, flat minimum (Figure ), implying that the secondary is not appreciably convex. ... We develop hydrostatic models for the Aurig? secondary in Section D.3 and present synthetic eclipse light curves calculated using these models in Section D.4. ...

reu-program@naic.edu . ... The Arecibo Observatory in Puerto Rico invites applications for its undergraduate summer research progrm. Students selected for the program will work with staff scientists on projects related to ongoing research or instrumentation development. ... Applications for the REU program should be made via the online form. ... After email verification, we will send you a link to upload your supporting documents. ... Online Application Open . ... Online Application Deadline . ...

... Tonight's Sky . ... Sky this Month . ... space physics . ... The Sky This Week: April 1 - 10 . ... Sky this Week . ... Sky Events . Get to Know the Night Sky . Tour the Deep Sky . Sky Guide . ... Observing springtime deep-sky objects with a large telescope . ... Johns Hopkins University Applied Physics Lab, Laurel, Maryland . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... 11 Yellow-Green (78% transmission): Contrasts well with the red and blue characteristics of surface features on Jupiter and Saturn. ... 82A Light Blue (73% transmission): Useful on the Moon, Mars, Jupiter, and Saturn, this subtle pale blue filter enhances areas of low contrast while avoiding significant reduction of overall image brightness. ... Meade Series 4000 Photo-Visual Color Filters may be ordered individually or in the following sets: . ... Meade Series 4000 Broadband Nebular Filters . ...

... Prof. V.G. Farafonov, chair of Applied Mathematics . ... Prof. V.V. Karjukin . ... Voshchinnikov N.V., Farafonov V.G. (1993) Optical properties of spheroidal particles. ... PDF file ] . ... PostScript file ] . Farafonov V.G., Voshchinnikov N.V., Somsikov V.V. (1996) Light scattering by a core-mantle spheroidal particle. ... Farafonov V.G., Il'in V.B., Prokopjeva M.S. (2003) Light scattering by multilayered particles: a set of methods. ...

This page lists publications by members of the optical interferometry team related to optics technology, particularly optical and near-infrared detectors. ... SPIE require us to publish the following statement: . ... This paper was (will be) published in Proc. SPIE and is made available as an electronic reprint (preprint) with permission of SPIE. ... 43 , 2651+, 2004. ... In J. W. Beletic and J. D. Garnett, editors, Optical and Infrared Detectors for Astronomy , volume 5499 of Proc. SPIE , pages 203+. ...

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... Elena Seifina and Lev Titarchuk "On the nature of the compact object in SS433: observational evidence of X-ray photon index saturation" 2010, Astrophysical. ... A.M. Cherepashchuk, R.A. Sunyaev, E.V. Seifina, E.A. Antokhina, D.I. Kosenko, S.V. Molkov, N.I. Shakura, K.A. Postnov, A.N. Timokhin, I.E. Panchenko "INTEGRAL Observations of SS433: Analysis of Precessional and Orbital X-ray Periodicities" 2007, 6th INTEGRAL Workshop, Eds. S. Grebenev, R.A. Sunyaev, p.411 (astro-ph/0610235) . ...

The Arcetri Spectral Code for thin plasmas . E.Landi M.Landini 1998, A , 133, 1 . CHIANTI - an atomic database for emission lines. ... E.Landi, M.Landini K.P.Dere, P.R.Young, H.E.Mason, 1999, A , in press . ... E.Landi M.Landini, 1998, A , 340, 265 . ... E.Landi, G.Del Zanna, E.R.Breeveld, M.Landini, B.J.I.Bromage, C.D.Pike, 1998, A , in press . ... M.Landini, A.Brkovic, E.Landi, I.Ruedi, S.Solanki, 1998, Sp.Sci.Rev., in press . ... E.Landi, H.E.Mason, M.Landini, 1998, Sp.Sci.Rev., in press . ...

Valentina Klochkova .

... Image Quality of the VLT . Total Optical Control . First light for the ESO VLT unit telescope 1 occurred during the workshop. ... The image shown (Figure 1 ) here was obtained with the VLT on May 16, 1998, in red light (R band), i.e. while the mirror was still uncoated. ... In this diagram (FIgure 2), the measured image quality of the VLT UT1 astronomical images is plotted versus the ``seeing", as measured by the Seeing Monitor, a small telescope also located on top of the Paranal Mountain. ...

... Kepler's 3rd Law . 21a.Applying 3rd Law . 21b. Fly to Mars! (1) . 21c. Fly to Mars! (2) . ... For circular orbits around Earth, we found . ... The distance of a satellite from the center of Earth in meters is an inconveniently big number, even before we raise it to the 3rd power. ... The ratio r' = (r / R E ) is the orbital distance measured in units of the Earth's radius. ... 25 638 838) = 5063.5 From this . ... This is the practical form of Kepler's 3rd law for Earth satellites. ...

... Excel file with explanations how to fill; please, save the table in format not later Excel-1997-2003.) ... Rules and Regulations for a participant of the Olympiad that have to be translated into native languages of participants (if using Word, please, save the translation in format not later Word-1997-2003), attention for additions during last years ( blue and red text ): . ... Dr. Michael G. Gavrilov, Founding Chairman and Coordinator of the Asian-Pacific Astronomy Olympiad (APAO) . ...

... Persons interested in participating the MSS-09 Conference should send applications before April 25, 2009 to IOC to one of the following e-mail addresses : . ... Preliminary title of the talk . ... Postal address . ... E-mail address for further communications . ... The detailed preparation instructions the full volume papers submitting and their publication will be sent later. The visas info and hotel accommodation one will be submitted later. ...

The deflection of light induced by the Sun gravity field and measured with geodetic VLBI (1) Titov O., (2)Girdiuk A. (1) Geoscience Australia, Australia; (2) Institute of Applied Astronomy RAS, Russia The Sun's gravitational field deflects positions of close objects in accordance with the formulae of general relativity. ... The geodetic VLBI technique is capable to measure the deflection of the light from distant radio sources anytime and around the whole sky. ...

The mosaic camera was mounted today in preparation for first light. The Gunn/Carr/Rockosi/Lupton team from PU were supported by French Leger/UW, Angie Prosapio and Steve Bastian from FNL, Mark Klaene and Jon Davis from APO, Alan Uomoto/JHU, and Larry Fiscelli/UC. ... Everyone monitors the progress of the mosaic camera as it is lifted in the saddle to the underside of the mirror cell. ... The camera is up in place. ... The camera mounted on the telescope and in position for first light. ...

NIST Spetial Publication 500-220 . Guide on Open System Environment (OSE) Procurements . ... An Open System Environment encompasses the functionality needed to provide interoperability, portability, and scalability of computerized applications across networks of heterogeneous, multi-vendor hardware/software/communications platforms. ... The Open System Environment concept has become ubiquitous throughout both the public and private sectors. ... ACQUIRING AN OPEN SYSTEM ENVIRONMENT 11 . ...

Next: About this document Up: Recommended reading Previous: I. Daubechies1992, . For a learn-from-the-practitioners approach, the reader might consult recent literature in his or her own field. Databases such as ISI Science Citations show over a hundred articles annually, and any recommendation we would make is bound to be obsolete by the time this pamphlet reaches the reader. ... Finally, as for many things, learn-by-doing may be the best approach. ... Mon Nov 13 10:51:25 EST 1995 ...

... ACCESSORIES . ... OEM COMPONENTS . ... ABOUT LOMO . ... MICROSCOPES . ... OEM OPTICAL COMPONENTS . ... MICROSCOPE APPLICATION GUIDE AND MODEL SELECTOR . ... LOMO stereo microscopes deliver crisp images for such demanding applications as industrial inspection, electronic component manufacturing, biological and botanical studies, classroom teaching, etc. ... LOMO manufactures the widest range of microscope accessories and components such as objectives, eyepieces, condensers, illuminators, stages, etc....

Zelmanov Memorial Seminar on Gravitation and Cosmology . ... Cosmology, Extragalactic Astronomy, and Applied Astrophysics . 01.03.2004-04.03.2004 . ... Gurevich A.V. (Chairperson) . ... Alexeyev S.O. Capaccioli M. Cherepashchuk A.M. Gerasimov I.A. Ginzburg V.L. (Nobel Prix 2003) . Giraud-Heraud Y. Fridman A.A. Longo G. Rubakov V.A. Starobinsky A.A. Zharov V.E. (Descart Prix 2003) . ... International School-Seminar Dark Matter, Dark Energy, and Gravitational Lensing, June 19-23, 2002, Moscow . ...