Restored velocity field of NGC 157 in the reference frame rotating with the pattern speed overlaid on the H_alpha image of the galaxy. ... The line-of-sight velocity fields of gaseous clouds in galactic disks of NGC 157 were analyzed by the method of reconstruction of 3D vector velocity field --- three components of velocities. ... This figure is produced with the help of software VORTEX developed in the Institute of Astronomy of the Russian Academy of Sciences. ... Back to Project Vortex. ...

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• Results scientific researchs 21
• High-resolution Near-infrared Study of the Deeply Embedded Young Stellar Object
• Bispectrum speckle interferometry and future long-baseline interferometry of

... Contacts: Evgeny A. Loupian, Dr. Sci., e-mail: evgeny@smis.iki.rssi.ru Sergey A. Bartalev, Dr. Sci., e-mail: bartalev@smis.iki.rssi.ru Web interface for burnt area mapping using Landsat data Stellar Tracker In 2013 IKI RAN together with the NPK "Electrooptics" completed the phase of the five-year research on studying the ways to build a stellar inertial navigation system (SINS) for aviation applications. ... Fig. 1 shows the SINS layout created on the basis of the astronomical camera. ... Fig.1. ...

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• IMAP-3 Results Page
• Main results of the experimental and theoretical research completed in 2009
• Electrons

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

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• Low Surface Brightness Galaxy Gallery
• Evidence for Dark Matter
• Astronomy Plus CCD Images of Galaxies

Abstract -- The strengths of magnetic fields in interstellar gas clouds are obtained through observations of the circular polarization of spectral line radiation. ... To infer information about these irregularities from the observational data, we develop statistical relationships between the rms values of the irregular component of the magnetic field and spatial variations in the circular polarization of the spectral line radiation. ...

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... 2014 July 21 . Spacecraft Rosetta Shows Comet has Two Components . Image Credit: ESA / Rosetta /MPS for OSIRIS Team ; MPS /UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA . Explanation: Why does this comet's nucleus have two components? The surprising discovery that Comet 67P/Churyumov–Gerasimenko has a double nucleus came late last week as ESA 's robotic interplanetary spacecraft Rosetta continued its approach toward the ancient comet's core. ... About APOD | ...

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• APOD: 2007 November 7 - The Sloan Great Wall: Largest Known Structure
• APOD: 2006 November 9 - Halo and Hexagons
• APOD: 2005 December 5 - Ice Fountains Discovered on Saturns Enceladus

... astro-ph . ... We present the goals and preliminary results of an unbiased, near-infrared, narrow-band imaging survey of the First Galactic Quadrant (10deg<l<65deg ; -1.3deg<b<+1.3deg). ... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ...

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... INSTRUMENT: SurveyCam FILTERS: Stromgren uvby, 2" square COMMENTS: remote observations are expected BRIEF SCIENCE JUSTIFICATION: Last decade numerous faint structures at the periphery of regular galaxies, as arcs, tails, or streams, have been discovered (see e.g. Martinez-Delgado et al., ... The broad-band photometry is used for observing the faint structures, but it does not allow to break the age-metallicity degeneracy efficiently. ... The standard Stromgren set is available at APO. ... 2014). ...

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• Primary mirror support
• Weather Summary

... Velocity allipcoid parameters as functions of heigt above the Galactic disk for the complete sample of F -stars (left) and a young ( t 3 Gyr) metal-rich ( [Fe/H] -0.13 ) group (reght). ... next figure | previous figure . ...

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• Vladimir Marsakov Abstracts

A.F.Kholtygin, J.C. Brown, J.P.Cassinelli, S.N.Fabrika, D.N.Monin, A.E.Surkov, . Structure and variability of hot star winds", . ... We propose the three-phase model for hot star winds and calculate the X-Ray line emission of hot component of wind in a comparison with a XMM-Newton X-Ray spectra of O4f star zeta Puppis. The results of high-resolution spectroscopy for some bright O-stars are also presented. The line profile variability of bright O-stars 19 Cep and lambda Ori A is detected. ...

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• Kholtygin et al., AZh (2006)
• INTAS project 2003
• Extinction properties (transmitted radiation)

This home page belongs to small group of scientists working at . Sternberg Astronomical Institute which is a part of Moscow State University . ... Электронная библиотека научно-технической и художественной литературы (доступна только из ГАИШ) . ... Local staff . Dr. Edward Kononovich (konon -at- sai.msu.ru), Associate Professor . ... Dr. Sergey Ayukov (asv -at- sai.msu.ru), Research Fellow, Webmaster of the group . ... Joint seminar of Solar Studies Structure Group and Solar Photometry Group . ...

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• ApSA courses
• Coaxial jets
• Dynamic HTML in Communicator

... The derived position here agrees with the position from recent ATCA observations, RA=15h 01m 34.74s, Dec=39 18 39.2" (Tasker, private communication) which found the source unresolved. Because of the relatively large position offset, the reality of the fainter component 0.12" to the west is somewhat in doubt. However, the ATCA centroid position is offset by 0.3" to the south-east of the VLBA position, suggesting that the faint component may be part of more extended structure. ...

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... Created: 23 February 2001 . ... SOFTWARE MAINTENANCE MANUAL . ... 9 January 2001 . ... Note: in the final document, the table of contents will be to third level] . The Software Maintenance Manual describes the procedures for installation and maintenance of the software for the Gemini Near-infrared Integral Field Spectrograph (NIFS). ... Section 19.4.3 of the document “Programmatic Requirements for Gemini Instrumentation Development” states the requirements for the Software Maintenance Manual . ...

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• Marc White - Astrophysicist - The Australian National University
• GSAOI Component Supplier Links Page
• GSAOI Magellanic Cloud Planetary Nebulae Science Page

... Let $Y$ be an affine algebraic variety, and let $X$ be a smooth resolution of singularities of the variety $Y$. Singularities of $Y$ are said to be symplectic if $X/Y$ carries a closed holomorphic 2-form which is non-degenerate outside of the exceptional set. ...

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• Finite free resolutions (Fall 2001)

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope 's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases Publication SSRT - Siberian Solar Radio Telescope . ...

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... Radio-band image showing a linear jet structure X-ray Image with a hint of a jet Many empty pixels with 0 counts Statistical Model · · photon counts distributed on a grid of pixels Two Poisson processes to represent: ­ known aspects of the image - baseline component · background, point sources, diffuse structures ­ Unknown image features - added component · Diffuse emission, extension, a ...

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• HEAD 2010: Chandra's Ultimate Angular Resolution
• Pat Slane: Pulsar Papers
• The AstroStat Slog Blog Archive [ArXiv] component separation methods

The infrared satellite IRAS. The main task of the IRAS telescope was the search of a longwave infrared radiation, composing the maps of the sky in the infrared range. IRAS telescope helped to discover new galaxies, to study the properties of the dust particles in our galaxy, which opens the character of a star hiding somewhere in the sky. ... For 6 months of observation it discovered 6 new asteroids, allowed to find out the nature of the dust zones between Mars and Jupiter orbits. ...

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• siriysphotoe
• antichnoste

... Sunspots . ... Solar cycle . ... Solar Corona . Solar magnetic fields . Solar wind and heliosphere . ... webmaster@izmiran.ru . ... M.A.Livshits, V.N.Obridko, S.B.Pikel'ner . Radio emission and atmospheric structure above sunspots . AZh (Soviet Astronomy), 1967, v. 10, no. 6, pp. ... V.N.Obridko . On the two-component structure of the sunspot magnetic field . ... On the two-component sunspot model . ... V.N.Obridko, L.B.Demkina . ... Solar Physics, 1972, v.24, No.2, 336 - 341. ...

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• ON THE STRUCTURE OF 3.11.94 ECLIPSE CORONA
• Publications for 1995-1999
• Gennady P

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . ... Listed Since July 15, 1998 . ... 775) 246-5281 . ... 775) 246-5211 . Web Site . ... Web . www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

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• Robert F. Royce, Precision Optical Components, AstroGuide Listing

... Meade Instruments Corporation . ... Choosing the Right Microscope . ... On most microscopes the specimen glass remains fixed while the microscope's objective lens and eyepiece move as a unit up or down to focus the image. ... Eyepieces of varying powers work with objective lenses of varying powers to yield a range of microscope magnifications. ... Magnification: The effective magnification of a microscope is determined by multiplying the eyepiece power by the objective lens power . ... about meade |...

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• Meade Sports Optics - How to Select the Right Binocular
• Meade Series 4000 Photo-Visual Color Filters
• Meade Instruments - Telescopes, Solar Telescopes, Binoculars, Spotting Scopes

... Hierarchy and stability 3. Stability criteria for triple systems 4. ... The results for selected systems with weak hierarchy (physical properties of components) System HD 40887 AB+CD HD 76644 AB+CD HD 217675 AB+CD HD 222326 A?+BC HD 284419 A+BC Spectral types K5V, M0V, K4V, ?? ... More accurate results for selected systems HD 217675/6 ( And) Quadruple system More accurate results for selected systems HD 217675/6 Pair B1B 2 More accurate results for selected systems HD 217675/6 (Zhuchkov et al. ...

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• Pulkovo Database of Observations of Visual Double Stars