... Perhaps the most interesting satellites in this group are the ones sent into distant orbits, some of them extending well past the Moon--e.g. the WIND spacecraft pictured here. Among them is a long series of IMP s (Interplanetary Monitoring Platforms) which sampled the Earth's distant magnetic environment, the magnetosphere, and the surrounding interplanetary region; IMP-8 is still returning good data, more than 20 years after its launch. ...

Еще в разделе: (Показать все результаты (>494) - www.iki.rssi.ru/ )

• Chronology of Magnetospheric Exploration
• The Magnetopause -- History
• The Polar Aurora

... Spacecraft . 29a. Satellite looking up . ... 29e. Explorers of distant space . Space Index . ... Many "down-looking" satellites also carry out local observations, among them Polar, Viking, Freja and satellites of the GOES and DMSP series. ... Other explorers of the distant magnetosphere have included the three ISEE spacecraft (International Sun-Earth Explorers), Polar in an elliptical polar orbit with cameras observing the polar aurora, and Image observing energetic neutral atoms. ...

Еще в разделе: (Показать все результаты (>1557) - www.cosmos.ru/ )

• Chronology of Magnetospheric Exploration
• The Magnetopause -- History
• Spacecraft Observing the Sun and the Heavens above

... The TRACE images may be used without restrictions in publications of any kind. ... These two images, taken on 18 November 2000 at 15:54UT and 16:11UT, respectively, show such an event: the red circle in the image to the left shows a region where many loops are cooling, with bright loop tops (the intensity scales with the square root of the image to reduce the dynamic range). ... See also a collection of images related to the Sun, other cool stars, and solar-terrestrial effects . ... Images | ...

Еще в разделе: (Показать все результаты (>8362) - www.arcetri.astro.it/ )

• CHIANTI atomic database

Next: Radio pulse characteristics Up: An overview Previous: The structure of neutron . Typically Gauss for normal pulsars . Consistent with flux conservation during stellar collapse . ... Gravity dominates stellar structure . B field dominates exterior . Stellar surface is so small that observed emission is dominated by the magnetic field. ... Only field lines inside light cylinder are closed . Particles are constrained move along field lines . ...

Еще в разделе: (Показать все результаты (>25745) - www.atnf.csiro.au/ )

• Velocities in Miriad
• The observed distribution
• PM Survey Status

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... One of the rarest but most interesting effects which can be observed with the Irkutsk IS radar is anomal high power signal registraion(coherent echo) due to strong magnetic storms. ... These signals are formed at E-layer heights in the presence of a strong electric field which causes particles to drift. ...

Еще в разделе: (Показать все результаты (>31) - rp.iszf.irk.ru/ )

• East Siberian Center for the Earth's Ionosphere Research. Ionospheric parameter

... We study the variation of the line width and electron density as a function of height above two coronal holes from forbidden spectral lines of Si VIII. The spectra were obtained with the Solar Ultraviolet Measurements of Emitted Radiation spectrometer flown on the Solar and Heliospheric Observatory spacecraft. ... The electron density shows a decrease from 1.1 10 8 cm -3 to 1.6 10 7 cm -3 over the same distance. ...

Еще в разделе: (Показать все результаты (>2360) - star.arm.ac.uk/ )

• Solar Eclipse Observed Armagh Observatory
• Armagh Observatory
• J.G. Doyle, Research Astronomer

... Science Users Information > Science and Technical Meetings > Conferences 2010 > The Origin and Fate of the Sun: Evolution of Solar-mass Stars Observed with High Angular Resolution . ... Observing Facilities . ... Observing with ESO Telescopes . ... The goal of this workshop is to review recent results on solar-mass stars obtained with infrared and millimeter interferometers, and to discuss their importance for our understanding of stellar evolution from star formation to stellar end products. ...

Еще в разделе: (Показать все результаты (>12248) - www.eso.org/ )

• ESO - Swedish Heterodyne Facility Instrument Science Verification
• ESO - Thesis Topic: The role of magnetic fields in the intermediate-mass star
• The globular cluster NGC 6388, observed by the NASA/ESA Hubble Space Telescope

... Gift Center . ... Why do aurorae appear strongest within rings centered on Earth's poles instead of filled-in circles? ... RELATED TOPICS: AURORAE . The visible aurorae result from electrons that move along magnetic field lines from space into the upper atmosphere. ... Just make sure you're registered with the website. Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

Еще в разделе: (Показать все результаты (>6018) - www.astronomy.com/ )

• Web Extra: Astronomers animate one of the largest galaxy clusters ever observed
• How do neutron stars generate steady magnetic fields? | Astronomy.com
• Astronomers explore magnetar mega-flare | Astronomy.com

Mikhail Medvedev (University of Kansas) HEA- 2007 , IKI, Moscow Missing baryons in inter-cluster gas Afshordi, et al, 2007 , astro-ph/0612700 35% +/- 8% Sample of 260 clusters WMAP SZ 3yr data Compared with 11 simulated clusters Assumed: Universal NFW profile Self-similarity Isothermal gas Possible explanations Observed stellar mass in galaxies: ~ 10% (Lin, et al, ... Simulations indicate that the effect is small (Dolag, et al, 2004) Can account for ~1-2% missing mass at most ...

Еще в разделе: (Показать все результаты (>286) - hea.iki.rssi.ru/ )

• GRANAT Home Page

... Data of obs. ... Reduced (Paper I) . NGC 0023 . VIII.1998 . ... NGC 0132 . ... Reduced . NGC 0157 . ... NGC 0615 . ... NGC 0753 . ... NGC 0945 . ... Bad data (clouds); . NGC 0972 . ... II.1998 . ... NGC 1024 . ... NGC 1058 . ... NGC 1073 . ... NGC 1084 . ... NGC 1134 . ... NGC 1637 . ... NGC 2276 . ... NGC 2608 . ... NGC 2964 . ... NGC 3184 . ... Bad data (low S/N) . NGC 3338 . ... Bad data (IFP failure) . NGC 3344 . ... Reduced (bad data) . ... Back to Project Vortex. ...

Еще в разделе: (Показать все результаты (>682) - jet.sao.ru/ )

• Emission molecular bands
• Fabry-Perot Interferometer: Gallery Old
• SCORPIO: Direct images

... Galaxies 99 Cosmic background with model of cloudy interstellar medium Yu. ... Figure 1: Averaged spectrum of the cosmic background I f in frequency range 0.25 200 MHz for the Galactic poles. ... First interpretation of the cosmic noise background spectrum at broad band frequency range 0.25 200 MHz with a model of the cloudy interstellar medium ISM is presented here. ... Synthesized background spectra I f for regions of the Galactic poles at the frequency range 0.25 200 MHz is presented in Fig. ...

Еще в разделе: (Показать все результаты (>299) - www.gao.spb.ru/ )

• http://www.gao.spb.ru/english/as/j2014/presentations/guseva.pdf
• http://www.gao.spb.ru/english/as/j2014/presentations/gross.pdf
• http://www.gao.spb.ru/personal/ivanov/papers/ikhsanov2_2002.pdf

... Home Education Astro Answers Astro Answers ? New Horizons: Exploring Pluto . ... Astro Answers . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Еще в разделе: (Показать все результаты (>620) - www.aaa.org/ )

• Lecture Series 2010-2011 ? ?Exploring the Extreme Universe with the Fermi
• Lecture Series 2015-2016 ? Amateur Astronomers Association of New York
• Amateur Astronomers Association of New York ? Amateur Astronomers Association

... Mindful of these biases, I can now explore the relations between the measured rotation periods and various other observables. The hypothesis behind monitoring stellar variability is that active stars have asymmetric spot distributions on their photospheres. ... They found that only stars with rotation periods greater than seven days show variations greater than 0.4 magnitudes at I. Bouvier et al . ... 1993a) demonstrated a relation between X--ray flux and spectral type in ZAMS stars. ...

Еще в разделе: (Показать все результаты (>1677) - hea-www.harvard.edu/ )

• The AstroStat Slog BEHR
• Rotation Periods of PMS Stars
• The AstroStat Slog Dong-Woo Kim

... A Leonids Meteor Storm in 1999 . ... The 1999 Leonids meteor shower was not equally good for everybody. Only observers in Europe and the Middle East with clear skies near 2 am (UTC) on 1999 November 18 saw rates shoot up to a meteor every few seconds. ... The 1999 Leonids Meteor Shower came to a tremendous crescendo. ... Just days before the peak of the Leonid meteor shower, skywatchers were offered another astronomical treat as planet Mercury crossed the face of the Sun on November 15. ...

Еще в разделе: (Показать все результаты (>82874) - www.astronet.ru/ )

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . Research results on fast active processes 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 ... Distribution of the recorded spikes in duration . ...

Еще в разделе: (Показать все результаты (>37) - ssrt.iszf.irk.ru/ )

... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

Еще в разделе: (Показать все результаты (>213) - www.astro.spbu.ru/ )

• Wavelength dependence
• Footnotes
• Polar-Ring Galaxies

... 1999 . I полугодие . 2000 . ... 2001 . ... 2002 . ... 2003 . ... 2015 . ... Последнее обновление: 28/12/2015 ...

Еще в разделе: (Показать все результаты (>228) - mavr.sao.ru/ )

• Galaxy sector, archive 2012
• HD965
• Solar system sector, archive 2008

... ON THE ROLE OF LARGE-SCALE PLASMA IRREGULARITIES AT THE FINAL STAGE OF ANOMALOUS ABSOPTION DEVELOPING UNDER HF HEATING OF THE IONOSPHERE . ... Fig. ... With the aid of numerical statistical modeling based on multiple ray tracing it is shown that in presence of large-scale irregularities the reflected signal amplitude mean value is increased significantly. ... Dependence of the mean amplitude of the reflected from the ionosphere signal on the large-scale (10-50 km) electron density irregularity level...

Еще в разделе: (Показать все результаты (>33) - ip.rsu.ru/ )

... The process of proposing for Hubble Space Telescope observing time has been revised, to make it simpler for proposers. We describe the simple, flexible, and robust prototype system created to handle proposal submission. ... Proposing for Hubble Space Telescope ( HST ) observing time proceeds in two phases: the scientific merits of the proposal are considered in Phase I; only accepted proposals enter Phase II, where the observations are described in complete detail. ...

Еще в разделе: (Показать все результаты (>1329) - www.adass.org/ )

• Remote Observing With Java
• An Approach for Obtaining Polarization Information from COBE-DMR
• The Removal of Periodic Read-Out Patterns from Science Frames

... Articles | ... Forums . ... 230 deg . 49 deg . ... 130 deg . ... More Info . ... 210 deg . ... 168 deg . ... 249 deg . ... 195 deg . ... 271 deg . ... 110 deg . ... 338 deg . ... July 15 . 247 deg . ... 224 deg . ... 340 deg . ... July Phoenicids (PHE) . ... August 10 . 341 deg . ... 339 deg . ... 307 deg . ... 334 deg . ... 335 deg . ... 286 deg . ... 327 deg . ... 262 deg . ... 102 deg . ... 153 deg . ... 117 deg . ... December 2 . ... 123 deg . ... 100 deg . ... www.astronomy.net . ...

Еще в разделе: (Показать все результаты (>307) - www.astronomy.net/ )

• Observe Every Photon's Size Experiment - an Astronomy Net Education Forum
• What I See - an Astronomy Net Observation_reports Forum Message
• Erie County Mobile Observers Group (pa), AstroGuide Listing