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... 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. ...

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• Solar Eclipse Observed Armagh Observatory
• Armagh Observatory
• Bright Point Studies

Next: The derived luminosity and Up: The galactic population of Previous: The galactic population of . Figure 16: The observed distribution of pulsar dispersion measures. Dotted curve is the total known population, solid curve is the Parkes survey. Figure 17: The observed distribution of pulsar distances above the galactic plane. ... Figure 18: The observed distribution of pulsar flux densities. ...

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• Source size measurement from observed quasar microlensing
• LMC HII Region Luminosities versus Observed Ionizing Stars
• The magnetic fields of neutron stars

... 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. ...

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• ESO - Swedish Heterodyne Facility Instrument Science Verification
• "Toutatis" Observed with the ESO New Technology Telescope
• Our Nearest Star System Observed Live

... Sun images . Magnetic storms online . ... Geomagnetic activity forecast . ... March : 2012 . ... No geomagnetic storms were observed for the past 3 hours Geomagnetic storms were observed for the past 24 hours . Magnetic storm of level G1 (minor) from 00:00 to 03:00 UT . Magnetic storm of level G2 (moderate) from 03:00 to 06:00 UT . Magnetic storm of level G3 (strong) from 06:00 to 09:00 UT . ... Last updated: March 10, 2012 00:00 UT . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...

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• Magnetic storms online June 01, 2013
• Magnetic storms online June 23, 2015
• Magnetic storms online November 04, 2015

The CHIANTI database consists of 4 primary ASCII files for each ion in the database. contains the energy levels in cm^(-1) It includes both experimental data and theoretical values of the levels energies. References: %Observed energy levels (2): Feldman, U., Curdt, W., Landi, E., Wilhelm, K., 2000, ApJ, 544, 508 %Observed energy levels (3,4,5): Sandlin, G.D., Bruekner, G.E., Scherrer, V.E., Tousey, R., 1976, ApJ, 205, L47 %Observed energy levels (6 to 15): Fuhr, J.R., et al., ...

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The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... That produces an extra resistance to the flow of current. ...

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• The Sun
• The Polar Aurora
• TCV [Oulu]

We present a database of UV-to-FIR data of 83 nearby starburst galaxies. ... The NIR data are from new observations obtained at the NASA/IRTF and the Mount Laguna Observatory, combined with the published results from observations at the Kitt Peak National Observatory. ... In conjunction with IRAS and ISO FIR flux densities, all these data form a set of observed spectral energy distributions (SEDs) of the nuclear regions of nearby starburst galaxies. ...

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• Modeling Dust and Starlight in Galaxies Observed by Spitzer and Herschel: NGC
• What effect does the color index of the target have on the observed Transfer
• Change to COS FUV Pulse Height Filtering to Lower the Observed Dark Rate

... Note: Click here a longer, much more comprehensive overview of the polar aurora . ... Magnetic Field . ... Aurora . ... 3b. Fritz Aurora . ... Electrons . ... Typical aurora (Dick Hutchinson ї) . In Alaska, Canada, Norway, Finland or northern Russia, on a clear night, a greenish glow is often seen in the sky, known as the "Northern Lights." ... Auroral light is produced at a height of about 100 km (60 miles) when fast electrons, arriving from space, slam into atoms and molecules of the atmosphere. ...

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• Multipoint correlations of the solar wind parameters observed by several
• Chronology of Magnetospheric Exploration
• Solar Energetic Particles

... ACCORDING TO THE CENTRE IN BOULDER 17-19.03 ONE LONG MAGNETIC STORM WAS OBSERVED (G4, Ams = 83, dur. = 60 h.), AFTER WHICH IN 6 HOURS (19 - 20.03) MINOR MAGNETIC STORM FOLLOWED (G1, Ams= 33, dur.= 12 h.) AND AT THE END OF THE DAY 20 AND 21.03 ONE MORE MINOR MAGNETIC STORM (G1, Ams= 25, dur.= 12 h.), AND 22.03 IT IS NOTED SUBSTORM OF G1 INTENSITY, dur. 9 h. ALL THESE ADDITIONAL GEOMAGNETIC DISTURBANCES WERE FED WITH FLARES IN AR12297 AND SOLAR FILAMENT EJECTIONS 17-18.03. ...

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• http://www.izmiran.rssi.ru/services/saf/archive/en/2015/obzor20150413.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2014/obzor20141018.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2014/obzor20141027.en.txt

. First page Back Continue Last page Summary Graphics .

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• Heiles Symposium Presentations
• CIMA Auto-Observing
• Spectral-Line Observing

... 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. ...

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

. Click on star markers for catalogue data. Zeiss 20sm guide last observed FITS -image with WCS-header. Source image . Detected objects . Catalogue objects . Overlay . DSS1 .

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• The sample description
• The GB/NAIC 5GHz Survey
• Missing bands

We report here on those proposed UIT targets that, in fact, were successfully acquired. Where possible we provide an optical CCD image of the target or the field. Note on Filters: . A1 centered at 2500 angstroms with a width of 1200 angstroms . ... UGC 5675 is another Low Surface Brightness galaxy which is the center of the fourth deep A1 field. ... M32 a very high surface brightness dwarf elliptical companion was observed for 1561 seconds through the B5 filter. ...

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... 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. ...

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

Next: The Gravimagnetic Parameter Up: ``Ecology'' of Magnetic Rotators Previous: Nomenclature . ... One can introduce two critical periods and such that their relationship with period p of a magnetic rotator specifies the rotator's type: . ... Instead of , we introduce the potential accretion luminosity L . ... Treating the rotator's magnetic dipole moment and as parameters, we find that an overwhelming majority of the magnetor's stages can be shown on a `` '' diagram (Lipunov 1982a[ 98 ]). ...

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• Seminars
• Mixing types of E-P-A binary systems with non-zero orbital eccentricity
• Initial Distributions of Binary Parameters

... 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. ...

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• Footnotes
• Polar-Ring Galaxies
• Wavelength dependence

Magnetic Fields around Radio Galaxies Robert Laing (ESO) Laing et al. ... 2008) Negligible depolarization and 2 rotation Almost all Faraday effects must be due to foreground material How to fit depolarization caused by foreground Faraday rotation Complex polarization Rotation measure Integrate over a beam Observed RM for 0 2 rotation and depolarization Faraday rotation and depolarization 5.5 arcsec FWHM Faraday effects at high resolution FWHM = 1.5 ...

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• Example of an OOF analysis for the GBT
• Example of an OOF analysis for the GBT Bojan Nikolic web pages (r. 329)
• Introduction to phase correction for ALMA Bojan Nikolic web pages (r. 329)

... A Backward Sunspot and the New Solar Cycle . ... Credit: MDI , SOHO , ESA , NASA Explanation: Why is sunspot 905 backwards? Perhaps it is a key marker for the beginning of a new magnetic cycle on our Sun . Every 11 years, our Sun goes through a magnetic cycle , at the end of which its overall magnetic orientation is reversed. ... Just now, the Sun is near Solar Minimum , and likely to start a long progression toward the most active time, called Solar Maximum , in about 5.5 years. ...

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• Journal "Peremennye Zvezdy"
• XWare > APOD

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

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