The total radiative power output from the hot outer layers of six late-type stars (of different spectral types and luminosity class) is derived via an emission measure technique. This analysis was based on observational data from the spectral range 100A to 3000A obtained as a result of three separate satellite missions, i.e. Hubble Space Telescope, International Ultraviolet Explorer and the Extreme Ultraviolet Explorer. ...

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• High-Mass Star Formation
• Armagh Observatory
• The death of stars like the Sun: diagnosing mass loss

... English (Australia) . ... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . ... Survey Telescopes . ... Star Clusters . ... Colour composite image of the central part of the stellar cluster RCW 38, around the young, massive star IRS2, taken with the NACO adaptive optics instrument attached to ESO's Very Large Telescope. Thanks to this image, astronomers were able to discover that IRS2 is in fact a twin system composed of two almost equally massive stars. ...

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• Synthetic Star Forming Region HRDs
• The region around the massive star IRS2 | ESO
• The region around the massive star IRS2 | ESO Ireland

... We report on our ongoing project ``Infrared Study of HII Regions Associated with Small Clouds.' ... These IR data, combined with optical imaging (which will be obtained from the IAC-80 telescope), IRAS survey maps, and existing CO observations of the associated clouds, will allow us to undertake a detailed investigation of the gas-to-dust mass ratio, initial mass function and the star-formation efficiency in these complexes. ... CHECKPSF: check the PSF (Point Spread Function) model, . ...

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• IDL-based Database of Solar Active Regions
• A New PROS Task for Calculating HRI Source Intensities or Upper Limits
• Modelling Spectro-photometric Characteristics of Eclipsing Binaries

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . Sun . ... March . ... The extent of the solar eclipse of 3 November?а 2013 at 13:22 UTC as seen from Accra, Ghana. We will see a similar sight.?а (Image credit: Kwabena under Creative Commons Licence) . ... Your viewing location is not important as long as it offers an unobstructed view of the south eastern sky.. ... You can use ?eclipse glasses? to view the Sun, these are made from aluminized Mylar filter material. ...

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• Kepler-11: a strange and crowded planetary system | Astronotes

... Astrophysics Group . ... VLSS . ... To facilitate access for UK and European users, MRAO is providing a UK Mirror of the VLA Low-frequency Sky Survey (VLSS), which is being produced in the US jointly by NRAO and the Naval Research Laboratory (NRL). ... A catalog of discrete sources on these images created by fitting a elliptical Guassians to all sources detected at the 5 sigma level or higher. ... This survey contains publicly available images and catalog information on over 1.8 million radio...

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• Astrophysics Group GMRT Lockman Hole
• Astrophysics Group GMRT ELAIS-N1
• Astrophysics Group GMRT ELAIS-N2

T he Sun is an ordinary G2 star, one of more than 100 billion stars in our galaxy. diameter : 1,390,000 km . mass : 1.989e30 kg temperature : 5800 K (surface) 15,600,000 K (core) T he Sun is by far the largest object in the solar system. ... C onditions at the Sun's core are extreme. ... I n addition to heat and light, the Sun also emits a low density stream of charged particles (mostly electrons and protons) known as the solar wind which propagates throughout the solar system at about 450 km/sec. ...

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• Sun [Oulu]
• The Solar Wind--History
• The Sun's Corona

... 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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A presentation of the flight model of the Mini Research Module (MRM1) and equipment to be delivered in it was held at S.P.Korolev Rocket and Space Corporation Energia the day before their shipment to the USA for processing before the launch to the International space Station in the Space Shuttle payload bay in May 2010. ... Grapple fixtures are available on MRM1 to ensure the module unloading from the Space Shuttle and mating to Zarya module after the Space Shuttle undocking from the ISS. ...

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• S.P. Korolev RSC Energia - News
• S.P.Korolev RSC Energia - A LINE OF PROSTHETIC APPLIANCES
• S.P.Korolev RSC Energia - SCIENTIFIC-EDUCATIONAL PROGRAM

... One of this year's largest mass ejections from the Sun's atmosphere was recorded last Sunday by TESIS telescopes aboard the CORONAS-PHOTON satellite ( video - wmv 4.3 MB ). ... Over the course of a week, two gigantic solar prominences were simultaneously ejected from the surface of the Sun. ... Earth will not feel the Sun's influence either. ... The TESIS observatory © TESIS: www.tesis.lebedev.ru . ... One of this year's largest mass ejections from the Sun's atmosphere (movie WMV, 4.3 MB) . ...

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• Sunspots and active regions January 01, 2015
• Sunspots and active regions January 01, 2014
• Sunspots and active regions January 10, 2012

Publication list . Structure and long-term change in the zonal asymmetry in Antarctic total ozone during spring A. V. Grytsai, O. M. Evtushevsky, O. V. Agapitov, A. R. Klekociuk, and G. P. Milinevsky // Ann. ... Ballooning perturbations in the inner magnetosphere of the Earth: spectrum, stability and eigenmode analysis A. V. Agapitov, O. K. Cheremnykh, and A. S. Parnowski (approved for print in Advances in Space Science) . ... Space Res., ...

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• Olexiy V. Agapitov presentations & posters
• ION AND ELECTRON ENERGY DETECTOR PAN-2

HI envelopes around HII regions . ... We have investigated 32 HII regions and around 17 of them we have found the clumped HI envelopes with radial motions. The example of the envelope around HII regions M16 is shown on figure 1. ... The thickness of envelopes is rather great - 0.44 radius, mass are about 6E+4 mass of the Sun, kinetic energies - 10E+50 ergs. ... The model of formation of HI envelope was advanced as outcome of an operation of a summarized stellar wind of stars, exciting HII region. ...

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• Interstellar Clouds Conference Homepage
• Results scientific researchs 24
• Olga Maryeva homepage

... 8, ``Celestial Mechanics'', 2002 Formation and migration of trans -- Neptunian objects S. I. Ipatov 1;2 1 Institute of Applied Mathematics, Moscow, Russia 2 NASA/GSFC, Greenbelt, USA We support the Eneev's idea [1] that the largest (with diameter d?100 km) trans ґ Neptunian objects ( TNOs ) moving now in not very eccentric orbits ... The total amount of water delivered to the Earth during the formation of the giant planets was about the mass of water in the Earth's oceans. ...

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• http://www.ipa.nw.ru/conference/2002/sovet/PS/KOCHET.PS
• Keywords_114
• Values of asteroid masses

... We consider the astrophysical evolution of the Galaxy over large time scales, from early stages (an age of ~10 8 yrs) to the end of traditional stellar evolution (~10 11 yrs). ... In the model considered, the basic stages of Galactic evolution are as follows. ... Essentially all other basic parameters of the Galaxy vary little. ... The final "stellar epoch" in the life of the Galaxy is completed ~10 13 yrs after its formation, when the evolution of the least massive stars comes to an end. ...

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... initial_mass -- star mass at start of run (Msun units) ! ... mixing regions ! ... the first column for a region gives int(sign(val)*log10(max(1,abs(val)))) ! ... in Msun units) !mass_ext_to_max_eps_nuc ! ... mass coordinate at location of max burn (Msun units) !max_eps_h_xm ! mass exterior to location of max burn (Msun units) !max_eps_h_lgP ! ... mass coordinate at location of max burn (Msun units) !max_eps_nuc_xm ! mass exterior to location of max burn (Msun units) !max_eps_nuc_lgP ! ...

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• http://crydee.sai.msu.ru/ftproot/pub/MESA-models/M6_Z002/history_columns.list
• http://crydee.sai.msu.ru/mesa/profile_columns_modified.list
• Long description for example of clipping region

Blackholes2 Forum Message . ... Holostars: Black Holes Without Event Horizons . ... Its name derives from the fact tht information is preserved in such a black hole, and must be a contraction of hologram and star. ... The exterior metrics and fields of the charged holostar are equal to the Reissner-Nordstroem black hole solution. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• I Can Totally Relate - an Astronomy Net Exploration Forum Message
• Photons Have Mass Also. - an Astronomy Net Blackholes2 Forum Message
• Total Lunar Eclipse May 15-16 - an Astronomy Net Observation_reports Forum

... Thermogravimetric and differential thermal analysis . ... TOF-SIMS analysis . Total conductivity, Seebeck coefficient and ion transference number measurements in controlled atmos . ... Processing of ceramic materials, electrode systems and electrochemical cells . ... SIMS analysis is based on exposure of the sample surface with primary ions possessing some definite energy, which is partially consumed by the sample and induces emission of sН-called secondary ions. ... Spatial resolution: 60 nm . ...

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• About BTA
• Teams at the International Astronomy Olympiad
• Laboratory of spectroscopy of defect structures ISSP RAS

... Submitted by Al Takeda on 08/19/2007 21:04:50 . NGC 6992 (Veil Nebula ? ?eastern region?) . NGC 6992 (Veil Nebula ? ?eastern region?) ? A 2.6 degree diameter supernova remnant in Cygnus. While the Veil can be seen with a 7x50 binoculars in dark skies the filamentary structure can only be seen visually with a large scope of 25 inches or larger. ... 9 August 2007. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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... Future seminars . P a s t seminars . Seminar council . Observations of Aql X-1 region with INTEGRAL" . S.V. Mol'kov (IKI) . ... As an example of typical INTEGRAL observation we present the review of a set of observations of Aql X-1 region with INTEGRAL. The total exposure on the region was approximately 300ks. The main goal of this observations was monitoring of hard X-ray behavior of Aql X-1 during the outburst 2003. ...

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• The magnetosphere models
• Luna-GLOB
• Lidar homepage - Instrument Information

... Solar Variability Affecting NGDC-05/1 - 1 disc. This CD-ROM contains solar flare reports, sunspot numbers abd regions histories, total solar irradiance, and solar bursts. Some available data are digital geomagnetic hourly values, magnetic activity induces, cosmic ray observation, solar wind and IMF hourly values, list of magnetic storms. ... This disc contains solar emissions recorded since 1960 at ground obbservation stations, available on this CD at discrete and sweep frequencies. ...

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• http://www.wdcb.ru/stp/data/cat6CDR/Spacecraft%20STP%20Data
• http://www.wdcb.ru/stp/data/cat6CDR/Cosmic%20Ray%20Data

... 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. ...

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• The Evolution of Stars seen with ISOCAM - the Need for NICMOS and VLT Follow...
• The Old Stellar Population of NGC 1569 from NICMOS data
• The Formation and Evolution of LMC Rich Star Clusters: NGC 1818