Russian . ... text in Russian) . ... The Behaviour of the Bz Component of the Magnetic Field in Coronal Mass Ejections . ... Cooperation of IZMIRAN and Sternberg Astronomical Institute in the Study of the Sublimational Component of the Solar Coronal Radiation . ... Solar Wind and Magnetic Storms in the 24th Solar Activity Cycle . ... text in English) . ... The Solar Corona in the Light of TRACE Observations . ... Expeditions of Irkutsk Astronomers to Total Solar Eclipses in 1981--2012 . ...

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INTRODUCTION TO STUDY OF DECEMBER 22-23, 1996 EVENT: INTERBALL Multi-Satellite and Multi-Instrument Observations . ... Brief review of observations . ... Orbits of INTERBALL/Tail Probe and GEOTAIL for December 22-23, 1996, are shown in Fig.12 in GSM frame. ... If we study the difference between model and measured magnetic field along Auroral Probe trajectory (see Fig.16 ) we can find that the magnetic field discrepancies are observed simultaneously with ion injections at ~ 16:40 UT on December,1996. ...

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• IESP-2M Results Page
• Events on January 10-11, 1997 - INTERBALL observations
• SKA-3 Results Page

... We present a compilation of the flux densities at 22.25 MHz for 395 radio sources. The flux densities are derived from three or more observations of each source. ... In this paper we present a final list of the flux densities scaled both from the specific observations of individual sources and from scans of the survey of galactic emission. The list comprises revised flux densities of sources listed in paper I and new flux densities for sources measured subsequently. ... Braude, S. Ya.: ...

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• Observations
• A fast-scan extragalactic source survey at 4.755 GHz
• Spectral observations and data reduction

... Sun images . Magnetic storms online . ... Geomagnetic activity forecast . ... December : 2006 . ... No geomagnetic storms were observed for the past 3 hours Geomagnetic storms were observed for the past 24 hours . Magnetic storm of level G4 (severe) from 00:00 to 03:00 UT . ... Magnetic storm of level G3 (strong) from 06:00 to 09:00 UT . Magnetic storm of level G2 (moderate) from 09:00 to 12:00 UT . ... Last updated: December 16, 2006 00:00 UT . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...

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• Magnetic storms online December 06, 2006
• Magnetic storms online December 21, 2015
• Magnetic storms online December 08, 2013

... Bojan Nikolic web pages (r. 329) . ... We present a Bayesian approach to calculating the coefficients that convert the outputs of ALMA 183 GHz water-vapour radiometers into estimates of path fluctuations that can be used to correct the observed interferometric visibilities. ... Inference of Coefficients for Use in Phase Correction . ... Simulating Atmospheric Phase Errors, Phase Correction and the Impact on ALMA Science . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

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• Inference of Coefficients for Use in Phase Correction
• Data Format Session at 2001 IAU WG Meeting
• Bojan Nikolic -- 90 GHz Continuum Observations of Messier 66

Irregular phenomena in the Earth Pole oscillation process and temporal variations of geopotential Valery Bondarenko, Vadim Perepelkin s The observed irregular phenomena in the Earth Pole oscillation process are very variety. ... These phenomena indicated in the IERS data are the "abnormal" fluctuation of the Earth Pole coordinates which owing to changing of the geodynamical parameters gives negative result in interpolation and forecast of the first approximation mathematical model. ... Fig. ...

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• http://www.gao.spb.ru/english/publ-s/viii-rfs/p099.pdf
• http://www.gao.spb.ru/database/csa/description_e.html
• http://www.gao.spb.ru/english/as/j2014/presentations/gross.pdf

Statistics of sunspot activity . The sunspot indices . My observations . NGDC's observations . The solar regions . ... 2015 . ... December . ... December, 2015 . Visual indices of solar activity by author's observations . ... Average . ...

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• The Sunspot Observer - Average annual indices of solar activity NGDC -

We present results of new Monte Carlo calculations made with the DIRTY code of radiative transfer of stellar and scattered radiation for a dusty giant late-type galaxy like the Milky Way, which illustrate the effect of the attenuation of stellar light by internal dust on the integrated photometry of the individual bulge and disk components. ... In addition, we find that the structure of the dusty ISM affects more sensitively the observed magnitudes than the observed colors of both bulge and disk. ...

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• A search for the cause of cyclical wind variability in O stars. Simultaneous UV
• HDF-S Followup Notes - Sydney, December 1997
• A New Database of Observed Spectral Energy Distributions of Nearby Starburst

The VLTI Calibrator Selector Tool is a tool intended to assist in the selection of suitable interferometric calibrators for VLTI observations with MIDI and AMBER. It uses a model of the VLTI and its instruments to assess the fringe visibility, given the observed bandpass, the geometry, spectrum, and coordinates of the target and the time at which the observations are to be made. ... The tool offers an HTML/Java based interface and consists of two pages. ... The quality flag depends on LDD_chi2. ...

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• ESO - Newsletter December 2015
• ESO - Science Announcements
• ESO - Thesis Topic: The role of magnetic fields in the intermediate-mass star

Detected Supernovae . The search have produced till now the detections of 4 SNe. ... This result highlights the power of infrared monitoring in detecting Obscured SNe and indicates that optical surveys are probably missing a significant fraction of SNe, especially in obscured systems such as starburst galaxies. ... In Fig. we show the archival SOFI image of NGC3256 (left) and the first image obtained in 2001 (right) where SN2001db has been detected. ...

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• IBIS: SolarNet Access
• Procedures for Observations
• Arcetri Star-formation Group Research Topics

... Here some data observed on the 6m telescope with IFP installed in the OLD focal reducer are presented. ... Mkn 3: velocity field . ... NGC 5252: [OIII] image . ... NGC 5252 was observed 23 Feb. 1998 in the [OIII]5007 emission line with CCD TK1024 as detector. ... We observed the ionized gas velocity fields of the spiral galaxies with two purpose. ... Restored velocity field of NGC 157 in the reference frame rotating with the pattern speed overlaid on the Ha image of the galaxy . ... NGC 4100 . ...

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• Observational data and reduction
• di_eks
• GRB follow-up team

... This flare was observed simultaneously in H alpha, ratio (at microwave and millime­ ter wavelenghts), and soft and hard X­rays (by the Yohkoh spacecraft) with high spatial and moderate spectral resolution. ... Analysis of the microwave/hard X­ray/soft X­ray emission from individual sources provides information on the radio emission mechanisms, the energetic electron population, the magnetic field strenght, and plasma den­ sity. ...

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• Latest News
• Explosive Events
• Doppler Imaging and Flare Activity on HR1099

... This is not important for drift observations but poses a problem for any observing mode in which the telescope is moving while taking data, since the ALFA beams then will be rotating on the sky. ... The new mode is called ' sky angle tracking ' and is available for all existing observing modes. ... The next figure shows the distance between the beams in declination as a function of hour angle when the telescope is tracking a source with Dec=+10 from rise to set with a sky angle of 19 degrees. ...

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• Spectral-Line Observing
• Heiles Symposium Presentations
• GALFACTS Team Ready

... Minute Values of Geomagnetic Field Components . ... AA 1868 - Present (3 hourly and daily) (monthly) (yearly) (Lists and histograms of geomagnetic disturbance and Solar Sunspots) KP_AP 1932 - Present (3 hourly and daily) (Lists and histograms of geomagnetic disturbance and Solar Sunspots) AE_HV 1957-75, 78-88 (hourly) AE_MIN 1978-881-6;198903;1990-94 (minute) DST 1957 - Present (hourly) PC 1975 - Present (15-minute) AMANAS 1959 - Present (3 hourly and daily) KMKNKS 1983 - Present (3 hourly) . ...

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ATNF ATUC Memorandum To: ATUC From: Jim Lovell Date: 2005 November 21 Subject Tidbinbilla report 1. 70m Observing statistics for July to December 2005. Currently there are 9 active proposals and observations have been completed for 2 of these. ... Tidbinbilla Support. ... As an initial step, Erik Muller has been spending some time on Tidbinbilla support this year and had been involved in developing observing software to support on-the-fly mapping. ... OTF Mapping. ...

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• VSOP Observing Schedule
• PhD Thesis Abstract
• Red synchrotron jets in Parkes quasars

... The Sun of our solar system is a typical star of intermediate size and luminosity. ... The Sun has a very complex surface magnetic field created by convective flow of the electrically conducting solar material. ... The escaping hot coronal plasma is called the solar wind . ... See the table below for the observed features above the Sun's surface. ... Chromospheric features . Coronal features . ... dense clouds of material suspended above the surface of the Sun by magnetic field line loops . ...

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• Geomagnetic Kp Index
• TCV [Oulu]
• The Wind Spacecraft

... The chemically peculiar star HD965 belongs to a rare type of very slow rotators. As far back as in the 90s, G.Mathys (ESO, Chile) supposed its extremely slow rotation as observing split Zeeman components in the spectrum, from which he measured the magnetic field on its surface. Field variation proved to be very slow, and G.Mathys determined that the variability period should be longer than two years. ... Up to now, only two stars with periods longer than 20 years are known. ...

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• C/2010 S1 (LINEAR), C/2010 R1 (LINEAR)
• Galaxy sector, archive 2008
• Galaxy sector, archive 2012

... I present results from several seasons of photometric observations of X--ray sources in the Orion OB1a and OB1b star formation regions. The initial goal was to measure the rotational periods of several dozen pre--main sequence (PMS) stars. ... Infrared and optical data confirm that 90% of the X--ray sources are PMS and about 10% of the PMS stars may have disks. ... I find rotation periods for five stars at confidence of greater than 99.9/ greater than 99/ at much lower confidence. ...

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• The AstroStat Slog Blog Archive [ArXiv] component separation methods
• The AstroStat Slog component separation
• The AstroStat Slog ICA

The properties of the midplanes of planet-forming protostellar disks remain largely unprobed by observations due to the high optical depth of dust and commonly observed molecules. However, rotational emission lines from rare molecules may have optical depths near unity in the vertical direction, so that the lines are strong enough to be detected, yet remain transparent enough to trace the disk midplane. In this talk, I will present a chemical evolution model of an MRI-active T-Tauri disk. ...

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• Marc White - Astrophysicist - The Australian National University
• Dougal Mackey - CV

Magnetic field experiment on Vega - 1 and 2 spacecraft. ... Two spacecrafts, Vega-1 and Vega-2 have been launched aboard Proton rockets from Baykonour on 15 and 21 December 1984, respectively. ... During the cruise phase from Earth to Venus both Vega-1 and Vega-2 spacecrafts had one-axis orientation i.e. Bx of magnetometer was directed to the Sun, By and Bz axes were rotated around Bx-axis. ... Spacecraft position data are presented in HGI and SE systems. ... Vega-1 magnetic data for 1984 . ...

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• magstorm
• VEGA pr-7