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 . ...

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• The observed distribution
• Source size measurement from observed quasar microlensing
• LMC HII Region Luminosities versus Observed Ionizing Stars

The Sun is our nearest star and the source of energy for life on Earth. ... For centuries astronomers wondered whether they were clouds floating in the Sun's atmosphere, but we now know that they really are huge regions of magnetic field, about as intense as the field at the poles of an iron magnet. ... Such abrupt events were named solar flares , and what made them especially interesting was that occasionally, after a prominent flare, a magnetic storm would erupt on Earth. ...

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• TCV [Oulu]
• Sun [Oulu]
• Solar wind and IMF [Oulu]

Next: This Work Previous: Rotation Periods of ZAMS Stars . ... There are currently several groups involved in the studies of the rotation periods of PMS stars. ... Overall, there are about 100 rotation periods known for PMS stars. ... Furthermore, the stars with periods near 8 days also tend to have infrared excesses which can be interpreted as arising from disks. ... In the first interpretation, the gap occurs because locking mechanism holds stars at a eight day rotation period. ...

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• The AstroStat Slog Banff Challenge
• Relations
• Rotation Periods of ZAMS Stars

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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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• http://www.mrao.cam.ac.uk/~mh475/poster.pdf
• Example of an OOF analysis for the GBT
• Example of an OOF analysis for the GBT Bojan Nikolic web pages (r. 329)

... The Search of a pulsar Once the dedispersed time series is obtained, a Fourier transformation is performed. ... 2 Binary parameters The orbit of a pulsar , as well as any object, in a binary system is determined in its geometrical characteristics, space displacement and syncronised in time by the following parameters : Semimajor axis Eccentricity Longitude of periastron Binary period Time of ascending node a e PB T0 True spin period and observed spin period The ...

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• CHVCs observed with Arecibo
• Submitting New Observing Modes to AO
• Heiles Symposium Presentations

... 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
• The globular cluster NGC 6388 observed by the European Southern Observatory
• Our Nearest Star System Observed Live

Astronomers at Armagh Observatory observed the partial eclipse of the Sun on 29 March under unusually good conditions. ... The images, taken by astronomer Miruna Popescu, shows the eclipse as seen from the Armagh Observatory at around 11:30 (Summer Time) on 29th March, and the way it was observed by astronomer Apostolos Christou with a small portable telescope equipped with a filter to protect against the Sun's dangerous radiation. ... For more images from Armagh see: Miruna Popescu's Pages . ...

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• Broadening of Si VIII lines observed in the Solar polar coronal holes
• Armagh Observatory
• Explosive Events

... 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

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 13 - 17.10.2014, Forecast on 18 - 27.10.2014, Carrington Rotations 2155, 2156 (17,72.09; 15,00.10.2014) SUNSPOT-FORMING ACTIVITY OF THE SUN WAS AT THE AVERAGE LEVEL. ... NEXT WEEK THE AVERAGE AND LOW LEVELS OF SUNSPOT-FORMING ACTIVITY IS EXPECTED. ... BY DATA OF CORONOGRAPHS SOHO AND STEREO WERE OBSERVED 20 CME, ONE OF WHICH WAS THE "HALO" TYPE AND TWO - "PARTIAL GALO II". ... TODAY ENERGY OF LAST MAGNETIC FLUX IS SPENT. ...

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• http://www.izmiran.rssi.ru/services/saf/archive/en/2015/obzor20150323.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2015/obzor20150413.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2014/obzor20141027.en.txt

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
• Stars as Observed in the Infrared

The problem of solar wind data correlation for the observations onboard several spacecraft is very important for three points of view: . ... This problem is studied now in detail by systematic determination of ion flux and ion velocity data correlations by INTERBALL-1 (IKI group), WIND and IMP 8 (both - MIT group). ... Solar wind plasma correlation lengths from IMP 8, WIND and INTERBALL-1. ... Correlation of solar wind observations onboard several spacecraft: INTERBALL-1, IMP 8 and WIND data. ...

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• Planetary Magnetism
• Satellites which look down and observe Earth
• Spacecraft Observing the Sun and the Heavens above

... 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

... 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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• Ratan-600 schedule archive
• Galaxy sector, archive 2008
• Galaxy sector, archive 2012

... Under certain conditions, like those in the nucleus of a QSO, all atoms can be made to emit light at particular wavelengths. ... If that source is approaching the observer, the wave is squashed up onto itself making the wavelength shorter. ... This is redshift. ... You can see how the section of the QSO spectrum which we observe changes with redshift. ... We then see how far we had to slide the observed spectrum along the scale to make it match and that is the objects redshift. ... The 2QZ team . ...

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. 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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• HyperLEDA documentation: parameter: vmaxg
• The sample description
• HyperLEDA documentation: compilation of cz measurements (a110)

... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Mars . ... Previously understood that magnetic fields were directly related to rotation, so when I read that Mars, like Venus, didn't have one, my understanding crumbled. What exactly causes magnetic fields in planets? ... RELATED TOPICS: MAGNETIC FIELD . Planetary magnetic fields are definitely related to rotation, but directly not so much. ... Get instant access to subscriber content on Astronomy.com! ...

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

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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• Evidence for Dark Matter

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

... Frequency of wobble same as frequency of forcing mechanism (t) + i 2 (t) · Helmholtz Centre Potsdam ­ GFZ · Consistent estimates of AAM , OAM , HAM computed at GFZ · AAM computed from European Centre for Medium-Range Weather Forecasts · OAM computed from Ocean Model for Circulation and Tides (OMCT) · HAM computed from Land-Surface Discharge Model (LSDM) · Ocean and hydrology Sensitivity to Excitation Model GFZ ECMWF AAM OMCT OAM LSDM HAM 1962­2010 1971­2010 1981­2010 1991­2010 2001­2010! ...

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• http://www.gao.spb.ru/english/as/j2014/presentations/perepelkin.pdf
• http://www.gao.spb.ru/english/publ-s/viii-rfs/p099.pdf
• http://www.gao.spb.ru/personal/ivanov/papers/ikhsanov2_2002.pdf