The power specta for line intensities of several lines formed in the upper transition region around 100,000 to 250,000K are presented. A period of ~5 min. is clearly present in lines due to O III, O IV and O V. In one dataset a period approaching 10 min. is present for ~10 min. ... In all datasets examined, there is excess power below 1mHz everywhere along the slit, although the observed periods do not always come from the most intense regions. ... In all regions, the 5.0mHz power peak is smaller. ...

Plasma phenomena occuring at one place in the magnetosphere also affect other locations This linkage is most pronounced between points that share the same field line, since field lines guide the motion of ions and electrons. ... It follows that the places on Earth most sensitive to distant magnetic effects are the "polar caps" , the regions around the magnetic poles. A good example is the polar aurora . ... way polar field lines . ... and to the Sun . ... Next Stop: #26H. Polar Cap--History . ...

... The remote planet Pluto and its moon Charon orbit the Sun at a mean distance of almost 6,000 million kilometres, or nearly fourty times farther out than the Earth. During a recent investigation by an international group of astronomers [1], the best picture ever of Pluto and Charon [2] was secured with the European Space Agency's Faint Object Camera at the Hubble Space Telescope (HST). ... The new HST image was taken when Charon was near its maximum elongation from Pluto (0.9 arcseconds). ...

SPECTRUM ANALYZER OF MAGNETIC PHENOMENA SAMW . Spectrum analyzer allows onboard computation of electromagnetic waves spectra registered (observed) in the ionosphere and magnetosphere in the ELF/VLF frequency band. ... It consists of magnetic antenna, preamplifier, 16 bit sigma delta AD converter, DSP processor and telemetry interface. ... The channels of lower frequencies are averaged and transmitted with lower repetition rate so the telemetry volume is reduced. ... Dynamic range: 90 dB . ...

Next: RELATED WORK Up: INTRODUCTION Previous: INTRODUCTION . ... In 1985, Grossman and Paulgrossmann-paul rigorously formulated some of these important ideas in terms of affine canonical coordinate transformations to a coherent space representation. ... In 1989 and early 1990, we formulated the chirplet transform, a multidimensional parameter space whose coordinate axes correspond to the pure parameters of planar affine coordinate transformations in the time-frequency plane. ...

... The Astronomical Society of the Pacific (ASP) presented Priscilla and Bart Bok Awards to two high School Seniors at the Intel International Science and Engineering Fair held May 10 to 15 in Reno this year. ... The Bok prize is named for Bart and Priscilla Bok. ... About 10 years ago, at the suggestion of the American Astronomical Society, the activities supported by the Bok Fund were expanded to include the joint sponsorship of an astronomy award at Intel Science and Education Fair. ...

... A rough estimation is that in the United States there is one planetarium per 100,000 population, ranging in size from the Hayden Planetarium's 20-meter dome seating 430 people, to three-meter inflatable portable domes where children sit on the floor. ... Together dblo associates make a huge impact in the architecture, interior design and development arena in London. ... With the holidays around the corner what better way to spoil your family than with your very own private home cinema. ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...

... Research . ... The major problem in HVC research is the unknown distance towards most of the HVCs. ... Thilker et al. (2004) used the Green Bank Telescope (GBT) to map an area of $7^{\circ} \times 7^{\circ}$ around M31 in H i . They discovered a population of HVCs located within a projected distance of about $50~\mathrm{kpc}$ from M31. ... 2004). ... The remaining HVCs around M31 are isolated in position and velocity and may represent primordial, dark-matter-dominated clouds. ...

... Angular size depends on distance, the farther away an object is, the smaller an angle it covers. ... SDSSJ1430: A Galaxy Einstein Ring . ... IC 4406: A Seemingly Square Nebula . ... These detailed Hubble Space Telescope close-ups feature Jupiter's ancient swirling storm system known as the Great Red Spot. They also follow the progress of two newer storm systems that have grown to take on a similar reddish hue: the smaller "Red Spot Jr." (bottom), and smaller still, a "baby red spot". ...

... The material in "From Stargazers to Starships" meets several important requirements of the national standards. Pages cited below are from National Science Education Standards National Academy Press, Washington 1995. ... For example: the sections on astronomy not only describe calendars and sundials (including their construction), but also the astronomy of the ancient Greeks, including two different ways in which ancient Greeks estimated the distance to the Moon. ...

It is a matter of common knowledge that in processes of genesis and evolution of many solar phenomena participate magnetic fields of sunspots. ... As a basis for formation of the database we take data on magnetic fields, collected by set of observatories during many years of observations. ... Section "Magnetic field data" contains data of magnetic field observation for separate sunspots, presented in standard text format (ASCII). ... Description of structure of these files is presented here . ...

... The colors indicate the relative motions of galaxies with accurately measured distances, with shades of green and blue indicating motions toward us and shades of yellow to red indicating motions away from us. Our nearest neighbors have only small relative motions (represented by yellows and greens), as seen best in the exploded view of the right panel. We, along with all these nearest neighbors, are moving together toward the lower right corner of the figures. ...

... arXiv.org . ... Here we present and analyse the properties of an updated sample of 37 ULP Cepheids observed in galaxies within a very large metallicity range of 12+log(O/H) from ~7.2 to 9.2 dex. ... The Origin of Color Gradients in Early-Type Systems and Their Compactness at High-z . ... Multiwavelength Observations of Markarian 421 in 2005 - 2006 . ... In addition to this, the well-sampled spectral energy distribution of Markarian 421 (1101+384) is presented for three different activity levels. ...

... One of the objectives of this work is to derive radial distribution of supernova remnant surface densities in spiral galaxies. ... Other objectives include the comparison of the SNR radial distribution with the radial distribution of HII regions to look for any association between Type II progenitors and the SNRs and comparison of the SNR distribution to the spiral arm patterns. ... Knowing the positions of the SNRs, we can compare their distributions relative to HII regions and spiral arms. ...

Magnetic Stars, 2011, pp. ... 2010). ... 463 Figure 2: Difference between individual and average spectra in Fig. 1 with phase (vertically, on the right) Figure 3: Almost in a year repeatability of spectral lines form (2009.07.05 and 2010.05.31) in an identical phase 464 CHOUNTONOV 4000 3000 Magnetic field, Bz(G) 2000 1000 0 -1000 -2000 2008/05/23 2010/05/31 -3000 0.0 0.2 0.4 0.6 0.8 1.0 phase Figure 4: Longitudinal magnetic field variations with phase (the sine curve, Rivinius et al., ...

... Spherical aberration, coma, and astigmatism are also easily observed using the star test. ... Off-axis images are complex. ... Fig. ... Diffraction by a circular aperture as a function of defocus for no aberration Airy Disk 1 wave defocus Less than 1 wave defocus Fig. ... Diffraction by a circular aperture as a function of defocus for third-order spherical aberration Paraxial Focus Small distance inside paraxial focus Moderate distance from marginal focus Immediate neighborhood of marginal focus Fig...

Main Program Travel Where to go in Moscow Information . ... We highly recommend to make hotel reservation as early as possible due to high season in Moscow. ... Short list of convenient hotels in Moscow is presented below. ... Hotel . ... Below is the list of hotels the way from which to the conference hall at IKI will be relatively simple and shouldn't take more than 30 minutes. ... International Conference: Cosmology and High Energy Astrophysics (Zeldovich-90) 20-24 Dec 2004, Moscow, Russia . ...

... M.Sc. degree from Moscow institute of Steel and Alloys . ... Postgraduate student, Junior Research Associate,Institute of Crystallography RAS, Moscow. 2000-present . Research Associate, Institute of Radio Engineering and Electronics RAS, Moscow. Microelectronics – Josephson devices, semiconductor devices. Properties of Josephson junctions: in high frequency electric fields and in high electric fields. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Space Flight . ... By admin November 24, 2015 Posted in: Armagh Planetarium . Please note that these items are not currently available to buy online from Armagh Planetarium . ... Image Credit: Martina Glass/Armagh Planetarium) . ... Not to just limit space gifts for the older members of the family. ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...