... Magnetic fields, subatomic particles, etc., traveling in different directions fill the universe. Do they deflect or otherwise affect one another? If so, isnт??t the information we get from them distorted? ... Neutrino astronomy, which is still in its infancy, is attractive because neutrinos interact so weakly with matter that few of these distorting effects occur. Get instant access to subscriber content on Astronomy.com! ...

Astronomy Discussion Forums . Forums: . ... Celebrating "separate" Universes!! ... Post Message | ... If "B" were not different in at least some way from "A"; why, "B" would even have the same name as "A"; it would have to be "A". ... B" is a way of looking at itself and the world (inculding "A"). ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

home education > activities . ... Quick math activity that asks students to calculate scale models of a binary star system with a black hole in it. [h] . ... Students use a radiometer and a light bulb with a dimmer switch to make connections between the temperature, color, and radiation output of a star. ... This demonstration, similar to the above, from the Exploratorium Snack-book of science activities, lets students demonstrate how molecules scatter light and change the colors of the beam. [m,h] . ...

... An Orion of a Different Color . ... It is a familiar object though, the grand stellar nursery known as the Orion Nebula . But the striking picture combines images taken through three separate filters, each designed to record different emission lines - light from Sulfur, Oxygen, and Hydrogen atoms glowing in the tenuous nebular gas. At such low densities , Sulfur and Hydrogen atoms emit red colors while Oxygen glows green. ... Publications with keywords: Orion Nebula . ... The Heart Of Orion . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 May 22 . Moon and Planets by the Eiffel Tower . ... The planets in the above picture , taken last week, are Venus and Jupiter . ... Over the next two weeks, the Moon will rise later and later passing a full phase on May 26. ... The Eiffel Tower , however, is expected to remain right where it is. ... About APOD | ...

... In FOS polarimetry mode the incoming beam was split into orthogonal polarization components by a Wollaston prism behind the entrance aperture. ... As with non-polarimetric observations, no concurrent WAVECAL exposure was routinely taken with polarimetry data, so the limiting accuracies of the default pipeline polarimetry wavelength calibration are the same as for the non-polarimetry case described earlier ( See "Wavelength Calibration" on page 32-49. ...

... Tutorial : Part 1 | ... Until a few hundred years ago, the Solar System and the Universe were equivalent in the minds of scientists, so the discovery that the Earth is not the center of the Solar System was an important step in the development of cosmology. ... In 1929 Hubble published a claim that the radial velocities of galaxies are proportional to their distance. ... The slope of the fitted line is 464 km/sec/Mpc, and is now known as the Hubble constant, H o . ... Ned Wright's Home Page . ...

... the radiative transfer equation (RTE) for the randomly-irregular magnetized plasma has been derived on the base of general grounds of the multiple scattering theory . ... Solutions of several absolute tasks of the scattering theory have been obtained (on the optical depth of the ionospheric plasma layer, on the value of radio wave anomalous attenuation, on anomalous refraction, on the backscattered signal intensity for the source being placed within a plasma layer). ...

Next: The Scenario Machine: Operational Up: Evolution of Magnetic Rotators Previous: Ejector-propeller hysteresis . ... The length of this segment is determined by the eccentricity. ... In this case no hysteresis occurs and transitions E -- P and the reverse take place in symmetrical points of the orbit. ... Here EP means a mixed state of the rotator at which it is in the ejector state during one part of the orbit, and in the propeller state during the rest of the orbital cycle. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . Sun . ... Stars . ... Monthly Sky Notes . ... Among the wonders of the sky they shared may have been something we do not have today, a neighbouring star roaming through the outer edge of the Solar System. ... Today Scholzт??s Star is about 20 light years from the Sun in the constellation of Monoceros. ... Seen from our Solar System, Scholzт??s Star barely moves across the across the sky. ... Astronotes . ... Subscribe to Astronotes . ...

... IRAF View . This is the orientation of the image as viewed in an image display via IRAF (e.g. ximtool, saoimage). Note: This is different from the orientation of the image as viewed on a Macintosh, via Remark . ... A +X, +Y instrument offset will move a star in the direction indicated by the arrows. ... Note: The offset direction depends upon which interface the offset command was issued in! ... Note: This is different from the orientation of the image as viewed by IRAF. ...

... A. M. Neminsky, D. V. Shovkun, and O. T. Vyaselev . ... Received 18 January 1996 . The temperature dependence of ac susceptibility chi ( T ) has been measured at different values of dc magnetic field for Rb 3 C 60 fine powder. ... The chi ( T ) measurements at different dc magnetic fields allow us to distinguish between these two contributions and to obtain precisely the temperature dependence of the London penetration depth lambda ( T ). ...

... Network logins work a little differently than normal logins. There is a separate physical serial line for each terminal via which it is possible to log in. For each person logging in via the network, there is a separate virtual network connection, and there can be any number of these . ... Network logins have, instead of a herd of getty љ s, a single daemon per way of logging in ( telnet љ and rlogin љ have separate daemons) that listens for all incoming login attempts. ...

Next: Front End Construction Up: Minutes of the 1st Previous: Minutes of the 1st . ... Calculated system temperature: 25-26K at 1525 MHz, 29-30K at 1375 MHz and 34-25K at 1225 MHz. ... Calculated G/T - again, center pixel better . ... Multi Beam Sky Footprint: Separation 2 beam widths between individual beams . ... Calculated Beam Comatic Level about 8 dB . ... German . ... Slide 1.9 shows calculated T sys with 2 points for each frequency; one is for the center beam and other is for the outside. ...

The Face on Mars . ... The Raw Images . Table 1: List of Viking Orbiter Images of the "Face on Mars" . ... Processing the Face Images . Table 2: Dimensions of Mercator Projected Images of "The Face on Mars" . Map Projected Images . ... Processing the "Face on Mars" Images . ... This page will provide interested persons with both the raw Viking images, transformed to GIF format, and a brief tutorial (with examples) of image processing techniques applied to create "better looking" images. ...

... The Raw Images . Table 1: List of Viking Orbiter Images of the "Face on Mars" . ... Processing the Face Images . ... In July, 1976, Viking Orbiter 1 was acquiring images of the Cydonia region of Mars as part of the search for potential landing sites for Viking Lander 2. ... Using the height field, it is also possible to view the "Face" from different look directions, by mapping the Viking Orbiter image directly on the the topography and then placing the "viewer" at different locations. ... Mars . ...

This document discusses the conventions for combining region and table filters, especially with regards to the comma operator. Filter specifications consist of a series of boolean expressions, separated by commas. ... Region and table filters can be combined: foo.fits[circle(10,10,3),pi=1:5] or even: foo.fits[pha==1 (10,10,3),pi==2 (20,20,8,5)] In these cases, it is not obvious whether the command should utilize an or or and operator. ...

DiFX for LOFAR Data James M Anderson anderson@mpifr-bonn.mpg.de 2nd D iF X S oftware C orrelator W orkshop , 2008 S ep 09, B onn James M A nderson 1/15 LOFAR : The Low Frequency Array Aperture array technology ­ digital processing normally 30 to 80 MHz can do 10 to 80 MHz 120 to 240 MHz ... Multiple beams can be formed simultaneously James M A nderson 3/15 2nd D iF X S oftware C orrelator W orkshop, 2008 S ep 09, B onn Why am I (or LOFAR) Interested in DiFX? ...

... Co-ordinate systems description . Directories structure . The file names' construction . The file set description . ... The orbital information for each month is presented in the separate directory. The INTERBALL orbital data are located on the STDA server, for each month in the separate subdirectory, which name consists from the year (YYYY) and month (MM) numbers. The Parent Directory of the Tail Probe orbital data is http://www.iki.rssi.ru/da/interball/tail/orbit/ . ...

... Meta Index / Home Page / Description / Ways of specifying the . ... In this mode, different parts of the image may be smoothed by different convolvers. ... Regardless of the value of withweightset (see section 3.4 for the use of weight and mask images), the convolution within each index `patch' is always a weighted convolution, the weight being 1 (or the weightset image if this is supplied) within the patch allocated to that convolver and 0 outside it. ...