... I need to take a closer look at the data. lbn SEFD, gain, and tsys vs za (ps) . ... The rotation angle is scaled to the maximum gain over the entire dataset and lbw gains are multiplied by .95 to match the lbn values. 26jul00 : processing : x101 /lb/ Aug00 /lbnjul00/26jul00.pro , plotting : x101 /lb/ Aug00 /lbnjul00/26jul00plt.pro 02aug00 : processing : x101 /lb/ Aug00 /lbnaug00/02aug00.pro , plotting : x101 /lb/ Aug00 /lbnaug00/02aug00plt.pro 03aug00 : processing : x101 /lb/ ...

... The f /96 camera of the FOC contains three linearly polarizing prisms with names POL0, POL60, and POL120. The E -vector pass directions of these prisms are 0 degrees, 60 degrees, and 120 degrees respectively, counterclockwise from the image x axis (-S direction), as projected onto the sky. ... The pipeline calibration for polarization observations is no different than for other images. ... You can then divide each of the three images by the expected throughput to correct for this difference. ...

... How is it described Origins of polarized light How is it important to astrophysics How is it measured 3 Polarized waves: linear 4 Thursday , 30 September 2010 Polarized waves: linear 4 Thursday , 30 September 2010 ... at any angle 5 Thursday , 30 September 2010 or Circular - LCP, RCP Right 6 Thursday , 30 September 2010 or Circular - LCP, RCP Right 6 Thursday , 30 ... Sky light is polarized, maximally at 90 degrees to the sun. ...

... RADIATION AND ECOLOGICAL MONITORING . ... OF MEASURING CHANNELS . Parameters of ecological fields measured by ARES . Parameter measured, . ... Volumetric activity of gases radionuclides in the air, Bq/m 3 : . ... of inert gases . ... Volumetric activity of a- and b-active aerosols, Bq/m 3 : . ... Concentration of nitric oxide NO, mg/m 3 . ... Meteorological parameters measured by ARES . ... 0.5 + 0.05 V), where V - measured wind velocity . ... Official WEB-site of S.P.Korolev RSC Energia . ...

... sin f = y / r . cos f = x / r . ... They are now viewed as new definitions of the sine and cosine, for the polar angle f given by x and y ( a slightly different way of formulating this definition is described further below ). ... sin 2 f + cos 2 f = 1 . ... Angle . ... Many trigonometry texts define the sine and cosine slightly differently, using the so-called unit circle . ... Then the distance AB ("the sine line") equals sin a , and the distance OA ("the cosine line") equals cos a . ...

... According to the most popular cosmological paradigm, the greater part of the galaxy mass is accumulated in the dark matter halo. ... The polar ring galaxies (PRGs) reveal external rings or disks of gas, dust and stars rotating in a plane roughly perpendicular to the disk of the central galaxy. ... The shape of the dark halo in the model was chosen so as to achieve the best fit to the observed rotation of both galaxies themselves and their polar rings. ... The SPRC-7 galaxy. ...

Next: Column label: AZI Up: Horizon obstructions Previous: Special remarks on . The independent variable (i.e., the reference column of the table) is labelled AZI, and contains the azimuth in degrees. ... The table entries are the altitudes of the two limits, measured in decimal degrees. It should be obvious in this table that the ``moonlight'' limit is always less than the ``observing'' limit. ... Table: Example of table contents for alt-azimuth mountings . Column label: AZI . ...

Spectropolarimetry and modeling of Galactic Wolf-Rayet star WR156 O LGA M A RY E VA Special Astrophysical Observatory RAS; olga.maryeva@gmail.com For the first time spectropolarimetric observations of Wolf-Rayet star WR156 (WN8h sub-class) were conducted. ... This polarization is, most probably, has an interstellar origin, as its magnitude and orientation are similar to the ones of field stars. ... By its parameters WR156 is similar to other WN8h stars, displaying the line effect. ...

... NGC 2440 Nucleus: The Hottest Star? ... In the center of the above photograph lies a star with one of the hottest surface temperatures yet confirmed. ... Releasing Compton . ... Named for Nobel laureate physicist Arthur Holly Compton, the Compton Gamma Ray Observatory (CGRO) Satellite was launched in April of 1991 aboard the Space Shuttle Atlantis. ... Too Close to a Black Hole . ... M1: Polarization of the Crab . ... The Crab Nebula resulted from a star that exploded - a supernova. ...

... The low energy plasma composition spectrometer AMEI-2 is built to be able to find in the low energy range of the phase space (E, q, j) and separate the fluxes of the major ion species in the magnetotail - H+, He++, He+ and O+, and analyse their energy and angular distributions. ... Electrostatic angular scanning in one direction and the use of the spin of the satellite to sample the other angle give the ability to measure 2-D distributions for each ion specie several times per spin. ...

. XMM-Newton Science Analysis System . eposcorr (eposcorr-3.12) [xmmsas_20070708_1801-7.1.0] . Meta Index / Home Page / Description At the moment we have no rigurous mathematical method to handle the statistical errors of the offsets found. For the moment we use the square root of the second order moment in as a function of off-set divided by the number of optical counter parts. XMM-Newton SOC/SSC -- 2007-07-08

... 2000 October 19 . The Farthest Explosion Yet Measured . ... What is known is that satellites across our Solar System reported on 2000 January 31 a tremendous explosion of gamma rays had occurred towards some previously uninteresting direction. ... The VLT not only recorded an optical counterpart , shown above , but also was able to estimate that the cosmologically-induced redshift was an astonishing 4.5 -- placing GRB000131 farther across the universe than any explosion so measured. ...

... Polarizer efficiency is defined as , where and are the respective measured signals for a polarizer oriented parallel and perpendicular to the axis of a fully polarized beam... angle 12.2 . Polarizer position angle as measured from the NICMOS Aperture Offset Angle of , about the aperture center toward the +U3 axis.. IDL 14.1 . IDL (Interactive Data Language) is an interactive analysis and visualization program written by Research Systems, Inc.... resolution. ...

These are very prominent absorption lines is most all galaxies. ... These pair of absorption lines will appear in all the spectra and they should be your principle source for determining the redshift. ... When this applet opens you will see an iconic representation of galaxies in the left hand side of the applet and a target area in the right side of the applet. ... Note: What you are doing in this excercise is identical to what Hubble did in the 1920's and you are using the same galaxies. ...

... Zeeman effect in spectral lines can alter stellar lines even if the stellar lines are not split-- For greatest detection sensitivity we need to obtain polarised spectra Need a combination of polarisation analyser (polarimeter) with spectrograph = spectropolarimeter Leverhulme Lectures on Stellar Magnetism 23/02/09 Polarimeters Simplest polarimeter is a device that rejects one sense of polarisation ( ... Measure the intensity of the beam thorough two perfect circular polarisers. ...

... Posts tagged ?degrees-of-freedom? ... Before using any adaptations of chi-square statistic, please spend a minute or two to ponder whether your strategy with chi-square belongs one of these categories. ... Use of non-frequency data . ... by K.L.Delucchi in A Handbook for Data Analysis in the Behavioral Sciences (1993). ... 1 Comment . ... Chi-square function, chi-square statistics, chi-square goodness-of-fit test are the words that serve different data analysis purposes but under the same prefix. ...

... An interactive IRAF task for the analysis of Extreme Ultraviolet Explorer ( EUVE ) emission line spectra is presented. The line flux in extracted spectra may be measured by multiple techniques, including fitting individual lines. ... To aid in identifying lines, the positions of known lines may be marked on the spectrum during the fitting process. Also, model EUVE spectra may be constructed and overlaid using plasma emissivities and source emission measures supplied by the user. ...

... Home Education Classes AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . ... Classes . AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . AAA Spring Astronomy Class: The Physics of Astronomy тАУ February - March 2016 . ... This MonthтАЩs Sky тАУ April 2016 . ... Dec. ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ...

... University of Wisconsin-Madison, USA Spinning interstellar dust grains produce detectable rotational emission in the 10-100 GHz frequency range. A partial alignment of grains arises from a newly-discovered e ect termed \resonance relaxation" and therefore the emission is polarized at a few per- cent level. I shall discuss the expected properties of the emission spectrum and the degree to which this emission is expected to interfere with the attempts to measure properties of CMB. ...

The Telescope:Pointing Data script takes set of pointing error measurements of pointing reference stars across the sky. ... To retry measuring the star, fix the problem (e.g. by adjusting focus, exposure time or offset) and press Continue . ... For each point in the az/alt grid the script will find and slew to a nearby pointing reference star, measure the star, write the pointing error to a data file whose path is displayed, and correct the pointing error. ...