... HST . ... HST Overview . ... Cycle 24 Announcement . ... The illustrations below provide a means of estimating where particular wavelengths fall within the echelle formats and where they lie relative to the blaze peak. ... The figure below shows the echelle blaze function (also known as the "Ripple Function") in the form of sensitivity relative to the peak of the blaze as the product of wavelength and order number. ... Figure 8.7: - Normalized blaze function for the GHRS echelle gratings. ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

Next: Copying Calibration Tables - Up: Calibration, the ATCA, and Previous: Determining Gains and Bandpass . ... This parameter can be used as an alternative way of specifying the XY phase of the antennas. ... Unless you explicitly turn off solving for XY phase in gpcal , then the only important XY phase value is that for the reference antenna. ... means that gpcal will solve for the XY phase of the reference antenna. ... By default it solves for all XY phases, except for the reference antenna. ...

Hide Zen home . ... sncat2sntab.pl - convert old catalog to table sn . ... CREATE TABLE cats ( id integer PRIMARY KEY, name text ); -- a list of properties of galaxy CREATE TABLE properties ( id integer PRIMARY KEY, name text ); CREATE TABLE galaxy ( id integer PRIMARY KEY, name text ); CREATE TABLE galaxy _property ( gid integer REFERENCES galaxy (id), pid integer REFERENCES properties(id), value float, UNIQUE( gid ,pid) ); CREATE t=# select * from galaxy; id | ...

This diagram illustrates a floating image that overlaps the borders of one paragraph in normal flow: the paragraph borders are clipped by the non-transparent parts of the image. ... A left-floating image causes the final three lines of the upper paragraph to float along its right side. The paragraph borders shine through the margin area of the image box. ... The second paragraph flows normally, starting below the image's bottom margin. ... Return to image. ...

... PulsarsP1303 Date Received: 2000-99-May-24 18:49:44 Technical Page Proposal Type: Regular General Category: Astronomy Sub-Category: Pulsars Sub-Category: Pulsars Observation Category: Total Time Requested: 12 Hours Proposal Title: Contrasting core and conal dominated single pulses of radio pulsars. ABSTRACT: The superb sensitivity of the Arecibo telescope at 430 MHz makes it a unique instrument for studies that demand high sensitivity such as single pulse polarimetry of normal pulsars. ...

The possibility to have Visitor Instruments at the VLTI has been granted to permit innovative observations by teams using stand-alone instruments, free from a substantial fraction of the requirements for fully automated VLTI general use instruments. In addition, the Visitor Instruments could provide a powerful scientific/technical test bench for new instrumental concepts, eventually to be incorporated later in VLTI facility instruments. ... a thorough technical description of the instrument, . ...

... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The top panel shows an image of the Sun in the O VI 1032 line obtained on 1996 June 7 by the SUMER instrument, with the three regions for which O VI 1032 and 1038 line intensities were determined from SUMER spectra labelled as A, B and C. The remaining panels show plots of the measured I(1032)/I(1038) ratios for each region. ... A similar effect can take place between lines of differing optical depth. ...

... Firenze . The extragalactic group is involved in several lines of research covering a variety of topics from theory to observations across the electromagnetic spectrum (from gamma-rays to radio): the primordial Universe; the physical and evolutionary properties of high-redshift galaxies; the physical processes of nearby and distant AGN; the properties of nearby and high-z SNe; the gas, dust and dark matter physics in nearby normal galaxies and starbursts. ... 055 27521 Fax 055 220039 ...

Authors: Yu.G. Shevelev , V.A. Marsakov , . ... We have constructed and investigated properties of metallicity function of disk stars with different ages, proceeding from the statistically restored real altitude distributions of stars at the solar galactocentric distance. It is shown that the metallicity distribution of stars in each age range is not of Gaussian form, but it may be considered as a superposition of two normal distributions centered at -0.2 and 0.0 dex. ...

... Physical Properties of Crystals . ... The course is an introduction into crystal physics and consists of two introductory parts devoted to the basics of crystallography and tensor analysis and six main chapters in which the physical phenomena in anisotropic medium are described by the example of the elastic, electrical and magnetic crystal properties. The effect of symmetry is also discussed. ... Effect of symmetry on crystal properties. ... Effect of symmetry on crystal optical properties. ...

... We present 5GHz high resolution VLA observations of 2,127 radio-- and X-ray--emitting sources found in both the Green Bank (GB) 5GHz radio catalog and the ROSAT All-Sky Survey (RASS). We report core flux densities and positions accurate to =-0.5". ... This table has 1861 rows and 9 columns giving: Catalog source name, RA and DEC (J2000), observation code, S/N ratio, VLA core flux density at 5 GHz (mJy), Green Bank flux density at 5 GHz (mJy), error in Green Bank flux density (mJy), and Notes. ...

... S.Voronin, Some problems of normal forms theory, 1983; . A.Shcherbakov, Noncommutative groups of germs (C,0) ® (C,0) and generic properties of differential equations in the complex projective plane, 1983; . ... S.Trifonov, Divergence of Dulac's series and desingularization in the families of differential equations, 1991; . ... A.Panov, Limit cycles of Abel and Lienard equations, 2002; . I.Pushkar', Generalization of Ilyashenko's theorem on the generation of limit cycles, 2003. ...

... Unsafe act - a behavioral departure from an accepted, normal, or correct procedure or practice which, in the past, has produced injury or property damage or which has potential for doing so in the future; an unnecessary exposure to a hazard; conduct reducing the degree or safety normally present in an activity. ... Any hazardous unsafe condition, or act that presents a situation of imminent danger to life and/or property requires urgent action. ...

... Archives . ... One realization of mine during the meeting was related to a cultural difference; therefore, there is no relation to any presentations during the 212th AAS in this post. ... I cannot cover all perspectives from both disciplines but I think there are two distinct fashions in practicing normalization. $$\frac{1}{N(\theta)}\int_{\Omega} f(x;\theta)dx=1$$ . ... This is my last posting on my first AAS . Tags: AAS , measure , measure theory , normalization , PDF , pmf . ... Chandra Blog . ...

... R-band images obtained at 0.8 arcsec seeing conditions have allowed us to separate foreground star from point-like extragalactic source and estimate their brightness separately. ... To study the nature and properties of the source, we observed it under high spatial resolution. ... CONCLUSION RTT150 optical observations with sub-arcsecond seeing and low resolution spectra confirm the hypothesis of superposition of a radio source onto a `normal' F/G galactic star proposed by [1]. ...

Next: PSF1DRB Up: PIXTOPIXSENS Previous: Generation from Ground Calibration Contents . Ideally the in-orbit PixToPixSens file will be generated from internal calibration measurements using the fullframe high resolution engineering mode. However due to their large data volume the fullframe high resolution data won't be available frequently enough to base the in-flight generation of the PixToPixSens file on the high resolution data. ... i.e. the average counts per pixel per CCD-frame . ...

S PA C E R E S E A R C H I N S T I T U T E RU SSIAN AC ADEMY OF SCIENCE S MEDIA RELE ASE Russian DAN neutron detector successfully switched on upon Martian surface Russian DAN instrument onboard NASA's Curiosity rover (Mars Science Laboratory project) was successfully switched on in Gale crater on August 17, 2012, 14:30 Moscow time, on the 11th sol (martian day), 13:00 local Martian time. ... Neutron generator was developed in N.L. Dukhov AllRussia Research Institute of Automatics. ...

Pulkovo Photographic Plate Database . To find a certain plate, type its number, choose instrument and click button FIND Instrument: Normal Astrograph 26-inch refractor Plate number: . To find plates with a certain sky area: choose instrument, type coordinates (R.A. and Dec.) of the center of this area, type radius of this area, type (optionally) names of required objects, and click button FIND . ...