... To go through each file in the current directory and compare it with the same filename in another directory: #!/bin/sh # compare files to same file in directory "old" for i in * do echo $i: cmp $i old/$i echo done . ... Some examples of command substitution in for loops: #!/bin/sh # do something for all files in current # directory according to time modified for i in `ls -t` do ... done # do something for all non-fred files. for i in `cat filelist | ...

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... Cheers, -Mike Data Providers (e.g., data centers, archives) Provider Name: NOAO Collection: High Resolution Atlas of Arcturus Spectra - 0.92-5.36 microns Characteristics: 310 ASCII tables of wavenumber vs flux Storage Format: Text tables Available online: ftp://ftp.noao.edu/catalogs/arcturusatlas/ir Comments: Tables contain three flux values (arcturus spectrum, telluric spectrum and ratio) for both summer and winter observations. ... Linelists also available as text table ...

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• MAO NASU :: Topic: Open access submissions and content now available (1/1)

... The procedure of radiometer signal integration can be considered as a sort of reducing dimension of the initial sampling space, where the samples are the result of analog-to-digital conversion. ... The probability distribution of the signal and spikes is completely known. ... The quality of the considered algorithm could be also illustrated by Figure 2 . ... One could see the considered adaptive algorithm is preferable even by low degree of compression, because all spikes have been depressed. ...

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• Observational data and reduction
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The stability of the MHD tangential discontinuity is studied in compressible plasmas in the presence of anisotropic viscosity and thermal conductivity. The general dispersion equation is derived and solutions to this dispersion equation and stability criteria are obtained for the limiting cases of incompressible and cold plasmas. In these two limiting cases the effect of thermal conductivity vanishes and the solutions are only influenced by viscosity. ...

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... Bad Astronomy . ... On Thursday, February 15th 2001 (and replayed on March 19), the Fox TV network aired a program called ``Conspiracy Theory: Did We Land on the Moon?'', hosted by X-Files actor Mitch Pileggi. ... Dust around the lander . ... However, it appeals to our common sense: when the sky is black here on Earth, we see stars. ... Bad: The program claims that when the top half of the lander took off from the Moon to bring the astronauts back into orbit, there was no flame from the rocket. ...

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... Compatibility: Available in Apache 1.3 and later. Available as an External module in Apache 1.1 and later. ... It does its work by comparing each document name in the requested directory against the requested document name without regard to case , and allowing up to one misspelling (character insertion / omission / transposition or wrong character). ... Compatibility: CheckSpelling was available as a separately available module for Apache 1.1, but was limited to miscapitalizations. ...

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... Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... What are typical star-to-star distances in globular clusters compared to stellar distances in our region of the galaxy? ... RELATED TOPICS: GLOBULAR CLUSTERS . ... Get instant access to subscriber content on Astronomy.com! ...

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• The SETI Institute is after alien signals. Assuming another world is beaming a

M. D. Neusel Texas Tech University Lubbock, United States mara.d.neusel@ttu.edu Degree b ounds, the regular representation, and invariants of p ermutation groups in general Let F be a field, G a finite group, and consider a faithful representation of G : G GL(n, F) of degree n over F. Via the group G acts on the vector space V = Fn , hence on the dual space V , and thus on the symmetric algebra on the dual, denoted by F[V ]. ... Let : G GL(n, F) be an arbitrary nonmodular representation. ...

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• MCCME: Moscow Center for Continuous Mathematical Education

... Light curves resulting from electron scattering absorption in this envelope were computed and compared with observed IBIS/ISGRI and BATSE light curves. ... Assuming approximately 10-6 solar mass/year for the rate of the WR-wind, the observed light curves and accretion luminosity can be re-produced (assuming Thomson scattering opacity in the ionized He-rich envelope). ... Reduced 2-values between the models and ISGRI light curves vs inclination, for different mass ratios and wind velocities. ...

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Next: GOCG Post-Observation Products . ... Reconstructed Orbit . JPL MMNAV Reconstructed Orbit . ... The JPL MMNAV files will be made available on the JPL MMNAV FTP site in directory [RAstron.ODDATA.JPLICV.TRACK] (note the capital letters). back to top . ... What: X-band Doppler tracking data will be transmitted in near real-time from the DSN GTS to the JPL MMNAV team and from the Pushchino GTS to the ASC navigation team, and post-pass (via FTP) from the GBTS to the JPL MMNAV team. ...

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... arXiv.org . astro-ph . ... 1] oai:arXiv.org:1012.5438 [ pdf ] - 1386111 . ... Lemmon, Tyler J. ; Mondragon, Antonio R. Comments: 20 pages, 3 figures. Focus of paper is model with relativistic mass in the gravitational potential. arXiv admin note: text overlap with arXiv:0906.1221 . Submitted: 2010-12-24 , last modified: 2016-04-07 . ... Latitudinal Distribution of the Photospheric Magnetic Fields of Different Magnitudes . ... Submitted: 2015-04-09 , last modified: 2016-04-07 . ...

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Astronomy Discussion Forums . Forums: . ... Here's A Definition Of 'possible' . ... Post Message | ... Posted by Harvey on October 21, 2002 18:48:54 UTC . ... Oops - harvey1 - October 21, 2002 - 18:50 UTC . ... I hope Stafford doesn't mind my intruding his forum - mrsouza - November 8, 2002 - 14:55 UTC . ... 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" . ...

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• Astronomy articles, forums, listings, and other resources about Astronomy.

... The first task assumes the searching for chemical composition and sizes of particles which give the wavelength dependence of the extinction efficiencies close to the observed dependence of . Figure 7: Wavelength dependence of the extinction efficiency factors for homogeneous spherical particles of different sizes consisting of astronomical silicate and amorphous carbon. The dashed segment shows the approximate wavelength dependence of the mean galactic extinction curve at optical wavelengths. ...

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• Database of Optical Properties -- Level: subpage
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Atmospheric influence on the different radio-engineering system functioning . ESTIMATION OF ATMOSPHERIC OPTICAL CHARACTERISTICS AND REMOTELY SANSED IMAGE CORRECTION . ... Direct transmittance estimation results for 12 channels of the spectrometer CHRIS. ... We have managed to develop a direct method of estimating the discrete Normalized Atmospheric Point Spread Function (NAPSF) from available images alone, not using any external sources of information about the atmosphere. ... IRE RAS 1996-20 11 ...

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• Making a Case for METI

... By using the tools of sections (20) and (21), the mathematics of approximate solutions developed in (M-5), and assuming all orbits are circles, it is a relatively straightforward job to calculate the distance to the Lagrangian L1 point (or to L2). ... Let the gravitational constant be denoted by G , the mass of the Sun by M , that of Earth by m , the Earth's distance from the Sun by r and its velocity in its orbit by v . ... GMm / r 2 = mv 2 / r . and multiplying both sides by r / m . ...

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• Energetic Particles
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... In this work, we investigate some a new possibility to estimate correlations between radio source position catalogs (RSC). ... Catalogs AUS AUS AUS AUS AUS AUS BKG BKG BKG BKG BKG GSF GSF GSF BKG GSF IAA MAO OPA USN GSF IAA MAO OPA USN IAA MAO OPA USN MAO OPA USN OPA USN GSF IAA IAA IAA MAO With correlations, the system to be solve consists of the equations: The key point is to obtain a reliable estimates of ij. ...

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... This report examines the mechanical properties of a cylindrical plug held into a cylindrical hole by a ribbed plastic sleeve of uniform cross-section (figure 1). ... Figure 1: ribbed platic sleeve The plug is entirely retained by friction between the ribs and the plug and hole. ... is the coefficient of static friction and is the normal force of the plug (or hole) on each rib. Using to denote the stress on a compressed rib, the retention force due to one rib is: . ...

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Version 3.0 June 18, 2001 Parasitic Light in NGST instruments: the accuracy of photometric redshifts and the effect of filter leaks in the visible and near IR camera. ... In order to correctly identify star forming galaxies in the redshift range 5 z 9 and earlytype galaxies above z 2 and avoid confusion with other SEDs it is mandatory to have photometric information in optical bands, besides a standard IR filter-set like F 110 F 160 K L M . ... 6ґ Fig. ... Upper panel: F 606 panel: F 110 F 160 vs. ...

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... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...

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... CBET now has an M31 novae page , M33 novae page , and an M81 novae page . ... Also, see W. Pietsch's M31 (apparent) optical nova catalogue , M33 novae catalog , and M81 novae catalog Please note that I do not keep track of galactic novae . Nova M81 2016-04a? (= PNV J09560598+6900401 ), ATEL 8904 discovered 2016/04/02.876 by Kamil Hornoch and H. Kucakova . ... Nova M31 2016-03a? (= PNV J00421695+4059098 ), CBAT TOCP discovered 2016/03/01.721 by unknown . ... other extragalactic Novae from 2016 . ...

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