... Module name: constants . ... Constants . Pi-related constants . Angle conversion factors . Solid angle conversion factors . ... Fundamental physical constants . Energy conversion factors . Solar system constants . Unit conversion routines . ... Per unit frequency . Per unit wavelength . ...

... RECOMMENDED VALUES OF PHYSICAL CONSTANTS AND CONVERSION FACTORS. ... This reference must be included when these constants are used in a context where their full accuracy is important. ... elementary charge (of proton) . ... gravitational constant . ... unified atomic mass constant . ... of electron . ... of proton . ... Planck constant . ... Rydberg constant, m 0 2 m e e 4 c 3 /8h 3 . ... fine structure constant, m 0 e 2 c/2h . ... Bohr radius, h 2 ( pm 0 c 2 m e e 2 ) . ... Bohr magneton, e h /2m e...

Next: Photometry Up: Regions and Source Parameters Previous: *imcnts* - Find counts . This task (developed for use with optical images, but also useful with x-ray data) will quickly compute location, size, ellipticity, and position angle of sources. ... User can generate contour plots of any portion of the image and count rates in slices through the image. The program is advertised as ``quick [optical] photometry''. input file: rp110590_im1.imh . output file: logfile . ... Photometry . ...

... The constants and conversion factors are defined here as double precision values. ... flt_min the minimum single precision floating point number , excluding denormalised numbers minfloat the minimum single precision floating point number , including denormalised numbers dbl_min the minimum double precision floating point number , excluding denormalised numbers mindouble the minimum double precision floating point number , including denormalised numbers flt_max the maximum ...

... Try my Physical Calculator . It is a JavaScript calculator with all of the constants below programmed into it. (converted to CGS units from the NIST Constant Index ) . ... CGS Units . ... Planck constant . ... erg s . 0.60 . ... Gravitational constant . ... Mass of electron . ... Boltzmann constant . ... Radiation density constant . ... Stefan-Boltzmann constant . ... Fine structure constant . ... Fundamental Physical Constants (SI) . Fundamental Physical Constants (SI with errors) . ...

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

... It has been largely superceded by MatWeb . Conversion Factors . Material properties . Physical constants . Astronomical constants . This table gives conversion factors to convert various units to their SI equivalents. ... The units are SI. This is a short list of physical constants in SI units. ... Boltzmann constant . ... Gas constant . ... Mass . ... Plank's . ... Radiation constant . ... This is a short list of astronomical constants in SI units. ... Sun . ...

... N.A.Bobylev, Yu.M.Burman, Morse lemmas for functionals of the variational calculus, Func.Anal.Appl., ... N.A.Bobylev, Yu.M.Burman. ... N.A.Bobylev, Yu.M.Burman, A.B.Shubin, Algorithms for control with a minimal number of switchings, Automation and remote control , V.53, 5:619, 1992. ... TeX file ) . ... Quadratic Poisson brackets compatible with an algebra structure . ... Yu.M.Burman. ... Yu.M.Burman, Whitney's index formula in higher dimensions and Laplace integrals , Preprint math.DG/9801044 . ...

... Plot histogram and time series. Flow Chart GUILD & LIGO Tools Local File (XML) Restore Events Import XML event data into an event container LDAS Meta Database Save Events Process events (Sort, Coincidence, Cluster) Create Histogram and/or Time Series Plot Histogram/ Time Series Event Containers Hierarchy "Chain" container - A set of List containers. ... Holds one event. ... Time Series - Make a Time Series (DMT TSeries container) of the event rate, values of specified column or event function. ...

... HST . ... HST Overview . ... WFC3 . ... Calibration . ... Instrument Handbook . ... The HST Data Handbook also explains how to reprocess the raw data files into calibrated data products using the same STSDAS routines that are used reduce individual images in the calibration pipeline, and contains a brief introduction to the MultiDrizzle software that allows one to remove the image distortion from individual flat-field images and to combine the (usually) dithered images to produce a final data...

It is our pleasure to invite you to Workshop on Precision Physics and Fundamental Physical Constants, which is organized by The Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo, the Russian working group on Fundamental constants, Bogolyubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research (JINR), Dubna. The Workshop will be held in St. Petersburg from October 7 until October 11, 2013. ... fundamental constants of modern physics . ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

... CB3 0HA, U.K. The UCDs (Unified Content Descriptors) were first developed in the ESO/CDS data mining project, to describe precisely the contents of the individual fields (columns) of tables available from a data center. ... We present different applications of UCDs: selection of catalogues, based on their content; identification of catalogues having similar fields; automated data conversion allowing direct comparison of data in cross-identifications. ... a definition of the corresponding UCD; . ...

... Title page . ... This service is divided into four sections (Plasma physics, Regions of interest, Phenomena of interest, Space physics instrumentation and analysis methods) and Appendices, each of which contain several pages. ... Space physics studies Sun (and its extension, the solar wind) and all planets with plasma environments, including Earth. ... Geomagnetic activity . ... For us living at high latitudes, the most remarkable plasma phenomena are the auroras relating to geomagnetic activity. ...

The CHIANTI database consists of 4 primary ASCII files for each ion in the database. contains the energy levels in cm^(-1) It includes both experimental data and theoretical values of the levels energies. References: %observed energy levels (n=2): Fuhr, J.R., et al., NIST Atomic Spectra Database" ver. ... NIST Physical Reference Data %observed energy levels (12,19,23-26,65-67,69,70,72-74,78-82,84,85): Fuhr, J.R., et al., ...

... Contents . ... Sidereal time . ... Ephemeris of the Sun . ... Rectangular equatorial coordinates of the Sun (J2000.0) . ... Aberration, parallax, mean longitude of the Sun, obliquity of the ecliptic, nutation in obliquity . ... Mean longitude of the Moon, mean elements of the Moon's orbit and equator . ... Ephemeris of Venus . ... Ephemeris for physical observations of the Sun . ... Ephemeris for physical observations of the Moon . ... Conversion of mean time to sidereal time (with accuracy 0.01 s )...

AO Home AO Astronomy Schedule Receivers CIMA AO IDL . IDL is the recommended data-reduction package for Arecibo spectral-line data. The different back-ends produce different data format. ... Mock spectrometer standard FITS format headers . Mock spectrometer PSRFITS format headers . WAPP CIMAFITS format headers . Interim Correlator IDL headers . ... Search WAPP data . ... How to fix WAPP FITS files taken with doppler tracking in order to read them with standard FITS readers . ...

In this chapter we will consider two very simple but useful Web agents that I have written on Actor Prolog for my own needs. ... Let us start the Web agent. Fig. ... Start of the Web agent. The Context diagram consists of three blocks: "Logic Programming Sites", "Edit", and "Check". ... Some Web sites that are linked with the logic programming and Prolog are listed in the pulldown list (these addresses are transferred to the "Edit" block from the "Logic Programming Sites" block). ...

... General astronomy . ... PHYSICAL CONSTANTS.. ... Nobel Laureates in Physics 1901-2002 . ... Lectures Astronomy-161 "Solar System" (Also it contains info about History of Astronomy) . ... The History of Science . ... College-Level Astronomy Courses - at American, Australian Universities and Colleges . ... Messier: . ... Science . ... Scientific American . ... JOURNAL OF COMPUTATIONAL PHYSICS . ... Scientific Journals . ... American Physical Society Journals: Physical Review, Review of Modern Physics ...