... Archives . ... The PCA and ICA is used for separating mixed components with some assumptions. ... The need of source separation methods in astronomy has led various adaptations of decomposition methods available. ... I rarely come up with a paper which gathered and summarized component separation methods applicable to astronomical data. In that regards, the following paper seems useful to overview methods of reducing dimensionality for astronomers. [arxiv:0805.0269] . ... Chandra Blog . ...

Еще в разделе: (Показать все результаты (>3476) - hea-www.harvard.edu/ )

• Comments on: [ArXiv] component separation methods By: hlee By: Sam Leach
• The AstroStat Slog component separation
• Chandra Images for SNR J0519.5-6902

We present results of new Monte Carlo calculations made with the DIRTY code of radiative transfer of stellar and scattered radiation for a dusty giant late-type galaxy like the Milky Way, which illustrate the effect of the attenuation of stellar light by internal dust on the integrated photometry of the individual bulge and disk components. ... In addition, we find that the structure of the dusty ISM affects more sensitively the observed magnitudes than the observed colors of both bulge and disk. ...

Еще в разделе: (Показать все результаты (>11563) - www.stsci.edu/ )

• Attenuation Effects in Spiral Galaxies: Multiwavelength Photometry and Disk

. IMA Conference on Multiscale Stochastic Processes Analyzed using multifractals and wavelets, Cambridge UK, March 29-31, 1993. Unpublished. The main results appear in appendix to my `Hamiltonian' paper . Jacques Lewalle, jlewalle@syr.edu

Еще в разделе: (Показать все результаты (>1495) - crydee.sai.msu.ru/ )

• Coaxial jets

... astro-ph . ... Whitespace-separated words are treated as AND ed. Show 10 50 100 articles per page in Full Compact mode . ... Quasar Variability in the Framework of Poissonian Models . ... It is shown that in this very general framework the well established anti-correlation between variability amplitude and wavelength can only be understood as an effect of an underlying spectral component which remains stable on long time-scales, and is redder than the variable component. ...

Еще в разделе: (Показать все результаты (>40055) - vo.astronet.ru/ )

Marc White . ... Turbulent entrainment processes may play an important role in the outflows from young stellar objects at all stages of their evolution. In particular, lateral entrainment of ambient material by high-velocity, well-collimated protostellar jets may be the cause of the multiple emission-line velocity components observed in the microjet-scale outflows driven by classical T Tauri stars. ... University of Amsterdam; STARPLAN, Copenhagen, Jul 2013 . ... E marc.white@anu.edu.au . ...

Еще в разделе: (Показать все результаты (>489) - www.mso.anu.edu.au/ )

• Richard Woolley and Jim Banham inspecting optical and mechanical components,

... In the remainder of this licence agreement these components are referred to as the "MEDC-owned components of BSMEM". In consideration of the agreement of you, the Licensee, to abide by the terms and conditions of this Licence, MEDC grants to the Licensee a right to use and display the MEDC-owned components of BSMEM at the Premises specified and under the conditions below. ... The MEDC-owned components of BSMEM are made available under this Licence solely for use as part of BSMEM. ...

Еще в разделе: (Показать все результаты (>1346) - www.mrao.cam.ac.uk/ )

• Inference of Coefficients for Use in Phase Correction Bojan Nikolic web pages
• Inference of Coefficients for Use in Phase Correction
• Simulating Atmospheric Phase Errors, Phase Correction and the Impact on ALMA

... Polar Cap Potential . ... The solar wind propagation delay time calculation used here is conceptually similar to the T(IMF) calculation in Kelly, et al. ... The older continuous data are from key parameter data files. ... Note: Very high values of Solar Wind Speed, Solar Wind Pressure, IMF Magnitude and Bz, and Polar Cap Potential are likely indications that WIND has reentered the Earth's magnetosphere; such data is not indicative of solar wind conditions or impending severe geomagnetic disruption. ...

Еще в разделе: (Показать все результаты (>518) - www.iki.rssi.ru/ )

• Space Weather Dials Interpretation Guide

. Next slide . Back to first slide . View graphic version .

Еще в разделе: (Показать все результаты (>5179) - xmm.vilspa.esa.es/ )

• Goodness of fit:
• Cross References to In-Flight Calibration Targets
• RGS Related CAL Routines

... A technique allowing automatic representation by a relatively small number of independent parameters based on the principal component analysis of data sequences is presented. ... In recent years the spectrum of observed astronomical data can be characterized as greatly varied. ... In this instance, the problem of initial description and classification of newly-observed data becomes most urgent, especially if there is a lack of preliminary observational material and theoretical expectations. ...

Еще в разделе: (Показать все результаты (>1559) - www.adass.org/ )

• Calculating the Position and Velocity Components of HST
• Modelling Spectro-photometric Characteristics of Eclipsing Binaries
• TwoFitlines: An Spectrum and Line Analysis Tool

... Minute Values of Geomagnetic Field Components . ... AA 1868 - Present (3 hourly and daily) (monthly) (yearly) (Lists and histograms of geomagnetic disturbance and Solar Sunspots) KP_AP 1932 - Present (3 hourly and daily) (Lists and histograms of geomagnetic disturbance and Solar Sunspots) AE_HV 1957-75, 78-88 (hourly) AE_MIN 1978-881-6;198903;1990-94 (minute) DST 1957 - Present (hourly) PC 1975 - Present (15-minute) AMANAS 1959 - Present (3 hourly and daily) KMKNKS 1983 - Present (3 hourly) . ...

Еще в разделе: (Показать все результаты (>88) - www.wdcb.ru/ )

... Assured of a reliable method of solving the normal equations, we now consider the equations of condition. The observed magnitude m of a star at M air masses with true instrumental magnitude is modelled as ([ 10 ], [ 28 ]) . ... The effective extinction coefficient depends on the effective spectral gradient [ 29 ] of the star, for which we use some color index, affected by half the atmospheric reddening ([ 26 ], [ 10 ]): . ... Thus, for the B band of UBV, we use the (U-V) color. ...

Еще в разделе: (Показать все результаты (>1604) - www.sao.ru/ )

• Corrections to the probability distribution
• Time series analysis in the frequency domain
• Principal Components Analysis

... Paranal and La Silla general information and long term statistics of various parameters relevant for observational astronomy. on meteorology, telescope environment, atmospheric turbulence, and related topics (includes links to some other sites) . ... Databases for the Characterization of Astronomical Observatories Workshop La Laguna, Tenerife, Canary Islands, Spain; 22-23 June 2015 . ... Astroclimatology of Chajnantor . ... Photometry: Night Sky Quality at Mauna Kea , Cerro Pachon , CTIO and IAC . ...

Еще в разделе: (Показать все результаты (>44760) - www.eso.org/ )

• The format of STARTABLE
• The Effect of Continuum Variability on Spectral Indices
• How DFS components access databases

... Can do almost everything that Miriad, AIPS and Difmap can plus more. ... Component Fluxes cont. ... Model fit to VSOP and ground- only VLBI data in Difmap ) Tasks, commands Miriad task Visibility plane model fitting Image plane model fitting Image plane integrated flux Uvfit, uvmodel Difmap command Modelfit AIPS task Uvfit, (slime) Aips ++ function image .fitsky, imagefitter (spatial), image .maxfit, image .fitprofile, imageprofiler image .statistics image .getchunk, ...

Еще в разделе: (Показать все результаты (>9723) - www.atnf.csiro.au/ )

• PPTA Wiki | Projects / Tnoise
• casacore: components/SpectralComponents/SpectralEstimate.h File Reference
• casacore: components/SpectralComponents/ProfileFit1D.h Source File

... We study in this paper the effect of shock excitation of leaky and surface modes by the p-polarized electromagnetic wave incident on the rapidly ionized gaseous or solid layer. ... For example, if [pic] (solid density, multiple ionized plasma), the basic frequency [pic], [pic], [pic] we find, that the wavelength of leaky wave [pic] is in soft x rays band. ... If [pic] (low density gaseous plasma), the basic frequency [pic], [pic], [pic] we find, that the wavelength of leaky wave [pic] is in THz band...

Еще в разделе: (Показать все результаты (>780) - www.cosmos.ru/ )

• Main results of the experimental and theoretical research completed in 2009
• Electrons

... Product details: . ... 2 Composition/Data on components: . ... Information pertaining to particular dangers for man and environment . ... 4 First aid measures . ... Use fire fighting measures that suit the surrounding fire. ... Measures for environmental protection: . ... This information is furnished without warranty, and any use of the product not in conformance with this Material Safety Data Sheet, or in combination with any other product or process, is the responsibility of the user. ...

Еще в разделе: (Показать все результаты (>1039) - www.issp.ac.ru/ )

• Laboratory of materials for electrochemical technologies ISSP RAS
• CdS Safety Data Sheet
• Same fundamental technology results

... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...

Еще в разделе: (Показать все результаты (>56) - space.univ.kiev.ua/ )

• HIGH RESOLUTION IONOSPHERIC MASS SPECTROMETER P-11

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Effect of each component of ejection velocity on descending nodal distance, as a function of true anomaly when transverse (black line); radial (red line); normal component (blue line) = 1 km s тИТ1 for (a) C/2012 S1 ISON (b) Marsden family comets. ... In this work, we do a mathematical study to check whether meteoroids ejected from this comet during its journey around the sun can produce spectacular meteor phenomena on...

Еще в разделе: (Показать все результаты (>1929) - star.arm.ac.uk/ )

• Abstract 206
• Armagh Observatory Sitemap

The Yarkovsky Effect in the Motion of NEAs . ... In this paper we evaluate the Yarkovsky effect on the motion of NEAs under the assumption that this acceleration depends on heliocentric distance as 1/r 2 and is characterized by the transverse component 2 in the orbital coordinate system. ... In some instances the Yarkovsky effect can be estimated by using only optical observations. Accounting for the Yarkovsky effect permits to include more optical observations in the orbit fitting process. ...

Еще в разделе: (Показать все результаты (>419) - www.ipa.nw.ru/ )

• Keywords_200
• (Untitled)
• Statistics of diacritical characters in Minor Planets Names

... This is possible at modest cost due to the low moments of inertia of the telescope and enclosure. ... This same performance will be achieved in higher winds when the telescope enclosure is facing away from the wind, or by using wind screens. ... The telescope system (MILT) will be remotely operable with an on-site operator's assistance by an astronomer located at one of the ARC member institutions. ... Mean Wind Speed . ... Offsets > 10 deg: 1 arc sec rms max . ... 5 sec max, tracking to tracking . ...

Еще в разделе: (Показать все результаты (>423) - www.apo.nmsu.edu/ )

• Telescope Tracking Smoothness
• Weather Summary
• Telescope Parameters

TOOLS OF TEST GENERATION FOR SATELLITES CONTROL PROGRAMS Andrey Tyugashev, Ekaterina Myasnikova, Elena Sopchenko S.P. Korolyov Samara State Aerospace University (National Reseach University) The paper presents a research in the field of test automation for testing spacecraft control programs. ... Programmers or designers of spacecraft systems write tests manually. ... Tests are carried out by issuing the control actions on the spacecraft and condition monitoring systems parameters of the spacecraft. ...

Еще в разделе: (Показать все результаты (>425) - www.ssau.ru/ )