... The degree of correlation between two parameters can visually be estimated by plotting them. Numerically this is expressed by the correlation coefficient : . ... When the correlation coefficient indicates a significant correlation, the functional relation is given by the regression line which is computed by least squares methods for normal distributions or maximum likelihood procedures (see Section ). ... Such transformation may also be used to make the variance of a variable homogenous. ...

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• Group IAG
• Comparison using a multiresolution quality criterion
• PLOT/COR

USING THE CORRELATION BETWEEN ISGRI SURVEY RESULTS AND OTHER CATALOGUES TO AID SOURCE IDENTIFICATION John B. Stephen, A. Malizia and L. Bassani IASF-INAF, Via P. Gobetti 101, 40129 Bologna, ITALY, E-mail: stephen@iasfbo.inaf.it ABSTRACT In order to help in the identification of INTEGRAL/ISGRI sources, we have developed a software package which allows a rapid and detailed cross-correlation to be performed between various source catalogues. ... We show below some preliminary results from this analysis. ...

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• Титарчук Лев Григорьевич (NRL)

... Previous: Time Series Analysis of Unequally Spaced Data: Intercomparison Between Estimators of the Power Spectrum . ... The aperture synthesis technique well known in radio astronomy is adapted to the spectral analysis of the time series. ... Analogously, when the time series is given at all points of some interval or at time points regularly spaced within the interval, the evaluation of the periodogram can be made quite easily. ... Now we apply this idea to time series analysis. ...

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• Generalized Spherical Harmonics for All-Sky Polarization Studies
• A Multidimensional Binary Search Tree for Star Catalog Correlations
• Large Scale Clustering in the Universe - A Package of Codes

. Back to the main page . Short introduction into the Correlation Analysis (written by A.F.Kholtygin, in russian)

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• Analysis of AstrophysiАal Data: Links

Альтернативный форум . Scientific.ru Все форумы . ... x203a; x203a; x203a; в ответ на: ... о магии чисел Владимир Привалов . Громадное спасибо Владимир Привалов! ... Чем ближе к математике, тем интересней. http://groups-beta.google.com/group/sci.astro/msg/... ближе к математике: . ... Formula for pairs of conjugate gravitational correlations. We shall name "pairs of conjugate gravitational correlations" the . ... Gravitational correlations for groups of four planets. ... planets. ...

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• Scientific.ru Старый форум

Next: Gaussian Chirplet Up: The Chirplet Transform: Previous: Overview . The STFT consists of a correlation of the signal with constant-size portions of a wave, while the wavelet transform consists of correlations with a constant-Q family of functions. ... Although the former is generally thought of as a time-frequency method, and the latter, a time-scale method , both attempt to localize the signal in the time-frequency plane. ... Gaussian Chirplet . ... Gaussian Chirplet Transform (GCT) . ...

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• Data reduction: moments, conditional sampling, etc
• List of pdf-files from AA magazine

... Main page News People . ASA . Master . Master net Homepage . ... MASTER . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . ... Latest news and news archive . ... 01.09.2010 . ... All news ...

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. Russian Version [ MS-Win ] . [ News ] . [ Satellite data ] . [ SMIS ] . [ ] . The program is intended for spectral and correlation analysis of satellite images. It contains an large set of spectral and spatial filters. It may be applied for interpolation and data analysis in areas with incomplete information. It allows for approximation of spectrum and correlation functions. Price . Back to SMIS Home Page .

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Next: Mission Operations Data Transfer . ... VLBI Tape Management . VLBI Tapes . ... When: As soon as the correlator is satisfied with the correlator output. back to top . ... What: Each correlator will maintain a data base including the status of all VLBI tapes under its control. ... The correlators will distribute tapes to mission elements based on the Observation Summary File produced by the RSOG ( Observation Summary File ) to ensure each element has enough tapes to support SVLBI observations. ...

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• Description of the RadioAstron project, english version

... Первая страница Назад Продолжить Последняя страница Обзор Изображения . Публикации с ключевыми словами: Галактика - звездная астрономия . Публикации со словами: Галактика - звездная астрономия . ... Дальний рукав в 3 кпк от центра . Лекции по Галактической Астрономии. ... Стрелец A*: быстрые звезды вблизи центра Галактики . ... KINO.RU - фильмы, кино театры, кино, расписание кино в г. Москва | ... Дизайн квартир и дизайн интерьера . ... Нужно рекламное агентство? ...

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• The Dancing Auroras of Saturn
• Астронет > Семинары на 08 декабря 2009 > Астрономия.
• Астронет > Семинары на 08 декабря 2009 > Физика.

... A correlation between metal abundance and orbital elements (the eccentricity and angular momentum) has been found for three semples of disk stars of our Galaxy with abundance derived from detailed analysis. The correlation indicates that metal abundance in the Galaxy kept increasing after the birth of old disk stars and that the Galaxy kept collapsing during the formation of its disk subsystems. ...

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• RR LYRAE VARIABLES SUBSYSTEMS IN THE GALAXY, figures
• Globular clusters with anomalously small masses, figures

... It is found that the correlation coefficients between these two parameters calculated separately inside and outside the sunspot formation zone ±30 have cyclic variation and occur in anti-phase. This suggests different mechanisms of formation of the corona in the fields of small, medium, and large scales. ... The relationship between the coronal green line brightness (CGLB) and the magnetic field strength (MFS) has been investigated by constructing the corresponding synoptic maps for the 1977-2001. ...

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• http://www.izmiran.rssi.ru/~ichertok/SEPs_radio/abstract_en.html
• Spectra of raduo bursts and SEPs

CORRELATIONS OF MEDIUM. SCALAR F I E L D I N THE STOCHASTIC A. Z. Bolginov, Ioffe Physical-Technical Institute 194021, Politekhnicheskaya, 26, Leningrad USSR N. A. Silant'ev Pulkovo Astronomical Observatory 196140, Leningrad USSR ABSTRACT: Correlations between the scalar field values (temperature, particle number etc.) in two space - time points in the turbulent medium are considered. Explicit analytical fore of correlators is obtained. ...

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• http://mavr.sao.ru/hq/lizm/conferences/pdf/1987/1987_p133-p133.pdf
• http://mavr.sao.ru/Doc-k8/Science/seminar/Klypin/LCDMissues.pdf
• http://mavr.sao.ru/hq/lizm/conferences/pdf/1991/1992_1_p65-p65.pdf

Polycyclic aromatic hydrocarbons in HII regions: correlation with metallicity . ... We have perfomed the aperture photometry of HII regions using infrared images from telescopes Spitzer and Herschel at passbands 3.6, 4.5, 5.8, 8.0, 24, 70 and 160 m. Emission of PAHs are observed at passbands 3.6 - 8.0 m, 24 m is emission likely of hot small particles and finally large particles are responsible for emission at 70 and 160 m. We determine abundances of PAHs using model of Draine Li (2007) . ...

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• Star Formation History
• On current distance scales for open clusters

Microsymposium 38, MS080, 2003 (A4 format) PHYSICAL AND MINERALOGY CHARACTERISTICS OF THE LUNAR REGOLITH IN THE AREAS OF THE THERMAL ANOMALIES. ... Comparison of the local cumulative number of particles N per 104 m2 and photometric roughness parameter I. In this report we research data of the IR thermal radiation, the rough structure of the lunar regolith and mineralogy characteristics upper layer of the surface. ... The spatial graphical function of the lunar-surface thermal radiation. ... Figure 3. ...

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• http://selena.sai.msu.ru/Shev/Publications/m44_76_sinitsin_shevchenko.pdf
• http://selena.sai.msu.ru/Laz/Publications/7_Automated%20creation%20of%20the%20lunar%20hypsometric%20map%20techniques%20of%20compiling.pdf
• http://selena.sai.msu.ru/Shev/Publications/ms38/ms085.pdf

... Search for correlation of gravitational detector noise background with astrophysical events accompanied by neutrino and gamma radiation" . ... In addition to the old method of searching for coincident reaction of two separated gravitational antennae it is proposed to seek perturbations of the gravitational detector noise background correlated with astrophysical events such as neutrino and gamma ray bursts registered by correspondent detectors. ...

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• Conference Programm
• Космические лучи и климат

... 2005: . ... Orbital period of an X-ray transient source in the system CI Cam. For the first time, the orbital motion of a compact component of the X-ray transient CI Cam has been found, the orbital period (19.41 days) and eccentricity (0.62) have been determined, masses of stars of the system have been estimated. The compact component of the system is most likely to be a white dwarf. Archive . ...

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• Detection of polarized radiation sources with unusual spectral characteristics
• important11-15_en
• The dust jets in the nucleus of comet 29P/Schwassmann-Wachmann 1

Figure 6. The squares show the telescope defocus data from August 15 (Figure 5) plotted as a function of time. For the defocus data the y-axis is in units of ?m. The circles show the telescope altitude in degrees as a function of time. As expected from the good linear correlation seen in Figure 5, the data very much look like they are driven by altitude changes. ... Second, notice that the defocus data consists of pairs of points which were taken at nearly the same telescope altitude. ...

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• Astrophysical Research Consortium - Apache Point Observatory

FORTIN Jean-Yves Present address: Laboratoire International Franco-Russe (LIFR) 119002, Bolshoy Vlasyevskiy Pereulok 11, Moscow Phone: +7 905 2916722 Fax: +7 905 2916501 Email: fortin@lpt1.u-strasbg.fr September 2005 RESUME Main research interests · Nature of the disorder driven transition in random field Ising magnets. ... Recent publications [Ref. 1] Maxime Clusel and Jean-Yves Fortin, 1D action and partition function for the 2D Ising model with a boundary magnetic field, J. Phys. A: Math. ...

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• http://www.mccme.ru/dfc/2009/reports/Oblezin2010.pdf
• http://www.mccme.ru/lifr/greb/school_rhodes.pdf
• http://www.mccme.ru/lifr/greb/talks/Chelkak.pdf

... File Summary: ------------------------------------------------------------------------------- File Name Lrec Records Explanations readme 80 24 This file cat_3.dat 21 2444 Cepheid radial velocities ------------------------------------------------------------------------------- File cat_3.dat : ------------------------------------------------------------------------------- Bytes Format Units Explanations 1-5 Star ...

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