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1. HERschel Observations of Edge-on Spirals (HEROES). I. Far-infrared morphology
... Edge-on spiral galaxies with prominent dust lanes provide us with an excellent opportunity to study the distribution and properties of the dust within them. ... Aims: Within this first paper, we present the Herschel observations and perform a qualitative and quantitative analysis on them, and we derive some global properties of the far infrared and submillimetre emission. ... Modified black-body fits to the global fluxes, measured using aperture photometry, result in dust temperatures and dust...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/~kgordon/papers/2013A&A...556A..54V.html -- 5.3 Кб -- 21.01.2016
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2. Methods and instruments to measure/monitor major site properties
... 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. ...
[ Сохраненная копия ]  Ссылки http://site2010.sai.msu.ru/section/2 -- 9.2 Кб -- 09.04.2016
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3. Sample Properties
Next: Redshift Distribution Up: Sample Identification Previous: Previously Identified Sources . ... In Figure 3, we plot the redshift distribution of DXRBS FSRQs opposite that of the 1 Jy and S4 samples. In Figure 4, we plot the redshift distribution of DXRBS BL Lacs opposite the Slew and 1 Jy samples. ... The apparent deficit of objects at the very highest luminosities is a result of the smaller area of sky covered by DXRBS compared to, e.g., the Slew and 1 Jy samples. ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/~ppadovan/survey/dxrbs_paper/node11.html -- 5.2 Кб -- 03.12.2003
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4. Time series analysis in the frequency domain
Next: Analysis in the Up: MIDAS utilities for Previous: Fourier analysis . For the detection of smooth signals, e.g. sinusoids, use either SCARGLE/TSA or AOV/TSA with bins. ... SCARGLE/TSA -- . Scargle sine model: This command computes Scargle's (1982) periodogram for unevenly spaced observations x . ... In this way, the command can be used to perform a CLEAN-like analysis manually by removing individual oscillations one by one in the time domain (see Roberts et al. ... AOV/TSA -- . ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Midas_doc/doc/95NOV/vol2/node242.html -- 10.2 Кб -- 23.02.1996
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5. BASIC PROPERTIES
. Next: Spectrum Up: R CORONAE BOREALIS STARS Previous: HISTORICAL BACKGROUND . Figure: The light curve of RCoronae Borealis during a fading event in 1859 . RCB stars were first identified by their characteristic light curves. A part of the light curve of RCrB itself, taken from over a century of observations compiled by Ludendorff (1906) is shown in Figure 1 . Spectrum . Galactic distribution and absolute magnitudes . Numbers and distances . Simon Jeffery . 2002-01-25
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/~csj/research/rcb_review/node3.html -- 3.6 Кб -- 25.01.2002
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6. Spectral energy distribution
... In brief: the frequency-dependent radiative transfer equation is solved for a dust under assumption of spherically-symmetric geometry for its distribution taking into account particle size distribution and quantum heating effects for the very small dust particles. ... Table: Model parameters for IRAS04296+3429. ... parameter . ... hot dust shell) . ... The best fit to the spectral energy distribution of IRAS04296 is shown by heavy solid line (see Table2 for details concerning parameters of the model...
[ Сохраненная копия ]  Ссылки http://mavr.sao.ru/hq/ssl/IRAS04296/node8.html -- 17.5 Кб -- 02.10.2012
[ Сохраненная копия ]  Ссылки http://www.sao.ru/hq/ssl/IRAS04296/node8.html -- 17.5 Кб -- 01.10.2012
[ Сохраненная копия ]  Ссылки http://jet.sao.ru/hq/ssl/IRAS04296/node8.html -- 17.5 Кб -- 01.10.2012
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7. Synthetic Images of the Solar Corona from Octree Representation of 3-D Electron
... Empirical and theoretical modeling of 3-D structures in the solar corona is confronted by the tremendous amount of data needed to represent phenomena with a large dynamic range both in size and magnitude, and with a rapid temporal evolution. Octree representation of the 3-D coronal electron distribution offers the right compromise between resolution and size, allowing computation of synthetic images of the solar corona. ... The time interval between images is one day. ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/adass/proceedings/adass96/llebariaa2.html -- 12.0 Кб -- 23.06.1998
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8. Polarization properties (transmitted radiation)
Next: Polarization efficiency: size/shape/orientation effects Up: Optical properties of cosmic Previous: The 2175? feature . To model the interstellar polarization one needs to calculate the forward-transmitted radiation for an ensemble of non-spherical aligned dust grains. ... Let non-polarized stellar radiation passes through a dusty cloud with a homogeneous magnetic field. ... The angle between the line of sight and the magnetic field is ( ). ... where the angle is connected with and ( ). ...
[ Сохраненная копия ]  Ссылки http://www.astro.spbu.ru/DOP/8-GLIB/ASTNOTES/node5.html -- 24.1 Кб -- 19.11.2010
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9. The AstroStat Slog Blog Archive chi-square distribution [Eqn]
... Archives . ... Reduced and Processed Data . ... 2 distribution plays an incredibly important role in astronomical data analysis, but it is pretty much a black box to most astronomers. ... Comment ( RSS ) | ... I guess in the typical analysis we call chi2 a ?random variable? that follows the chi2 distribution: . ... where D(i) is the observed data, M(i) is the model predicted data and we ?silently? assume that D(i) is normally distributed and each i measurement is independent. ... Chandra Blog . ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/2008/eotw-chisq-distribution/index.html -- 23.3 Кб -- 01.03.2014
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10. ATNF Colloquium
ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Information & tools for observers . ... Australia Telescope Online Archive (ATOA) . ... ATCA | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The Australia Telescope National Facility Colloquium . ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/news/news.php?action=show_item&item_id=651 -- 27.4 Кб -- 01.03.2014
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11. Conversion Factors, Material Properties and Constants
... 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 . ...
[ Сохраненная копия ]  Ссылки http://www.apo.nmsu.edu/Telescopes/SDSS/eng.papers/19950926_ConversionFactors/19950926.html -- 7.7 Кб -- 13.12.2002
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12. SNe related preprints
A comparative study of type I and type II supernovae . ... Sternberg State Astronomical Institute, Moscow, U.S.S.R. (Received 26 November, 1985) . ... No significant difference between SNe I and SNe II has been found in their radial distribution and frequency of outbursts in spiral galaxies. ... The radial distribution of type Ia SNe in spiral galaxies is only slightly steeper than the one for SNe II, while SNe Ib/c are more concentrated towards the central regions. ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/~megera/sn/preprints/ -- 3.7 Кб -- 22.12.2007
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13. Vladimir Marsakov Abstracts
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. ...
[ Сохраненная копия ]  Ссылки http://ip.rsu.ru/~marsakov/abs/abst28.htm -- 4.1 Кб -- 02.02.2007
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14. HISA Poster for the 197th Meeting of the AAS, January, 2001
... We are using Canadian Galactic Plane Survey l 74.2њ, -3.6њ < b This poster gives preliminary results for a full-fledged analysis of the gas properties and distribution of HISA features in the CGPS. ... where T ON and T OFF are observed brightnesses on and off the HISA feature, T S is the spin or excitation temperature of the HISA gas, tau is its optical depth, T C is the continuum intensity, and p is the fraction of H I emission lying behind the HISA feature. ... GIF | ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/~gibson/hisa/poster/2001/ -- 13.7 Кб -- 20.11.2005
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15. Initial Distributions of Binary Parameters
Next: Star Formation Rate and Up: No Title Previous: Calculation of Evolutionary Tracks . To start calculations, we choose the distributions of the initial binary parameters: the mass of the primary ZAMS component, , binary mass ratio, , orbital separation a . ... whereas the mass ratio distribution is not. ... The zero assumption often made is that the mass ratio distribution has a flat shape, that is binaries with a high mass ratio occur as frequently as those with equal masses. ...
[ Сохраненная копия ]  Ссылки http://xray.sai.msu.ru/~mystery/articles/review/node39.html -- 14.1 Кб -- 26.02.1997
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16. http://selena.sai.msu.ru/Shev/Publications/m44_76_sinitsin_shevchenko.pdf
FEATURES OF THE HYDROGEN DISTRIBUTION AROUND LUNAR CRATERS PROCLUS AND KEPLER. ... In result of analysis of the data Lawrence and Feldman constructed the hydrogen distribution on the lunar surface [1]. ... However, the authors shown, that EN flux data features may be explained by other element abundance in the lunar soils, namely: Si, Ca, Gadolinium (Gd), Samarium (Sm) and Fe. ... Using of the Feldman's interpretation of the Lunar Prospector data [8], we constructed hydrogen distribution map (Fig.1). ...
[ Текст ]  Ссылки http://selena.sai.msu.ru/Shev/Publications/m44_76_sinitsin_shevchenko.pdf -- 164.0 Кб -- 16.03.2011
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17. Astronomy HyperText Book
... Stellar Evolution . Nucleosynthesis in Stars . The Evolution of Star Clusters . JAVA Physics Lab . Alternative Energies Class . Steve Kevan's Physics 251 Class . ... Talk on Solid State Physics of CCD detectors . Talk on Cosmological Issues . ... Digital Spectra of Stars . NETexperts E-mail List . The Electronic Universe Project e-mail: nuts@moo.uoregon.edu ...
[ Сохраненная копия ]  Ссылки http://zebu.uoregon.edu/text.html -- 3.3 Кб -- 26.03.1998
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18. http://www.issp.ac.ru/lek/shovkun/abs6.html
... Institute of Solid State Physics, Academy of Sciences of the USSR . Percolation theory is used for a comparative analysis of curves of the superconducting transition in ceramic YBa 2 Cu 3 O 7 - in a zero magnetic field found through measurements of the resistance, R ( T ), and the dynamic susceptibility, ( T ). When there is an oxygen deficiency ( > 0), the grains have a wide distribution with respect to the superconducting transition temperature T c . PACS: 74.70.Vy, 74.60.Mj ...
[ Сохраненная копия ]  Ссылки http://www.issp.ac.ru/lek/shovkun/abs6.html -- 2.5 Кб -- 22.05.2004
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19. Suppression of detector noise at low energies
... While there is practically no detector noise present at energies above , X-ray data below are considerably contaminated by noise events, which become more and more dominant towards the lowest transmitted energies (Fig. ... Investigations of 40 hours of in-orbit calibration data with the filter wheel closed, taken over a period of more than two years, showed that the noise properties vary with position and energy, but are fairly stable in time for most areas on the detector. ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/sas/7.1.0/doc/epreject/node7.html -- 10.4 Кб -- 15.11.2007
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20. Astronomical Society
... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...
[ Сохраненная копия ]  Ссылки http://www.astrosociety.org/ -- 49.2 Кб -- 09.04.2016
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