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http://star.arm.ac.uk/~ambn/abstract240.html.
http://star.arm.ac.uk/~ambn/abstract240.html.
1. Effect of sources evolution on
... 172 ] Briefly, the count rate at the detector from a source at a redshift z is . ... Figure 55 shows the ``Green functions'' for the double compact binary merging rate evolution assuming no collapse anisotropy. ... Another way that diverse peculiarities in the - distribution induced by the sources evolution could arise is connected with a possible non-monotonic character of the star formation rate in galaxies. ... 22 ] Figure 56 shows two-dimensional cuts through the parameter space. ...
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Ссылки http://xray.sai.msu.ru/~mystery/articles/review/node98.html -- 16.9 Кб -- 29.03.1997
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2. http://www.stsci.edu/ftp/meetings/galaxy-morphology/im.ps
A Test of Galaxy Evolutionary Models Via Angular Sizes M. Im S. Casertano, R. E. Griffiths, & K. U. Ratnatunga (The Johns Hopkins University) The relationship between angular size, magnitude, and redshift of faint galaxies is explored as a potential tool to distinguish between different galaxy evolutionary models. ... The mild lumi nosity evolution model predicts more luminous galaxies of large angular size at high redshift, as does a standard no evolution model. ... 25) with redshift higher than z ? ...
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Ссылки http://www.stsci.edu/ftp/meetings/galaxy-morphology/im.ps -- 225.3 Кб -- 07.09.1994
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3. Astronomy HyperText Book: Stellar Evolution
... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...
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Ссылки http://zebu.uoregon.edu/textbook/se.html -- 4.8 Кб -- 16.12.1997
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4. COALA - Computational Astrophysics Laboratory
Chiaki Kobayashi, Ralph Sutherland How galaxies did form and evolution? - to answer this unsolved problem, we are simulating the formation and evolutionary history of galaxies in the Universe, including star formation, supernovae feedback, and chemical enrichment. Comparing the spacial distribution of elements within galaxies with observations, we will examine fundamental physical processes that drive galaxy formation. ... COALA : Universe Galaxy AGN Star Planet ...
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Ссылки http://www.mso.anu.edu.au/coala/galaxy.html -- 5.9 Кб -- 01.10.2012
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5. Informational system "Evolution of RG"
The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...
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Ссылки http://www.sao.ru/sed/ -- 4.7 Кб -- 15.07.2001
[ Сохраненная копия ] Ссылки http://sed.sao.ru/ -- 4.7 Кб -- 15.07.2001
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[ Сохраненная копия ] Ссылки http://sed.sao.ru/ -- 4.7 Кб -- 15.07.2001
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6. INTERBALL Tail Probe flight longterm situation analysis 1995 - 2000
The longterm orbit evolution and ballistic lifetime 1995 - 2000 . The annual distribution of the key magnetospheric regions covered by the orbit in 1995 - 2000 . ... As a result of this evolution the Tail probe will stop his ballistic life in the middle October 2000. ... Back to the Top . ... Back to the INTERBALL Home Page . Back to the IKI Satellite Situation Center (SSC) Home Page . Back to the Space Research Institute (IKI) Home Page . ... Satellite Situation Center, Senior Scientist . ...
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Ссылки http://www.iki.rssi.ru/vprokhor/ftlong.htm -- 3.7 Кб -- 09.03.2000
[ Сохраненная копия ] Ссылки http://www.cosmos.ru/vprokhor/ftlong.htm -- 3.7 Кб -- 09.03.2000
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[ Сохраненная копия ] Ссылки http://www.cosmos.ru/vprokhor/ftlong.htm -- 3.7 Кб -- 09.03.2000
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7. http://hea-www.harvard.edu/AstroStat/astro193/YutongShan_A193_q-distr_slides_updated.pdf
The Stats of Couples From Pairing Algorithms to Binary Mass-Ratio Distributions Yutong Shan Binary Formation: Theory vs. Observation How do we think most Binaries form? ... 2009) Mass-Ratio Distribution: жpik's Law Observed binary mass-ratio distribution is often `fitted' with a power law: жpik's Law: f(q) ~ q q = Msecondary/Mpri mary жpik's Exponent, Equal-mass favoured Unequal-mass favoured Primary Mass (Mprim) Flat Often stated as a function of Primary Mass q = Msec / Mprim (Raghavan et al. ...
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Ссылки http://hea-www.harvard.edu/AstroStat/astro193/YutongShan_A193_q-distr_slides_updated.pdf -- 2879.2 Кб -- 04.05.2015
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8. Noise distributions
... Using the central limit theorem, the total noise can be approximated by a Gaussian or normal distribution which has the frequency function : . ... where is the mean intensity of the source. ... In the statistical analysis of the probability distribution of data several estimators based on moments are used. ... For a normal distribution, these moments are and while for a Poisson distribution are and . Besides these moments other estimators are used to describe a distribution e.g. median and mode . ...
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Ссылки http://www.sao.ru/precise/Midas_doc/doc/94NOV/vol2/node13.html -- 6.1 Кб -- 23.02.1996
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9. Synthetic Star Forming Region HRDs
T his page contains synthetic Hertzsprung-Russell Diagrams (HRDs) for a simulated Star Forming Region, assuming different scenarios and timescales for the history of star formation. ... In the paper we only presented the best fits to the HRD of the CMa R1 Star Forming Region. ... Download movie (1.90 MB) . Scenario II: Constant rate of star formation during a time interval delta t . delta t = 0.1 Myr . ... Scenario IV: Linearly decreasing rate of star formation during a time interval delta t . ...
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Ссылки http://www.eso.org/~mvandena/cluster_movies.html -- 8.3 Кб -- 18.02.2009
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10. How to extract MOS spectra of a point-like source and associated matrices
... This thread contains a step-by-step recipe to extract MOS spectra of a point-like source observed in Imaging mode and to create associated response matrices, starting from a calibrated, concatenated event list (either produced with emproc or available as PPS product; here it has the assumed file name MOS.fits ). ... The users should note that the SAS metatask xmmselect allows them to interactively define source and background regions (via ds9) and to run backscale on the fly. ...
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Ссылки http://xmm.vilspa.esa.es/sas/7.0.0/documentation/threads/MOS_spectrum_thread.html -- 11.6 Кб -- 15.06.2007
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11. Vladimir Marsakov Abstracts
... The obtained results lead to the following conclusions: a) the heavy element enrichment had taken place in the Galaxy in a few bursts of its activity rether than in a continuons manner; b) these bursts occured during the callapse of the early Galaxy; c) the star formation had been inhibited in the time of the bursts; d) the metal enrichment did not proceed in the periods of star formation, between these bursts of activity. ...
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Ссылки http://ip.rsu.ru/~marsakov/abs/abst4.htm -- 3.3 Кб -- 02.02.2007
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12. ATNF Daily Astronomy Picture
... ATNF Colloquium: The role of environment in galaxy evolution . ... Our speaker will review the most recent results on the study of the role of the environment in galaxy evolution based on the analysis of multifrequency data of nearby clusters, and in particular of Virgo. The multifrequency data covering the whole range from UV to radio centimetres are compared to the predictions of tuned models of galaxy evolution in dense environments. ... today * ATNF | ...
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Ссылки http://www.atnf.csiro.au/ATNF-DailyImage/archive/2016/16-Mar-2016.html -- 4.6 Кб -- 10.04.2016
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13. See Spike Run... Run, Spike, Run
... It provides long range planning information to the scheduling team; it provides bright object, timing, and orientation information to the observation planning team; and it provides graphical description of the observations and their constraints. ... The GUI graphically displays the constraints that are computed by Spike and stored in the description files and in the database. ... BOAS processes all bright objects that have entered the database since the last time BOAS was run. ...
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Ссылки http://www.adass.org/adass/proceedings/adass00/P2-20/ -- 9.5 Кб -- 29.05.2001
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14. A homogeneous chemical analysis of the inner Galactic disk from the first data
... A homogeneous chemical analysis of the inner Galactic disk from the first data release of Gaia-ESO . ... Gaia-ESO is a public spectroscopic survey designed with this goal in mind. ... These first results highlight the potential of the Gaia-ESO survey to explore areas of the Milky Way still poorly studied, such as the inner disk, and to give new constraints on Galactic chemical evolution models. ... Map of observed targets of the first data release of the Gaia-ESO Survey. ...
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Ссылки http://www.arcetri.astro.it/en/previous/204-scientific-news/698-gaia-eso -- 24.8 Кб -- 10.04.2016
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15. 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...
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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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[ 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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16. compare dlpf shapes
Jeff mock supplied 6 different types of filters to use with the high resolution mode of the mock spectrometer. ... Plots were made of the time domain voltage response as well as the frequency domain power response. A decimation of 10 was used for the filter decimation. this gave a filter length of 80 coeff. The plots compare the filter shapes for these filter types (.ps) ( .pdf ) . ... Each color is a different filter type . middle: spectral density reponse for each filter . ...
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Ссылки http://www.naic.edu/~phil/hardware/pdev/pdevgain/lpdfTypesCompare.html -- 3.2 Кб -- 03.10.2013
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17. REMOTE SENSING OF OCEAN SURFACE STATE
... We are developing the following problems: a) combine optical and microwave technic to the indication of non-linear surface waves and wave breaking field; b) modelling of microwave propagation in a multiphase air-water interface; c) obtain quantitative dependencies of microwave radiation on geometry and statistics of wave breaking field in ocean surface; d) monitoring of ocean surface states using optical amd microwave airspace data sets. ... Important issue is spray and underwater bubbles. ...
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Ссылки http://www.iki.rssi.ru/raizer/osmp.html -- 5.4 Кб -- 25.03.1996
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18. Analysis of a cosine wave
... Take a particularly simple signal: a cosine wave. ... Now, we are going to stretch and shrink the wavelet along the time axis (we assume the data is in the time domain), and at each time compare the shape of the signal to that of the wavelet. ... Figure 3: The wavelet (dotted line) is translated rela tive to the signal (solid line). ... Figure 4: The dashed line plots the `match' between the wavelets (dotted line) and the signal (solid line) as a function of time. ...
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Ссылки http://crydee.sai.msu.ru/~vab/Wavelet.rsc/Tutor.dir/node4.html -- 6.1 Кб -- 12.04.1998
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19. Low-Mass Star Formation
Next: Jets Up: M.D. Smith Previous: High-Mass Star Formation Contents . By contrast, stars of low mass like our Sun are formed within molecular clumps. Michael Smith has been investigating the clumps and the individual cores they contain within one nearby cloud near the star Rho Ophiuchi. With Stanke (Hawaii), Khanzadyan (Heidelberg) and Gredel (Calar Alto), he has determined the masses of over 100 protostellar cores and compared this to the distribution of masses for stars. ...
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Ссылки http://star.arm.ac.uk/annrep/annrep2004/node58.html -- 5.7 Кб -- 19.04.2005
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20. RNested тАУ Nested Sampling in R analysis of spectra Bojan Nikolic web pages
... Bojan Nikolic web pages (r. 329) . ... Analysis of (radio) spectra . The RNested package is a re-implementation of the main algorithms from the radiospec package into the R statistical data analysis environment. ... packages ( "RNested" , repos = c ( "http://www.mrao.cam.ac.uk/~bn204/soft/R" , "http://cran.us.r-project.org" )) . ... RNested ? Nested Sampling in R & analysis of spectra . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...
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Ссылки http://www.mrao.cam.ac.uk/~bn204/galevol/speca/rnested.html -- 10.0 Кб -- 04.04.2016
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