. N OTE: . Only clusters with R<60 kpc were used to compute the spatial parameters and metallicity gradients for all subsystems except the corona. The numbers in parantheses give the number of clusters for which the corresponding parameter is known. The X O scale length of the old halo is strongly distorted by the observed asymmetry of the distribution of the corresponding clusters projected onto the XY plane ( Fig. 4А ) . discussion in the text | previous table .

Еще в разделе: (Показать все результаты (>157) - ip.rsu.ru/ )

• Population of Galactic globular clusters, figures
• Vladimir Marsakov Publication List
• F-stars in galactic disk, figures

... 87.1083Owen+ VIII/29 1400-MHz Survey of 1478 Abell Clusters of Galaxies (Owen+ 1982) ================================================================================ A 1400-MHz Survey of 1478 Abell Clusters of Galaxies Owen F.N., White R.A., Hilldrup K.C., Hanisch R.J. =1982AJ.. ... 0,] Major axis error 70- 71 A2 --- n_MajAxi *[ A, B, C,NR, ] Major axis note 73- 74 I2 arcmin MinAxi *? ... Note on dist-C: Ratio of the distance of the source from the cluster center to the corrected Abell cluster...

Еще в разделе: (Показать все результаты (>2288) - www.sao.ru/ )

• Noise distributions
• A 20 cm VLA survey of Abell clusters of galaxies
• HyperLEDA documentation: parameter: pgc

... Meta Index / Home Page . ... Description . Errors . ... Keyword TIMEDEL missing in Input File . ... Negative background values in Input File . ... Negative count rates in Input File . ... Null or negative Bin Width in Input File . ... CONTENT parameter for input file is .. ... Keyword CONTENT missing in Input File . ... Keyword EXPOSURE missing in Input File . ... Keyword HDUCLASS missing in Input File . ... Keyword TSTART missing in Input . ... Null or negative exposure time in Input File . ...

Еще в разделе: (Показать все результаты (>13241) - xmm.vilspa.esa.es/ )

• Description
• Routines to return random numbers in various distributions

... The absolute magnitude of the RCBs in the LMC and the small number of Galactic RCBs implies that they are very rare stars. Together with statistics for related stars, the total number of hydrogen-deficient stars in the Galaxy is estimated to be about 1000 ([ Warner 1967 ]). Whilst the luminosity of RCBs is similar to that of other low-mass stars as they evolve rapidly from the asymptotic giant branch to become white dwarfs, their frequency is much lower. ...

Еще в разделе: (Показать все результаты (>2680) - star.arm.ac.uk/ )

• Galactic distribution and absolute magnitudes
• IAJ: Contents - Volume 22 Number 1
• Checking for disk errors with badblocks

... Posts tagged ?background? ... Probability density functions are another way of summarizing the consequences of assuming a Gaussian error distribution when the true distribution is Poisson. We can compute the posterior probability of the intensity of a source , when some number of counts are observed in a source region, and the background is estimated using counts observed in a different region. ... In both cases a background of 200 counts collected in an area 40x the source area is used. ...

Еще в разделе: (Показать все результаты (>4325) - hea-www.harvard.edu/ )

• The AstroStat Slog Blog Archive my first AAS. IV. clustering
• Comments on: chi-square distribution [Eqn] By: Alex By: vlk By: aneta By: aneta
• The AstroStat Slog PDF

... Hanisch provided me with the ``right'' answers for the stars in the simulated cluster, so it's easy to determine the error of each magnitude determination: find the star in the truth file that falls nearest to the position of each star in my photometric output, and compute the difference between their magnitudes. The question of how to encapsulate these magnitude differences in an overall figure of merit for the reduction procedure deserves some thought. ...

Еще в разделе: (Показать все результаты (>19090) - www.stsci.edu/ )

• CSPICE Routines: ERRDP_C
• Model Fitting
• HST this week: 113

... We address a question if globular clusters (GC) in a protogalaxy could for some time evolve chemically as isolated systems, enriching themselves with heavy elements produced in first supernova events that follow initial star formation. We determine both the critical mass of a protoglobular cluster that is needed to retain the ejecta of the very first supernova, and the critical energy (i.e., number of supernovae) that is needed to expel the residual gas from a cluster of a given mass. ...

Еще в разделе: (Показать все результаты (>29) - www.inasan.rssi.ru/ )

Download Izmccd (~2.7 MB). ... for 1-5 bytes is number of a numbered minor planet, . ... Positions 1-80 file "mpcreportiz.txt" are similar to positions of file "mpcreport.txt". 83-95 – errors of unit weight, . ... If this tag is " 1 0 " , this record contains results of measurements of an image of object (approximation by "PSF"),  . ... 57-66 – error in X (pixels), for first star in a multicentric image, for subsequent it is error in (distance between first star in the image and this), . ...

Еще в разделе: (Показать все результаты (>8) - www.izmccd.puldb.ru/ )

... Tools . ... In order to generate random numbers that follow a normal distribution, one first needs to create two uniform random numbers $u_{1}$ and $u_{2}$, in the range of 0 to 1. ... begin{equation*} g_{1} = \sqrt{-2 \ln(u_{1})} \cos(2 \pi u_{2}) \end{equation*} . ... Random numbers following a power law, $P(x) \propto x^{n}$, can be generated from a single uniform random number, $u$, in the range of 0 to 1 through the following transform : . ...

Еще в разделе: (Показать все результаты (>20462) - www.atnf.csiro.au/ )

• casacore: casa::RNG Class Reference
• Number input
• Unified Radio Catalog: results for Version 1.1

messages (errors info) /************************************************************************/ /* Message numbers m of CP/DHB driver (-300 m 300) */ /************************************************************************/ 41 [ ] [ CPDHB ] Driver synchronous 40 [ ] [ CPDHB ] Driver not synchronous 31 [ ] [ CPDHB ] Job received 30 [ ] [ CPDHB ] No job received 15 [ ] [ CPDHB ] FETCH with RW received 14 [ ] [ 304 [ ] Data recording finished! ...

Еще в разделе: (Показать все результаты (>4856) - www.naic.edu/ )

• ATOMS by Number
• jun12-dec12 sysperf,pnterror
• a2130 cal deflection

Here you can see an image of the central part of the Fornax Cluster taken from the Digital Sky Survey. ... We studied the globular cluster systems (GCSs) of 5 early type galaxies in the Fornax cluster: NGC 1374, NGC1379, NGC 1387, NGC 1427, and the central giant elliptical NGC 1399. ... See our papers ``The central region of the Fornax cluster - I. A catalog and photometric properties of galaxies in selected CCD fields'' and ``The central region of the Fornax cluster - II. ...

Еще в разделе: (Показать все результаты (>48142) - www.eso.org/ )

• http://www.eso.org/projects/dfs/team/QA-code-review-form.doc
• http://www.eso.org/~qc/procs/VNC/uves.chkVNCserver
• DFS Department internal procedure for issue of documentation

... Forum: The Linux Kernel Hackers' Guide . ... Keywords: kernel tuning, file handles, Bus error . ... Increasing number of open file handles in kernel. I have successfully increased the number of files on my system (Linux 2.0.30) by editing the following file: . ... I also increased NR_INODE to 5000, and NR_FILE to 4096. I then rebuilt the Kernel (and modules for good measure) and installed the new image. ... Increasing number of open files parameter by Simon Cooper . ...

Еще в разделе: (Показать все результаты (>7909) - www.arcetri.astro.it/ )

• Register_*dev() can assign an unused major number.
• Increasing number of open files parameter
• File Descriptor Limits - Apache HTTP Server

... The first column gives the star identification number, followed by X, Y positions in mm. The zero point of these offsets is star number 1 which lies at 21:24:20.52 +36:30:25.6 (equator and equinox 2000). Next are relative proper motions (muX and muY) and their errors (ex and ey) in 10**4 arcsec/yr, followed by calculated V magnitudes. The final column gives the calculated membership probabilities in percent. ...

Еще в разделе: (Показать все результаты (>3487) - www.sai.msu.su/ )

• Index of /groups/cluster/CEP/RADVEL
• JavaScript Random Number Tester
• FTS Dictionary Example

... The numbers of three types of compact binaries containing accreting NSs and BHs, which are most interesting from the point of view of their observational appearances, have been calculated as a function of time: i) X-ray transient source containing a NS in an eccentric orbit around a main sequence Be-star (the observed prototype: A0535+26), ii) BH The evolution of the selected types of X-ray binaries during the first 10 million years after the starburst onset is presented in Fig. ...

Еще в разделе: (Показать все результаты (>708) - xray.sai.msu.ru/ )

• Frequency distribution of galactic binaries
• Binary Pulsar Diversity and High Neutron Star Birth Velocity
• Galactic Gravitational Wave Background

ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...

Еще в разделе: (Показать все результаты (>29) - www.sai.msu.ru/ )

. Hercules Cluster of Galaxies . Coma Cluster of Galaxies . HST picture of intermediate redshift cluster . Distant HST Cluster ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

Еще в разделе: (Показать все результаты (>423) - zebu.uoregon.edu/ )

• Astronomy HyperText Book: Stellar Clusters
• Observational Constraints
• Constrains on Dark Matter

... The perceptron structure, on the basis of which the database is built, is defined by a number of the input and output parameters and a required accuracy. ... The output perceptron data are the expansion coefficients of the scattering matrix elements in series of the generalized spherical functions. ... As the cluster structure depends on the generation conditions the expansion coefficients were averaged over 5--7 realizations of the clusters (for N . ... is the coefficient number. ...

Еще в разделе: (Показать все результаты (>314) - www.astro.spbu.ru/ )

• Model of clusters
• Методы объекта Number

... 319, P L1-L4 (1997). ... Article in PDF format (128 KB) . ... 319, P L9-L12 (1997). ... 319, P L13-L16 (1997). ... 319, P L17-L20 (1997). ... 319, P L21-L24 (1997). ... 319, P L25-L28 (1997). ... 319, P 729-736 (1997). ... 319, P 737-746 (1997). ... 319, P 747-756 (1997). ... 319, P 757-763 (1997). ... 319, P 764-780 (1997). ... 319, P 781-787 (1997). ... 319, P 788-795 (1997). ... Using the Earth orientation parameters to link the Hipparcos and VLBI reference frames . ... helpdesk@link.springer.de ...

Еще в разделе: (Показать все результаты (>4062) - crydee.sai.msu.ru/ )

• Springer LINK:A&A-EE: Table of Contents Volume 317 Number 2 (1997)
• Springer LINK:A&A-EE: Table of Contents Volume 318 Number 1 (1997)
• Springer LINK:A&A-EE: Table of Contents Volume 320 Number 3 (1997)

Sloan Digital Sky Survey Telescope Technical Note 19970527 Walter Siegmund . ... Pointing Error Budget . ... The interleaved strips and adjacent stripes overlap about 1 arc minute. ... However, a 2-D pointing accuracy of 3 arc seconds RMS leads to acceptibly uniform overlap and minimises the number of cases that require special handling (Table 3). ... A guide fiber bundle diameter of 16.5 arc seconds and a pointing accuracy of 3 arc sec RMS results in 99% initial success in acquiring guide stars. ...

Еще в разделе: (Показать все результаты (>735) - www.apo.nmsu.edu/ )

• Hipparcos Tycho catalog
• TUI:Scripts:Built In Scripts:Telescope:Pointing Data
• Procedure for Part Numbering Convention: Larry Carey, 2005

... Let us first find out which way -- rise in spectral resolution with some loss in the S/N ratio or increase in the S/N ratio with a fixed spectral resolution -- is better for the purpose of reduction of equivalent width determination errors. ... N -- number of counts for 1 ? ... line equivalent width, . ... Thus if the spectral resolution is managed to be increased (i.e. to decrease )without loss in the number of counts falling at 1 ?, the equivalent width measurement error is then proportional to . ...

Еще в разделе: (Показать все результаты (>1200) - jet.sao.ru/ )

• comedi_strerror
• comedi_perror
• comedi_errno