... During the analysis of the surveys carried out on RATAN-600, it was found that almost one fifth of the detected sources shows significant radio flux variations. ... We used the data from "Cold" radio surveys carried out with RATAN-600 in 1980-1994 to search for radio sources with significant flux variability. ... On possibility of detection of variable sources using the data of Cold surveys carried out on RATAN-600. ... Detection of Variable Sources Using the Data of "Cold" Surveys. ...

... In order to disentangle the effects of different climate variables on tree-ring growth rates of different species, and to explore the possibility that more than one species could improve the accuracy of the reconstructions of climate using tree rings, a methodical study of trees in close proximity to the Armagh Observatory climate station was initiated together with Ana Maria Garc?a Su?rez, and continued as part of the latter's PhD thesis with John Butler and Professor Mike Baillie (QUB). ...

SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...

... OB used an idea to take into account the known gravitational lensing time delay to get combined radio and optical light curves and then to use them for determination of the p ossible radio-from-optical time delay. ... We fix some moment of time as t0 . ... So we can calculate the needed correction: S (t) = V · (t - t0 ) 365d (2) to b e added to dates in the optical light curves: ti = ti + S (ti ) (3) Assuming that a p ortion of radio flux decreases as a p ower-law function of time with exp onent . ...

... Apache HTTP Server Version 2.4 . ... Although the Apache HTTP Server provides generic error responses in the event of 4xx or 5xx HTTP status codes, these responses are rather stark, uninformative, and can be intimidating to site users. ... Additionally, a set of values are provided, so that the error document can be customized further based on the values of these variables, using Server Side Includes . ... Customizing Error Responses . ... ErrorDocument 500 http://error.example.com/server_error.html...

Peremennye Zvezdy", . ... Star Name: . 2MASS 20031968+6504085 . ... The variability of 2MASS 20031968+6504085 was discovered using a series of 58 unfiltered CCD images obtained with the MASTER-Amur robotic telescope (D = 400 mm, F = 1000 mm, Apogee Alta U16m CCD camera; Lipunov et al. 2010) between January 26 and March 27, 2011. After the standard calibration (dark subtraction, flat fielding) the images were processed with the VaST variability search software (Sokolovsky Lebedev 2005). ...

... 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.. ...

Variable A in M33 is a member of a rare class of highly luminous, evolved stars near the upper luminosity boundary that show sudden and dramatic shifts in apparent temperature due to the formation of optically thick winds in high mass loss episodes. Recent optical and infrared spectroscopy and imaging reveal that its ``eruption,'' begun in ~1950, has ended, having lasted ~45 yr. ... ADS ] . ADS Citation Query . citations = 29 . citations vs. year [year,citations] . ...

... 371Gregory Taylor . ... We persent a catalog of 1274 discrete sources detected during a 5 yr, 6 cm, radio-patrol survey of the galactic plane for variavle sources. ... Seventy-five percent of the sources are weaker than 75 mJy, and as a consequence reliable sources and 27 possible variables were detected, of which 64 % exhibited shirt-term variability. ... A comparison with previous centimeter variability studies suggests the possible existence of two distinnct variability components. ...

... specadd creates a multiple X-ray spectrum FITS file by stacking or putting together (``adding'') two single spectrum files. ... This type of spectral files is particularly useful when the user wants to simultaneously analyse different observations of the same object carried out with the same instrument or with different instruments. ... The Data extension for a multiple spectral dataset stores one single spectrum per row, instead of one channel per row as it is the case of single spectrum files. ...

The Apache HTTP Server provides a mechanism for storing information in named variables that are called environment variables . ... For additional flexibility, the directives provided by mod_setenvif allow environment variables to be set on a per-request basis, conditional on characteristics of particular requests. ... As discussed above, the environment passed to CGI scripts includes standard meta-information about the request in addition to any variables set within the Apache configuration. ...

... Posts tagged ?Efron? ... The notions of missing data are overall different between two communities. ... Tags: bootstrap , catalog , Efron , estimator , ignorable , imputation , incompleteness , Little , MAR , MCAR , missing data , nonparametric , Rubin , Schafer , survey . ... 2 Comments . ... Astronomers confront with various censored and truncated data. ... Tags: censored , Efron , Feigelson , Freedman , massive data , Nelson , Petrosian , survival analysis , truncated . ... Comment . ...