... 77, 1995 R. A. Shaw, H. E. Payne, and J. J. E. Hayes, eds. Cheating Poisson: A Biased Method for Detecting Faint Sources in All­Sky Survey Data J. W. Lewis Center for EUV Astrophysics, 2150 Kittredge St., University of California, Berkeley, CA 94720--5030 Abstract. One approach to compiling a catalog of point sources from all­sky survey data is to apply a source detection algorithm to the entire data set and include in the catalog any location whose significance exceeds some minimum value. ...

... omdetect (omdetect-5.14.2) [?? ... The parameter nsigma (default value=2 controls the minimum detection threshold, ie all pixels with a value greater than or equal to background value + nsigma background noise will be considered to be part of a possible source. ... The parameter minsignificance (default value=2) controls what sources are kept in the source-list- all detected sources with a computed significance less than or equal to minsignificance are discarded. ...

This source is hiding behind our Galaxy at a distance of ~18 Mpc, located at a galactic latitide of 0 degrees. ... As we look towards longer wavelengths, 60 micron, to try and penetrate the Galactic Plane, we still see confusion from galactic sources. ... If the image seems some what confusing that is because the MOST is a continuum radio telescope and when it looks in the direction of our Galaxy it detects radiation from sources within our Galaxy and from sources that may lie behind our Galaxy. ...

... generates irreproducible results, Nature Methods 12, 179 http://www.nature.com/nmeth/journal/v12/n3/full/nmeth.3288.html · · · Source Detection Survival Analysis Upper Limits Source Detection · The process of source detection is an application of p-value based null hypothesis rejection Background usually estimated locally, and multiple tests are made on ... Why is this not an upper limit? ... Set the max probability of a false detection, (e.g., =0.003 for a "3" detection) 3. ...

We present submillimeter statistical detections of galaxies discovered in the 5'У?5' Spitzer Early Release Observations (to ~4-15 ЮМJy 5 Я? at 3.6-8 ЮМm, 170 ЮМJy at 24 ЮМm) through a stacking analysis of our reanalyzed SCUBA 8 mJy survey maps and a Spitzer identification of a new submillimeter point source in the 8 mJy survey region. ... We also marginally detect the Spitzer 24 ЮМm galaxies at 850 ЮМm at 97% confidence and place limits on the mean submillimeter fluxes of the 3.6 and 4.5 ЮМm sources. ...

... 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. ...

... 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. ...

... Structure Detection in Low Intensity X­Ray Images using the Wavelet Transform Applied to Galaxy Cluster Cores Analysis Jean­Luc Starck and Marguerite Pierre CEA/DSM/DAPNIA F­91191 Gif­sur­Yvette cedex Abstract. ... Multi­resolution filtering methods based on the wavelet coe#cients detection are also discussed. Finally, using a set of ROSAT HRI deep pointings, the presence of small­scale structures in the central regions of clusters of galaxies is investigated. ... 1995; Rosati et al. ... 1996). ...

... Astrophysics Group . Research . Cosmic Microwave Background (CMB) . ... A significant fraction of the Astrophysics Group is involved in work on the Cosmic Microwave Background, both experimental and theoretical. We are currently operating the Arcminute Microkelvin Imager , an arcminute-scale survey telescope, and developing analysis techniques for the Planck satellite. ... 2013, Astrophysics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE . ...

... Figure 8: Can you detect the motion of the near-Earth asteroid 2000PH against the background stars during its close approach to Earth around 27 July 2004? ... Down) observed and imaged the unusual near-Earth asteroid 2000PH during its close approach to the Earth around 27 July 2004. The observations were carried out remotely using the new 2m aperture Faulkes telescope situated on the 10,000-foot summit of Haleakala, on the island of Maui in Hawaii. ...

... Catalog . ... The catalog of clusters of galaxies presented in Tundo et al. 2012 , detected from the GRB follow-up fields of XRT archive, containing 72 galaxy clusters with soft net counts > 100. View the catalog and images . ... The tables presented in Tozzi et al. 2013 in preparation . View the redshift information of catalog I . View the X-ray spectra information of catalog I . ROSAT 400d . ROSAT MACS . ROSAT WARPS . ROSAT REFLEX . ... XMM XCS . XMM LSS . ...

The Variable Gamma-Ray Source 2CG 135+01 ApJ, 497:L89-L91, 1998 7 h gamma AGN variability . gamma-radio-AGN-variability ADS query . ... Model for the High-Energy Emission from Blazars 1993ApJ.. ... Possible Production of High-Energy Gamma Rays from Proton Acceleration in the Extragalactic Radio Source Markarian 501 astro-ph/9803241 K.Mannheim . ... A theoretical unifying scheme for gamma-ray bright blazars astro-ph/9807317 G. Ghisellini, A. Celotti, G. Fossati, L. Maraschi, A. Comastri . ...

Since 1991 I have mainly worked on Nearby Supernovae, carrying out optical spectroscopy and photometry. ... Supernovae . ... A list of all my publications can be found here , while refereed papers can be seen here . ... A review on The Age of Wonder (published on Science, People and Politics) . ... In this way, we know how to react to the inevitable discrepancies that are found when we compare the results of our calculations with measurements of the real things. ... Back To Nando Patat Home Page ...

... 2015 . ... Observations using the Arecibo S-band (2380 MHz, 12.6 cm) planetary radar system started in 1976 and its power and sensitivity were greatly improved with the telescope upgrade and Gregorian-dome installation in the mid-1990s. Below, we show the number of near-Earth asteroids attempted and detected since the radar program resumed in 1998. ... The number of NHATS objects detected with Arecibo similarly jumped in 2012, and 2015 was again a record year, where we detected 23 of these objects. ...

Automatic Detection of NEOs in CCD Frames . ... CCD frames obtained with modern telescopes with robotic operation allow carrying out standard observation programs for detection of peculiar objects on stellar backgrounds, as is the case of Near Earth Objects (NEOs). ... In this paper, we present original algorithms for automatically detecting dim NEO images in telescope frames, considering both sidereal and differential tracking [2]. ...

PUL VLBI Analysis Center . ... IVS : International VLBI Service for Geodesy and Astrometry . ... An IVS VLBI Analysis Center at the Central Astronomical Observatory at Pulkovo of the Russian Academy of Sciences, also widely known as Pulkovo Observatory, has been organized in September 2006. ... The center is a part of the Pulkovo EOP and Reference Systems Analysis Center (PERSAC) . ... Results of VLBI data analysis can be found at Pulkovo EOP and Reference Systems Analysis Center (PERSAC) page. ...

... In LABORATORY OF RADIO ASTROPHYSICS OF SPECIAL ASTROPHYSICAL OBSERVATORY OF RAS . ... History . ... Current problems of the group research interests: . study for cosmic microwave background, . study of radio galaxies (identification, evolution, statistical investigation of population), . investigation of the RATAN-600 antenna, . observations in the survey mode with RATAN-600 and their analysis, . creation of the software for data analysis. vo @ sao.ru ( Oleg Verkhodanov ) ...

Determination of short-term proper motions of fast stars with Pulkovo Normal Astrograph. ... Khovritchev Laboratory of Astrometry and Stellar Astronomy of the Pulkovo Observatory, RAS, Saint-Petersburg Observations Normal Astrograph (D/F=33 cm/3.5m), CCD camera: S2C, FOV = 18x16 arcmin, Pixel size 900x900 mas Determination of the new proper motions of 413 LSPM stars 1 epoch : CCD-surveys and catalogs -- M2000, CMC14, 2MASS, SDSS DR7 2 epoch : CCD-observations with the ...

... 2005 International University Bremen (Bremen, Germany) . ... 2005 International Conference "Topology, Analysis, and Applications in Mathematical Physics", Moscow State University, (Moscow, Russsia); invited speaker . July 2004 Max Planck Institute for Mathematics (Bonn, Germany) . ... June 2004 International Conference "Representation theory, Dynamical Systems, and Asymptotic Combinatorics", Euler International Mathematical Institute" (St. Petersburg, Russia); invited speaker . ...

Development and Application of Logical Actors Mathematical Apparatus for Logic Programming of Web Agents Alexei A. Morozov Institute of Radio Engineering and Electronics RAS Mokhovaya 11, Moscow 125009, Russia AlexeiMorozov@netscape.net, morozov@mail.cplire.ru One of the most interesting and promising approaches to programming Internet agents is logic programming of agents. ... One of the first control strategies was created for the execution of sequential logic programs with logical actors [2]. ...