Next: SLIM: A Program to Simulate the ACS Spectroscopic Modes . ... Previous: On the Fly Bad Pixel Detection for the Chandra X-ray Observatory's Aspect Camera . ... We here present an overview of Celldetect , a source detection program for Chandra. ... Celldetect identifies point sources in the presence of background. ... At each point where a detection is attempted, celldetect uses an appropriately sized cell. ... The background statistics in celldetect change as the cell size increases. ...

... Correcting ETC Calculations of CCD Spectral Observations for CTE Effects . ... HST Overview . Overview . ... Post-Observation . ... ETC . ... ID: CL Script for Applying CTE Loss to Output of Spectroscopic ETC . ... However, the STIS ETC calculations do not incorporate these CTE effects as yet. ... The output from this script should then be used to calculate the appropriate input flux level for a second run of the ETC, which will then yield output which is corrected for the CTE effect. ...

... Meta Index / Home Page This section documents the parameters recognized by this task (if any). Parameter . ... yes . dataset . The list of background maps used in the eboxdetect source detection run. expmapsets . ... The same cutoff value of detection likelihood which was supplied to the parameter of the same name of eboxdetect . ... If psfestyle =`dss', the task seeks a list of mean energy values in the data subspaces of the datasets supplied to the present parameter. astest . ...

... Primordial theory review : Dick Bond . Defects and the CMB review : Andy Albrecht . ... Gravitational wave contribution to CMB anisotropies : V.B. Lukash and E.V. Mikheeva . C_l from cosmic strings : Lloyd Knox . Some aspects of CMB anisotropies induced from topological defects : Mairi Sakellariadou . ... CMB anisotropies from scaling sources : Ruth Durrer . ... SZ observations I : Sarah Church . ... Holes in the microwave sky? ... Detecting cosmic strings in the CMB : James Robinson . ...

... Effective use of large-scale surveys is dictated by the efficiency of detection of the objects of interest. ... It is a stand-alone software package, designed to work with spectral-line FITS cubes and produce source lists and graphical results showing detected objects. ... Figure 2: Example graphical output of Duchamp showing the zeroth moment of each detection, in its appropriate spatial location. ... Innovations in Searching A key aspect of source detection is the application of a threshold. ...

... 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. ...

... 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. ...

Disastrous earthquakes happen 100 to 200 times a year. ... There is a chance that the data of ionospheric plasma observations hold an answer to the latter question. Satellites and ground-based facilities may detect earthquake precursors in the ionosphere a few hours or days before the main shock. ... ULF "Hz"-oscillations have been recorded several hours before the main shock in a narrow magnetic field tube (40...100 km along the satellite trajectory) conjugated with epicenter of the earthquake. ...

... 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. ...

... Ширина: 225 мм . Шины . ... Артикул 3386432 . ...

Next: Gamma-Ray Bursts Up: Detection rate of binary Previous: Detection rate of binary . Figure: A schematic dependence of the detection rate ratio on the detector sensitivity (the upper scale) and the limiting distance from which binary NS (1.4+1.4M , the middle scale) and binary BH (8.5+8.5M , the bottom scale) mergings can be detected. ... At the end of this segment evolutionary effects can affect the detection ratio (the dashed line). ...

... Exposure Time . ... 2000 May 27 . ... 2000 Jun 03 . ... 2000 Dec 10 . ... log N -log S in the soft (0.5 2 keV), hard (2 10 keV), and very hard (5 10 keV) bands from the 1 Ms observations of the CDF-S. The shaded areas indicate uncertainties due to the Poisson statistics (1 ) and the choice of the conversion factor (corresponding to a power law spectrum with = 1.4 0.3). ... Soft [0.5-2 keV] . ... Soft band [0.5-2] keV .. ... Hard band [2-10] keV .. ... Exposure maps . ... Exposure map [0.5-2] keV .. ...

K-band Arcetri Obscured Supernova Search . What is the KAOSS Project? W hat is the KAOSS Project? Some recent surveys aimed at detecting Supernovae (SNe) in the optical have found that starburst galaxies do not show evidence for an enhanced SN rate, with respect to quiescent galaxies (Richmond et al. ... A similar result was obtained by Navasardyan et al. (2001) who looked for SNe in interacting galaxies, finding no evidence for correlations between SN rate and galaxy properties. ...

... 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. ...

... Imagine that for every pixel in the color image, you take its luminance value (that's how bright it appears). ... In the end, you will have a histogram which counts how many times each luminance value appears in the image (that histogram can be used to analyze the distribution of the luminance values in the image). ... For the watermark effect, we want to use the same value that we used in the Stretch Contrast step, so that the lightest color will be in fact white (255), and nothing will get clamped...

Next: References Up: The peculiar post-AGB supergiant Previous: Discussion . We conlude that IRAS04296+3429 is a PPN candidate with a chemical composition which coincides with theoretical predictions for the post-AGB objects: very large excess of carbon and nitrogen are revealed. ... Next: References Up: The peculiar post-AGB supergiant Previous: Discussion Klochkova V.G. 12/20/1999 ...

... The UK has a very vibrant solar system science community highly regarded internationally. ... The PPARC Introductory and Advanced Courses in Solar System Plasmas has, since the1980s, played an important part in the early training of solar, heliospheric, magnetospheric and ionospheric physicists. ... We therefore seek support to provide the 2007 Introductory Solar System Plasmas School, which will provide valuable training for the next generation of solar system scientists . ...

. This Directory contains Model of distribution of density, temperature and effective collision freguency of electrons. Yu.K.Chasovitin. 1998. This Directory contains The program RIM98 for calculating the parameters of the ionosphere to use the "Reference Ionospheric Model-98" (RIM-98).Yu.K.Chasovitin. 1998.

home education . SEARCH ASP SITE: Match ALL words Match ANY word . ... SEED Grants to Scientists . ... The ASP SEED Grant program supports the ASP's mission to advance science and science literacy through astronomy by encouraging active researchers to engage in public outreach, K-14 formal education, or informal education programs or activities. ... Development, use, and dissemination of a well-illustrated college-level presentation on a specific topic or problem in current research . ... search . ...

... Division , Virginia Polytechnic Institute, Blacksburg, VA, 1954-1955; College of William and Mary, Williamsburg, VA, 19591961 PRE- NASA EXPERIENCE: National Advisory Committee for Aeronautics, Langley Aeronautical Laboratory, Langley Field, VA (1954-1958) · Aerospace Technologist, Fluid and Flight Mechanics Branch (1954-1958) NASA Langley Research Center , Hampton, VA (1958-1961) · Aerospace Technologist, Fluid and Flight Mechanics Branch (1958-1961) · Transferred to ...