... Higher Criticism Statistic: Theory and Applications in Cosmology and Astronomy [.pdf] . ... pdf ] . ... Fitting Narrow Emission Lines in X-ray Spectra [.pdf] . ... A Convex Hull Peeling Depth Approach to Nonparametric Massive Multivariate Data Analysis with Applications . Abstract: We explore the convex hull peeling process to develop empirical tools for statistical inferences on multivariate massive data. ... We define the convex hull peeling depth, which enables to order multivariate data. ...

During observation the target is placed at the aperture (PC1, WF2, WFALL, etc.) specified on the Phase II proposal. ... The POS TARG special requirement can be used when a position offset is needed. ... The exact directions of the offsets are parallel to the rows and columns of the CCD on which the aperture is specified. ... This is specified in the Phase II proposal using the ORIENT special requirement. ... Figure 7.9 shows the CCD orientation and aperture locations relative to the U3 axis. ...

... Latest Supernovae . ... Sorted by Name For the years covered, 7501 supernovae and 114 extragalactic novae were reported. 378 of these supernovae were named by CBAT, 1714 were given possible supernova designations, and 5409 were not reported to CBAT. 220 supernovae were found in NGC/IC galaxies, 875 were found in named galaxies 343 objects were discovered by amateurs 4 were brighter than 13th Magnitude 208 were brighter than 16th Magnitude 1080 were brighter than 18th Magnitude 1349 ...

Next: First Catalog Sources Up: The Second EGRET Catalog Previous: Catalog Construction . ... For each observation with 3, the excess is presented as a flux with its uncertainty. ... For all except the brightest sources or those in confused regions, the statistical uncertainty is larger than any systematic uncertainties. ... The primary catalog is Table 4. ... Other names -- the source name from the first EGRET catalog ([ Fichtel et al. 1994b ]) or other gamma-ray references. ...

... While there is practically no detector noise present at energies above , X-ray data below are considerably contaminated by noise events, which become more and more dominant towards the lowest transmitted energies (Fig. ... Investigations of 40 hours of in-orbit calibration data with the filter wheel closed, taken over a period of more than two years, showed that the noise properties vary with position and energy, but are fairly stable in time for most areas on the detector. ...

... The standard science quicklook processing produces over a dozen sky maps at each downlink, and these maps are automatically searched for potential transient point sources. ... We have found that a heuristic modification of a formula derived by Li & Ma (1983) provides reasonably accurate estimates of p -values for point source detections even for very low p -value detections. ... Case 1u. The most straightforward approach uses the signal , where . ... To get a p -value, use . ...

The yellow arrow in the picture identifies the position of the black hole transient inside Centaurus A. The location of the object is coincident with gigantic dust lanes that obscure visible and X-ray light from large regions of Centaurus A. Other interesting X-ray features include the central active nucleus, a powerful jet, and a large lobe that covers most of the lower-right of the image. ...

... Miriad has a couple of tasks available for finding positions of sources (see also cgcurs in Chapter 17 ). ... It fits a 2-D parabola to the image intensities in a 3 by 3 pixel box centred on the brightest pixel in a specified region and reports the fitted location and intensity. ... Input image . ... The quality of your fit can improve significantly by selecting a snug region, and/or using the clip keyword to keep pixel values with little signal (e.g. sidelobes and noise) out of the fitting process....

The offsets (in focal plane and sky) are shown for various configurations (.ps) ( .pdf ): . Each plot shows the location of the 19 dipoles in various positions. ... On 29jun10 i switched to use the measured center locations on the sky.. but: . ... Page 1,2 have the dipoles as they are mounted on the positioner with no rotation. ... Page 3: Dipoles at center (focal plane) . ... Page 5: Dipoles at center and positions A1-A6 (focal plane) . Page 6: Dipoles at center and positions A1-A6 (on sky) . ...

... 1.Magnetic and magneto-elastic properties of heavy rare earth metals. ... High magnetic fields of 100 kOe and more were necessary to saturate the magnetization of havy rare earth metals. ... It was shown that the effective exchange field theory is sufficient for the description of the magnetic order in heavy rare earth metals and their compounds. ... The duality of the state of the magnetic carriers in the traditional 3d-magnetic materials. ... LHPP ISSP RAS © 2004 All rights reserved ...

... Gamma Ray Burst, Supernova Bump . ... During April and May, attention has been focused on the western evening sky, presenting its spectacle of bright planets and crescent moons shortly after sunset. Meanwhile, the Sun itself has not been just sinking quietly below the horizon. Tail Wags of Comet Ikeya Zhang . ... The star that appears to powers the nebula, although young and bright, does not seem hot enough to create some of the colors observed. ... At the Edge of the Helix Nebula . ...

... 2000 January 22 . Magnetar In The Sky . ... SGR 1900+14 is believed to be a city-sized , spinning, super-magnetic neutron star, or Magnetar. How strong is a Magnetar's magnetic field? The Earth's magnetic field which deflects compass needles is measured to be about 1 Gauss , the strongest fields sustainable in Earth-based laboratories are about 100,000 Gauss, yet the Magnetar's monster magnetic field is estimated to be 1,000,000,000,000,000 Gauss. ... About APOD | ...

Next: Library, Archive and Historic Up: Buildings, Grounds, Library and Previous: Disposal of the Schmidt . Mark Bailey, Apostolos Christou and David Asher have developed ideas for a new outdoor exhibit in the Observatory grounds, called `The Human Orrery'. ... The position of the proposed new Library, Archive and Historic Scientific Instruments building is shown in outline. ... Next: Library, Archive and Historic Up: Buildings, Grounds, Library and Previous: Disposal of the Schmidt M.E. Bailey . ...

Next: State of the problem Up: Old neutron star distribution Previous: Abstract . Recent results from BATSE device onboard GRO observatory have shown full isotropy of gamma-ray bursts locations upon the sky and their unhomogeneous space density ) (Meegan et al. 1992), where is the angle between the source and the galactic center, b is the galactic latitude and signifies averaging upon the whole sample. ...

... General information . ... Staff . Research staff . ... Research . ... Rossi Lectures . Workshops & courses . ... Historical highlights . Historical research . ... The lectures will illustrate techniques to solve of a number of statistical problems commonly encountered in astrophysics: . ... 2-3: Introduction to Astrostatistics [general lecture] . ... 3-4: Regression [lecture and tutorial] . ... 3-4: Common statistical mistakes in the astronomical literature [general lecture] . ... Day 1 . ...

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Moon . ... Space Flight . ... Science Fiction . UFOs and Fringe Science . Monthly Sky Notes . ... NASA's Cassini spacecraft obtained this image of Saturn's moon Helene on June 18, 2011. Image credit: NASA/JPL-Caltech/Space Science Institute) . ... Your email address will not be published. ... Email * . ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

... The Solar TErrestrial RElations Observatory (STEREO) provides high cadence and high resolution images of the structure and morphology of coronal mass ejections (CMEs) in the inner heliosphere. ... MAGIC observations of MWC 656, the only known Be/BH system . ... The system has been associated with a gamma-ray flaring event detected by the AGILE satellite in July 2010. Aims: Our aim is to evaluate if the MWC 656 gamma-ray emission extends to very high energy (VHE > 100 GeV) gamma rays. ...

... The close X-ray binary with relativisic jest, contained probably a black hole, Cygnus X-3 has been detected in first time in Gamma-rays at enegries higher 100 МeV (AGILE, Tavani et al., ... Koljonen K.I.I.; Hannikainen D.C.; McCollough M.L.; Pooley G.G.; Trushkin S.A. The hardness-intensity diagram of Cygnus X-3: revisiting the radio/X-ray states 2010, MNRAS, 406, 307-319. ... X-ray image of Cygnus X-3 (Chandra) . ... Light curves Cygnus X-3 in gamma-rays (AGILE) and in radio cm-bands (Ryle tel., ...

Russian version of HP . ... StarCalc is the fastest professional astronomy planetarium & star mapping program for Windows 9x/ME/NT/2000/XP (StarCalc version for PocketPC computers you can found here ). ... Extensibility : This program is based on common "Plugin StarCalc interface to catalogs and object groups", which allows program to add new modules as Plugins. ... Welcome to the Pocket StarCalc Home Page: . ... Some bugfixes in eclipses" and line" plugins - see the new versions in downloads page. ...