... Posts tagged ?spatial statistics? ... As a part of exploring spatial distribution of particles/objects, not to approximate via Poisson process or Gaussian process (parametric), nor to impose hypotheses such as homogenous, isotropic, or uniform, various nonparametric methods somewhat dragged my attention for data exploration and preliminary analysis. ... I decide to discuss Kalman Filter a while ago for the slog after finding out that this popular methodology is rather underrepresented in astronomy. ...

. XMM-Newton Science Analysis System . statistics (statistics-1.2) [xmmsas_20080701_1801-8.0.0] . Meta Index / Home Page . None. XMM-Newton SOC/SSC -- 2008-07-02

Next: Analysis in the Up: MIDAS utilities for Previous: Fourier analysis . For the detection of smooth signals, e.g. sinusoids, use either SCARGLE/TSA or AOV/TSA with bins. ... SCARGLE/TSA -- . Scargle sine model: This command computes Scargle's (1982) periodogram for unevenly spaced observations x . ... In this way, the command can be used to perform a CLEAN-like analysis manually by removing individual oscillations one by one in the time domain (see Roberts et al. ... AOV/TSA -- . ...

... astro-ph . ... Statistical Characterization of the Chandra Source Catalog . ... The first release of the Chandra Source Catalog (CSC) contains ~95,000 X-ray sources in a total area of ~0.75% of the entire sky, using data from ~3,900 separate ACIS observations of a multitude of different types of X-ray sources. ... In addition to these traditional catalog elements, for each X-ray source the CSC includes an extensive set of file-based data products that can be manipulated interactively. ...

... Science . ... Science Users Information > Science Publications > Science Announcements > ESO Period 98 Proposal Submission Statistics . 10 Apr 2016 jump to navigation jump to content . ... Observing Facilities . ... Phase 1 Proposals . ... ESO Data . ... The Call for Proposals for ESO Period 98 (1 October 2016 тАУ 31 March 2017) closed on 31 March 2016. A total of 901 proposals were received, a significant drop with respect to Period 97 and returning to the levels of Periods 91тАУ94. ...

2014 May version . ... Green D. A., 2014 , Bulletin of the Astronomical Society of India, 42 , 47-58. ( .pdf , or arXiv.org:1409.0637 ) If you make use of the detailed version of the catalogue, then plaese also cite: . Green D. A., 2014, `A Catalogue of Galactic Supernova Remnants (2014 May version)' , Cavendish Laboratory, Cambridge, United Kingdom (available at "http://www.mrao.cam.ac.uk/surveys/snrs/" ). ... Copyright D. A. Green 2014. 25872nd access to this version of the catalogue. ...

Main Sections LabIR main page . Instrument page . ... LabIR staff . ... To date, a total of 1043 photometric observations have been collected with FIRPO. The statistics include 256, 279, 412 and 78 measurements in the main filters J1, H2, K3 and L4 respectively. ... A full listing of the measurements, ordered by date and with the filters and program name indicated, is available. Also available is a summary of the FIRPO runs, with details of the dates, telescopes and observers. ...

SPACETELESCOPESCIENCE INSTITUTE Activities: 8 September н 5 October 1994 Target Acquisition Statistics: Pointing Statistics (Cycle 4 to date): FOS blind pointings within 1 arcsec: Blueside: 63% Redside: 55% Total: 58% ACQ Type Success Fail Total Comments Binary 7 4 11 2 faint, variable 1 poor coord. 1 SIB error Peakup 10 0 10 Total 17 4 21 TIPS: 6 October 1994 FOS Keyes SPACETELESCOPESCIENCE INSTITUTE Science Activities: 17 GO proposals were scheduled in the past month. ...

Data files used in analysis (supported by the IAA except other stated) . ... Database name-Experiment code cross-reference table (based on the IVS master files, updated with every new session) . ... Observations Statistics (updated near-daily) . ... Starting from June 2004 IAA AC regularly submits NGS cards to the IVS with a delay of several hours after appearing of the database in the IVS archive. ... Session tropospheric paremeters are regularly submitted to the IVS troposphere combining center ...

Next: Listing Image Values Up: Image Analysis Previous: Image Analysis . Task histo is a fairly commonly used task, giving a number of image statistics and a simple histogram. Apart from the input image (keyword in ), it can take a region of interest ( region ), a range to determine the histogram over ( range ), and the number of bins in the histogram ( nbins ). ... region . ... If you do not like histo , or you would like a PGPLOT plot of the histogram, you could use the task imhist instead. ...

... The Einstein On-Line Service (EOLS) is a simple menu-driven system which provides an intuitive method of querying over one hundred database catalogs. In addition, the EOLS contains over 30 CD-ROMs of images from the Einstein X-ray Observatory which are available for downloading. The EOLS provides all of our databases to the NASA Astrophysics Data System (ADS) and our documents which describe each table are written in the ADS format. ... The EOLS provides three options for data retrieval. ...

Central Astronomical Observatory at Pulkovo of Russian Academy of Sciences PUL Analysis Center Pulkovo IVS Analysis Center (PUL) 2009 Annual Rep ort Zinovy Malkin, Natalia Miller, Elena Popova Abstract This report briefly presents the PUL IVS Analysis Center activities during 2009 and plans for the coming year. The main topics of the investigations of PUL staff in that period were ICRF related studies, computation and analysis of EOP series, and VLBI2010 related issues. ...

Peremennye Zvezdy", . ... Period . ... Comment . ... Data . ... see Comments) . ... NSVS 2030690 NSVS 2058214 . ... ASAS 074343-2050.3 . ... Comments: . ... The variability of GSC 4064-00179 = NSVS 2030690 = NSVS 2058214 was discovered by Khruslov (2005) from ROTSE-I/NSVS data (Wozniak et al. 2004; also see http://skydot.lanl.gov/nsvs). ... I re-analysed the ASAS-3 and ROTSE-I/NSVS data (Wozniak et al. 2004) using the period-search software developed by Dr. V.P. Goranskij for Windows environment. ...

... Have you wondered which search method is best suited to discover supernovae? Supernova hunter Michael Schwartz, from Oregon, USA, has made some number crunching on recent SN discoveries. Some of his statistics and comments are in these and following pages. ... The following are some simple statistics describing three different type of search: . ... For each method we show two statistics. They show the number of supernovae discovered by galaxy magnitude and by supernovae magnitude. ...

... Part B: Theory of Wavelet Transform . ... Part G: Using the Wavelet for analysis of internal Structure of the astrophysical objects + N-Dimensions . ... Comment: Parts of light curves of variable white dwarfs ate investigated by means of a wavelet analysis. ... Comment: The quasi-periodic nature of chromospheric activity variations is not completely compatible with the standard Fourier analysis, so a wavelet analysis is applied to study the nature of regularities in the data. ... 1992) . ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

User catalogs allow you enter positions for your objects into a file, to save time during an observing run. ... Before diving into the details, here is an example: # default coordinate system and object # (these are the standard defaults, so if you like them you can omit this line) CSys=FK5; Date =2000; RotType= Object ; RotAng=0 # some random objects # Name Pos1 (e.g. RA) Pos2 (e.g. Dec) Options in keyword-value format NGC6543 rot 90 ... Object Data . Defaults . Catalog Options . ...

... Authors: Spyros Basilakos (Imperial College London) . ... Title: Populating a cluster of galaxies - I. Results at z=0 . ... Title: The Merger Rate to Redshift One from Kinematic Pairs: Caltech Faint Galaxy Redshift Survey XI . ... Title: Multi-wavelength observations of an evolved galaxy group: An endpoint of galaxy merging? ... 23 matches for the search pattern galaxy merging . The URL for this page is: http://xxx.itep.ru/find/astro-ph/1/galaxy+merging/0/1/0/past,all/0/0 www-admin@xxx.lanl.gov ...

... Natalya V. Raguzova and Sergei B. Popov . ... We present a compilative catalogue of Be/X-ray binaries and candidates in the Galaxy and in the Large and Small Magellanic Clouds. This catalogue contains 160 sources and provides information on names and spectral types of optical components, distances, on spin characteristics of neutron stars, and on orbital and X-ray properties of binary systems. ... Be/X-Ray Binaries and candidates in the Galaxy . Galactic sources: comments to the Table 1 . ...

... Tonight's Sky . ... Observing . ... Sky this Month . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Observing Podcasts . ... Astronomy for Kids . ... Watch the LIGO announcement live . ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....