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. ...

... This section will deal with obtaining photons within specified regions of an image. Available regions are: Annulus Box Circle Ellipse Field -- entire field Irregular region based on intensity of map... i.e. region defined by contour levels. ... The imcnts task in the xray-spatial package sums the source and background counts in specified regions, and subtracts one from the other properly normalized. ... imcnts* - Find counts in an extended region, after removing an embedded point source . ...

... Previous: Substepping and its Application to HST Imaging . ... This is a preliminary report on an application of the co-addition technique based upon the Richardson-Lucy algorithm. The combination of high signal-to-noise ground-based images obtained with the ESO NTT using SUSI with high angular resolution HST FOC f/96 images gives new insights on the properties of galaxy cores and their potential time variability. Cores of galaxies are one of the main thrusts of present extragalactic research. ...

Astronomy Picture of the Day . Colors of Mercury . ... 1.03.2013 . ... Washington Explanation: The colors of the solar system's innermost planet are enhanced in this tantalizing view , based on global image data from the Mercury-orbiting MESSENGER spacecraft. Human eyes would not discern the clear color differences but they are real none the less, indicating distinct chemical, mineralogical, and physical regions across the cratered surface. ... Publications with keywords: Mercury . ...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

My main research interests are: . ... The method showed that the star formation in the external disc was quenched about 200 Myr ago, because of the gas removal due to the ram pressure (Pappalardo et al. ... Molecular gas and dust in spiral discs. ... Dust removal in spiral discs. ... Starting from this consideration I am at present analyzing all the spirals discs in the HeVICS sample, to find evidences of dust removed or strongly perturbed by environments, both ram pressure and/or tidal interactions. ...

This file is for people who wish to build TUI for MacOS X from source. These instructions work on MacOS X 10.5 and 10.4 but not earlier versions. Note: if you want to build an X11-based TUI for MacOS X, see these instructions instead. ... To build the TUI Mac Application. ... If all the python additions used by TUI are from binary installers listed as compatible with an earlier version of the operating system, then your application should also run on that earlier version. ...

... Basic Research results General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases Publication of data Possibilities of observing the structure and dynamics of microwave activity SSRT - Research results . ...

... Version: $Id: html-design.html,v 1.15 1994/11/26 19:53:43 connolly Exp $ . ... The HTML 2.0 Specification Review materials includes complete information on the HTML Working group of the IETF, the discussion of the HTML 2.0 specification, mailing list archive, and other supporting materials. ... JHU/APL's WWW HTML Developer's JumpStation - Page 1 . ... Gentle Introduction to SGML from the TEI guidelines. www-talk . ... There is also a hypertext archive. ... IETF Working group for HTML. www-html . ...

... Shevchenko Vladislav Vladimirovich . ... Position: Head of Department of Lunar and Planetary Research, Sternberg State Astronomical Institute, Moscow University, Doctor of Physics and Mathematics. ... L. Johnson Space Center - Lunar and Planetary Institute. ... Sternberg State Astronomical Institute, Moscow University, Universitetsky 13, Moscow, 119899 , Russia, . ... V.I.Chikmachev, S.G.Pugacheva and V.V.Shevchenko, Sternberg State Astronomical Institute, Moscow University, Moscow, chik@sai.msu.ru ...

Application of IVOA software tools for radio sources investigation Zhelenkova O., Kopylov A., Chernenkov V. The interrelationship between the objects of astronomical catalogs in the different ranges of electromagnetic spectrum and their association into the real astrophysical source has obvious scientific interest. ... We used NVSS as the reference coordinate catalog. ... For 60% of radio sources identified with the objects of the radio catalogs we discovered optical candidates in SDSS survey. ...

This module provides the ability to set environment variables based upon attributes of the request. ... The mod_setenvif module allows you to set environment variables according to whether different aspects of the request match regular expressions you specify. ... BrowserMatch . ... Syntax: BrowserMatch regex env-variable [= value ] [ env-variable [= value ]] .. ... Module: mod_setenvif . ... The BrowserMatch directive defines environment variables based on the User-Agent HTTP request header field. ...

Towards celestial sources above 1 THz with a heterodyne receiver based on a hot-electron bolometer mixer Sergey Ryabchun, Ivan Tretyakov, Matvey Finkel, Natalia Kaurova, Boris Voronov and Gregory Gol'tsman HOT-ELECTRON BOLOMETER (HEB) MIXER Scient ific and Educatio nal Radiophysics Center Mo scow State Pedago gical University Mo scow, Russia FIRST GROUND-BASED OBSERVATION WITH HEB MIXERS BEYOND 1 THz Submillimeter Telescope ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The white dashed line shows the region studied in this paper, with a radius of 1.5 centered on the massive star system HD 206267 (O6.5V), which is the main ionizing source of the region. ... We demonstrate how the survey can be used to (1) reliably select classical T Tauri star candidates and (2) constrain the mass accretion rates with an estimated relative uncertainty of 0.6 dex. ...

IDENTIFICATION OF INTEGRAL SOURCES WITH ASTRONOMICAL ARCHIVAL PLATES (1,2) (1,2) RenИ Hudec (1) , Filip Munz , Petr KubАnek( 1,2) Astronomical Institute, Academy of Sciences of the Czech Republic, CZ-251 65 Ond ejov, Czech Republic E-mail:rhudec@asu.cas.cz (2) INTEGRAL ISDC, Versoix, Switzerland ABSTRACT The ESA INTEGRAL satellite (International Gamma Ray Laboratory) launched in October 2002 continues to deliver valuable data about the gamma-ray sky. ... LEIDEN/JOHANNESBURG F.A. PLATES 8. ...

The perturbation method is based on the small-parameter expansion of an unknown solution of the light scattering problem in a vicinity of the exact solution. ... The only probably exclusion is the case of anisotropic particles for which the rigid solution is either impossible or too complicated. For such problems the perturbation method can give information of the first approximation, which is important for understanding of the basic principles of influences of the material anisotropy. ...

... This implies that the scientific output be much larger than that from modern ground based observations in the same scientific field. ... In order to obtain a full picture of the variable structure of such objects with the very high angular resolution it is necessary to build in future multi-element space systems similar to ground arrays. ... 30,000 km) for objects within = ? ... structure and motion of extragalactic sources as a result of their lensing by extragalactic objects . ...

... core . ... 94 љ unsigned int getNrOfStars () const { return nr_of_stars; } . ... 97 љ virtual void updateHipIndex ( HipIndexStruct hipIndex[]) const {Q_UNUSED(hipIndex);} . ... 100 љ virtual void searchAround ( const StelCore * core, int index, const Vec3d &v, double cosLimFov, . ... 142 љ ZoneArray ( const QString& fname , QFile* file, int level , int mag_min , int mag_range , int mag_steps ); . ... 190 љ void searchAround ( const StelCore * core, int index, const Vec3d &v, double cosLimFov, . ...

... 1993: . ... Based on the results of spectrophotometric observations with a high signal-to-noise ratio of 15 blue compact galaxies with low abundances of elements heavier than helium, the origin of nitrogen in these objects was investigated. ... Based on the high-accuracy spectrophotometric observations of 10 blue compact galaxies with a low abundance of elements, the most precise value of the mass fraction of helium Y(p) was obtained. ... Archive . ...

Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... April . ... April, 2013 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...