... A similar level of effort is anticipated for HDF-S. We are maintaining a `clearinghouse' for supporting and follow-up observations of the HDF-S. Test observations of the HDF-S field were obtained in October, 1997. ... Simultaneous, parallel observations were made with the three HST instruments STIS, WFPC2 and NICMOS of separate, neighboring fields. ... Additional flanking field observations were made surrounding the deep STIS, WFPC2 and NICMOS fields. ... The red field is the main HDF-S WFPC2 field....

... region (region-6.2.2) [xmmsas_20030110_1802-5.4.1] . ... The region task will automatically determine the optimal source and background extraction regions for a detected source in an XMM observation. ... The regions are defined in sky coordinates. region will attempt to maximise the area of the extraction region for each source, whilst ensuring that the extraction regions of neighbouring sources do not overlap, and that the background extraction region for a given source excludes neighbouring...

CHIANTI - an atomic database for emission lines. ... K.P.Dere, E.Landi, H.E.Mason, B.C.Monsignori-Fossi, P.R.Young, 1997, A , 125, 149 . Article: Available from ADS . The Arcetri Spectral Code for thin plasmas . E.Landi M.Landini 1998, A , 133, 1 . ... E.Landi, M.Landini K.P.Dere, P.R.Young, H.E.Mason, 1999, A , 135, 339 . ... K.P.Dere, E.Landi, P.R.Young, G.Del Zanna, 2001, ApJS, 134, 331 . ... G.Del Zanna, B.J.I.Bromage, E.Landi, M.Landini, 2001, A , 379, 708 . ...

The VLTI Calibrator Selector Tool is a tool intended to assist in the selection of suitable interferometric calibrators for VLTI observations with MIDI and AMBER. It uses a model of the VLTI and its instruments to assess the fringe visibility, given the observed bandpass, the geometry, spectrum, and coordinates of the target and the time at which the observations are to be made. ... The tool offers an HTML/Java based interface and consists of two pages. ... The quality flag depends on LDD_chi2. ...

Each file type known to SAOtng can have user-defined analysis commands associated with it. ... A help line describing the file types . ... For example, the default analysis file currently contains the following: # # Analysis command descriptions: # help # file templates # file types # analysis command line counts -- number of events in region (no background) *.qp *.imh QPOE IMH uiraf '${xraybin}'/x_xspatial.e imcnts source='${filename}' region=$sregion bkgd=0 table=NONE | ...

... This class is designed to be an up to date summary of the last 10-20 years of observations relevant to Cosmology. ... Theory today is bombarded by a vast array of observational data but there remains no clear and preferred model for the origin and evolution of structure in the Universe. ... The inflationary paradigm and the nature of the Dark Matter - Inflation solves a lot of problems that are inherent in the standard Big Bang Model. ... Kinds of Dark Matter and Observational Constraints . ...

Status of the RadioAstron project development . The engineering model of the Space Radio Telescope (SRT) was assembled in Lavochkin Association (LA) in the configuration consisting of 10-m parabolic radio astronomical antenna made of carbon-fiber, F ocal and Device cabins of the scientific payload and on-board and ground complex of high data rate up-down radio link (VIRK). ... Then,radio astronomical tests were conducted using real radio sources. ... Space Radio Telescope . ... Data Processing . ...

asncombine -- Process and combine images in one or two NICMOS associations asncombine association . ... set to yes to include error planes in co-added images error. background . ... This is useful to use different background subtractions for different images. fheader . set to yes in order to multiply the background by the value of keyword "factor" in the image header. ... Set to yes to use quadrants statistics save in the image header from previous runs of asncombine. regquad1 . ...

GENERAL DESCRIPTION OF DATABASE . It is a matter of common knoledge, that solar magnetic fields and, in particular, magnetic fields of sunspots, play important role in many solar events. In Pulkovo observatory the long-term data set of daily observations of magnetic fields of solar sunspots was accumulated, which contains great potential for further researches in solar physics. ... Second section includes files containing sum data about magnetic fields for every observational day. ...

... Apache HTTP Server Version 2.2 . ... What is Apache? ... May I use the Apache logo on my product or Web site? The Apache Software Foundation (ASF) is a 501(c)3 non-profit organization providing support for the Apache community of open-sourced software projects. ... The Apache HTTP Server -- sometimes called Apache httpd -- is a project of the Apache Software foundation aimed at creating a robust, commercial-grade, featureful, and freely-available source code implementation of an HTTP (Web) server. ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

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Orbital data : INTERBALL AZ GSE and GSM cartesian coordinates, GSE cartesian velocity (once per 10 minutes). ... Magnetic field data from IMAP experiment. Magnetic fileld absolute value and magnetic field index (the difference between absolute value and model value), status flag. ... Counts of H+ and O+ ions are accumulated during one spin period by detectors D6 (antisunward looking), D8 (spin plane), D10 (sunward looking) of TRICS2 subsystem (1.0-30 keV). ... TRICS1, TRICS2, TRICS3 subsystems: . ...

The FITS "World Coordinate System" (WCS) standard defines keywords and usage that provide for the description of astronomical coordinate systems in a FITS image header. ... I: "Representations of world coordinates in FITS" , Greisen, E.W. & Calabretta, M.R. (2002), Astronomy & Astrophysics , 395 , 1061-1075. ... This diagram illustrating Bonne's projection with conformal latitude +35 was produced by WCSLIB , a C implementation of the coordinate transformations defined in the FITS WCS papers. ...

... l - the mean galactic longitude; . ... mul - the median proper motion along galactic longitude of the stars of the OB-association, in units of 0.001 arcsec year -1 ; . dml - the estimation of mul dispersion in the OB-association, in 0.001 arcsec year -1 ; . mub - the median proper motion along galactic latitude of the stars of the OB-association, in units of 0.001 arcsec year -1 ; . dmb - the estimation of mub dispersion in the OB-association, in 0.001 arcsec year -1 ; . ...

. Pulkovo Database of Observations of Solar System Bodies . Available databases: . Observations of planets and their satellites . Observations of minor planets and comets . Info . General description of this database . Main Page .

... Description . Catalog . ... In the Catalog, we publish equatorial (ЮБ 2000 , ЮД 2000 ) and galactic (l,b) coordinates of cluster centers derived as the position of overdensity in 2MASS catalog (Koposov et al. ... Distances, color-excesses and ages are the mean-square values calculated using all available evaluations from different color-magnitude diagrams. ... There are individual pages for every cluster where all available plots and parameters are published. ... 2002). ...

. There are several different shells available for Unix; the most popular are described here. You can use any one of these shells if they are available on your system. And you can switch between the different shells once you have found out if they are available. Bourne shell (sh) . C shell (csh) . TC shell (tcsh) . Korn shell (ksh) . Bourne Again SHell (bash) .

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... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... This course will provide an overview of some of what is now known about the presence of magnetic fields in stars. ... Lectures: eight lecture hours total, one per week, normally Tuesdays at 11:30 in the Library at Armagh, and Mondays 12 - 1 at QUB in the seminar room. ... Lecture 3, measuring stellar magnetic fields . Lecture 4, stellar magnetic fields and associated phenomena . ... Chapter 1 (Lectures 1 - 4) . ...