. XMM-Newton Science Analysis System . omsource (omsource-1.15.5) [xmmsas_20070708_1801-7.1.0] . Meta Index / Home Page / Fast Mode Photometry Window / Summary of Widgets . If this button is clicked then the user will be able to select circular regions on the image will be used to determine a mean background counts per pixel value, which will be used for the background subtraction. XMM-Newton SOC/SSC -- 2007-07-09

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• Background Regions window
• Background regions
• Algorithm

... The close proximity of the Magellanic Clouds allows us to probe the nature of these star forming regions at small spatial scales. ... We present the spatial analysis, via aperture/annulus photometry, of 16 Large Magellanic Cloud (LMC) and 16 Small Magellanic Cloud (SMC) H II region complexes using the Spitzer Space Telescope's IRAC (3.6, 4.5, 8 ЮМm) and MIPS (24, 70, 160 ЮМm) bands. ... The IRAC, MIPS, UV, and HЮБ spatial analysis are compared with the spatial analysis of the TIR. ...

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... 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 . ...

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• Region Markers
• *imcnts* - Find counts in an extended region, after removing an embedded point
• Spatial Region Boundaries

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. ...

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• moment
• Index
• Radio Astronomy

... We report on our ongoing project ``Infrared Study of HII Regions Associated with Small Clouds.' ... These IR data, combined with optical imaging (which will be obtained from the IAC-80 telescope), IRAS survey maps, and existing CO observations of the associated clouds, will allow us to undertake a detailed investigation of the gas-to-dust mass ratio, initial mass function and the star-formation efficiency in these complexes. ... CHECKPSF: check the PSF (Point Spread Function) model, . ...

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• A Technique for Determining Proper Motions from Schmidt Plate Scans at ST ScI
• An IRAF-Independent Interface for Spatial-Region Descriptors
• A New PROS Task for Calculating HRI Source Intensities or Upper Limits

Four spacecraft: INTERBALL Tail probe (IB_TAIL), CLUSTER II (ESA/NASA), POLAR(NASA/ISAS), GEOTAIL (NASA) are considered. ... four spacecraft . ... INTERBALL . ... IB_TAIL) . ... NASA) . GEOTAIL . NASA, ISAS) . The four spacecraft . ... Modified 28 August 2000 . ... INTERBALL mission | ...

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• Campaign 2, September 2000 (continue)
• Campaign 2, August 2000 (continue)
• Campaign 2, July 2000 (continue)

... Many of these radi HII regions lie beyond the range of optical detection, at distances exceeding several kpc; they thus provide a comprehensive coverage of the southern HII regions in the Galaxy over the longitude range 210 to 360^o and consistute a vital data base for the study of galactic structure. ... C Caswell (1972) . ... In column 16, "V", or a specific nebula name, denotes the presence of a visible optical counterpart, and "A" indicates the absence of an optical counterpart. ...

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• Survey of Galactic region
• Radio survey for new compact HII regions
• Order Merging

... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Planetary Nebulae and HII regions in the Elliptical Galaxy NGC 5128 . ... NGC 5128 is the closest example of a giant early type (elliptical or S0) galaxy. Although often dubbed as a peculiar elliptical galaxy since it has a dust lane with recent star formation and an active galactic nucleus, the majority of early type galaxies have similar structures as revealed by recent surveys. ...

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• Synthetic Star Forming Region HRDs
• ESO - Thesis Topic: Probing the central regions of galaxies
• ESO - A number of OmegaCAM filters show vignetting in their central regions.

MAGION 5 is subsatellite of the Auroral Probe, one of the satellites of the INTERBALL program. ... Click hear for the 1999 flight situation analysis during operations scheduling . ... The satellites motion calculation during the flight situation analysis is based on the orbital elements determined by the Institute of Atmospheric Czech Academy of Sciences. ... SSC GSFC NASA Satellite Situation Centre of the NASA Goddard Space Flight Centre . ... Space Research Institute (IKI) . ... IKI RAN | ...

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• Campaign 2, April 1998 (continue)
• Campaign 2, February 1998 (continue)
• Campaign 2, June 1998 (continue)

Define region . ... Area/perimeter . Define a region of interest on a graph or graphs. Select the region, there are 5. ... Inside polygon . Points inside a closed, non-intersecting polygon are considered inside the region. ... In the polygonal region type, define the region by successive clicks with the left mouse button, use the right mouse button to register the polygon. ... Select the region to use. ... Click on Area or Perimeter and use the mouse to define the region. ...

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• Parameters of the starburst
• Galactic Gravitational Wave Background

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 . ...

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• SLITLESS (Oct97) --- ST_ECF --- SLITLESS (Oct97)
• stecf.slitless - a Slitless Spectroscopy Quick-look Tool
• ST-ECF Grism Spectrum Software for NICMOS Grism Data

This diagram illustrates two block boxes, one above the other, with rectangular clipping regions of different dimensions. ... Both axes depict increments of 5px. The clipping region of the first P box lies entirely within it, offset 5px from the top and left edges of the P box, and 10px from the right and bottom edges. ... The clipping region of the second P box resembles that of the first in style and position, except that the right edge is 5px to the right of the P box's right edge. ...

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• Background color examples
• Album: 2015/06 Muranovo, Moscow Region (Russia)
• Album: 2015/08 Tarkhany, Penza region (Russia)

Astronomy Picture of the Day . An X Class Flare Region on the Sun . ... 6.11.2007 . ... Credit Copyright: TRACE Project , NASA Explanation: Why does the Sun flare? Unpredictably, our Sun unleashes tremendous flares expelling hot gas into the Solar System that can affect satellites, astronauts, and power grids on Earth. This close up of an active region on the Sun that produced a powerful X-class flare was captured by the orbiting TRACE satellite . ... Publications with keywords: Sun . ...

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• Астронет > An X Class Flare Region on the Sun
• XWare > APOD

... V. Definitions Science Background Observ ations Results Summary Definitions W hat is a Maser? A maser is an optical amplifier that produces coherent microwaves due to stim ulated emissions. ... A megamaser is an extragalactic source with an unprecedented isotropic lum inosity of ~103L It is a m illion times more lum inous than nearby sources of masers. ... Research in this astronomical area has experience great growth due to interf erometric techniques. ...

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• http://www.naic.edu/~astro/School/Talks/large_pdf/handson_gbt2_2.pdf
• World Day at Arecibo - Examples and Highlights
• I-GALFA View of a Galactic Tangent Region

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... We discuss the diagnostic potential of high cadence ultraviolet spectral data when transient ionization is considered. ... The ionization fraction of the transition region ion O v and in particular the contribution function for the O v 1371 line are computed within the Atomic Data and Analysis Structure, which is a collection of fundamental and derived atomic data and codes which manipulate them. ...

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• Solar Active Region 10999 by Deirdre Kelleghan | International Year of
• SCL Sfit Commands
• Index of /highlights/2012/603/bp_mag/region_no_xray_response

... Samara State Aerospace University Staff Myasnikov Vladislav Valerevich . ... How to Use Geoinformation Technologies and Space Monitoring for Controlling the Agricultural Sector in Samara Region // Pattern Recognition and Image Analysis. ... Kuznetsov A.V. , Myasnikov V.V. Remote sensing data verification using model-oriented descriptors // 4th International Conference on Analysis of Images, Social Networks and Texts, AIST 2015;, , , , 2015, P. 96-101 . ... Pattern Recognition and Image Analysis. ...

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• The scientific journal 'Computer Optics' is planned to be issued in English
• Research and Education Center of Computer Science (REC Cs-208)
• Samara region

... Research objects and scientific purposes . Space scientific program includes development and launch of two supersmall spacecrafts "Universitetskiy" and "Kompas-2" intended for monitoring of radiation conditions near the Earth. ... All the studies conducted in the near-Earth space are characterised by strong radiation fields. ... The circular polar orbits, which cover all the near-Earth space, are the most favorable for comprehensive studies of the radiation conditions near the Earth. ...

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... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2007 November 6 . An X Class Flare Region on the Sun . Credit: TRACE Project , NASA . Explanation: Why does the Sun flare? ... This close up of an active region on the Sun that produced a powerful X-class flare was captured by the orbiting TRACE satellite . ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

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• APOD: 2008 September 24 - Active Region 1002 on an Unusually Quiet Sun
• APOD: 2004 July 26 - A Large Active Region Crosses the Sun
• APOD: 2008 March 12 - Star Forming Region LH 95

... Sun images . ... Sun flares . ... Active areas . September : 2015 . ... The following regions with sunspots can be now observed on the Sun's surface . Group number . ... Group length (in degrees) . ... Coordinates and other characteristics of active regions are issued for September 09, 2015 00:31 UT The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates and other characteristics of active regions are issued for September 09, 2015 00:31 UT . ...

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• Sunspots and active regions January 10, 2007
• Sunspots and active regions January 10, 2012
• Sunspots and active regions January 01, 2013

The 2dF QSO Redshift Survey (2QZ) . ... Before jumping into all the finer details of teh survey, a brief non-astronomer's guide to redshift surveys is available. ... The primary scientific aims of the QSO survey are: (1) to obtain the primordial fluctuation power spectrum out to COBE scales, (2) to determine the rate of QSO clustering evolution in the non-linear and linear regimes and hence obtain new limits on the value of and the bias parameter, (3) to apply a powerful geometric method to measure . ...

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• Dunk Proceedings - 2dF QSO Redshift Survey (Survey Regions)