True Color Image Gallery: Galactic SNR | Magellanic Cloud SNR . ... Description: large, diffuse, X-ray and radio brighter in northern half . Radio . ... Radio Images Page . ... Exposure uf . ... Exposure uf Exposure time of unfiltered event file . Exposure f Exposure time of filtered event file . ... Event 2 FITS File . ... AUX file . ... 0.3 - 10.0 . ... see fit detail page for more about the fit. see chandra spectrum page for region used. ... True Color Image . ... Radio Images . ...

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• Chandra Images for G006.4-00.1
• Chandra Images for G010.0-00.3
• Chandra Images for G006.4+04.9

... rgsregions defines and constructs the various RGS event-selection regions, and adds them to the source list (see rgssources ). ... Image regions and the background region refer to the plane of dispersion versus cross-dispersion ( image plane ) and select events based on their spatial coordinates. ... The order regions refer to the plane of dispersion versus calibrated pulse-height ( energy plane ) and select events from a specific astrophysical source within a particular reflection order. ...

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• Parameters
• The contour method of calculating source region shape

WFC3 Instrument Handbook for Cycle 24 . ... Wide Field Camera 3 Instrument Handbook for Cycle 24 > Appendix A: WFC3 Filter Throughputs > A.2 Throughputs and S/N Ratio Data . ... Note that the plots show the S/N as a function of source magnitude for exposure times as short as 0.1 s, although the minimum exposure time for the UVIS channel is actually 0.5 s. Wide Field Camera 3 Instrument Handbook for Cycle 24 > Appendix A: WFC3 Filter Throughputs > A.2 Throughputs and S/N Ratio Data . ...

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• Dust Emission from Evolved and Unevolved H II Regions in the Large Magellanic
• A Spitzer Space Telescope Far-Infrared Spectral Atlas of Compact Sources in the
• The Effects of Dust in Simple Environments: Large Magellanic Cloud H II Regions

... Acero+ astro-ph/1501.02003v1.pdf Fermi Large Area Telescope Third Source Catalog Acero+, 2015) Version by Trushkin from FITS file with five columns =========================================================================== We present the third Fermi Large Area Telescope source catalog (3FGL) of sources in the 100 MeV-300 GeV range. ... From source counts of Galactic sources we estimate the contribution of unresolved sources to the Galactic diffuse emission is 3% at 1 GeV. ...

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• THE MOLONGLO RADIO SOURCE CATALOGUE 4: MC4
• Primary Catalog
• IRAS IDS

... LABORATORY OF RADIO ASTRONOMICAL OBSERVATIONS . Radio sources identification is one of the most important tasks of the current radio astrophysics. ... Optical idetification. ... Optical identifications of subsample of steep spectra radio sources from RC catalog using 6m SAO telescope of SAO RAS: optical observations. ... Astronomy Reports. ... Identification of radio sources with data of various radio catalogs allows one to construct continual spectrum of the object and its radio structure. ...

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• Results scientific researchs 20
• Writing Larger Programs

... The actual cross-correlations were done as follows: north of WGACAT was correlated with the GB6 catalog with a correlation radius of one arc minute. ... We therefore cross-correlated WGACAT with the GB6 and PMN radio catalogs with a 1.5 arcmin radius. ... As a result of this experiment, we then added to the WGACAT/PMN candidate list the 29 unclassified sources obtained from the 1.5 arcmin correlation and having PSPC offsets arcmin, ratio between X-ray/radio offset and positional error , and . ...

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• The Very Large Telescope Project
• N44 in the Large Magellanic Cloud (Central Region) | ESO
• The Browne & March? Effect

... Flux density at 1 GHz (/Jy): 210 . ... Optical: Large filamentary loop, brightest to the NE, not well defined to the S or W. X-ray: Shell in soft X-rays. ... DRAO at 408 MHz (3'.3?6'.7) for spectral index study, plus X-ray and optical. ADS . ... Optical spectroscopy of nearside filaments. ... 1992, ApJ, 400, 214. ... IRAS observations. ... Leahy et al. ... Far-UV spectroscopy, H and other optical observations of NE region. ... Suzaku observations of NE. ... Suzaku observations of N. ADS . ...

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• NVSS Source Search (10-July-1998) Help for NVSS Source Catalog Search
• Astrophysics Group 7C
• NVSS Source Search ($Revision: 1.6 $ - running v2.17)

... Up: Science Data Pipelines . ... We designed and developed a package which simulates extragalactic point source data within a given field of view and SIRTF band. ... The simulator is modular and extensible to enable multi-wavelength simulations, has been optimized by utilizing parallel processing capabilities, and will be used to test pipeline software. ... The extragalactic simulator is capable of generating large numbers of galaxies within a given patch of sky for SIRTF pipeline testing. ...

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• A New PROS Task for Calculating HRI Source Intensities or Upper Limits
• ADASS 2003 Conference Proceedings
• The Sliding-Cell Detection Program for Chandra X-ray Data

... Files . ... File List . File Members . images . Regions . ... 00001 //# WCUnion.h: Make the union of 2 or more image regions 00002 //# Copyright (C) 1998 00003 //# Associated Universities, Inc. ... 00053 // It makes it possible to take the union of 2 or more image regions. ... 00108 WCUnion ( Bool takeOver, const PtrBlock<const WCRegion*> & regions); 00109 00110 // Copy constructor (copy semantics). ... Generated on Fri Sep 3 2010 13:07:04 for casacore by 1.7.1 ...

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• Large Scale Structure of Orion
• Astronomical Acronymns
• casacore: images/Regions/WCLELMask.h Source File

Venus in visible light (violet filter) 50k gif ; 25k jpg . ... image from Pioneer Venus 15k jpg ; 28k jpg ( caption ) . ... 7 pancake volcanoes, alpha region 227k gif ; 327k jpg . ... Lada Regio, 47 deg S, 25 Long, showing mountains and craters 121k gif ; 321k jpg . ... Gula Mons and Cunitz crater, flat image of gulacun.gif 250k gif ; 178k jpg . ... Crater Farm, Lavinia Region, small 107k gif ; 147k jpg . ... Central Ovida region, 1 deg s by 83 deg 191k gif ; 531k jpg . ... Pictures .. ... Venus .. ...

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• Planetary Picture List
• TCV [Oulu]
• The Earth's Magnetosphere

... list of all files with drifts 15apr03 to 27may03 baseband mixer chassis was tested on the bench and the tubular lowpass filters (k&E) (100 mhz) after the mixer were causing the problem. ... 10apr03 shows drift of sbc1B with the outputs of the IF2 switched sbc1B, sbc2b. The drift remains in sbc1B so the problem is after this switch (in the correlator). 14apr03 The cables leaving the attenuator box in the correlator were switched (sbc1b and sbc2b). ... At sample 4600 i retightened the switched cables....

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• http://www.naic.edu/~phil/hardware/cor/adjpwrBirdies.html
• pdev_birdies_25jun07
• Boundary Conditions etc.

... Another full Moon 300k jpg . Several of my own images including a large full moon mosaic and some lunar close-ups html . ... projection of the whole surface (from Clementine images) 330k jpg ; 1200k tiff . ... GOES satellite image of Earth showing Moon in same frame 92k gif . Moon's north pole from Galileo 132k gif . ... Three-filter color image of the Moon (Galileo) 57k jpg . False-color image of the Moon (Galileo) 123k jpg . ... False-color image of the Moon (Galileo) 53k jpg . ...

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• Open Source Convention
• APOD: 2006 July 29 - The Swarm
• APOD: 2005 January 28 - The Swarm

... We compare our results with the GRANAT X-ray observations of the Galactic center (Churazov et al. ... It is instructive to compare our results for the Galactic center starburst with what might be expected for a continuous star formation, with the average rate characteristic for the whole Galaxy. For this continuous star formation model, we would expect to observe in the region of around the Galactic center about 10% of the total number of X-ray sources in the Galaxy. ...

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• Spatial distribution of X-ray binaries at the Galactic center after the
• Be/X-ray binaries and candidates
• X-ray Galactic Sources and Binary Radiopulsars as Probes of the Initial Mass

... The Center of the Circinus Galaxy in X Rays . ... Are black holes the cause of X-rays that pour out from the center of the Circinus galaxy? ... A Radar Image of Venus . ... As a gorgeous full Moon rose above the eastern horizon on February 7, the Space Shuttle Atlantis streaked skyward towards an orbital rendezvous with the International Space Station. ... Last month, the crew of the Space Shuttle Endeavor delivered new Logistics Modules and installed the new Canadarm2 on the growing outpost. ...

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... One striking feature is a small source of almost pure H 2 line emission, which is located near one of the compact sources in Orion reported by O'Dell and collaborators (HST-18 = 203-504). ... H-H objects, Proplyds, Orion Bar, H 2 . ... We obtained a series of images across the bright rim of the Orion Bar near the peaks of mm-wave molecular line emission with NICMOS cameras 1-3 (NIC1, NIC2, NIC3) in several filters on 1998 February 18. ... The suggestion of an H-H object does not seem compelling. ...

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• HST/NICMOS Observations of the Interacting System Arp 299
• Photometric Performance of NICMOS
• A Color Analysis of NICMOS Parallel Observations

... For us to see them from such great distances, quasars must be producing enormous energy -- they are about 1000 times brighter than an average galaxy! ... One of their choices for the energy source of quasars was a black hole. ... On the one hand, it may seem difficult to think that mere friction between bits of matter could account for the energy of a quasar, but, on the other hand, gravity is unimaginably strong near a black hole. ... How does matter actually rush towards the black hole? ...

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• ASP: Black Holes: An Introductory Resource List
• ASP: Astronomical Pseudo-Science: A Skeptic's Resource List
• ASP: Astronomical Pseudo-science: A Skeptic's Resource List

... large mosaic of Viking orbiter images 2500k jpg . Pathfinder images html . ... MGS images from the Mar 13 issue of Science html . True color image Mars by HST WFPC2 Feb 95 34k jpg ; 158k gif ; ( caption ) . ... Slightly chopped and zoomed image of the "grand canal" (Valles Marineris) of mars 157k gif ; 368k gif . Viking image of Mars showing a valley and what appears to be a delta 697k gif . ... MSSS Viking Image Archive html . ... Mars Atlas and Viking Orbiter image finder html . ...

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• BD_disks (Abstract)
• The BD+40 region (Abstract)
• Corona & solar wind

... The VSOP Survey Continuum Source List . The radio sample for the VSOP continuum survey was defined to include all extragalactic radio sources with: . a total flux density at 5 GHz, S>=1.0 Jy . ... The sample also included all sources in the sky with a 5 GHz flux density S>5 Jy, regardless of spectral index and galactic latitude. ... The source would then be included in the VSOP sample (three of the sources were found with a flux density above 1 Jy and added to the sample). ...

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• source comment

... Solar flare activity is produced by the processes of accumulation and release of energy in an active region. ... In the framework of study of solar active regions, producing powerful flares the researchers from the RATAN-600 radio telescope have detected sources with features in the form of a sharp drop in the intensity of polarized radiation in various parts of the recorded frequency range (2-16GHz), sometimes changing the sign of polarization. ...

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• Study of radio spectra and variability of GPS sources
• RCJ0311+0507
• Solar system sector, archive 2001

This course will deal with the issues of alternative energy sources and sustainable energy sources. ... We will therefore make heavy use of network resources (e.g. the Internet) for providing documentation and guides to various forms of sustainable energy technology. ... All assignments will be posted there as well. ... The course will start out covering solar energy but will then move to other alternative energy sources such as, Wind, Tides, Hydroelectric, Ocean Currents, and Geothermal. ...

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• Physics 410/510 Observational Cosmology
• Plate Boundaries: Translational Zone
• The Galaxy Gallery: Messier Objects