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 . ...

... 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. ...

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 .. ...

Venus in visible light (violet filter) 17k jpg . Venus in visible light 73k gif . image from Pioneer Venus 15k jpg ; 28k jpg ( caption ) . ... UV image from HST WFPC2 (false color) 23k jpg ; 99k gif . ... New Magellan mosaics (5 hemispheres) 13500k tiff ; ( caption ) . ... 7 pancake volcanoes, alpha region 227k gif ; . Lada Regio, 47 deg S, 25 Long, showing mountains and craters 121k gif ; . ... False color IR image of Venus' lower clouds as seen by Galileo 37k jpg 112k gif ( caption ) . ...

... 1Haynes+ A catalogue at 5 GHz of 915 sources in the Galactic plane is presented. Sources with a peak beam brightness temperature of at least 0.2 K above the surrounding background are included, except in confused regions; a point source of 0.2 K corresconds to 0.26 Jy. ... It was assumed that Hydra A was a point source with a peak flux density of 13 Jy at 5 GHz; this is equivalent to a mean beam brightness temperature of 10.0 K for a beamwidth of 4.1x4.4'. ...

We present far-infrared spectra, ЮЛ = 52-93 ЮМm, obtained with the Spitzer Space Telescope in the spectral energy distribution mode of its Multiband Imaging Photometer for Spitzer instrument, of a selection of luminous compact far-infrared sources in the Small Magellanic Cloud (SMC). ... We compare these results with those obtained in the Large Magellanic Cloud (LMC). ...

... Next: The PROS Big Up: Software Systems Previous: Data Reduction Software . ... The srcinten task provides PROS users with a tool to compute count rates for point sources in the ROSAT High Resolution Imager (HRI). ... Corrected upper limits are cited at locations where the count rate falls below the source detection threshold. ... Srcinten is a new PROS task that computes and applies the above correction factors to the net counts in a user-specified aperture. ...

... Flux Sign Expo . ... Flux, mCrab . ... The map above is movable . The image is shown in significance with a squared root color map ranging from 0 to 25. ... Original shows mosaics with all data available. Flux map Error map Significance Exposure . Flux and error maps are in mCrab units. ... Exposure maps are in ksec. INTEGRAL/IBIS 9-year Galactic Hard X-Ray Survey* , A , Volume 545, id.A27 { NASA ADS | ... 7-year Galactic Bulge map , 2009 . 9-year Galactic survey , 2012 . ...

... Structure and evolution of galaxies . The Magellanic Stream and high-velocity clouds . ... DINGO the ASKAP deep H i survey . ... In this scenario, small dark-matter haloes are expected to form first and later merge and accrete onto larger haloes to form more massive galaxies like the Milky Way. ... Our Milky Way is surrounded by a vast population of gas clouds, called high-velocity clouds (HVCs), that are mainly detectable in H i emission. ... Compact high-velocity clouds around the Milky Way . ...

... 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. ...

... Energy . ... Solar Wind . ... Field . ... The Sun is our nearest star and the source of energy for life on Earth. ... For centuries astronomers wondered whether they were clouds floating in the Sun's atmosphere, but we now know that they really are huge regions of magnetic field, about as intense as the field at the poles of an iron magnet. For some reason the field slows down the flow of heat from the Sun's interior and keeps sunspots slightly cooler than their surroundings. ... Solar Eclipses . ...

... Particularly interesting sources include a bright open cluster of stars and several energetic star-forming regions. ... Amazingly detailed, this false-color x-ray image is centered on the galaxy Cygnus A. Recorded by the orbiting Chandra Observatory, Cygnus A is seen here as a spectacular high energy x-ray source. ... The big beautiful spiral galaxy is located just 10 million light-years away, behind a veil of foreground stars in the high and far-off constellation of Cepheus. ...

... X-ray: Non-thermal, limb-brightended to W, with central source. Point sources: Central X-ray source. ... 1997, PASJ, 49, L7. ASCA of NW. ADS . ... 1999, ApJ, 525, 357. ASCA and other observations. ... High energy gamma-ray detection. ... ATCA at 1.4 GHz (46"?36"), and ASCA observations. ... 2002, Natur, 416, 823. gamma-ray observations. ... ASCA observations. ... 2003, A&A, 400, 567. ... 2003, ApJ, 593, 377. ... Chandra, XMM-Newton and other X-ray observations of central source. ...

... 11 Yellow-Green (78% transmission): Contrasts well with the red and blue characteristics of surface features on Jupiter and Saturn. ... 82A Light Blue (73% transmission): Useful on the Moon, Mars, Jupiter, and Saturn, this subtle pale blue filter enhances areas of low contrast while avoiding significant reduction of overall image brightness. ... Meade Series 4000 Photo-Visual Color Filters may be ordered individually or in the following sets: . ... Meade Series 4000 Broadband Nebular Filters . ...

sedthumb_circl59_21MAY10.pdf.gz" ------------------- SEDs and thumbnails for sources from catalog: LO_FIN_circl59_21MAY10.dat 1.- Thumbnails show a 150 x 150 arcsec square region centered on each of the sources in LO_FIN_circl59_21MAY10.dat. ... Each SED corresponds to the central source in the thumbnails (source ID appears in the SED plot). ... FWHM of the central source. Other sources from catalog LO_FIN_circl59_21MAY10.dat falling within the square area are shown as white squares. ...

... 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. ...

... Data Reduction FAQ > A number of OmegaCAM filters show vignetting in their central regions. What are the causes for this and what are the dimensions of these features? ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... ESO HST Image Galleries . ... ESO Data Access Policy . ... ESO Science Newsletter . ... A number of OmegaCAM filters are not monolithic, but consist of four segments (each covering 8 detectors) that have a central cross-shaped support structure. ... Filter . ...

... In one situation, we can use light from quasars to probe the material between us and them because that light may pass through one or more galaxies or gas clouds on its way to us. The gas inside the galaxies or the intergalactic clouds acts then as a filter, absorbing selected wavelengths from the quasar light. ... Light from a quasar must pass through clouds of gas and even faint galaxies -- each leaving its imprint on the light -- before we receive it here on Earth. ... Gravitational lensing . ...

... Special Reports Giant space cloud may be powered by black holes 17:57 23 April 2007 NewScientist.com news service David Shiga An enormous cloud of roiling plasma in space may be drawing its energy from black holes, new observations suggest. Such clouds might be sources for the mysterious particles that occasionally crash into Earth's atmosphere at ultra - high speed. ... But higher energy particles in the cloud may be able to escape, he says. ...

Next: The Model Up: No Title Previous: Radiopulsars as Sources of . In this section, we study the evolution of stellar populations on a time-scale of 10 Myr for a starburst љ occurring under conditions similar to those in the Galactic Center (see Lipunov et al. (1995d)[ 126 ]). We estimate the expected number of X-ray transient љ sources (NS + MS star), super accreting BH, and BH + supergiant binaries, all as functions of time elapsed after the burst. ...