... De Breuck+ . WISH catalogue (sources in the region declination -25 to -9 degrees) . ... For each entry are listed: Name : In hhmm.s+ddmm format, A,B,C,D refer to the components of the multi-component source immediately preceding these component entries. ... This treshold is the fluxratio SI/S that is exceeded by less than 5% of the unresolved sources. b-M,b-m are in units of arcsec, PA in degrees from North, These parameters have not been deconvolved Nse : The local rms-noise level in mJy/beam. ...

We present observations of the spiral galaxy M33 with Spitzer at 24, 70, and 160 ЮМm. ... We compare the morphology of M33 at far-infrared wavelengths with other standard SF indicators such as HЮБ and radio continuum using a Fourier filtering technique to separate the diffuse emission components from compact sources. We find that the infrared emission at 24 and 70 ЮМm follows closely the structure of the ionized gas, indicating that it is heated largely by hot, ionizing stars. ... citations = 45 . ...

... region (region-7.9.3) [xmmsas_20080701_1801-8.0.0] . ... At times it may be desirable to filter the source list before calculating regions. An example of such a case is if the list contains many rows for the same source position (as do eg the standard XMM source-list products). There is usually not much point in constructing more than one region for the same source position, so in this case it would be desirable to filter out all the excess rows before constructing regions. ...

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

... 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. ...

... Miriad has a couple of tasks available for finding positions of sources (see also cgcurs in Chapter 17 ). ... It fits a 2-D parabola to the image intensities in a 3 by 3 pixel box centred on the brightest pixel in a specified region and reports the fitted location and intensity. ... Input image . ... The quality of your fit can improve significantly by selecting a snug region, and/or using the clip keyword to keep pixel values with little signal (e.g. sidelobes and noise) out of the fitting process....

... Posts tagged ?source matching? ... Without an optical afterglow, a galaxy within the 2 arc second error region of a GRB x-ray afterglow is identified as a host galaxy; however confusion can rise due to the facts that 1. the edge of a galaxy is diffused, 2. multiple sources could exist within 2 arc second error region, 3.the distance between the galaxy and the x-ray afterglow is measured by projection, and 4. lensing causes increase of brightness and position shifts. ... ArXiv] GRB host galaxies, Aug...

... Galaxy Evolution home . ... The origin and evolution of radio sources . Radio sources and their environments . ... We are investigating how this interaction effects galaxy evolution in general as well as the feedback effect of the radio source on its host galaxy and AGN. ... One direct observational manifestation of this interaction is the existence of extended regions of emission-line gas which show a clear spatial relationship to the radio source itself. ...

... Program of the Course of Radio Astronomy . Moscow State University , Physics Department , Astronomy Division , 4 th year, 60 hours in total) . ... Molecular maser emission. ... The emission of the interstellar neutral hydrogen. ... Pacholczyk, A. G. Radio Astrophysics, W. H. Freeman & Co., ... Frontiers of Astrophysics, Avrett, E. H., ed., Harvard University Press, Cambridge, Mass., ... Kaplan, S. A., Pikelner, S. B. The Interstellar Medium, Harvard University Press, Cambridge, Mass., ...

... Herschel Mission . ... Water along the outflow from a young nearby protostar: a Herschel view . ... Figure 1 shows a detailed view of the IRAS4A outflow through the comparison between the H 2 O emission and the emission from several other molecular tracers of gas with different excitation conditions: H 2 , CO(3-2), CO(14-13), and CO(6-5). The figure nicely reveals where shocks deposit energy into the molecular cloud, lighting up the water emission along the outflow . ...

Arecibo Galaxy Environment Survey (AGES) The precursor run is finally complete. Here are some initial results that illustrate the success of the observing technique and also areas where we had problems. ... The channel range selected was the inner 3696 channels, thus avoiding the increase in noise at the edge of the bandpass. ... Each frame of the movie is an image of the observing region from each individual velocity (or frequency) channel in the datacube. ...