... Here some data observed on the 6m telescope with IFP installed in the OLD focal reducer are presented. ... Mkn 3: velocity field . ... NGC 5252: [OIII] image . ... NGC 5252 was observed 23 Feb. 1998 in the [OIII]5007 emission line with CCD TK1024 as detector. ... We observed the ionized gas velocity fields of the spiral galaxies with two purpose. ... Restored velocity field of NGC 157 in the reference frame rotating with the pattern speed overlaid on the Ha image of the galaxy . ... NGC 4100 . ...

On these pages we present a subset of some observational data that was acquired with an Imaging Fabry-Perot and CCD detector. The Imaging Fabry-Perot is capable of producing some of the best kinematic data on galaxies. Basically, an image of the galaxy is taken in the light of an emission line, in this case, the light from H-alpha from regions of ionized hydrogen known as H II regions. ... H II regions are good tracers of spiral structure as can be seen in this H-alpha image of M33. ...

... The new emission line galaxies are listed in Table 2 containing the following information: . column 1: The object's IAU-type name with the prefix HS. ... This was not corrected in the figure shown in Appendix A. HS1214+3801 : This is seemingly a supergiant H II -region at the very rim of the nearby edge-on disc galaxy (SA(s)cd) NGC 4244 (V hel = 224 kms -1 and B T =10.88). ... To check this option one needs a detailed map of the NGC 4244 velocity field including HS 1214+3801. ...

... July 13, 1996 . M81: A Bulging Spiral Galaxy . ... Explanation: Few stars are still forming in the old giant spiral galaxy M81. The blue regions in this picture - representing ultraviolet light - highlight regions of bright young stars and star formation and appear rare than in M74 and M33 . ... M81 is therefore classified as spiral galaxy type "Sab" on the Hubble Sequence of Galaxies . ... A massive density wave circulates around the center of spiral galaxies. ... About APOD | ...

... We have mapped the 21-cm absorption in the nuclear region of the starburst galaxy NGC 1808 using the VLA AnB-hybrid array with a resolution of approx. 5.2" (= 275 pc). ... The velocity center of the absorption changes from about +120 km/s relative to the systemic velocity in the NW to -145 km/s in the SE, following the rotation pattern in the outer regions of the galaxy. ... The gravitational mass required to explain this fast rotation in the center of NGC 1808 is a few times 10^9 solar masses. ...

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Herschel Guaranteed-Time Key Projects . at Arcetri . ... Both regard spectroscopic observations of different classes of star-forming regions in the Galaxy. WISH: WATER IN STAR-FORMING REGIONS WITH HERSCHEL . ... HS3F: HERSCHEL SPECTRAL SURVEYS OF STAR FORMATION REGIONS . ... Since gas cools mostly by line emission, knowing what molecules are formed and which lines are emitted in the different regions at different times is mandatory to understand the gas thermal balance. ...

... M81: A Bulging Spiral Galaxy . ... Credit: NASA , UIT Explanation: Few stars are still forming in the old giant spiral galaxy M81. The blue regions in this picture - representing ultraviolet light - highlight regions of bright young stars and star formation and appear rare than in M74 and M33 . ... M81 is therefore classified as spiral galaxy type "Sab" on the Hubble Sequence of Galaxies . ... Bright Spiral Galaxy M81 from Hubble . Bright Spiral Galaxy M81 in Ultraviolet from Galex . ...

GALAXIES cenA .tiff 40 Bright Radio Galaxy M31.tiff Nikon Andromeda Galaxy (note HII regions in spiral arms) ngc6744.tiff 40 NGC 6744 a face-on spiral clouds_20d.tiff H'blad The Magellanic Clouds our nearest neighbours Lmc_7.tiff Nikon The Large Magellanic Clouds Lmc_zoom.tiff Nikon Detail of previous image smc_7.tiff Nikon The Small Magellanic Clouds smc-zoom.tiff Nikon Detail of previous image 30dor_40_BVR.tiff 40 The 30 Dor ... B [OIII] Halpha trifid.tiff 40" The Trifid Nebula. ...

... 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. ...

Introduction This catalogue contains mainly the atomic data needed in the astrophysical investigations of low-density plasma. It is a revised and extended version of the "Catalogue of Atomic Data for the Rarefied Astrophysical Plasma" (Golovatyj et al. ... Low-density plasma. ... In the present study we represent only the atomic data for computation of sp ectra of low-density astrophysical plasma (most known kinds of it are gaseous nebulae), their thermal and ionization structure. ...

... This represents the first HI selected sample covering the core and the outskirts of a local cluster of galaxies. ... Optically selected samples miss a considerable number of low luminosity, low surface brightness galaxies underestimating by almost a factor 2 the number of HI rich galaxies present in the cluster volume. ... Right: The g band luminosity function for galaxies in the A1367 volume as obtained from the optically (circles) and HI (histogram) selected sample. ...

... Meta Index / Home Page / Description / Specifying source region shapes . When radiusstyle =`contour', the task calculates the source region shape as an elliptical locus which approximates the contour of the PSF at a given flux value. ... Clearly, in order to calculate the shape of such a flux contour, it is necessary firstly to normalize the PSF to the source brightness and secondly to determine the flux level (in `brightness' units per pixel) at which to find the contour. ...

... According to the most popular cosmological paradigm, the greater part of the galaxy mass is accumulated in the dark matter halo. ... The polar ring galaxies (PRGs) reveal external rings or disks of gas, dust and stars rotating in a plane roughly perpendicular to the disk of the central galaxy. ... The shape of the dark halo in the model was chosen so as to achieve the best fit to the observed rotation of both galaxies themselves and their polar rings. ... The SPRC-7 galaxy. ...

... Bojan Nikolic web pages (r. 329) . Galaxy Evolution . ... The analysis of the radio spectra presented in this paper was made using the radiospec package, version 1.0. This version of radiospec has facilities for modelling spectra with multiple components including synchrotron, high-opacity free-free and spinning dust. Anomalous dust emission in NGC 6946 . ... Paper II: Spinning dust in galaxies . ... Paper I: Method . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

Next: Discussion Up: No Title Previous: Parameters of binary compact . Under the assumptions made above, we can calculate the binary merging rates in the Galaxy R . ... Figure: The dependence of different compact binary merging rates in a model ``elliptical'' galaxy (where all the stars were formed simultaneously at the moment t =0) with mass M . The horizontal line shows the mean merging rate of binary NS in a spiral galaxy of the same mass with a stationary star formation. ...

... The colors indicate the relative motions of galaxies with accurately measured distances, with shades of green and blue indicating motions toward us and shades of yellow to red indicating motions away from us. Our nearest neighbors have only small relative motions (represented by yellows and greens), as seen best in the exploded view of the right panel. We, along with all these nearest neighbors, are moving together toward the lower right corner of the figures. ...

... 2 Columns At the present time, the REGION table is de ned for a two-dimensional space. ... ROTANG (rotation angle): for rotated elements; like X and Y, this column needs to contain vectors of suфcient length. ... Table 1: REGION Table SHAPEs SHAPE X Y R ROTANG Point X Y Circle Xcen Ycen R Ellipse Xcen Ycen Rmaj ; Rmin Angle Annulus Xcen Ycen Rin ; Rout Elliptannulus Xcen Ycen Rinmaj ; Rinmin ; Angin ; Routmaj ; Routmin Angout Box Xcen Ycen Xsize ; Ysize Rotbox Xcen ...

... Next: Object Detection Using Up: Object Detection and Previous: Automated Classification of . ... A status report of the The GSC Object Classifier (GOC) project is presented. ... The GSC contains multiple entries for some objects due to plate overlap. It classifies objects as stars, non-stars, galaxies, blends and potential artifacts; the latter three classifications are rare, and only exist in GSC version 1.1, to which they were added manually. ... star, . ... non-star, . ...

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