Proposal Identification No.: ... Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Extragalactic 30 Hours 1 hour Mapping Extended HI around two THINGS galaxies One of the outstanding questions in astronomy today is how galaxies obtain the gas that they need to continue forming stars for longer than a few gigayears. ...

This animation shows a galaxy cluster with two mass concentrations (the pink shading indicates the projected mass density) lensing a background field of faint blue galaxies. ... Inside the Einstein ring radius one has radial arcs, and right in the center of the cluster there are demagnified images. The highest magnifications occur at the Einstein ring radius, giving the large tangential arcs. ... Abell 2218 and CL2244-02 are clusters with tangential arcs. ... Tutorial : Part 1 | Part 2 | ...

On' failures in the NIRSpec MEMS ST-ECF Instrument Science Report NGST 2002-02 The effects of `on' failures in a MEMS array for the NGST NIRSpec Santiago Arribas, Robert Fosbury Peter Jakobsen --1-- ST-ECF Instrument Science Report NGST 2002-02 The effects of `on' failures in a MEMS array for the NGST ... Assuming that the spectrum of a single facet uses 2000 detector pixels, only 0.01% of `on' failures is acceptable (i.e., 400 facets in a 2k в 2K MEMS array). ...

... 50 Weirdest Objects . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... When a gravitational lens magnifies a background galaxy, why don't we see the object doing the lensing, as we would if looking through an optical lens? ... When the gravity of a foreground galaxy distorts and magnifies light from a background galaxy, the result is either a single Einstein ring or multiple images of the object. Get instant access to subscriber content on Astronomy.com! ...

... Galaxies 99 Cosmic background with model of cloudy interstellar medium Yu. ... Figure 1: Averaged spectrum of the cosmic background I f in frequency range 0.25 200 MHz for the Galactic poles. ... First interpretation of the cosmic noise background spectrum at broad band frequency range 0.25 200 MHz with a model of the cloudy interstellar medium ISM is presented here. ... Synthesized background spectra I f for regions of the Galactic poles at the frequency range 0.25 200 MHz is presented in Fig. ...

... Astronomy news . ... NASA's Spitzer Images Out-of-This-World Galaxy . ... It is spiral-shaped like our Milky Way, with long, spindly arms of stars. The "eye" at the center of the galaxy is actually a monstrous black hole surrounded by a ring of stars. In this color-coded infrared view from Spitzer, the area around the invisible black hole is blue and the ring of stars, white. ... The ring around the black hole is bursting with new star formation. ...

ARCSAT ID NUMBER: AS06 DESCRIPTIVE TITLE: Stromgren Photometry of Galactic Peripherys and Streams PI: Dmitry Bizyaev OBSERVER(S): Dmitry Bizyaev UNCERTIFIED/UNTRAINED OBSERVERS: N/A COLLABORATORS: CONTACT INFORMATION: dmbiz@apo.nmsu.edu TIME REQUESTED: 1 week in the dark time between Jan 4 and Apr 3, 2016 INSTRUMENT: SurveyCam FILTERS : Stromgren uvby, 2 square COMMENTS: remote observations BRIEF SCIENCE JUSTIFICATION: Last decade numerous faint ... 2014). ... 2014, ApJ, 787, 24 ...

. My astronomical research interests center on galaxy structure and evolution. Current topics include: . Polar-ring and interacting galaxies (see also new catalogue ) . Galaxy warps: statistics, properties and origin . Spiral galaxies at z~1: radial and vertical structure of stellar disks, statistics of interactions . Surface photometry and kinematics, dynamical modeling . Observational cosmology . Joomla Counter since Sep 1997

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Coronado€о Solar . ... Spotting Scopes . ...

... Previous: Substepping and its Application to HST Imaging . ... This is a preliminary report on an application of the co-addition technique based upon the Richardson-Lucy algorithm. The combination of high signal-to-noise ground-based images obtained with the ESO NTT using SUSI with high angular resolution HST FOC f/96 images gives new insights on the properties of galaxy cores and their potential time variability. Cores of galaxies are one of the main thrusts of present extragalactic research. ...

ATMoB Awards Program - Messier Marathon Worksheet Observer: Date: Instrument(s) Used: Location: Messier Observing Catalog/Worksheet Observing Order 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Messier Number M 77 M 74 M 33 M 31 M 32 M110 M 52 M103 M 76 M 34 M 45 M 79 M 42 M 43 M 78 M1 M 35 M 37 M 36 M 38 M 41 M 93 M 47 M 46 M 50 ...

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... Hubble's (1936) "tuning fork" of galaxy morphologies is the basis for modern galaxy classification. (arXiv:1102.0550.v1) Fig. ... Type E+ galaxies are "late" ellipticals, which may include faint extended envelopes typical of large cluster ellipticals, or simple transition types to S0-. (arXiv:1102.0550.v1) Fig. 7-- Examples of barred and nonbarred S0 galaxies of different stages from "early" (S0-), to "intermediate" (S0o ), to "late" (S0+), including the transition stage to spirals, Fig. ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . GALAXIES . This Hubble Space Telescope image shows a selection of galaxies great "islands" of billions of stars seen in every direction our telescopes can look. ... The galaxy that appears so large at the upper left is 300 million lightyears away -- so far that light from it takes 300 million years to reach us. Some of the galaxies that look smaller are even further away. ... Return to An Ancient Universe . ...

Updates and Additions to EPIC Background Products http://www.sr.bham.ac.uk/xmm3/BGproducts.html A A 409, 395 (2003) Update to talk presented at Tuebingen BG workshop XMM EPIC MOS Andy Read ( amr30@star.le.ac.uk ) XMM- EPIC Background workshop Mallorca , Spain 03/02/05 Blank sky event files essential for BG subtraction of e.g. extended objects filling FOV Extremely useful as alternative BG comparison method for semi ...

... NGC 4631 Whale galaxy (Caldwell 32) - спиральная галактика с перемычкой Кит (Arp 281) в созвездии Гончих Псов (Canes Venatici) .. ... Просмотр полной версии : NGC 4631 Whale galaxy (Caldwell 32) - спиральная галактика с перемычкой Кит (Arp 281) в созвездии Гончих Псов (Canes Venatici) .. ... NGC 4631 Whale galaxy (Caldwell 32) - спиральная галактика с перемычкой Кит (Arp 281) в созвездии Гончие Псы (Canes Venatici (http://www.starlab.ru/showpost.php?p=178940&postcount=721)) .. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... In the late 1970s, jets were discovered in megaparsec-long radio galaxies. ... This involved the first quantitative analysis of jet warping, bending and disruption in galactic halos. ... Hot spots are created where a jet finally crashes into the surrounding medium. ... I extended the so-called Twin Exhaust Model, using numerical simulations to show that hot gas can be ejected in three forms: jets, bubbles and clouds. ...

... Galaxy Evolution Explorer (GALEX) . ... Searching for SZ clusters . ... Baryon content of galaxy clusters and cosmology . ... 3 sigma peaks: Observational Signatures of High Redshift Galaxies and Low Redshift Clusters . CLUSTERS OF GALAXIES . ... Clusters of galaxies seen in X-rays: war and peace . ... Chandra X-ray Observations of Clusters/Groups/Galaxies . ... Common timing features in neutron stars and black holes . ... X-ray luminosity function of low-mass X-ray binaries in galaxies . ...

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

... Visible Distribution of Galaxies. ... Features of Elliptical, Lens-Shaped, Spiral and Irregular Galaxies. Galaxies with Bar. ... Distribution of Surface Brightness of Surface and Spiral Galaxies. ... Color Characteristics of Galaxies. ... Methods of Galaxies' Mass Determination. ... Hidden Mass of Spiral Galaxies. ... Features of Dark Matter Distribution in E and SO Galaxies. ... The Whole Number of Galaxies and Their Density by the Results of Observation on the 'Hubble' Space Telescope. ...