... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Studying the Cosmological Evolution of Galaxy Clusters with (Sub-)mm Observations . ... Data Handling and Products . ... ESO Data . ... Studies of the Planck data set with optical and sub-mm follow-up observations give new insights about the early assembly of the first clusters, and the later evolution of their gas content as well as of their population of star-forming galaxies. ...

... GOODS unites extremely deep observations from NASA's Great Observatories, Spitzer , Hubble , and Chandra , ESA's Herschel and XMM-Newton , and from the most powerful ground-based facilities, to survey the distant universe to the faintest flux limits across the electromagnetic spectrum. ... The space-based observations are complemented by ground-based imaging and spectroscopy, including extensive commitments of ESO and NOAO observing time. ... 2010-04-10: Deep VLA 1.4 GHz data for GOODS-North . ...

... Star formation . ... The puzzling core of the Phoenix cluster: deep X-ray observations . ... SPT-CLJ2344-4243 shows a strong cool core with a potential mass deposition rate of ~3000 Msun/yr derived from the X-ray luminosity. ... The spectral analysis of the deep XMM-Newton observation of the Phoenix cluster found an average mass-deposition rate between 210 and 620 Msun/yr for the gas in the temperature range 0.15-3.0 keV (subject to calibration uncertainties). ...

... Observatory . ... The Laboratory of Astrometry . Dept. for Physics of Stars&Galaxies . ... Astronomical Calendar . ... UkrVO . ... The purpose of research: Creating a stellar catalog to study the structure and kinematics of star systems, including open star clusters and stars with large proper motions; the enhancement ICRF / Hipparcos system to stars dawn to 17 m (V); Search of binary systems of brown dwarfs and determination of their parameters; astrometry of minor bodies of the Solar System. ...

... Current Work ­ Attempting to understand AGN feedback in galaxy clusters AMI ­ Where does AMI fit in? ... Feedback needed to offset cooling and explain the deficit of cold, molecular gas in cluster cores. ... Some already observed with AMI ­ Ideally want to observe many more (~100 ­ 150) cooling clusters in this energetically important but often overlooked frequency range. ... If bright at 1.4GHz then observe with AMI Campaign to observe many clusters at higher frequency with GISMO (2mm). ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Starbursts are short-lived events, stars are forming so quickly that the reservoirs of interstellar gas from which stars are coalescing would be used up on a timescale much shorter than the age of the galaxy . ... Strong stellar winds from giant new stars in the starburst region combine with the blasts of supernovae to push a mighty flood of extremely hot gas, a ?superwind? from the galaxy thousands of light years into intergalactic space. ...

... We have made observations of the Perseus cluster with the Westerbork Telescope at 610 MHz. ... Several newly detected sources are identified with cluster galaxies. ... No evidence is found for the existence of the previously reported ~ 65'x25' cluster halo, 3C 84B. Key words: radio galaxies - clusters - tailed radio sources buoyancy The Perseus Cluster of galaxies is one of the most fascinating systems accessible to extragalactic astronomers. ...

... Stellar cinders . Born-again stars . ... Heavyweight Stars . ... What will happen inside the Sun and why? ... These are questions about "stellar evolution", the history of stars as they are transformed by nuclear processes deep inside. ... Most of what we know about stellar evolution comes from computer models of stars. ... We learn about the evolution of high-mass stars from HR diagrams of young galactic open clusters, and the evolution of low-mass metal-poor stars from old globular clusters. ...

... 10.08.2006 . ... CXC , NASA Explanation: If you had x-ray vision , the central regions of our Galaxy would not be hidden from view by cosmic dust clouds. ... Pleasing to look at, the gorgeous false-color representation of x-ray data from the Chandra Observatory shows high energies in blue, medium in green, and low energy x-rays in red. ... It reveals massive, x-ray emitting star clusters in a crowded environment. ... Publications with keywords: X-ray . Publications with words: X-ray . ...

... 1) A new bright galaxy of the Local Group VV124 (UGC4879) is found. ... Kopylov A.I., Tikhonov N.A., Fabrika S.N., Drozdovsky I.O., Valeev A.F., MNRAS Lett, V. 387, Issue 1, L45, 2008. ... For systems of galaxies in the regions of the Hercules and Leo superclusters the dwarf-to-giant ratio of galaxies in the r-band is evaluated, and it is found that this ratio increases with increasing X-ray luminosity at log L X > 43.5 erg/s. Kopylova F.G., Kopylov A.I., Ast. ... Kopylova F.G., Kopylov A.I., Ast. ...

Maidanak Laboratory is a part of Sternberg Astronomical Institute of Moscow State University. ... Observations are conducted with 1.5 meter RC telescope AZT-22 of Maidanak Observatory (Uzbekistan). rus . ... maidanak lab home page . ... at Sternberg Astronomical Institute . ... 2000). ... Because of technical reasons, we had to use three different CCD cameras in our observations, Pictor-416 camera in 1995, Pictor-416 and TI 800 x 800 cameras in 1997 and 1998, and ST-7 camera in 1999 and 2000. ...