... Several knots of radio emission in the jets were identified and their motion could be followed between the images. ... The brightness evolution of the knots was found to be consistent with exponential decay of time constant 16 days. ... Knot Velocity and Distance Measurement . ... This paper presents preliminary results of recent 5 GHz observations of SS433 using MERLIN , including a measurement of its distance and an attempt to determine the behaviour of the knot brightness decay. ...

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... Weidong Li, University of California - Berkeley . ... Abstract . ... Binaries in the Kuiper Belt: Probes of Solar System Formation and Evolution . ... Asteroseismology of Extrasolar Planet Host Stars . ... Hubble Investigation of Asteroid 21 Lutetia in Support of the Rosetta Mission Flyby . ... The present program aims to use the Fine Guidance Sensors on HST to measure the pulsational modes in the star HD 17156, an 8th magnitude G-type subgiant at a distance of ~ 78 parsecs from the Sun. ...

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• HST this week: 064
• M3: An Ideal Laboratory for Testing Stellar Evolution and Dynamics
• HST this week: 341

... XMM-Newton CCF Release XMM- CCF -REL-331 Page: 4 Table 1: Ratio of number of events in extracted spectra ( New /Current) Ob ject Obsid Rev RGS1 o1 RGS1 o2 RGS2 o1 RGS2 o2 PKS 2155-304 0411780301 1543 1.02 1.08 1.02 1.08 Mkn 421 0560980101 1640 1.02 1.08 1.02 1.08 Mkn 421 0560983301 1732 1.02 1.08 1.02 1.08 PKS 2155-304 0411780401 1734 1.03 1.09 ... XMM-Newton CCF Release XMM-CCF-REL-331 Page: 8 Figure 6: Evolution of the Parallel CTI (left RGS1, right RGS2...

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... Ignacio Ugarte Urra's PhD thesis topic is the investigation of coronal bright points. In his first paper (in collaboration with Gerry Doyle and Maria Madjarska) he investigated the formation, evolution and decay of a coronal bright point via a spectroscopic analysis of its transition region counterpart and the evolution of the underlying magnetic bipole during 3 days of almost continuous observations. ... In general the bright point has a radiance 4 times higher than that of the network. ...

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• Stars Beyond Maturity
• Observations with the Faulkes Telescopes
• MASSES

The Starburst­AGN Connection ASP Conference Series, Vol. 408, c 2009 Weimin Wang, Zhaoqing Yang, Zhijian Luo, and Zhu Chen, eds. Cosmic Evolution of Radio Sources in ATLAS Minnie Y. Mao,1 1 ,2,3 Ray P. Norris ,2 Rob Sharp,3 and Jim E. J. Lovell1 School of Mathematics and Physics, University of Tasmania, Private Bag 37, Hobart, 7001, Australia ... Using AAOmega on the AngloAustralian Telescope we have successfully obtained spectroscopic redshifts for 395 of the ATLAS radio galaxies. ... 2006). ...

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• ATNF Media Release - December 1, 1998
• The Brightest Galaxies from HIPASS
• Late Stages of Stellar Evolution

... GSAOI Home . ... Science . ... It is widely accepted that the evolution of the large scale structure of the Universe is driven by dark matter. Understanding this dark matter continues to be one of Astronomy's great unsolved problems. Measuring the bulk motions of galaxies allows us to map the overall mass distribution of the Universe in a way that is independent of the luminous matter in galaxies. ...

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• Philip Lah's Talks
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... The study of the Large-scale structure of the Universe and measurements of the Dark Energy equation of state; The exploration of the growth and cosmological evolution of supermassive Black holes in the Universe. ... In course of the all sky survey SRG will discover about 100 000 galaxy clusters and 3 million AGNs. Galaxy clusters are the largest gravitationally bounded objects in the Universe and are best explored through the study of X-ray emission from the hot intergalactic gas. ... 2016 IKI RAN ...

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... LMC Project Outline . NGC 1818 Initial Results . ... The Large Magellanic Cloud (LMC) is uniquely suitable for the study of massive star clusters at all stages of evolution. By combining HST observations of these clusters with N-body models we hope to understand the origin and evolution of rich star clusters in our own Galaxy, in the LMC, and beyond. ... We aim to combine our HST observations with N-body models to understand the formation and evolution of globular clusters. ...

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• A Color Analysis of NICMOS Parallel Observations
• Unusual Emission near a Compact Source in Orion
• NICMOS/HST H-band (F160W) Images of the 30 Dor Starburst Cluster

... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

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• Low Surface Brightness Galaxy Gallery
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• Physics 410/510 Observational Cosmology

... V838 Mon is a member of a new class of eruptive variables which appear as a peculiar novae having late K-M type spectra in their outburst. Before its outburst, it was a wide binary system of B3V type stars. ... The B3V companion was seen in the outburst in the UV spectrum taken with HST (Rauch et al., ... In the latest spectra, the light of B3V companion was predominating in the short-wave photometric bands. ... CCD blue frames of V838 Mon before the eclipse (left) and in the eclipse (right). ...

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• Observational data and reduction
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... Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: ALMACAL: the evolution of the molecular gas in galaxies using ALMA calibrator observations . ... ALMA . ... ESO-MIDAS . ... It is therefore essential to probe the evolution of cold gas over cosmic time. ... We are looking for an enthusiastic PhD student who is interested in working with us in using ALMACAL to address exciting and topical science questions related to the evolution of molecular gas in galaxies. ...

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• ESO - Studying the Cosmological Evolution of Galaxy Clusters with (Sub-)mm
• ESO - Thesis Topic: Evolution of SN 1987A
• Colours and magnitudes

With the Square Kilometre Array planned to begin observations in around a decade and large neutral hydrogen multibeam surveys currently underway at Arecibo, the question of what we can learn about the evolution of galaxies through neutral hydrogen observations is very timely. ... Robert Minchin (NAIC, chair) . Emmanuel Momjian (NRAO) . ... Robert Minchin (co-chair) . Emmanuel Momjian (co-chair) . ... R. Minchin & E. Momjian ...

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• Magellanic Stream

... 2000: . According to the BTA observations, the redshift Z=0.7063+-0.0017 was measured for a distant galaxy possessing the 24 magnitude, in which there occurred an explosion of a massive star, followed by a gamma-ray burst catalogued as GRB991208. ... In collaboration with the Space Telescope Science Institute (USA), the Institute of Astrophysics of Andalusia (Spain). ... According to the Palomar Sky Survey, about 600 new nearby dwarf galaxies were discovered. ... Archive . ...

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• Detection of unique bright radio flare of X-ray binary
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... 2015 December 11 . The Brightest Spot on Ceres . Image Credit: NASA , JPL-Caltech , UCLA , MPS/DLR/IDA . ... Exploring Ceres from orbit since March, the Dawn spacecraft's camera has revealed about 130 or so mysterious bright spots, mostly associated with impact craters scattered around the small world's otherwise dark surface. ... Since impacts would have exposed the material, Ceres' numerous and widely scattered bright spots may indicate the presence of a subsurface shell of ice-salt mix. ...

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• APOD: 2004 December 30 - M81 and M82: GALEX Full Field
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... It is dark. ... Even without the structures' intense glare, your eyes take a moment to adjust to the vast scatterings of stars dazzling as diamonds on a sea of black velvet. ... A waiter you hadn't noticed puts a menu on the table. ... Oui," the waiter responds, "It is the stellar wind. ... You should be able to see them all in another moment -- the big one first and then the others. ... A second later a gap appears and, just as the waiter predicted, you see a brilliant blue white star. ...

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• ASP: An Ancient Universe - Introduction
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... Stars . ... Cepheid variable stars have been known since the 18th century. ... Regularly brightening to a peak over days, weeks or months before fading these variable stars were remarkable curiosities to astronomers in past centuries.€а The term Cepheid is taken from the star Delta Cephei in the constellation of Cepheus, which was identified as variable€а in 1784 by the teenaged prodigy John Goodricke (1764-96). ... Tweets that mention Cepheids: Inconstant Stars which break the rules | ...

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• December Night Sky Wonders | Astronotes
• Wonders of the December Sky | Astronotes

... Called Gliese 623b or Gl623b, the diminutive star (right of center) is ten times less massive than the Sun and 60,000 times fainter. ... The image file is on oposite.stsci.edu in the directory /pubinfo/gif: PR# GIF File Caption text Object STScI-PRC94-54 Gl623b.gif G1623b.txt Dwarf Star Gliese 623b The photo release text is in the directory /pubinfo/press-releases: PR# PR text STScI-PRC94-54 PR-54.txt Another directory, /pubinfo/latest, contains all of the files relevant to the latest releases. ...

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• Dust evolution across the CO snowline in a protoplanetary disk
• Arcetri Star-Formation Group Publications
• APOD: December 30, 1998 - Supernova 1994D and the Unexpected Universe

... Laboratory "Structure" was created in 1992 from the temporary scientific group formed in 1988 in SAO RAS. In December 2003 it was transformed into group of Physics and Evolution of Galaxies , which enters into new Laboratory of Extragalactic ASTROPHYSICS and COSMOLOGY. ... Kniazev A.Y. senior researcher, associated foreign member . Kniazeva T.F. junior researcher, associated foreign member . ... Lipovetsky Valentin A. (1945-1996) former leader of the Laboratory . ...

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• Observations and data reduction
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... We suggest simple method of the selection of distant galaxies based on their radio properties. ... RC0015+0503a , RC0015+0503b , RC0015+0501 , RC0034+0513 , RC0038+0449 , RC0042+0504 . ... RC0105+0501 , RC0110+0500 , RC0117+0503 , RC0126+0502 , RC0133+0459 , RC0135+0450 , RC0137+0539 , RC0143+0505 , RC0152+0453 , RC0154+0459 , RC0159+0448 . ... RC0209+0501b , RC0213+0516 , RC0226+0512 , RC0250+0512 . ... RC0302+0456 , RC0308+0454 , RC0311+0507 , RC0318+0456 , RC0355+0449 . ...

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• Informational system "Evolution of RG"

... 172 ] Briefly, the count rate at the detector from a source at a redshift z is . ... Figure 55 shows the ``Green functions'' for the double compact binary merging rate   evolution assuming no collapse anisotropy. ... Another way that diverse peculiarities in the - distribution induced by the sources evolution could arise is connected with a possible non-monotonic character of the star formation rate in galaxies. ... 22 ] Figure  56 shows two-dimensional cuts through the parameter space. ...

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• The Radiopulsar PSRB1259-63 - a Probe in the Stellar Wind Plasma
• Parameters of binary compact star evolution
• The equilibrium period