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1. HST this week: 350
... 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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Ссылки http://www.stsci.edu/~inr/thisweek1/2008/thisweek350.html -- 10.1 Кб -- 22.12.2008
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2. ATNF Media Release - December 1, 1998
... The expansion is measured as a number called the Hubble Constant . ... Our value is about 20% lower than the one got with the Hubble Space Telescope in 1994," said Dr Jim Lovell, leader of the team that made the measurement. The Hubble Constant is named after American astronomer Edwin Hubble, who in the 1920s found that other galaxies were moving away from ours. ... The Hubble Constant links the galaxy's distance with its speed." ... A short run-down on the Hubble Constant: . ...
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Ссылки http://www.atnf.csiro.au/news/1dec98/1dec98.html -- 8.4 Кб -- 01.10.2012
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3. Coronal Bright Points: Another Oscillating Environment
... 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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Ссылки http://star.arm.ac.uk/annrep/annrep2003/node50.html -- 6.2 Кб -- 18.05.2004
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4. http://www.mrao.cam.ac.uk/yerac/jowett/jowett.ps
... After this, the knots begin to fade. ... Knot Evolution 3.1. ... As can be seen from Figure 2 the knots were wellfitted by such lines, indicating that their motion was ballistic with no appreciable F.H. Jowett R.E. Spencer: The Radio Jets of SS433 3 ARC SEC ARC SEC 0.8 0.6 0.4 0.2 0.0 0.2 0.4 0.6 0.8 0.4 0.2 0.0 0.2 0.4 0.6 (a) Z AA N JD 2448598.1 7th December, 1991 BB Core M A C ARC SEC ARC SEC 0.8 0.6 0.4 0.2 0.0 ...
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Ссылки http://www.mrao.cam.ac.uk/yerac/jowett/jowett.ps -- 1085.2 Кб -- 22.02.1995
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5. http://www.mso.anu.edu.au/seminars/abstracts/20141211-1100.html
In accreting binary neutron star systems matter is channelled by the strong magnetic field to the poles of the neutron star. The accreted matter accumulates at the poles to form accretion mounds. Pressure from the confined matter can significantly distort the local magnetic field structure, affecting the X-ray observations and long term evolution of the magnetic field. ...
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Ссылки http://www.mso.anu.edu.au/seminars/abstracts/20141211-1100.html -- 4.4 Кб -- 10.04.2016
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6. Spectrum-Roentgen-Gamma - The astrophysical Project at IKI RAN
... 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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Ссылки http://hea.iki.rssi.ru/SRG/en/index.php?page=science -- 8.3 Кб -- 10.04.2016
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7. Astronomy HyperText Book: Stellar Evolution
... 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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Ссылки http://zebu.uoregon.edu/textbook/se.html -- 4.8 Кб -- 16.12.1997
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8. http://xmm.vilspa.esa.es/docs/documents/CAL-SRN-0331-1-0.pdf
... 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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Ссылки http://xmm.vilspa.esa.es/docs/documents/CAL-SRN-0331-1-0.pdf -- 715.4 Кб -- 11.01.2016
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9. http://jet.sao.ru/jet/~goray/838/v838ecl.htm
... 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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Ссылки http://jet.sao.ru/jet/~goray/838/v838ecl.htm -- 7.3 Кб -- 08.01.2007
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10. ESO - Thesis Topic: ALMACAL: the evolution of the molecular gas in galaxies
... 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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Ссылки http://www.eso.org/sci/activities/thesis-topics/abstr-zwaan1.html -- 29.5 Кб -- 10.04.2016
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11. The Evolution of Galaxies Seen Through The Neutral Hydrogen Line The Evolution
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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Ссылки http://www.naic.edu/~astro/hiconference/hiconffront.shtml -- 4.9 Кб -- 02.10.2012
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12. Metagalaxy sector, archive 2000
... 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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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res2000.html -- 6.0 Кб -- 10.04.2016
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[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/Science/results/ar_metagal/res2000.html -- 6.0 Кб -- 10.04.2016
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13. APOD: 2015 December 11 - The Brightest Spot on Ceres
... 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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Ссылки http://www.sai.msu.su/apod/ap151211.html -- 5.4 Кб -- 10.04.2016
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14. ASP: Stellar Evolution (a la Chez Stella)
... 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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Ссылки http://www.astrosociety.org/edu/publications/tnl/49/chezstella.html -- 9.4 Кб -- 02.10.2012
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15. The Formation and Evolution of LMC Rich Star Clusters: NGC 1818
... 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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Ссылки http://www.stecf.org/conferences/sardinia/node27.html -- 15.4 Кб -- 12.06.2006
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16. Arcetri Star-Formation Group Publications
... 2000, ApJ, 537, L49 . ... F. Palla . Invited Talk at the IAU Symposium 200 "The formation of binary stars" eds. R.D. Mathieu and H. Zinnecker (ASP Conf. Ser.) in press . Optical follow-up of ROSAT discovered candidate members of the open cluster Coma Berenices . ... 2000, A , in press . ... 2000, ApJ, in press . ... 2000, ApJ, in press (Sept. ... 2000, ApJ Lett., in press . ... Click to examine publications from other years . ... Star Formation Group . ... Arcetri Home Page . ...
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Ссылки http://www.arcetri.astro.it/science/starform/publ2000.htm -- 12.8 Кб -- 21.06.2001
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17. SAO: group Physics and Evolution of Galaxies home page
... 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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Ссылки http://www.sao.ru/precise/Laboratory/Structure_eng.html -- 3.4 Кб -- 19.12.2014
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18. Cepheids Inconstant Stars which break the rules | Astronotes
... 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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Ссылки http://www.armaghplanet.com/blog/cepheids-inconstant-stars-which-break-the-rules.html -- 52.8 Кб -- 09.04.2016
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19. ОТЧЕТ
... Radio astronomical tests of the engineering model of the space radio telescope (SRT) were completed in Pushchino - see Results . ... Monitoring of the development of the upgrade on-board 1.35-cm receiver (R-SRT-1.35 cm): . ... EM Engineering Model . ... OHCFS-SRT Space Radio Telescope On-board Heterodyne and Clock Frequency Synthesizer set . OHFS-SRT Space Radio Telescope On-board Hydrogen Frequency Standard . ORFS-SRT Space Radio Telescope On-board Rubidium Frequency Standard . ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/archives/2004/month_notic/dec_mar.html -- 23.7 Кб -- 03.11.2011
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20. Illusion and Evolution in Galaxy Cluster Abell 2667
... Illusion and Evolution in Galaxy Cluster Abell 2667 . ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: gravitational lens - cluster of galaxies . Publications with words: gravitational lens - cluster of galaxies . ... Abell 2218: A Galaxy Cluster Lens . The Coma Cluster of Galaxies . The Einstein Cross Gravitational Lens . Abell 370: Galaxy Cluster Gravitational Lens . MACSJ0025: Two Giant Galaxy Clusters Collide . ...
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Ссылки http://www.astronet.ru/db/xware/msg/1221013/a2667_hst_big.jpg.html -- 13.3 Кб -- 05.03.2007
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