Next: Observations and data reduction Up: HS 0822+3542 - a Previous: HS 0822+3542 - a . ... I Zw 18, a BCG with the lowest known oxygen abundance among the galaxies (O/H 1/50 (O/H) , Searle & Sargent [ 1972 ]; Izotov & Thuan [ 1999 ]), has been suggested as a candidate to be a truly-local young galaxy, experiencing its first short SF episode. ... 1998 ]). ... In this paper we describe the data obtained for the third most metal-deficient galaxy, HS 0822+3542 with O/H = 1/36 (O/H) . ... 0822+3542 1 . ...

... There are preliminary series of photometric and radio spectral observations of the above-mentioned stars, archival data on the light curves of the stars, results of the search for OH and H 2 O maser emission in IRAS point sources that possess the IR parameters similar to Miras. ... The aim is a detailed study of the maser emission variability. ... In 1996-1997, astronomical observations of Mira Ceti-type stars (miras) were carried out in three spectral ranges: optical, infrared, and radio. ...

... 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. ...

... Dept. for Physics of Stars&Galaxies . ... Using a database view Sloan Digital Sky Survey (SDSS), containing almost a million spectra created 15,000 sample galaxies with active star formation, which is used for various studies and physical state of evolution of galaxies. ... Star clusters of the Galaxy . The project MWSC (Milky Way Star Clusters) directory using 2MASS, which includes nearly 500 million vision to the limit Ks = 15.3, analyzed more than 4,000 cluster-like objects in the galaxy. ...

... Shustov B.M., Wiebe D.S. Dust expelling from the Galaxy ( abstract from the journal ). Astronomy Reports , 1995, 39 , 578-586 [AZh, 72 , 650-659]. Wiebe D.S., Shematovich V.I., Shustov B.M. Chemical and dynamical evolution of protostellar clouds: initial stages of collapse ( abstract from the journal ). ... Shustov B.M., Wiebe D.S., Tutukov A.V. Evolution of disk galaxies and loss of heavy elements into the intracluster medium. ... ApJ (Letters), 1998, 503 , L71-L74 ( astro-ph/9806155 ). ...

... Comet Animation . ... Comet structures are diverse and very dynamic, but they all develop a surrounding cloud of diffuse material, called a coma, that usually grows in size and brightness as the comet approaches the Sun. ... As comets approach the Sun they develop enormous tails of luminous material that extend for millions of kilometers from the head, away from the Sun. ... The evaporated molecules boil off and carry small solid particles with them, forming the comet's coma of gas and dust. ...

documentstyle[11pt]{article} \begin{document} SURFACE VRI- PHOTOMETRY AND THE STRUCTURE OF THE "DUSTY" GALAXY NGC 972, by A.V. Zasov, A.C.Moiseev. ... Color distribution in the inner part of the galaxy is very non-homogeneous and asymmetric. ... The map of distribution of $Q_{VRI}$ shows the presence of "blue" (in sence of low $Q_{VRI}$) nucleus and rather "red" inner disk with radius $R\sim 3 kpc$. ...

Тема : Галактики и прочие туманные пятна (наблюдения галактик и туманностей, интересные факты) .. Показать сообщение отдельно . ... Re: Галактики и прочие туманные пятна. ... Инструменты для наблюдения туманности Messier 16 Eagle Nebula (IC 4703) .: ...

Chandra ACIS Survey of M33 (ChASeM33): X-ray Imaging and Spectroscopy of the Bright SNR M33SNR21 T.J. Gaetz, R.J. Edgar, P.P. Plucinsky, M. Sasaki (SAO), P. Ghavamian, W. P. Blair (Johns Hopkins) B. Williams (U. Washington), K.S. Long (STScI), P.F. Winkler (Middlebury College), J.P. Hughes (Rutgers) T. Pannuti (Spitzer Sci. ... The shor t axis of the M33SNR 21 X-ray axis runs through the brightest par t of the remnant, and the optical emission extends well beyond the X-ray rim in the southwest. ...

... Archive of publications: . ... 2005 . ... S.V.Kuzin , I.A.Zhitnik , S.V.Shestov , S.A.Bogachev , O.I.Bugaenko , A.P.Ignat'ev , A.A.Pertsov , A.S.Ul'yanov , A.A.Reva , V.A.Slemzin , N.K.Suhodrev , . ... S.V.Kuzin , S.A.Bogachev , I.A.Zhitnik , A.A.Pertsov , A.P.Ignat'ev , A.V.Mitrofanov , V.A.Slemzin , S.V.Shestov , N.K.Suhodrev , O.I.Bugaenko , . ... I.M.Chertok , V.V.Grechnev , V.A.Slemzin , S.V.Kuzin , O.I.Bugaenko , I.A.Zhitnik , A.P.Ignat'ev , A.A.Pertsov , J.-P.Delaboudiniere , . ...

... Samara State Aerospace University Staff Semkin Nikolay Danilovich . ... Semkin N.D. , Voronov K.E. , Telegin A.M. and others. ... 2015. ... Semkin N.D. , Telegin A.M. , Piyakov A. V. and others. ... Semkin N.D. , Telegin A.M. , Voronov K.E. Registering the Elemental Composition of Micrometeoroids and Debris // Protection of Materials and Structures From the Space Environment. 2013. ... Semkin N.D. , Telegin A.M. , Voronov K.E. and others. ... Voronov K.E. , Semkin N.D. , Telegin A.M. and others. ...

... 331, P 1-10 (1998). Abstract . ... Intergalactic He II absorption and the baryonic content of the Lyman forest . ... 331, P 81-120 (1998). ... 331, P 147-161 (1998). ... 331, P 162-166 (1998). ... 331, P 167-170 (1998). ... 331, P 171-178 (1998). ... 331, P 179-186 (1998). ... 331, P 187-192 (1998). ... 331, P 193-210 (1998). ... 331, P 211-223 (1998). ... 331, P 224-230 (1998). ... 331, P 231-243 (1998). ... 331, P 244-250 (1998). ... 331, P 251-261 (1998). ... helpdesk@link.springer.de ...

LBV PSN J12355230+2755559 in NGC 4559 . This page is devoted to information on Supernova PSNJ12355230+2755559 in NGC 4559 . ... This one is a Type LBV in a small companion galaxy of NGC 4559 (z=0.003). ... It has been discovered several times at this point first as PSN J12355230+2755559 by LOSS, soon after which it was confirmed as an LBV. A second outburst was found as PSN J12355216+2755560 , discovered on 2014/02/25.723 by K. Iagaki. ... 2012/01/11.250 . ... Joseph Brimacombe . ...

... 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. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... Catalog . Publications . ... Koposov, S., Glushkova, E., Zolotukhin, I. 2008: Automated search for Galactic star clusters in large multiband surveys. ... BibTeX entry ] . ... Glushkova, E.V., Zabolotskikh, M.V., Koposov, S.E., Spiridonova, O.I, Vlasyuk, V.V., Rastorguev, A. S. 2010: Photometry of the poorly studied galactic open star clusters King 13, King 18, King 19, King 20, NGC 136, and NGC 7245 , Astronomy Letters, 36, 75 . ...

Find Similar Abstracts . ... The 'black' regions of the Universe . ... The significance of regions devoid of galaxies (black regions) for the bunching and fragmentation theories of the evolution of the Universe is discussed. ... Using the theory, a lower limit on the average density of the gas remaining in the black regions can be set, based on the finding that eight percent of gas elements are expanding in all three dimensions at the first stage of fragmentation. ...

... Coronal Mass Ejections (CMEs) -- essential restructuring and large-scale disturbances of the global solar magnetosphere (GSM). Dimmings (transient coronal holes) -- regions of strong depletion in soft X-ray and EUV emission following CMEs; several hours . e.g., Rust, 1983; Sterling and Hudson, 1997; Hudson and Webb, 1997; Thompson et al., 1998, 1999; Zarro et al., ... 1998, 1999; Gopalswamy and Thompson, 2000; Delannee, 2000; Biesecker et al., ... 1998, 1999, 2000; Zarro et al., ... 1999). ...

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

... 2006; Loeb, 2008) ? CGCG 269-049 HI HII IFUs, Fabry-Perot interferometers ISM Spatial resolution Velocity resolution Ionized gas 1-2 arcsec 10-30 km/s 21 cm radio inrerferometers Neutral hydrogen 10-50 arcsec 2-10 km/s GMRT(Begum et al, 2008) DDO125 HI HI and HII (, , .) IC10, 1613 ( , 2003-2008) NGC 2366 (van Eymeren et al, 2008) NGC 4861 (van Eymeren et al, 2009) H 6-m telescope, SCORPIO/FPI UGC 8508 (SDSS) sion disper ocity gas vel d Ionize HI and HII rotation velocities < HI > : V/>1 ! ...