Detected Supernovae . The search have produced till now the detections of 4 SNe. ... This result highlights the power of infrared monitoring in detecting Obscured SNe and indicates that optical surveys are probably missing a significant fraction of SNe, especially in obscured systems such as starburst galaxies. ... In Fig. we show the archival SOFI image of NGC3256 (left) and the first image obtained in 2001 (right) where SN2001db has been detected. ...

... Column 1 gives the object name from the Case or Markarian catalogs. ... For Markarian galaxies the errors of coordinates usually lie inside 2'' (Lipovetsky [ 1983 ]). Column 4 gives the eye-estimated apparent blue magnitudes according to the same sources. ... Other names of a galaxy we give in column 7. ... In column 3 we cite the original emission-line code of the galaxy for the strength of [O III ] doublet according to the Case catalog (s - strong, m - medium, w - weak). ...

Decomposition of Galaxy Images and Galaxy Rotation Curves Mosenkov A.V.*^, Savchenko S.S.*, Sotnikova N.Ya.* ... The DECA (DEComposition Analysis) code is designed to investigate images of galaxies in an automatic regime (using the simple 'bulge+disc' model) as well as in manual mode for more detailed images and/or for multicomponent structures. ... The GRCF package was created for performing the galaxies rotation curve decomposition using the models of the bulge, the disc, and the dark halo. ...

... 2000 . ... Abstract: I present the distribution of the brightest galaxies in the southern sky as obtained from the H I Parkes All-Sky Survey (HIPASS). ... A histogram of the systemic velocities of the brightest HIPASS galaxies is shown in Fig. ... It peaks, as expected, in the interval 800 to 2000 km/s. No bright galaxies were found with systemic velocities of less than -350 or more than 5500 km/s. Figure 2: Histogram of the H I systemic velocities of the brightest galaxies obtained from HIPASS. ...

The radial distribution of metallicity of star-forming galaxies in a galaxy cluster can inform us about the mass assembly and enrichment history of the galaxy cluster. ... Both galaxy clusters are cool-core clusters at redshift z т?? ... The gas-phase metallicity of star- forming galaxies in MACS1115+01 exhibit anti-correlation with projected distance т??0.15 ТБ 0.08 dex/Mpc, whereas the radial metallicity distribution of RXJ1532+30 is statistically flat (т??0.09 ТБ 0.12 dex/Mpc). ...

... Contacts . 2008: . Detection of two new LBV stars. In two exterior galaxies new luminous blue variable stars (LBV) were observed. ... Fast deceleration of rotation of a magnetic star with a strong field HD 37776. 31 years of observations of the magnetic star HD 37776 resulted in detecting deceleration of its axial rotation for 17.7 0.7s (dP/P = 4.0x10 -6 per year). ... It is the first case of magnetic deceleration detection for a chemically peculiar star on the main sequence. ... Archive . ...

Direct images gallery. Here we have presented some images obtained on SAO telescopes by using SCORPIO. ... NGC 6951 . ... This color image are combined from the frames in the filters V ("blue"), R ("green") and middle-band filter SED755 ("red"). ... The true color image is constructed from three frames in B (Texp=600 sec), V (Texp=480 sec) and R (Texp=400 sec) filters. ... The true color image is constructed from three frames in B (Texp=180 sec), V (Texp=120 sec) and R (Texp=90 sec) filters. ...

Peremennye Zvezdy ( Variable Stars ) 26 , No. ... The light and colour curves are typical for this class of objects, the absolute magnitude at maximum and decline rate are in agreement with the relationship between these parameters established for SNe Ia. SN 2004fu was discovered by Arbour (2004) on unfiltered CCD images taken with a 0.3-m Schmidt-Cassegrain reflector on 2004 November 4.87 (approximately at 16 8) and 5.81 (approximately at 16 5). ... 2004). ... 0.03 . ... C60 . ...

... In this paper we present the results of detailed B, V, R, I, and H study of the isolated nearby blue compact dwarf (BCD) galaxy NGC6789. Judging from the literature the observed galaxy has not been resolved into stars up to now. ... The distance of the galaxy, estimated from the tip of the red giant branch (TRGB) is 2.1 Mpc which places NGC6789 close to the Local Group. ... Key words: nearby galaxies: dwarf galaxies (NGC 6789): distance moduli: star content . ... Distance. ...

... Initially SAI Supernova Catalogue was presented in the form of filebased system. ... The current version of SAI Supernova Catalogue presents data on supernovae together with data on their parent galaxies. ... The main source of data for the galaxies was LEDA database. ... In some cases our data were compared with the ones from the Asiago Supernova Catalogue and from List of Supernovae at Harvard-Smithsonian Center for Astrophysics, but the compilation of our Catalogue is carried out independently. ...

... All Sky Survey 2. Galaxy Environment Survey 3. ... Deep Strip Survey 5. Very Deep Survey Proposed Surveys 1. ... Very Deep Survey Galaxies and Environment ЇExamine the properties of galaxies w/i a variety of environments ЇIncludes groups, clusters, and isolated galaxies ЇHIMF to =5x106 Mo within groups ЇDetect HVCs with v=25 km/s Galaxies and Environment Regions to be studied: ЇVirgo Cluster ЇCanes Venatici ЇAround large, local galaxies ЇAround dwarf groups Galaxies and ...

... Colours of stars and galaxies hold information on intrinsic and extrinsic parameters, such as stellar temperatures and galaxy populations, selective absorption and colour changes due different dust contents and inclination angles of galaxies, as well as galaxy redshifts and evolution. ... The colour magnitude diagram of 65000 galaxies to which all above-mentioned quantities and others contribute can only be explained by comparison with simulations. ... Colours are also of technical help. ...

The problem of solar wind data correlation for the observations onboard several spacecraft is very important for three points of view: . ... This problem is studied now in detail by systematic determination of ion flux and ion velocity data correlations by INTERBALL-1 (IKI group), WIND and IMP 8 (both - MIT group). ... Solar wind plasma correlation lengths from IMP 8, WIND and INTERBALL-1. ... Correlation of solar wind observations onboard several spacecraft: INTERBALL-1, IMP 8 and WIND data. ...

... A model for the chemical evolution of a disk galaxy is presented. The model reproduces all the basic . ... investigations of the star formation history. ... the galaxyЫand incorporating a delay in the onset of star formation make it possible to model different scenar- . ios for the evolution of a galaxy's luminosity. ... evolution of massive galaxies. ... of reconstructing the star-formation history and galactic luminosity from observations of galaxies at different . ...

... The Astronomical Society of the Pacific (ASP) presented Priscilla and Bart Bok Awards to two high School Seniors at the Intel International Science and Engineering Fair held May 10 to 15 in Reno this year. ... The Bok prize is named for Bart and Priscilla Bok. ... About 10 years ago, at the suggestion of the American Astronomical Society, the activities supported by the Bok Fund were expanded to include the joint sponsorship of an astronomy award at Intel Science and Education Fair. ...

Weak Lensing Constraints on Dark Matter Halos Tereasa Brainerd Institute for Astrophysical Research, Boston University, USA It is currently thought that all large galaxies reside within massive dark matter halos. Despite the apparent ubiquity of such halos and their importance for developing a complete picture of the history of galaxy formation, the characteristic parameters (e.g., total mass, physical extent, and shape) of these objects remain largely unconstrained at present. ...

... Starting from a grid of theoretical population synthesis models we constructed a set of model galaxies with a distribution of ages, metallicities and intrinsic reddening. ... We propose an optimization technique that combines active learning with an instance-based machine learning algorithm. ... In order to solve the problem more efficiently, we pose it as a learning problem, where a learning algorithm learns the reddening parameters , and with a forward model we compute . ... Let be the test set. ...

... Gravitational wave search provides insights into galaxy evolution and mergers . ... milky way . ... Astronomy for Kids . ... Has dark matter ever been detected in or around the Milky Way Galaxy? ... While some scientists claim theyт??ve seen evidence of a т??windт?? of dark-matter particles, most members of the astronomy community believe this was a false detection and direct observation of this mysterious material hasnт??t happened yet. ... Get instant access to subscriber content on Astronomy.com!...

... Clustering of AGN and QSOs at z=1 . Using galaxies from the DEEP2 Redshift Survey and AGN from the AEGIS/Chandra survey and QSOs from SDSS, I present the cross-correlation function of AGN/QSOs and 'normal' galaxies at z=1. Using the known clustering of DEEP2 galaxies, this leads to an estimate of the bias and typical host dark matter halo mass of AGN/QSOs as a function of X-ray luminosity, which constrains AGN formation models. oral . ... Tuesday: AGN correlation functions, LSS, environments . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Colin Johnston . ... Our Galaxy . ... To locate it, look along the imaginary line between the two end stars on the leading edge of the PloughтАЩs blade (Merak and Dubhe) and Polaris (the North Star), the galaxy M82 (also known as the Cigar Galaxy) along with its companion M81, lies just off this line about a third of the way between the Plough and Polaris. ?а?аAs usual, the supernova is far brighter than its home galaxy, appearing as an extra star. ...