M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

... 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. ...

K-band Arcetri Obscured Supernova Search . What is the KAOSS Project? W hat is the KAOSS Project? Some recent surveys aimed at detecting Supernovae (SNe) in the optical have found that starburst galaxies do not show evidence for an enhanced SN rate, with respect to quiescent galaxies (Richmond et al. ... A similar result was obtained by Navasardyan et al. (2001) who looked for SNe in interacting galaxies, finding no evidence for correlations between SN rate and galaxy properties. ...

Welcome to the Starburst and Galaxy Evolution website.

... Welcome to GALAXY-"light", a project that is expected to produce a continuously growing atlas of "thumbnail" CCD galaxy images and that was specially conceived to be useful in amateur supernova surveys. ... All GALAXY-"light" images are obtained by ANTONIO JOSE CIDADAO, a Portuguese amateur living in Oeiras, member of APAA (Portuguese Association of Amateur Astronomers, one of the founders of the "Astro-Port" mailing list, and also subscriber of "AUDE", "MAPUG" and "SBIGUSER" mailing-lists. ...

Text of these problems is available also in other languages : . ... What can one see in the Moon's sky more often - the Sun or the Earth? ... There are about of 250 millions of stars in the elliptical galaxy M32 (a satellite of Andromeda galaxy). ... The masses of Capella's components. ... You are proposed to estimate the masses of Capella's components, using our observational data. ... A galaxy's mass. ... Estimate the mass of FGC 1908 and compare it to the mass of our galaxy. ...

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. ...

... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...

Next: Gravitational waves from supernova Previous: Amplitude Distribution . ... At these frequencies only rapidly rotating NS can generate periodical GW signal (Thorne, 1988[ 191 ]), whereas coalescence   of binary NS and supernova   explosions produce burst-like GW. ... As the closest GW sources are the strongest ones, we will consider Tully's Nearby Galaxy Catalog (Tully, 1988[ 194 ]) comprising 2367 galaxies from a sphere of 50 Mpc in radius. ... Gravitational waves from supernova explosions . ...

... According to the most popular cosmological paradigm, the greater part of the galaxy mass is accumulated in the dark matter halo. ... The polar ring galaxies (PRGs) reveal external rings or disks of gas, dust and stars rotating in a plane roughly perpendicular to the disk of the central galaxy. ... The shape of the dark halo in the model was chosen so as to achieve the best fit to the observed rotation of both galaxies themselves and their polar rings. ... The SPRC-7 galaxy. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Colour image of NGC 5128 galaxy, one of the closest radio galaxies to Earth. We have documented the supernova which occurred in this galaxy earlier this year. Images obtained using the 1 metre telescope at Sutherland Observatory in South Africa, operated by Las Cumbres Observatory. Further description of our work (1) . ... 2016 March 23rd . ... Last Revised: 2015 March 23rd . ...

... H.I.T.M.A.N. is a program that I have written to analyze transient host galaxies and obtain charateristics and properties of them. ... It determines physical, photometric, and cosmological properties of the host galaxies and can also correlate with transient properties. ... Any routine can be done stand alone instead of the full routine. ... The full details of the program will be described in Tucker et al 09a, and Tucker et al 09b, in prep. ...

A Massive Star Odyssey, from Main Sequence to Supernova Proceedings IAU Symposium No. 212, c 2002 IAU K.A. van der Hucht, A. Herrero & C. Esteban, eds. MRK 1087: a puzzling susp ected Wolf-Rayet galaxy ґ Cґsar Esteban, Angel R. Lґpez-Sґnchez e o a Instituto de Astrofґ ica de Canarias, 38200 - La Laguna, Tenerife, Spain is Mґnica Rodrґ uez o ig Instituto Nacional de Astronomґ , Optica y Electronica, Apdo. ... Mrk 1087 (distance = 111 Mpc) is a suspected Wolf-Rayet galaxy (Schaerer et al. ...

An image of the grand design of spiral galaxy M100 obtained with NASA's Hubble Space Telescope resolves individual stars within the majestic spiral arms. ... Hubble has the ability to resolve individual stars in other galaxies and measure accurately the light from very faint stars. This makes space telescope invaluable for identifying a rare class of pulsating stars, called Cepheid Variable stars embedded within M100's spiral arms. ... 617) 495-7062 . Fax: (617) 495-7356 . ...

... All the galaxies are divided into 4 groups depending on the environment type; every subsample contains more than 10 galaxies. ... An effect of environments is seen both for the nuclei and for the bulges: if we consider the clusters (Virgo and Ursa Ma jor) and group centers as dense environments and the field and group periphery as sparse environments, then in the dense environments the stellar populations of S0s are in average older by 4­5 Gyr than in the sparse ones. ...

... 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. ...

... Bojan Nikolic web pages (r. 329) . Galaxy Evolution . ... By comparing narrow band spectral line indices with recent models of simple stellar populations (SSPs) we investigate trends in the star formation history as a function of galaxy mass (velocity dispersion), density of environment and galactic radius. ... MJD of the SDSS observation of the galaxy . ... The history of star formation and mass assembly in early-type galaxies . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

... This represents the first HI selected sample covering the core and the outskirts of a local cluster of galaxies. ... Optically selected samples miss a considerable number of low luminosity, low surface brightness galaxies underestimating by almost a factor 2 the number of HI rich galaxies present in the cluster volume. ... Right: The g band luminosity function for galaxies in the A1367 volume as obtained from the optically (circles) and HI (histogram) selected sample. ...

... SN 2006GY: Brightest Supernova . ... 10.05.2007 . ... In fact, given its estimated distance of 240 million light-years, SN 2006gy was brighter than, and has stayed brighter longer than , any previously seen supernova. The Chandra observations in the lower right panel establish the supernova's x-ray brightness and lend strong evidence to the theory that SN 2006gy was the death explosion of a star well over 100 times as massive as the Sun. ... May 2007 . ... Publications with keywords: supernova . ...

... This supernova was discovered on April 6, 1998 on spectra obtained with 6m telescope of Special Astrophysical Observatory RAS (Kniazev et al. ... BVRI and H images were taken with the 1.52m EOCA telescope at Calar Alto on April 24, 1998. ... The available spectra for the SN, from April 6 and 19 taken with the 6m SAO Russian telescope and from May 26 with the NOT are shown in Figure 2. ... The spectra are typical of a type II supernova. ...