Results 181 to 190 of about 62,204 (222)

Primordial Rotating Disk Composed of ≥15 Star Forming Clumps at Cosmic Dawn

Fujimoto S, Ouchi M, Kohno K, Valentino F, Giménez-Arteaga C, Brammer G, Furtak L, Kohandel M, Oguri M, Pallottini A, Richard J, Zitrin A, Bauer F, Boylan-Kolchin M, Dessauges-Zavadsky M, Egami E, Finkelstein S, Ma Z, Smail I, Watson D, Hutchison T, Rigby J, Welch B, Ao Y, Bradley L, Caminha G, Caputi K, Espada D, Endsley R, Fudamoto Y, González-López J, Hatsukade B, Koekemoer A, Kokorev V, Laporte N, Lee M, Magdis G, Ono Y, Rizzo F, Shibuya T, Shimasaku K, Sun F, Toft S, Umehata H, Wang T, Yajima H.   +45 more
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A binary merger product as the direct progenitor of a Type II-P supernova

Niu* Z, Sun* N, Zapartas* E, Souropanis D, Cui Y, Maund JR, Andrews JJ, Briel MM, Fraser M, Gossage S, Kruckow MU, Liotine C, Liu Z, Srivas PM, Teng E, Wang X, Yang Y, Liu J.   +17 more
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An Abrupt Change in the Disk Fraction of Free-Floating Planets at the Deuterium-Burning Ignition Limit

Rodrigues T, Bouy H, Raymond S, Martín E, Bertin E, Romero JO, Barrado D, Huélamo N, Tamura M, Roig NM, Galli P, Cuillandre J.   +11 more
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The dramatic transition of the extreme Red Supergiant WOH G64 to a Yellow Hypergiant

Munoz-Sanchez G, Kalitsounaki M, de Wit S, Antoniadis K, Bonanos A, Zapartas E, Boutsia K, Christodoulou E, Maravelias G, Soszyński I, Udalski A.   +10 more
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Handling of ‘Galaxy’ Photometry

1975
The properties of photographic images present certain well-known difficulties if accurate photometry is to be carried out. In order to derive light, curves of variable stars to the limit of long-exposure photographs, means have been specially developed to convert ‘Galaxy’ measures of 607 stars, including 150 photoelectric standards, on a total of 93 ...
P. A. Wayman, M. J. Stift
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Strömgren Photometry of Galaxies

1984
In preparation for a program of observations of different types of galaxies in distant clusters, we have calculated synthetic colors from the spectrophotometry of radio galaxies published by Yee and Oke (1978). The monochromatic magnitudes were calculated for the Stromgren v, b and y bandpasses shifted into the rest frame of each galaxy.
Karl D. Rakos, Norbert Fiala
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Surface photometry of galaxies

Publications of the Astronomical Society of the Pacific, 1988
Surface photometry of galaxies has undergone a great advance recently with the development of fast digital plate-measuring machines, powerful computers to process the huge amount of data from them, and efficient image-processing software. Further, the recent advent of charge-coupled devices (CCDs) has made the technique effective even with relatively ...
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CCD photometry of seyfert galaxies

Astrophysics and Space Science, 1989
Morphology and elliptically averaged luminosity profiles have been derived from CCD surface photometry of thirteen seyfert galaxies. ApparentV andI magnitudes,V-I colour index, as well as absolute Mv and MI magnitudes have been calculatedV andI luminosity profiles of Mk 10, Mk 79, Mk 358, Mk 618, Mk 352, and Mk 110, are adjusted by the usual model ...
E. Mediavilla, M. G. Pastoriza, E. Battaner   +2 more
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Photometry of southern galaxies

Publications of the Astronomical Society of the Pacific, 1982
Multiaperture photoelectric V and (B-V) measurements of 74 southern galaxies are presented. The diaphragms of the indicated diameters, the number of nights on which observations were obtained, and the estimated internal accuracy of the data are also indicated. Thirty-five of the galaxies have no prior published photoelectric data, and several should be
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Deep photometry of spiral galaxies

Publications of the Pulkovo Observatory, 2022
In this study, we consider the potential of using deep photometry for exploring the structure of spiral galaxies. As a source of deep photometry, the modern DESI Legacy Imaging Surveys is chosen, with a wide coverage of the Northern hemisphere. Several examples of spiral galaxies with various structural features of low surface brightnesses are ...
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