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Intermediate Band Surface Photometry Of Elliptical Galaxies
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Book Synopsis Intermediate Band Surface Photometry of Elliptical Galaxies by : Robert J. Boyle
Download or read book Intermediate Band Surface Photometry of Elliptical Galaxies written by Robert J. Boyle and published by . This book was released on 1981 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CCD Surface Photometry of Elliptical Galaxies by : R. I. Jedrzejewski
Download or read book CCD Surface Photometry of Elliptical Galaxies written by R. I. Jedrzejewski and published by . This book was released on 1985 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Resolution Surface Photometry of Elliptical Galaxies by : Tod Richard Lauer
Download or read book High Resolution Surface Photometry of Elliptical Galaxies written by Tod Richard Lauer and published by . This book was released on 1987 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 2-d CCD Surface Photometry of Elliptical Galaxies by : Kenneth E. Kokko
Download or read book 2-d CCD Surface Photometry of Elliptical Galaxies written by Kenneth E. Kokko and published by . This book was released on 1988 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Atlas of Selected Galaxies by : Sunggyu Takase
Download or read book An Atlas of Selected Galaxies written by Sunggyu Takase and published by Taylor & Francis. This book was released on 2023-01-06 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is only several decades since galaxies were recognized as huge aggregations of matter in the universe which consist of myriads of stars and vast clouds of gas. The wide variety of shapes of galaxies is one of the wonders of the universe. Attempts to classify galaxies have continued since an early stage of study, when they were still called nebulae. The first step towards classification was a grouping of the patterns; the second step a systematic arrangement of various morphological types. Classification schemes that are in present use, such as Hubble's, are in the second group. These classifications are usually based on pattern recognition after a visual inspection of the photographic image of the galaxy, and is therefore qualitative and more or less subjective. Using surface photometry of galaxies, a technique which has advanced remarkably in recent years, photographs of galaxies taken in several colour bands can now be efficiently reduced to photometric data. Analysis of this data gives quantitative information on the luminosity and colour distribution for every element of galaxies. The Atlas of Selected Galaxies presents photographs taken with the Okayama 188 cm reflector and the Kiso 105 cm Schmidt telescope for the purpose of photometric analysis. A large number of illustration are given to demonstrate the way in which photographs of galaxies are reduced into quantitative data. These illustrations also show some representative results obtained in the course of the editors' work on the quantitative classification of galaxies. Part I, General Description of the Classification and Photometric Analyses, includes eight sections, whose authors all shared the photometric work and prepared the photographs. In Part II, The Atlas, the illustrations are arranged in sections corresponding to those in Part I. Part III includes tables of data for the atlas.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Imaging and Spectroscopic Study of Low and Intermediate Power Radio Galaxies by : Kathleen Ann Ebneter
Download or read book An Imaging and Spectroscopic Study of Low and Intermediate Power Radio Galaxies written by Kathleen Ann Ebneter and published by . This book was released on 1989 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Surface Photometry of Early-type Galaxies by : S. G. Djorgovski
Download or read book Surface Photometry of Early-type Galaxies written by S. G. Djorgovski and published by . This book was released on 1985 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Evolution of Cluster Elliptical Galaxies by : Luis Felipe Barrientos
Download or read book The Evolution of Cluster Elliptical Galaxies written by Luis Felipe Barrientos and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis work focuses on the understanding of the formation and subsequent evolution of the population of elliptical galaxies in rich galaxy clusters. Elliptical galaxies define a unique and simple laboratory to study the process of galaxy formation and the evolution of stellar populations. Observational data, including a sample of eight clusters observed at Cerro Tololo Inter-American Observatory (CTIO) and ten clusters observed with the Hubble Space Telescope (HST), have been used to conduct several related studies. A surface brightness analysis of the ellipticals in the cores of ten galaxy clusters observed with HST shows that elliptical galaxies are well-represented by an 'r'1/4-law light profile and follow a well-defined relation in the magnitude/size plane, up to 'z' = 1.2. This relation shifts, on average, towards higher luminosities (or equivalently, to smaller sizes) with increasing redshift. If we assume that the size of these galaxies are fixed during the period from 'z' = 1.2 to the present, then these galaxies are evolving monotonically in luminosity. This luminosity evolution amounts to [Delta]'MB' = -1.2 at 'z' = 1.2, when compared to the galaxies in local clusters, and is consistent with that expected for an old and passively evolving stellar population. The luminosity functions for the red galaxies from the eight clusters in the CTIO sample show that are well-represented by a Schechter function, consistent with a single value for their characteristic magnitude (M*). When compared to local cluster luminosity functions, there is evidence for a brightening of a few tenths of a magnitude in M* (the exact value depends on the cosmology). For a low density universe, the brightening observed in the luminosity function, up to 'z' = 0.45, is consistent with that observed from the surface brightness analysis. The cluster elliptical galaxies from the CTIO sample, selected morphologically using a galaxy light profile fitting technique, define a very tight sequence in the colour/magnitude plane. All the clusters are consistent with having a single value for their intrinsic colour dispersions, [delta] = 0.06 ± 0.02, in the restframe ('U' - 'V')/' V' colour relation. These small colour dispersions imply the stars in these galaxies have a typical age dispersion from galaxy to galaxy of ~20% of their age at 'z' = 0.45. Similarly, when comparing the mean colour for the different clusters, it was found that they are consistent with having a single mean colour, ('V' - 'I') = 2.055 ± 0.028. The small dispersion in the mean colours is completely accounted for by sampling uncertainties. With the addition of 'K'-band photometry, and data for local ellipticals, it has been possible to determine the evolutionary vector in the restframe ('U' - 'V')/(' V' - 'H') colour plane from 'z' = 0.45 to 'z' = 0. Predictions of current models have been tested against this observed vector. Most of the more popular models have failed to account for this colour change, and only a more sophisticated model--including infall of primordial gas and chemical enrichment during the assembly of the stellar population--was able to reproduce the observed evolution. The observations in this work strongly suggest that these galaxies are old systems formed at high redshift. However, given the quantitative uncertainties in the observations, population synthesis models, cosmology, and uncertainties in how much synchronicity in formation is reasonable, the observations do not rule out scenarios involving formation at lower redshifts.
Book Synopsis Photometry of Elliptical Galaxies in Multiple Systems by : Sandra Moore Faber
Download or read book Photometry of Elliptical Galaxies in Multiple Systems written by Sandra Moore Faber and published by . This book was released on 1972 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Aspects of Galaxy Photometry by : Jean-Luc Nieto
Download or read book New Aspects of Galaxy Photometry written by Jean-Luc Nieto and published by Springer. This book was released on 2005-12-01 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structure and Dynamics of Elliptical Galaxies by : International Astronomical Union. Symposium
Download or read book Structure and Dynamics of Elliptical Galaxies written by International Astronomical Union. Symposium and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Procedure of Photometry for Elliptical Galaxies by : George O. Abell
Download or read book Procedure of Photometry for Elliptical Galaxies written by George O. Abell and published by . This book was released on 1966 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Fundamental Plane of Early-type Galaxies in the Intermediate Redshift Cluster CL1358+62 by : Daniel D. Kelson
Download or read book The Fundamental Plane of Early-type Galaxies in the Intermediate Redshift Cluster CL1358+62 written by Daniel D. Kelson and published by . This book was released on 1998 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Surface Brightness by : J. G. Hoessel
Download or read book The Surface Brightness written by J. G. Hoessel and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Array photometry of elliptical galaxies by : Robert W. Leach
Download or read book Array photometry of elliptical galaxies written by Robert W. Leach and published by . This book was released on 1987 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Surface-brightness Fluctuations in Elliptical Galaxies by : Marianne Stilling Sodemann
Download or read book Surface-brightness Fluctuations in Elliptical Galaxies written by Marianne Stilling Sodemann and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: