Morphology Kinematics And Star Formation Across The Hubble Sequence Of Galaxies

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Morphology, Kinematics and Star Formation Across the Hubble Sequence of Galaxies

Author : Santiago Erroz-Ferrer
Publisher : Springer
ISBN 13 : 3319263986
Total Pages : 207 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis Morphology, Kinematics and Star Formation Across the Hubble Sequence of Galaxies by : Santiago Erroz-Ferrer

Download or read book Morphology, Kinematics and Star Formation Across the Hubble Sequence of Galaxies written by Santiago Erroz-Ferrer and published by Springer. This book was released on 2015-11-21 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis discusses the evolution of galaxies through the study of the morphology, kinematics, and star formation properties of a sample of nearby galaxies. The main body of the thesis describes the kinematic observations with the GHaFAS Fabry-Perot instrument on the William Herschel Telescope of a sample of 29 spiral galaxies. The work is closely related to the Spitzer Survey of Stellar Structure in Galaxies, and uses the mid-infrared data of that survey to determine key parameters of the galaxies studied. From these data, important results are obtained on streaming and other non-circular motions in galaxies, on the distribution and rates of star formation, and on how correlations of these parameters and of the rotation curve shape with basic galaxy parameters yield clues on the evolutionary processes taking place in disk galaxies.

Unveiling Galaxies

Author : Jean-René Roy
Publisher : Cambridge University Press
ISBN 13 : 1108417019
Total Pages : 311 pages
Book Rating : 4.1/5 (84 download)

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Book Synopsis Unveiling Galaxies by : Jean-René Roy

Download or read book Unveiling Galaxies written by Jean-René Roy and published by Cambridge University Press. This book was released on 2018 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thought provoking study of the powerful impact of images in guiding astronomers' understanding of galaxies through time.

The Kiloparsec-Scale Structure and Kinematics of High-Redshift Star-Forming Galaxies

Author : David R. Law
Publisher : Universal-Publishers
ISBN 13 : 1599426919
Total Pages : 252 pages
Book Rating : 4.5/5 (994 download)

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Book Synopsis The Kiloparsec-Scale Structure and Kinematics of High-Redshift Star-Forming Galaxies by : David R. Law

Download or read book The Kiloparsec-Scale Structure and Kinematics of High-Redshift Star-Forming Galaxies written by David R. Law and published by Universal-Publishers. This book was released on 2008-09 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the spatially resolved properties of star-forming galaxies at redshift z 2 - 3 on scales 1 kpc using a combination of morphological and kinematic analyses in an effort to characterize the major mechanisms of galaxy formation in the young universe. Using a sample of 216 galaxies which have been spectroscopically confirmed to lie between redshifts z = 1.8 - 3.4 in the GOODS-N field we demonstrate that rest-UV morphology (as seen by the Hubble Space Telescope) is statistically uncorrelated with physical properties such as star formation rate and is therefore unable to support the hypothesis that the prevalence of irregular morphologies indicates a high major merger fraction. Further, we present a sample of 13 galaxies observed with the OSIRIS integral field spectrograph and the Keck laser-guide star adaptive optics system which demonstrate the prevalence of high velocity dispersions 80 km/s and generally little in the way of spatially resolved velocity gradients, inconsistent with favored rotating disk models. We discuss the implications of these results for galaxy formation models, including gas accretion via cold flows and gravitational instability of early gas-rich galactic disks. There is some evidence for a trend towards stronger rotational signatures in galaxies with more massive stellar populations.

Fundamentals of Galaxy Dynamics, Formation and Evolution

Author : Ignacio Ferreras
Publisher : UCL Press
ISBN 13 : 1911307614
Total Pages : 200 pages
Book Rating : 4.9/5 (113 download)

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Book Synopsis Fundamentals of Galaxy Dynamics, Formation and Evolution by : Ignacio Ferreras

Download or read book Fundamentals of Galaxy Dynamics, Formation and Evolution written by Ignacio Ferreras and published by UCL Press. This book was released on 2019-04-02 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Galaxies, along with their underlying dark matter halos, constitute the building blocks of structure in the Universe. Of all fundamental forces, gravity is the dominant one that drives the evolution of structures from small density seeds at early times to the galaxies we see today. The interactions among myriads of stars, or dark matter particles, in a gravitating structure produce a system with fascinating connotations to thermodynamics, with some analogies and some fundamental differences. Ignacio Ferreras presents a concise introduction to extragalactic astrophysics, with emphasis on stellar dynamics, and the growth of density fluctuations in an expanding Universe. Additional chapters are devoted to smaller systems (stellar clusters) and larger ones (galaxy clusters). Fundamentals of Galaxy Dynamics, Formation and Evolution is written for advanced undergraduates and beginning postgraduate students, providing a useful tool to get up to speed in a starting research career. Some of the derivations for the most important results are presented in detail to enable students appreciate the beauty of maths as a tool to understand the workings of galaxies. Each chapter includes a set of problems to help the student advance with the material.

Galaxy Formation and Evolution

Author : Houjun Mo
Publisher : Cambridge University Press
ISBN 13 : 0521857937
Total Pages : 841 pages
Book Rating : 4.5/5 (218 download)

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Book Synopsis Galaxy Formation and Evolution by : Houjun Mo

Download or read book Galaxy Formation and Evolution written by Houjun Mo and published by Cambridge University Press. This book was released on 2010-05-20 with total page 841 pages. Available in PDF, EPUB and Kindle. Book excerpt: A coherent introduction for researchers in astronomy, particle physics, and cosmology on the formation and evolution of galaxies.

Galaxy Masses as Constraints of Formation Models (IAU S311)

Author : Michele Cappellari
Publisher : Cambridge University Press
ISBN 13 : 9781107078697
Total Pages : 0 pages
Book Rating : 4.0/5 (786 download)

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Book Synopsis Galaxy Masses as Constraints of Formation Models (IAU S311) by : Michele Cappellari

Download or read book Galaxy Masses as Constraints of Formation Models (IAU S311) written by Michele Cappellari and published by Cambridge University Press. This book was released on 2015-04-30 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bringing together theorists, observers and instrumentation specialists, IAU Symposium 311 provides an overview of the techniques used to measure the masses of stars, gas and dark matter in galaxies, and explores what these mass determinations tell us about galaxy evolution. A key advance in recent years has been the enrichment of studies of the luminosity evolution of galaxies with determinations of their stellar or total masses from dynamical analyses using stellar populations, stellar or gaseous dynamical models, and weak or strong lensing. This volume addresses some of the fundamental questions in the field: what key observables can be robustly reproduced by the models? How should existing and new instrumentation be optimized for galaxy evolution studies? And, what future observations would be most useful to constrain the models? IAU S311 offers a valuable insight into this rapidly developing and interdisciplinary area of study, for researchers and graduate students.

Knowledge Discovery in Big Data from Astronomy and Earth Observation

Author : Petr Skoda
Publisher : Elsevier
ISBN 13 : 0128191554
Total Pages : 474 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Knowledge Discovery in Big Data from Astronomy and Earth Observation by : Petr Skoda

Download or read book Knowledge Discovery in Big Data from Astronomy and Earth Observation written by Petr Skoda and published by Elsevier. This book was released on 2020-04-10 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge Discovery in Big Data from Astronomy and Earth Observation: Astrogeoinformatics bridges the gap between astronomy and geoscience in the context of applications, techniques and key principles of big data. Machine learning and parallel computing are increasingly becoming cross-disciplinary as the phenomena of Big Data is becoming common place. This book provides insight into the common workflows and data science tools used for big data in astronomy and geoscience. After establishing similarity in data gathering, pre-processing and handling, the data science aspects are illustrated in the context of both fields. Software, hardware and algorithms of big data are addressed. Finally, the book offers insight into the emerging science which combines data and expertise from both fields in studying the effect of cosmos on the earth and its inhabitants. - Addresses both astronomy and geosciences in parallel, from a big data perspective - Includes introductory information, key principles, applications and the latest techniques - Well-supported by computing and information science-oriented chapters to introduce the necessary knowledge in these fields

Atlas of Galaxies

Author : Ronald J. Buta
Publisher : Cambridge University Press
ISBN 13 : 0521820480
Total Pages : 13 pages
Book Rating : 4.5/5 (218 download)

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Book Synopsis Atlas of Galaxies by : Ronald J. Buta

Download or read book Atlas of Galaxies written by Ronald J. Buta and published by Cambridge University Press. This book was released on 2007-03-08 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: New illustrated atlas on modern galaxy classification for astronomy researchers, students, and amateurs.

The Realm of the Nebulae

Author : Edwin Powell Hubble
Publisher : Yale University Press
ISBN 13 : 9780300025002
Total Pages : 264 pages
Book Rating : 4.0/5 (25 download)

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Book Synopsis The Realm of the Nebulae by : Edwin Powell Hubble

Download or read book The Realm of the Nebulae written by Edwin Powell Hubble and published by Yale University Press. This book was released on 1982-01-01 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: No modern astronomer made a more profound contribution to our understanding of the cosmos than did Edwin Hubble, who first conclusively demonstrated that the universe is expanding. Basing his theory on the observation of the change in distanct galaxies, called red shift, Hubble showed that this is a Doppler effect, or alteration in the wavelength of light, resulting from the rapid motion of celestial objects away from Earth. In 1935, Hubble described his principal observations and conclusions in the Silliman lectures at Yale University. These lectures were published the following year as "The Realm of the Nebulae," which quickly became a classic work.

Dynamical Evolution of Galaxies

Author : Xiaolei Zhang
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110527421
Total Pages : 338 pages
Book Rating : 4.1/5 (15 download)

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Book Synopsis Dynamical Evolution of Galaxies by : Xiaolei Zhang

Download or read book Dynamical Evolution of Galaxies written by Xiaolei Zhang and published by Walter de Gruyter GmbH & Co KG. This book was released on 2017-12-04 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research monograph presents a new dynamical framework for the study of secular morphological evolution of galaxies along the Hubble sequence. Classical approaches based on Boltzmann’s kinetic equation, as well as on its moment-equation descendants the Euler and Navier-Stokes fluid equations, are inadequate for treating the maintenance and long-term evolution of systems containing self-organized structures such as galactic density-wave modes. A global and synthetic approach, incorporating correlated fluctuations of the constituent particles during a nonequilibrium phase transition, is adopted to supplement the continuum treatment. The cutting-edge research combining analytical, N-body simulational, and observational aspects, as well as the fundamental-physics connections it provides, make this work a valuable reference for researchers and graduate students in astronomy, astrophysics, cosmology, many-body physics, complexity theory, and other related fields. Contents Dynamical Drivers of Galaxy Evolution N-Body Simulations of Galaxy Evolution Astrophysical Implications of the Dynamical Theory Putting It All Together Concluding Remarks Appendix: Relation to Kinetics and Fluid Mechanics

Introduction to Galaxy Formation and Evolution

Author : Andrea Cimatti
Publisher : Cambridge University Press
ISBN 13 : 1107134765
Total Pages : 587 pages
Book Rating : 4.1/5 (71 download)

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Book Synopsis Introduction to Galaxy Formation and Evolution by : Andrea Cimatti

Download or read book Introduction to Galaxy Formation and Evolution written by Andrea Cimatti and published by Cambridge University Press. This book was released on 2019-10-17 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive examination of nearly fourteen billion years of galaxy formation and evolution, from primordial gas to present-day galaxies.

The Properties of Star-Forming Galaxies at Z~2

Author : Dawn Erb
Publisher : Universal-Publishers
ISBN 13 : 1581122977
Total Pages : 168 pages
Book Rating : 4.5/5 (811 download)

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Book Synopsis The Properties of Star-Forming Galaxies at Z~2 by : Dawn Erb

Download or read book The Properties of Star-Forming Galaxies at Z~2 written by Dawn Erb and published by Universal-Publishers. This book was released on 2005 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the properties of star-forming galaxies at redshift z 2, an era in which a substantial fraction of the stellar mass in the universe formed. Using 114 near-IR spectra of the H-alpha and [N II] emission lines and model spectral energy distributions fit to rest-frame UV through IR photometry, we examine the galaxies' star formation properties, dynamical masses and velocity dispersions, spatially resolved kinematics, outflow properties, and metallicities as a function of stellar mass and age. While the stellar masses of the galaxies in our sample vary by a factor of 500, dynamical masses from H-alpha velocity dispersions and indirect estimates of gas masses imply that the variation of stellar mass is due as much to the evolution of the stellar population and the conversion of gas into stars as to intrinsic differences in the total masses of the galaxies. About 10% of the galaxies are apparently young starbursts with high gas fractions, caught just as they have begun to convert large amounts of gas into stars. Using the [N II]/H-alpha ratio of composite spectra to estimate the average oxygen abundance, we find a monotonic increase in metallicity with stellar mass. From the estimated gas fractions, we conclude that the observed mass-metallicity relation is primarily driven by the increase in metallicity as gas is converted to stars. The picture that emerges is of galaxies with a broad range in stellar population properties, from young galaxies with ages of a few tens of Myr, stellar masses M 10 DEGREES9 Msun, and metallicities Z 1/3 Zsun, to massive objects with M* 10 DEGREES11 Msun, Z Zsun, and ages as old as the universe allows. All, however, are rapidly star-forming, power galactic-scale outflows, and have masses in gas and stars of at least 10 DEGREES10 Msun, in keeping with their likely role as the progenitors of elliptical galaxies

Cosmic Collisions

Author : Lars Lindberg Christensen
Publisher : Springer Science & Business Media
ISBN 13 : 0387938559
Total Pages : 143 pages
Book Rating : 4.3/5 (879 download)

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Book Synopsis Cosmic Collisions by : Lars Lindberg Christensen

Download or read book Cosmic Collisions written by Lars Lindberg Christensen and published by Springer Science & Business Media. This book was released on 2010-04-07 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: Like no other telescope ever invented, the NASA/ESA Hubble Space Telescope has given us magnificent high resolution views of the gigantic cosmic collisions between galaxies. Hubble's images are snapshots in time and catch the colliding galaxies in different stages of collision. Thanks to a new and amazing set of 60 Hubble images, for the first time these different stages can be put together to form a still-frame movielike montage showing the incredible processes taking place as galaxies collide and merge. The significance of these cosmic encounters reaches far beyond aesthetics. Galaxy mergers may, in fact, be some of the most important processes that shape our universe. Colliding galaxies very likely, hold some of the most important clues to our cosmic past and to our destiny. It now seems clear that the Milky Way is continuously undergoing merging events, some small scale, others on a gigantic scale. And the importance of this process in the lives of galaxies is much greater than what was previously thought.

The Magellanic System (IAU S256)

Author : International Astronomical Union. Symposium
Publisher : Cambridge University Press
ISBN 13 : 9780521889872
Total Pages : 552 pages
Book Rating : 4.8/5 (898 download)

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Book Synopsis The Magellanic System (IAU S256) by : International Astronomical Union. Symposium

Download or read book The Magellanic System (IAU S256) written by International Astronomical Union. Symposium and published by Cambridge University Press. This book was released on 2009-04-16 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides the most complete and up-to-date account of our understanding of the Magellanic Clouds and the astrophysical processes within them.

Toward a New Millennium in Galaxy Morphology

Author : David L. Block
Publisher : Springer Science & Business Media
ISBN 13 : 9401141142
Total Pages : 798 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Toward a New Millennium in Galaxy Morphology by : David L. Block

Download or read book Toward a New Millennium in Galaxy Morphology written by David L. Block and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: South Africa - a land of paradigm shifts. A land where we are willing to leave behind the old, to bravely accept the new. What do we need to exit the dark ages in the morphology of galaxies? How prevalent is the cherishing of old concepts? Traditional morphology has been `mask-oriented', focusing on masks of dust and gas which may constitute only 5 percent of the dynamical mass of a galaxy. Some of the world's foremost astronomers flew to South Africa to address morphologically related issues at an International Conference, the proceedings of which are contained in this volume. Examine predicted extinction curves for primordial dust at high redshift. Stars evolve; why not dust? Read about the breakdown of the Hubble sequence at a redshift of one. Explore the morphology of rings; the mysteries of metal-rich globular clusters; vigorous star-formation in the Large Magellanic Cloud; the world of secular evolution, where galaxies change their shapes within one Hubble time. And much more. Examine a new kinematical classification scheme of the unmasked, dust-penetrated near-infrared images of spiral galaxies. This volume contains over 80 refereed contributions (including 18 in-depth keynote review articles), 40 pages of questions and answers, a panel discussion transcribed from tape and 24 colour plates. The volume is unique in that contributions from both high and low redshift experts are represented at a level readily accessible to postdoctoral students entering the exciting world of morphology - whether it be of the local, or more distant, Universe.

The Most Interesting Galaxies in the Universe

Author : Joel L Schiff
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1643270044
Total Pages : 164 pages
Book Rating : 4.6/5 (432 download)

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Book Synopsis The Most Interesting Galaxies in the Universe by : Joel L Schiff

Download or read book The Most Interesting Galaxies in the Universe written by Joel L Schiff and published by Morgan & Claypool Publishers. This book was released on 2018-09-13 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prior to the 1920s it was generally thought, with a few exceptions, that our galaxy, the Milky Way, was the entire Universe. Based on the work of Henrietta Leavitt with Cepheid variables, astronomer Edwin Hubble was able to determine that the Andromeda Galaxy and others had to lie outside our own. Moreover, based on the work of Vesto Slipher, involving the redshifts of these galaxies, Hubble was able to determine that the Universe was not static, as had been previously thought, but expanding. The number of galaxies has also been expanding, with estimates varying from 100 billion to 2 trillion. While every galaxy in the Universe is interesting just by its very fact of being, the author has selected 51 of those that possess some unusual qualities that make them of some particular interest. These galaxies have complex evolutionary histories, with some having supermassive black holes at their core, others are powerful radio sources, a very few are relatively nearby and even visible to the naked eye, whereas the light from one recent discovery has been travelling for the past 13.4 billion years to show us its infancy, and from a time when the Universe was in its infancy. And in spite of the vastness of the Universe, some galaxies are colliding with others, embraced in a graceful gravitational dance. Indeed, as the Andromeda Galaxy is heading towards us, a similar fate awaits our Milky Way. When looking at a modern image of a galaxy, one is in awe at the shear wondrous nature of such a magnificent creation, with its boundless secrets that it is keeping from us, its endless possibilities for harboring alien civilizations, and we remain left with the ultimate knowledge that we are connected to its glory.

A Multi-Wavelength Census of Star Formation at Redshift Z~2

Author : Naveen Reddy
Publisher : Universal-Publishers
ISBN 13 : 1581123310
Total Pages : 208 pages
Book Rating : 4.5/5 (811 download)

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Book Synopsis A Multi-Wavelength Census of Star Formation at Redshift Z~2 by : Naveen Reddy

Download or read book A Multi-Wavelength Census of Star Formation at Redshift Z~2 written by Naveen Reddy and published by Universal-Publishers. This book was released on 2006 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: We examine the census of star-forming galaxies and their extinction properties at redshift z 2, when a large fraction of the stellar mass in the universe formed. We find a good agreement between the X-ray, radio, and de-reddened UV estimates of the average star formation rate (SFR) for our sample of z 2 galaxies of 50 Msun/yr, indicating that the locally calibrated SFR relations appear to be statistically valid from redshifts 1.5