Download or read book A Multiwavelength and Multiscale Study of Luminous and Ultraluminous Infrared Galaxies in the Local Universe written by and published by . This book was released on 2015 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Multiwavelength Study of ultra luminous Infrared Galaxies in the Cosmos Field written by Jeyhan Sevim Kartaltepe and published by . This book was released on 2009 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the results of a multiwavelength study of the role mergers and (U)LIRGs have played in galaxy evolution using the COSMOS data set. First, we investigate the evolution of the galaxy pair fraction out to z = 1.2 by selecting pairs where both members are > L⋆V and have projected separations
Download or read book A VLT SINFONI Study of Local Luminous and Ultraluminous Infrared Galaxies written by and published by . This book was released on 2014 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Active Galaxies written by Ece Kilerci Eser and published by . This book was released on 2014 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Mid infrared Study of Local Luminous Infrared Galaxies written by Tanio Díaz Santos and published by . This book was released on 2009 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A mid infrared study of local luminous infrared galaxies written by Tanio Díaz Santos and published by . This book was released on 2009 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multiwavelength Studies of Ultraluminous IRAS Galaxies written by and published by . This book was released on 1995 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Color magnitude Relation and Morphology of Ultraluminous Infrared Galaxies from Z 0 to Z 1 written by Yuxi Chen and published by . This book was released on 2011 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultraluminous infrared galaxies (ULIRGs) are among the most powerful galaxies and play an important role in galaxy formation and evolution. In this dissertation, I present by far the most detailed and latest studies of ULIRGs both in the nearby universe and at epochs only half of today's universe's age, through their color-magnitude relation (CMR) and morphology. I studied the most luminous local ULIRGs in the SDSS, and found that local ULIRGs are optically luminous, on average 1 magnitude brighter than field galaxies, and they are as blue as the blue cloud in the color-magnitude diagram of galaxies. Only few ULIRGs appear in the green valley, the low density region between the red sequence and blue cloud, and none of which harbors an AGN. Therefore, we are not witnessing the AGN quenching of star formation, and the blue colors of ULIRGs is consistent with a working hypothesis in which the dust geometry is patchy and blue lights originate from unshielded stellar components, many of which are at large distances. We also imaged nine most luminous ULIRGs at z ~ 1 using HST in ACS/F814W and NICMOS2/F160W filters. The z ~ 1 ULIRGs, unlike the z ~ 0 ULIRGs, appear to be more concentrated in the green valley. The concentration of z ~ 1 ULIRGs in the green valley is possible due to the color selection in studying the CMR. Quantitative morphology measurements have been widely used in describing galaxy morphology and classifying galaxies, but their limitations have not been systematically studied. In this dissertation I present detailed studies of the limitations of non-parametric quantitative morphology measurements, the Gini coefficient (G) and M 20. Both z ~ 0 and z ~ 1 ULIRGs distribute heterogeneously in G - M20 space, which is unexpected from the proposed effectiveness of G -M 20 in selecting merging galaxies. I performed a series simulations, which shows that seen against higher background noise, G decreases and M20 increases systematically. Observationally G and M20 are also more sensitive to certain merging stages, consistent with the findings from other numerical simulations. As a conclusion, cautions must be made when applying the quantitative morphology measurements. There are strong color gradients across almost all z ~ 0 and z ~ 1 ULIRGs. Benefited from high spatial resolutions of HST, I developed a new technique to investigate the pixel-based color distribution and produced pixel-based color-magnitude diagrams (pCMDs) for the z ~ 1 ULIRGs. A unique feature in the pCMD, "horizontal blue shelf", has been discovered among all z ~ 1 ULIRGs, which is consistent with typical colors of today's disk, and can be modeled by young stellar populations with an age between 10 Myr and 500 Myr with moderate extinction.
Download or read book A Multi wavelength Study of Twelve Low Surface Brightness Galaxies written by Götz Hoeppe and published by . This book was released on 1993 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantifying the AGN driven Ionised Outflows in Local Ultra luminous Infrared Galaxies written by Robert A. W. Spence and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physics of Ultra Luminous Infrared Galaxies written by Hazel Marina Sopp and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radio and Millimeter Studies of Luminous Infrared Galaxies written by and published by . This book was released on 2009 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterising Ultraluminous Infrared Galaxies in the Early Universe written by C. M. Casey and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book X ray Studies of Ultraluminous Infrared Galaxies Observed with XMM Newton written by Ralf Keil and published by . This book was released on 2006 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book H2 Spectral Study of Photodissociation Regions PDR for 15 Ultraluminous Infrared Galaxies ULIRGS from Spitzer Infrared Spectrograph IRS Data written by Eunjeong Son and published by . This book was released on 2007 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pathways to Discovery in Astronomy and Astrophysics for the 2020s written by National Academies of Sciences, Engineering, and Medicine and published by . This book was released on 2022-08-04 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: The steering committee was specifically asked to (1) provide an overview of the current state of astronomy and astrophysics science, and technology research in support of that science, with connections to other scientific areas where appropriate; (2) identify the most compelling science challenges and frontiers in astronomy and astrophysics, which shall motivate the committee’s strategy for the future; (3) develop a comprehensive research strategy to advance the frontiers of astronomy and astrophysics for the period 2022-2032 that will include identifying, recommending, and ranking the highest-priority research activities; (4) utilize and recommend decision rules, where appropriate, that can accommodate significant but reasonable deviations in the projected budget or changes in urgency precipitated by new discoveries or unanticipated competitive activities; (5) assess the state of the profession, including workforce and demographic issues in the field, identify areas of concern and importance to the community, and where possible, provide specific, actionable, and practical recommendations to the agencies and community to address these areas. This report proposes a broad, integrated plan for space- and ground-based astronomy and astrophysics for the decade 2023-2032. It also lays the foundations for further advances in the following decade.
Download or read book Structure and Properties of Nearby Galaxies written by Elly M. Berkhuijsen and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
