Download or read book The IRAS 1 JY Survey of Ultraluminous Infrared Galaxies written by Dong-Chan Kim and published by . This book was released on 1995 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultraluminous Infrared Galaxies written by Thomas W. Murphy and published by . This book was released on 2000 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Astrophysics Update 2 written by John Mason and published by Springer. This book was released on 2010-11-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Astrophysics Updates" is intended to serve the information needs of professional astronomers and postgraduate students about areas of astronomy, astrophysics and cosmology that are rich and active research spheres. Observational methods and the latest results of astronomical research are presented as well as their theoretical foundations and interrelations. The contributed commissioned articles are written by leading exponents in a format that will appeal to professional astronomers and astrophysicists who are interested in topics outside their own specific areas of research. This collection of timely reviews may also attract the interest of advanced amateur astronomers seeking scientifically rigorous coverage.
Download or read book On the Origin of the Radio Emission of Ultraluminous Infrared Galaxies written by 張敏悌 and published by . This book was released on 2005 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Star Formation Histories and Evolution of Ultraluminous Infrared Galaxies written by Javier Rodríguez Zaurín and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Molecular Gas Content of Ultraluminous Infrared Galaxies written by Stefano Venturini and published by . This book was released on 2004 with total page 146 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 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 Ultraluminous Infrared Galaxies and the Radio optical Correlation for Quasars written by Carol J. Lonsdale Persson and published by . This book was released on 19?? with total page 12 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 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 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 Clustering of Ultraluminous Infrared Galaxies in the Bo tes Field written by Roberto De Alba and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the nature and clustering of infrared (IR) galaxies at z~1.5-3 in a 9 deg2 region from the Spitzer Deep, Wide-Field Survey (SDWFS) and the MIPS (Multiband Imaging Photometer for SIRTF) AGN (Active Galactic Nuclei) and Galaxy Evolution Survey (MAGES), taken at the Space Infrared Telescope Facility (SITRF). Using a method developed by Huang et al., we identify stellar-dominated IR-luminous galaxies at 1.5 z 3 by selecting objects with characteristic infrared (3.6, 4.5, and 8.0 micron) flux ratios and 24 micron flux density (S(24) hereafter) 0.3 mJy. We compute the angular correlation function of this sample over scales of 0.001 - 1 deg. Assuming an empirical redshift distribution, we derive spatial correlation scale lengths, r0 = 7.65 " 0.9 h−1 Mpc for S(24) 0.3 mJy and 8.73 " 2.1 h-1 Mpc for S(24)> 0.5 mJy, with a possible scale length increase at higher 24 micron flux densities. We compare our sample to IRluminous, dust-obscured galaxies (DOGs) at this redshift selected on the basis of their large mid-infrared to visible flux ratio, and which are known to include AGN, objects presumably powered by supermassive black hole accretion. While the DOG sample includes objects with S(24)> 1 mJy, our IR-luminous, stellar-dominated sample contains few bright objects, and is approximately limited to S(24)
Download or read book The C II 158 Micron Line Deficit in Ultraluminous Infrared Galaxies Revisited written by and published by . This book was released on 2003 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a study of the [C II] 157.74-micrometer fine-structure line in a sample of 15 ultraluminous infrared (IR) galaxies using the Long Wavelength Spectrometer (LWS) on the Infrared Space Observatory (ISO). We confirm the observed order of magnitude deficit (compared to normal and starburst galaxies) in the strength of the [C II] line relative to the far-infrared (FIR) dust continuum emission found in our initial report, but here with a sample that is twice as large. This result suggests that the deficit is a general phenomenon affecting 4 out of 5 ULIRGs. We present an analysis using observations of generally acknowledged photodissociation region (PDR) tracers, which suggests that a high ultraviolet flux incident on a moderate density n PDR could explain the deficit. However, comparisons with other ULIRG observations, including, and 6.2-micrometer polycyclic aromatic hydrocarbon (PAH) emission, suggest that high PDRs alone cannot produce a self-consistent solution that is compatible with all of the observations. We propose that non-PDR contributions to the FIR continuum can explain the apparent [C II] deficiency.
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 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 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:
