Results 101 to 110 of about 3,105 (226)
Recent Star Formation in Very Luminous Infrared Galaxies [PDF]
, 2001 Among star forming galaxies, a spectral combination of a strong Hdelta line in absorption and a moderate [OII] emission has been suggested to be a useful method to identify dusty starburst galaxies at any redshift, on the basis of optical data alone.
Bressan, A. +2 more
openaire +2 more sources
First results from high redshift quasar searches in VIKING [PDF]
, 2012 This thesis presents the discovery of the first luminous z & 6.5 quasars in the VISTA kilo-degree Infrared Galaxy Survey (VIKING). After some basic quality control, quasar selection is investigated via use of initial data supplementedwith ...
Findlay, Joseph
core
The Astrophysical JournalWe use the CN/CO intensity ratio to obtain the dense gas fraction, f _dense , for a sample of 16 ultraluminous and luminous infrared (IR) galaxies and compare f _dense with a suite of global galaxy properties.
Blake Ledger +4 more
doaj +1 more source
Mid-infrared properties of nearby luminous infrared galaxies. I. Spitzer Infrared Spectrograph spectra for the goals sample [PDF]
, 2016 The Great Observatories All-Sky LIRG Survey (GOALS) is a comprehensive, multiwavelength study of luminous infrared galaxies (LIRGs) in the local universe. Here we present low resolution Spitzer Infrared Spectrograph spectra covering 5-38 μm and provide
Rich, Jeff +11 more
core +1 more source
Testing the Standard Cosmological Model [PDF]
, 2011 This thesis exploits the wealth of information contained in the existing cosmological surveys, and demonstrates how the use of tools such as two-point statistics permit the extraction of such information.
SAWANGWIT, UTANE
core
Obscured AGN at z < 1.5: X-Ray to Far-infrared SEDs and Host Galaxy Morphologies in the GOODS Fields
The Astrophysical JournalWe present an analysis of spectral energy distributions (SEDs), galaxy light profiles, and visual morphological classifications for 194 X-ray luminous active galactic nuclei (AGN) (intrinsic absorption-corrected $\mathrm{log}({L}_{{\rm{X}},0.5-7\,{\rm ...
William W.H. Jarvis +11 more
doaj +1 more source
Spitzer/IRS Mapping of Local Luminous Infrared Galaxies [PDF]
, 2010 We present results of our program Spitzer/IRS Mapping of local Luminous Infrared Galaxies (LIRGs). The maps cover the central 20"x20" or 30"x 30" regions of the galaxies, and use all four IRS modules to cover the full 5-38 microns spectral range. We have built spectral maps of the main mid-IR emission lines, continuum and PAH features, and extracted 1D
Pereira-Santaella, Miguel +3 more
openaire +3 more sources
The Astrophysical JournalWe introduce a novel model to spectroscopically constrain the mid-infrared (MIR) extinction/attenuation curve from 3–17 μ m, using polycyclic aromatic hydrocarbon (PAH) emission drawn from an AKARI–Spitzer extragalactic cross-archival data set. Currently
Thomas S.-Y. Lai +6 more
doaj +1 more source
Clustering and redshift-space distortions in QSO and galaxy surveys [PDF]
, 2006 In this thesis, we exploit the potential of existing QSO and galaxy surveys for investigating the nature of the large scale structure in the Universe. A detailed analysis of clustering and redshift- space distortions allows us to constrain cosmological ...
Cruz da Angela, José Antonio +1 more
core
Properties of infrared-luminous galaxies, or, how I spent seven summer vacations [PDF]
, 1991 NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. Galaxies selected from the IRAS database having unusually high 60 - 100µm luminosities are studied at wavelengths ranging from ~1 ...
Carico, David Paul
core +1 more source