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Title: IR and X-ray luminosity in Luminous Infrared Galaxies
Author: Torres Albà, Núria
Director/Tutor: Iwasawa, Kazushi
Bosch i Ramon, Valentí
Keywords: Galàxies
Espectroscòpia infraroja
Raigs X
Treballs de fi de màster
Infrared spectroscopy
Master's thesis
Issue Date: 3-Jul-2015
Abstract: In this work, X-ray data for a sample of 59 luminous infrared galaxies (LIRGs), obtained with the Chandra X-ray Observatory is presented. These are observations of the lower luminosity portion of the Great Observatory All-sky LIRG Survey (GOALS), which includes the most luminous infrared selected galaxies, log(Lir=L ) 11:05, in the local universe, z 0:088.With combined X-ray and mid infrared diagnostics for AGN, AGN are found in 32 % of the objects. Objects without traces of AGN appear to be underluminous in X-rays, compared to the previously derived far infrared and X-ray correlations for starburst galaxies at lower star formation rates. Our results suggest the previous claim that star formation rate can be directly inferred from X-ray luminosity may not hold for dusty galaxies like LIRGs.
Note: Màster d'Astrofísica, Física de Partícules i Cosmologia, Facultat de Física, Universitat de Barcelona, Curs: 2014-2015, Tutors: Kazushi Iwasawa i Valentí Bosch Ramon
Appears in Collections:Màster Oficial - Astrofísica, Física de Partícules i Cosmologia

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