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http://hdl.handle.net/2445/95853
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 Galàxies Infrared spectroscopy X-rays Master's theses |
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 |
URI: | http://hdl.handle.net/2445/95853 |
Appears in Collections: | Màster Oficial - Astrofísica, Física de Partícules i Cosmologia |
Files in This Item:
File | Description | Size | Format | |
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TFM_Nuria_Torres_Alba.pdf | 1.71 MB | Adobe PDF | View/Open |
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