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Title

Warm molecular gas in Hot Dust-Obscured Galaxies

Alternative Title

Θερμό μοριακό αέριο σε ζεστούς καλυμένους από σκόνη γαλαξίες

Author

Μπουρμπάχ, Ιωακείμ-Γεράσιμος

Author

Bourbah, Ioakeim-Gerasimos

Thesis advisor

Diaz-Santos, Tanio

Abstract

The main goal of this thesis is to estimate of the luminosity of the CO(J=7-6) line and to calculate molecular gas mass of the Hot Dust-Obscured Galaxy (Hot DOG) WISE J224607.57-052635.0 (W2246-0526 hereafter). Hot DOGs are an uncommon population of hyper-luminous, substantially dust-obscured quasars detected by the NASA’s W ide − f ield Infrared Survey Explorer (W ISE) mission. Observations from Atacama Large Millimeter/Submillimeter Array (ALMA) Observatory were used. The Common Astronomy Software Applications (CASA) software was used to produce the data cube of the emission line from the ALMA interferometric observations. Astropy was used for the later analysis. As presented in the section 3, we first estimated the flux of the CO(J=7-6) line, and then calculated its luminosity. Using scaling relations from the literature, the luminosity of CO(1-0) was derived. Finally, using an α_CO conversion factor appropriate for our source the molecular gas mass of the host galaxy was obtained.

Language

English

Subject

Hot DOG

Issue date

2023-11-22

Collection

School/Department--School of Sciences and Engineering--Department of Physics--Graduate theses

Type of Work--Graduate theses

Permanent Link

https://elocus.lib.uoc.gr//dlib/c/0/6/metadata-dlib-1695897631-899751-12926.tkl