Universität zu Köln

Schwörer, Andreas Stefan (2020). Sagittarius B2 North - Birth of a super-stellar cluster? PhD thesis, Universität zu Köln.

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Abstract

Sagittarius B2 (North) is a chemically rich, high-mass star-forming region located within the giant molecular cloud complex Sgr B2 in the central molecular zone of our Galaxy. I have used an unbiased, spectral line-survey at 1 mm that was obtained with ALMA to study the small-scale structure of the dense gas in Sgr B2(N). This thesis includes a detailed analysis of the accretion process along newly identified filaments and of feedback processes as outflows and HII regions. I conclude that the high density and mass of the central region, combined with the presence of converging filaments with high mass, high accretion rates and embedded dense cores already forming stars, suggest that Sgr B2(N) has the potential to evolve into a super-stellar cluster.

Item Type:	Thesis (PhD thesis)
Creators:	Creators Email ORCID ORCID Put Code Schwörer, Andreas Stefan schwoererandreas@t-online.de UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-207367
Date:	2020
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute of Physics I
Subjects:	Physics
Uncontrolled Keywords:	Keywords Language high-mass star formation UNSPECIFIED Sagittarius B2 UNSPECIFIED astrophysics UNSPECIFIED
Date of oral exam:	9 September 2020
Referee:	Name Academic Title Schilke, Peter Prof. Dr. Walch-Gassner, Stefanie Prof. Dr.
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/20736