GUSTO balloon mission: commissioning data of [CII] emission of Eta Carina 5

Oosterhof, Silke (2025) GUSTO balloon mission: commissioning data of [CII] emission of Eta Carina 5. Bachelor's Thesis, Astronomy.

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Abstract

GUSTO’s main objective is to map the galactic plane for [CII], [NII] and [OI] by use of on-the-fly mapping. This paper looks at the [CII] data from the commissioning observations of the GUSTO balloon mission pointed towards the Eta Carina 5 region. The aim of the project is to explain how the observations were done for sequences 50 and 51. Then, the emission spectra of [CII] will be analyzed and the resolved velocity of the gas cloud will be determined. By calculating the antenna temperature from the data, the emission spectra will be plotted and studied. The flow of the observations will be found by making an overview of how the sequences were made. The flow of the observations of sequences 50 and 51 was different. Where sequence 50 had one source location, sequence 51 had nine source locations. In the anaylsis we find that both sequences show signs of CII emission and self-absorption. During the commissioning period of the GUSTO mission, the coordinates of the star finder were not yet correctly coupled with the coordinates in the data file. Given the incorrect coordinates, it is unknown where the CII emission and absorption are seen. We do see that the flow of the observation differs per sequence. From the nine points in sequence 51, we can create a picture of the movements of the observed object and find that most of the emission is found for l > 287.628 and b > 0.187. In addition, for l < 287.628 and b < 0.187 we see more self-absorption with higher antenna temperatures.

Item Type:	Thesis (Bachelor's Thesis)
Supervisor name:	Shipman, R.F.
Degree programme:	Astronomy
Thesis type:	Bachelor's Thesis
Language:	English
Date Deposited:	15 Jul 2025 10:41
Last Modified:	15 Jul 2025 10:41
URI:	https://fse.studenttheses.ub.rug.nl/id/eprint/36117

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