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A balloon-borne very long baseline interferometry experiment in the stratosphere: Systems design and developments.
- Source :
-
Advances in Space Research . Jan2019, Vol. 63 Issue 1, p779-793. 15p. - Publication Year :
- 2019
-
Abstract
- Abstract The balloon-borne very long baseline interferometry (VLBI) experiment is a technical feasibility study for performing radio interferometry in the stratosphere. The flight model has been developed. A balloon-borne VLBI station will be launched to establish interferometric fringes with ground-based VLBI stations distributed over the Japanese islands at an observing frequency of approximately 20 GHz as the first step. This paper describes the system design and development of a series of observing instruments and bus systems. In addition to the advantages of avoiding the atmospheric effects of absorption and fluctuation in high frequency radio observation, the mobility of a station can improve the sampling coverage (" uv -coverage") by increasing the number of baselines by the number of ground-based counterparts for each observation day. This benefit cannot be obtained with conventional arrays that solely comprise ground-based stations. The balloon-borne VLBI can contribute to a future progress of research fields such as black holes by direct imaging. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02731177
- Volume :
- 63
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Advances in Space Research
- Publication Type :
- Academic Journal
- Accession number :
- 133556735
- Full Text :
- https://doi.org/10.1016/j.asr.2018.09.020