- Title
- Observations of diffuse radio emission in the Perseus Galaxy Cluster
- Creator
- Mungwariri, Clemence
- Subject
- Galaxies -- Clusters
- Subject
- Radio sources (Astronomy)
- Subject
- Radio interferometers
- Subject
- Perseus Galaxy Cluster
- Subject
- Diffuse radio emission
- Date Issued
- 2020
- Date
- 2020
- Type
- Thesis
- Type
- Masters
- Type
- MSc
- Identifier
- http://hdl.handle.net/10962/143325
- Identifier
- vital:38233
- Description
- In this thesis we analysed Westerbork observations of the Perseus Galaxy Cluster at 1380 MHz. Observations consist of two different pointings, covering a total of ∼ 0.5 square degrees, one including the known mini halo and the source 3C 84, the other centred on the source 3C 83.1 B. We obtained images with 83 μJy beam⁻¹ and 240 μJy beam⁻¹ noise rms for the two pointings respectively. We achieved a 60000 : 1 dynamic range in the image containing the bright 3C 84 source. We imaged the mini halo surrounding 3C 84 at high sensitivity, measuring its diameter to be ∼140 kpc and its power 4 x 10²⁴ W Hz⁻¹. Its morphology agrees quite well with that observed at 240 MHz (e.g. Gendron-Marsolais et al., 2017). We measured the flux density of 3C 84 to be 20.5 ± 0.4 Jy at the 2007 epoch, consistent with a factor of ∼2 increase since the 1960s.
- Format
- 81 pages
- Format
- Publisher
- Rhodes University
- Publisher
- Faculty of Science, Physics and Electronics
- Language
- English
- Rights
- Mungwariri, Clemence
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RU Department of Physics and Electronics
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | MUNGWARIRI-MSC-TR20-215.pdf | 151 MB | Adobe Acrobat PDF | View Details Download |