A Compact Extreme Scattering Event Cloud toward AO 0235+164
We present observations of a rare, rapid, high-amplitude extreme scattering event toward the compact BL Lac object AO 0235+164 at 6.65 GHz. The ESE cloud is compact; we estimate its diameter between 0.09 and 0.9 AU, with a distance of less than 3.6 kpc. Limits on the angular extent of the ESE cloud...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
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The American Astronomical Society
2008
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/25433 |
| _version_ | 1848751707038679040 |
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| author | Senkbeil, C. Ellingsen, S. Lovell, J. Macquart, Jean-pierre Cimo, G. Jauncey, D. |
| author_facet | Senkbeil, C. Ellingsen, S. Lovell, J. Macquart, Jean-pierre Cimo, G. Jauncey, D. |
| author_sort | Senkbeil, C. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We present observations of a rare, rapid, high-amplitude extreme scattering event toward the compact BL Lac object AO 0235+164 at 6.65 GHz. The ESE cloud is compact; we estimate its diameter between 0.09 and 0.9 AU, with a distance of less than 3.6 kpc. Limits on the angular extent of the ESE cloud imply a minimum cloud electron density of ~4 x 10 3 cm -3. Based on the amplitude and timescale of the ESE observed here, we suggest that at least one of the transients reported by Bower et al. may be attributed to ESEs. |
| first_indexed | 2025-11-14T07:57:00Z |
| format | Journal Article |
| id | curtin-20.500.11937-25433 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:57:00Z |
| publishDate | 2008 |
| publisher | The American Astronomical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-254332023-02-22T06:24:24Z A Compact Extreme Scattering Event Cloud toward AO 0235+164 Senkbeil, C. Ellingsen, S. Lovell, J. Macquart, Jean-pierre Cimo, G. Jauncey, D. individual (AO 0235164) galaxies structure BL Lacertae objects active-ISM We present observations of a rare, rapid, high-amplitude extreme scattering event toward the compact BL Lac object AO 0235+164 at 6.65 GHz. The ESE cloud is compact; we estimate its diameter between 0.09 and 0.9 AU, with a distance of less than 3.6 kpc. Limits on the angular extent of the ESE cloud imply a minimum cloud electron density of ~4 x 10 3 cm -3. Based on the amplitude and timescale of the ESE observed here, we suggest that at least one of the transients reported by Bower et al. may be attributed to ESEs. 2008 Journal Article http://hdl.handle.net/20.500.11937/25433 10.1086/527300 The American Astronomical Society unknown |
| spellingShingle | individual (AO 0235164) galaxies structure BL Lacertae objects active-ISM Senkbeil, C. Ellingsen, S. Lovell, J. Macquart, Jean-pierre Cimo, G. Jauncey, D. A Compact Extreme Scattering Event Cloud toward AO 0235+164 |
| title | A Compact Extreme Scattering Event Cloud toward AO 0235+164 |
| title_full | A Compact Extreme Scattering Event Cloud toward AO 0235+164 |
| title_fullStr | A Compact Extreme Scattering Event Cloud toward AO 0235+164 |
| title_full_unstemmed | A Compact Extreme Scattering Event Cloud toward AO 0235+164 |
| title_short | A Compact Extreme Scattering Event Cloud toward AO 0235+164 |
| title_sort | compact extreme scattering event cloud toward ao 0235+164 |
| topic | individual (AO 0235164) galaxies structure BL Lacertae objects active-ISM |
| url | http://hdl.handle.net/20.500.11937/25433 |