The MAVERIC Survey: A Transitional Millisecond Pulsar Candidate in Terzan 5
Transitional millisecond pulsars are accreting millisecond pulsars that switch between accreting X-ray binary and millisecond radio pulsar states. Only a handful of these objects have been identified so far. Terzan 5 CX1 is a variable hard-X-ray source in the globular cluster Terzan 5. In this paper...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Journal Article |
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Institute of Physics Publishing
2018
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| Online Access: | http://purl.org/au-research/grants/arc/FT140101082 http://hdl.handle.net/20.500.11937/71239 |
| _version_ | 1848762427628322816 |
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| author | Bahramian, A. Strader, J. Chomiuk, L. Heinke, C. Miller-Jones, James Degenaar, N. Tetarenko, A. Tudor, V. Tremou, E. Shishkovsky, L. Wijnands, R. Maccarone, T. Sivakoff, G. Ransom, S. |
| author_facet | Bahramian, A. Strader, J. Chomiuk, L. Heinke, C. Miller-Jones, James Degenaar, N. Tetarenko, A. Tudor, V. Tremou, E. Shishkovsky, L. Wijnands, R. Maccarone, T. Sivakoff, G. Ransom, S. |
| author_sort | Bahramian, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Transitional millisecond pulsars are accreting millisecond pulsars that switch between accreting X-ray binary and millisecond radio pulsar states. Only a handful of these objects have been identified so far. Terzan 5 CX1 is a variable hard-X-ray source in the globular cluster Terzan 5. In this paper, we identify a radio counterpart to CX1 in deep Very Large Array radio continuum data. Chandra observations over the last 14 years indicate that CX1 shows two brightness states: in 2003 and 2016 the source was the brightest X-ray source in the cluster (at L X ~ 1033 erg s-1), while in many intermediate observations, its luminosity was almost an order of magnitude lower. We analyze all available X-ray data of CX1, showing that the two states are consistent with the spectral and variability properties observed for the X-ray active and radio pulsar states of known transitional millisecond pulsars. Finally, we discuss the prospects for the detection of CX1 as a radio pulsar in existing timing data. |
| first_indexed | 2025-11-14T10:47:24Z |
| format | Journal Article |
| id | curtin-20.500.11937-71239 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:47:24Z |
| publishDate | 2018 |
| publisher | Institute of Physics Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-712392020-07-29T09:42:10Z The MAVERIC Survey: A Transitional Millisecond Pulsar Candidate in Terzan 5 Bahramian, A. Strader, J. Chomiuk, L. Heinke, C. Miller-Jones, James Degenaar, N. Tetarenko, A. Tudor, V. Tremou, E. Shishkovsky, L. Wijnands, R. Maccarone, T. Sivakoff, G. Ransom, S. Transitional millisecond pulsars are accreting millisecond pulsars that switch between accreting X-ray binary and millisecond radio pulsar states. Only a handful of these objects have been identified so far. Terzan 5 CX1 is a variable hard-X-ray source in the globular cluster Terzan 5. In this paper, we identify a radio counterpart to CX1 in deep Very Large Array radio continuum data. Chandra observations over the last 14 years indicate that CX1 shows two brightness states: in 2003 and 2016 the source was the brightest X-ray source in the cluster (at L X ~ 1033 erg s-1), while in many intermediate observations, its luminosity was almost an order of magnitude lower. We analyze all available X-ray data of CX1, showing that the two states are consistent with the spectral and variability properties observed for the X-ray active and radio pulsar states of known transitional millisecond pulsars. Finally, we discuss the prospects for the detection of CX1 as a radio pulsar in existing timing data. 2018 Journal Article http://hdl.handle.net/20.500.11937/71239 10.3847/1538-4357/aad68b http://purl.org/au-research/grants/arc/FT140101082 Institute of Physics Publishing fulltext |
| spellingShingle | Bahramian, A. Strader, J. Chomiuk, L. Heinke, C. Miller-Jones, James Degenaar, N. Tetarenko, A. Tudor, V. Tremou, E. Shishkovsky, L. Wijnands, R. Maccarone, T. Sivakoff, G. Ransom, S. The MAVERIC Survey: A Transitional Millisecond Pulsar Candidate in Terzan 5 |
| title | The MAVERIC Survey: A Transitional Millisecond Pulsar Candidate in Terzan 5 |
| title_full | The MAVERIC Survey: A Transitional Millisecond Pulsar Candidate in Terzan 5 |
| title_fullStr | The MAVERIC Survey: A Transitional Millisecond Pulsar Candidate in Terzan 5 |
| title_full_unstemmed | The MAVERIC Survey: A Transitional Millisecond Pulsar Candidate in Terzan 5 |
| title_short | The MAVERIC Survey: A Transitional Millisecond Pulsar Candidate in Terzan 5 |
| title_sort | maveric survey: a transitional millisecond pulsar candidate in terzan 5 |
| url | http://purl.org/au-research/grants/arc/FT140101082 http://hdl.handle.net/20.500.11937/71239 |