MeerKAT discovery of 13 new pulsars in Omega Centauri. Issue 3 (9th January 2023)
- Record Type:
- Journal Article
- Title:
- MeerKAT discovery of 13 new pulsars in Omega Centauri. Issue 3 (9th January 2023)
- Main Title:
- MeerKAT discovery of 13 new pulsars in Omega Centauri
- Authors:
- Chen, W
Freire, P C C
Ridolfi, A
Barr, E D
Stappers, B
Kramer, M
Possenti, A
Ransom, S M
Levin, L
Breton, R P
Burgay, M
Camilo, F
Buchner, S
Champion, D J
Abbate, F
Venkatraman Krishnan, V
Padmanabh, P V
Gautam, T
Vleeschower, L
Geyer, M
Grießmeier, J-M
Men, Y P
Balakrishnan, V
Bezuidenhout, M C - Abstract:
- ABSTRACT: The most massive globular cluster in our Galaxy, Omega Centauri, is an interesting target for pulsar searches, because of its multiple stellar populations and the intriguing possibility that it was once the nucleus of a galaxy that was absorbed into the Milky Way. The recent discoveries of pulsars in this globular cluster and their association with known X-ray sources was a hint that, given the large number of known X-ray sources, there is a much larger undiscovered pulsar population. We used the superior sensitivity of the MeerKAT radio telescope to search for pulsars in Omega Centauri. In this paper, we present some of the first results of this survey, including the discovery of 13 new pulsars; the total number of known pulsars in this cluster currently stands at 18. At least half of them are in binary systems and preliminary orbital constraints suggest that most of the binaries have light companions. We also discuss the ratio between isolated and binaries pulsars, and how they were formed in this cluster.
- Is Part Of:
- Monthly notices of the Royal Astronomical Society. Volume 520:Issue 3(2023)
- Journal:
- Monthly notices of the Royal Astronomical Society
- Issue:
- Volume 520:Issue 3(2023)
- Issue Display:
- Volume 520, Issue 3 (2023)
- Year:
- 2023
- Volume:
- 520
- Issue:
- 3
- Issue Sort Value:
- 2023-0520-0003-0000
- Page Start:
- 3847
- Page End:
- 3856
- Publication Date:
- 2023-01-09
- Subjects:
- Pulsar -- Globular cluster -- Binary
Astronomy -- Periodicals
Periodicals
520.5 - Journal URLs:
- http://mnras.oxfordjournals.org/ ↗
http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-2966 ↗
http://www.blackwell-synergy.com/issuelist.asp?journal=mnr ↗
http://www.blackwell-synergy.com/loi/mnr ↗
http://ukcatalogue.oup.com/ ↗ - DOI:
- 10.1093/mnras/stad029 ↗
- Languages:
- English
- ISSNs:
- 0035-8711
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 5943.000000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 25967.xml