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Implications of PSR J0737-3039B for the Galactic NS-NS binary merger rate
- Title
- Implications of PSR J0737-3039B for the Galactic NS-NS binary merger rate
- Authors
- Kim, Chunglee; Perera, Benetge Bhakthi Pranama; McLaughlin, Maura A.
- Ewha Authors
- 김정리
- SCOPUS Author ID
- 김정리
- Issue Date
- 2015
- Journal Title
- MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
- ISSN
- 0035-8711
1365-2966
- Citation
- MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY vol. 448, no. 1, pp. 928 - 938
- Keywords
- gravitational waves; methods: statistical; binaries: close; pulsars: individual
- Publisher
- OXFORD UNIV PRESS
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- The Double Pulsar (PSR J0737-3039) is the only neutron star-neutron star (NS-NS) binary in which both NSs have been detectable as radio pulsars. The Double Pulsar has been assumed to dominate the Galactic NS-NS binary merger rate R-g among all known systems, solely based on the properties of the first-born, recycled pulsar (PSR J0737-3039A, or A) with an assumption for the beaming correction factor of 6. In this work, we carefully correct observational biases for the second-born, non-recycled pulsar (PSR J0737-0737B, or B) and estimate the contribution from the Double Pulsar on R-g using constraints available from both A and B. Observational constraints from the B pulsar favour a small beaming correction factor for A (similar to 2), which is consistent with a bipolar model. Considering known NS-NS binaries with the best observational constraints, including both A and B, we obtain R-g = 21(-14)(+28) Myr(-1) at 95 per cent confidence from our reference model. We expect the detection rate of gravitational waves from NS-NS inspirals for the advanced ground-based gravitational-wave detectors is to be 8(-5)(+10) yr(-1) at 95 per cent confidence. Within several years, gravitational-wave detections relevant to NS-NS inspirals will provide us useful information to improve pulsar population models.
- DOI
- 10.1093/mnras/stu2729
- Appears in Collections:
- 자연과학대학 > 물리학전공 > Journal papers
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