Timing observations of three Galactic millisecond pulsars. Issue 4 (2nd September 2021)
- Record Type:
- Journal Article
- Title:
- Timing observations of three Galactic millisecond pulsars. Issue 4 (2nd September 2021)
- Main Title:
- Timing observations of three Galactic millisecond pulsars
- Authors:
- Lorimer, D R
Kawash, A M
Freire, P C C
Smith, D A
Kerr, M
McLaughlin, M A
Mickaliger, M B
Spiewak, R
Bailes, M
Barr, E
Burgay, M
Cameron, A D
Camilo, F
Johnston, S
Jankowski, F
Keane, E F
Keith, M
Kramer, M
Possenti, A - Abstract:
- ABSTRACT: We report observed and derived timing parameters for three millisecond pulsars (MSPs) from observations collected with the Parkes 64-m telescope, Murriyang . The pulsars were found during reprocessing of archival survey data by Mickaliger et al. One of the new pulsars (PSR J1546–5925) has a spin period P = 7.8 ms and is isolated. The other two (PSR J0921–5202 with P = 9.7 ms and PSR J1146–6610 with P = 3.7 ms) are in binary systems around low-mass (${\gt}0.2\, {\rm M}_{\odot }$ ) companions. Their respective orbital periods are 38.2 and 62.8 d. While PSR J0921–5202 has a low orbital eccentricity e = 1.3 × 10 −5, in keeping with many other Galactic MSPs, PSR J1146–6610 has a significantly larger eccentricity, e = 7.4 × 10 −3 . This makes it a likely member of a group of eccentric MSP–helium white dwarf binary systems in the Galactic disc whose formation is poorly understood. Two of the pulsars are co-located with previously unidentified point sources discovered with the Fermi satellite's Large Area Telescope, but no γ-ray pulsations have been detected, likely due to their low spin-down powers. We also show that, particularly in terms of orbital diversity, the current sample of MSPs is far from complete and is subject to a number of selection biases.
- Is Part Of:
- Monthly notices of the Royal Astronomical Society. Volume 507:Issue 4(2021)
- Journal:
- Monthly notices of the Royal Astronomical Society
- Issue:
- Volume 507:Issue 4(2021)
- Issue Display:
- Volume 507, Issue 4 (2021)
- Year:
- 2021
- Volume:
- 507
- Issue:
- 4
- Issue Sort Value:
- 2021-0507-0004-0000
- Page Start:
- 5303
- Page End:
- 5309
- Publication Date:
- 2021-09-02
- Subjects:
- pulsars: individual (PSR J0921–5202, PSR J1146–6610, PSR J1546–5925) -- stars: neutron
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/stab2474 ↗
- 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:
- 25392.xml