### Limits on the mass, velocity and orbit of PSR J1933-6211

Graikou E, Verbiest J, Oslowski S, Champion DJ, Tauris TM, Jankowski F, Kramer M (2017)
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 471(4): 4579-4586.

Zeitschriftenaufsatz | Veröffentlicht | Englisch

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Autor*in
Graikou, E.; Verbiest, JorisUniBi ; Oslowski, StefanUniBi; Champion, D. J.; Tauris, T. M.; Jankowski, F.; Kramer, M.
Einrichtung
Abstract / Bemerkung
We present a high-precision timing analysis of PSR J1933-6211, a millisecond pulsar with a 3.5 ms spin period and a white dwarf (WD) companion, using data from the Parkes radio telescope. Since we have accurately measured the polarization properties of this pulsar, we have applied the matrix template matching approach in which the times of arrival are measured using full polarimetric information. We achieved a weighted root-mean-square timing residuals of the timing residuals of 1.23 mu s, 15.5 per cent improvement compared to the total intensity timing analysis. After studying the scintillation properties of this pulsar, we put constraints on the inclination angle of the system. Based on these measurements and on chi(2) mapping we put a 2 sigma upper limit on the companion mass (0.44 M-circle dot). Since this mass limit cannot reveal the nature of the companion, we further investigate the possibility of the companion to be a He WD. Applying the orbital period-mass relation for such WDs, we conclude that the mass of a He WD companion would be about 0.26 +/- 0.01 M-circle dot, which combined with the measured mass function and orbital inclination limits, would lead to a light pulsar mass <= 1.0M(circle dot). This result seems unlikely based on current neutron star formation models and we therefore conclude that PSR J1933-6211 most likely has a CO WD companion, which allows for a solution with a more massive pulsar.
Stichworte
pulsars: general; pulsars: individual: PSR J1933-6211
Erscheinungsjahr
2017
Zeitschriftentitel
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Band
471
Ausgabe
4
Seite(n)
4579-4586
ISSN
0035-8711
eISSN
1365-2966
Page URI
https://pub.uni-bielefeld.de/record/2914408

### Zitieren

Graikou E, Verbiest J, Oslowski S, et al. Limits on the mass, velocity and orbit of PSR J1933-6211. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 2017;471(4):4579-4586.
Graikou, E., Verbiest, J., Oslowski, S., Champion, D. J., Tauris, T. M., Jankowski, F., & Kramer, M. (2017). Limits on the mass, velocity and orbit of PSR J1933-6211. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 471(4), 4579-4586. doi:10.1093/mnras/stx1795
Graikou, E., Verbiest, J., Oslowski, S., Champion, D. J., Tauris, T. M., Jankowski, F., and Kramer, M. (2017). Limits on the mass, velocity and orbit of PSR J1933-6211. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 471, 4579-4586.
Graikou, E., et al., 2017. Limits on the mass, velocity and orbit of PSR J1933-6211. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 471(4), p 4579-4586.
E. Graikou, et al., “Limits on the mass, velocity and orbit of PSR J1933-6211”, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 471, 2017, pp. 4579-4586.
Graikou, E., Verbiest, J., Oslowski, S., Champion, D.J., Tauris, T.M., Jankowski, F., Kramer, M.: Limits on the mass, velocity and orbit of PSR J1933-6211. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 471, 4579-4586 (2017).
Graikou, E., Verbiest, Joris, Oslowski, Stefan, Champion, D. J., Tauris, T. M., Jankowski, F., and Kramer, M. “Limits on the mass, velocity and orbit of PSR J1933-6211”. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 471.4 (2017): 4579-4586.

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