The LOFAR Tied-Array all-sky survey: Timing of 21 pulsars including the first binary pulsar discovered with LOFAR

Tan CM, Bassa CG, Cooper S, Hessels JWT, Kondratiev, V. I, Michilli D, Sanidas S, Stappers BW, van Leeuwen J, Donner J, Griessmeier J-M, et al. (2020)
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 492(4): 5878-5896.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Tan, C. M.; Bassa, C. G.; Cooper, S.; Hessels, J. W. T.; Kondratiev, V., I; Michilli, D.; Sanidas, S.; Stappers, B. W.; van Leeuwen, J.; Donner, JulianUniBi; Griessmeier, J-M; Kramer, M.
Alle
Abstract / Bemerkung
We report on the multifrequency timing observations of 21 pulsars discovered in the LOFAR Tied -Array All -Sky Survey (LOTAAS). The timing data were taken at central frequencies of 149 MHz (LOFAR) as well as 334 and 1532 MHz (Lovell Telescope). The sample of pulsars includes 20 isolated pulsars and the first binary pulsar discovered by the survey, PSR11658+3630. We modelled the timing properties of the pulsars, which showed that they have, on average, larger characteristic ages, We present the pulse profiles of the pulsars across the three observing bands, where PSR J1643+1338 showed profile evolution that appears not to be well -described by the radius -to -frequency -mapping model, Furthermore, we modelled the spectra of the pulsars across the same observing bands, using a simple power law, and found an average spectral index of 1,9 0,5. Amongst the pulsars studied here, PSR J1657+3304 showed large flux density variations of a factor of 10 over 300 d, as well as mode changing and nulling On time -scales of a few minutes. We modelled the rotational and orbital properties of PSR J1658+3630, which has a spin period of 33 ms in a binary orbit of 3.0 d with a companion of minimum mass of 0.87 M0,, likely a carbon oxygen or oxygen neon magnesium type white dwarf. PSR J1658+3630 has a dispersion measure of 3.0 pc cm-3, making it possibly one of the closest binary pulsars known.
Stichworte
methods: data analysis; methods: observational; pulsars: general; pulsars: PSR J1658+3630
Erscheinungsjahr
2020
Zeitschriftentitel
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Band
492
Ausgabe
4
Seite(n)
5878-5896
ISSN
0035-8711
eISSN
1365-2966
Page URI
https://pub.uni-bielefeld.de/record/2942085

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Tan CM, Bassa CG, Cooper S, et al. The LOFAR Tied-Array all-sky survey: Timing of 21 pulsars including the first binary pulsar discovered with LOFAR. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 2020;492(4):5878-5896.
Tan, C. M., Bassa, C. G., Cooper, S., Hessels, J. W. T., Kondratiev, V., I., Michilli, D., Sanidas, S., et al. (2020). The LOFAR Tied-Array all-sky survey: Timing of 21 pulsars including the first binary pulsar discovered with LOFAR. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 492(4), 5878-5896. doi:10.1093/mnras/staa113
Tan, C. M., Bassa, C. G., Cooper, S., Hessels, J. W. T., Kondratiev, V., I., Michilli, D., Sanidas, S., Stappers, B. W., van Leeuwen, J., Donner, J., et al. (2020). The LOFAR Tied-Array all-sky survey: Timing of 21 pulsars including the first binary pulsar discovered with LOFAR. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 492, 5878-5896.
Tan, C.M., et al., 2020. The LOFAR Tied-Array all-sky survey: Timing of 21 pulsars including the first binary pulsar discovered with LOFAR. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 492(4), p 5878-5896.
C.M. Tan, et al., “The LOFAR Tied-Array all-sky survey: Timing of 21 pulsars including the first binary pulsar discovered with LOFAR”, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 492, 2020, pp. 5878-5896.
Tan, C.M., Bassa, C.G., Cooper, S., Hessels, J.W.T., Kondratiev, V., I., Michilli, D., Sanidas, S., Stappers, B.W., van Leeuwen, J., Donner, J., Griessmeier, J.-M., Kramer, M., Tiburzi, C., Weltevrede, P., Ciardi, B., Hoeft, M., Mann, G., Miskolczi, A., Schwarz, D., Vocks, C., Wucknitz, O.: The LOFAR Tied-Array all-sky survey: Timing of 21 pulsars including the first binary pulsar discovered with LOFAR. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 492, 5878-5896 (2020).
Tan, C. M., Bassa, C. G., Cooper, S., Hessels, J. W. T., Kondratiev, V., I, Michilli, D., Sanidas, S., Stappers, B. W., van Leeuwen, J., Donner, Julian, Griessmeier, J-M, Kramer, M., Tiburzi, C., Weltevrede, P., Ciardi, B., Hoeft, M., Mann, G., Miskolczi, A., Schwarz, Dominik, Vocks, C., and Wucknitz, O. “The LOFAR Tied-Array all-sky survey: Timing of 21 pulsars including the first binary pulsar discovered with LOFAR”. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 492.4 (2020): 5878-5896.