Recurrence plots of pulsar profiles
Amelia Carolina Sparavigna Polito - Politecnico di Torino [Torino]
Abstract : Pulsars are rotating neutron stars that have an emission of electromagnetic
radiations which is continuous but beamed. Therefore, an observer sees a pulse of
radiation when the beam sweeps across his line-of-sight. Averaging over many pulses,
a pulse profile specific of the observed pulsar is obtained. Here we propose the use of
a recurrence plot for showing it.
This plot can highlight specific behaviours in pulse profiles.
Keywords : Recurrence Plots Pulsars Pulse Profiles
Type de document :
Article dans une revue
Philica, Philica, 2015, pp.533.
Available at https://hal.archives-ouvertes.fr/hal-01487452/
Domaine :
Planète et Univers [physics] /
Astrophysique [astro-ph] /
Astrophysique stellaire et solaire [astro-ph.SR]
Here the figures of the article
Figure 1: On the left, the plot of 512 ASCII data of the pulse profile
from PSR J2307+2225 [8].
On the right, the corresponding recurrence plot.
Figure 2: On the left, the plot of 1024 ASCII data of the pulse profile
of PSR J2235+1506 [10]. On the right, the corresponding recurrence plot.
Figure 3: On the left, the plot of 1024 ASCII data of the pulse profile
at high frequency of PSR J1919 [11].
On the right, the corresponding recurrence plot.
Figure 4: Recurrence plot of Pulsar J2317+1439 [10].
The background is displaying an interesting pattern,
typical of a autoregressive process [7].
Figure 5: PSR J0437-4715 pulse profiles at two different frequencies [14] .
Note the presence of a double notch.
Figure 6: PSR J2322+2057 pulse profiles at two different frequencies [16].
Note that we can see two peaks. One is quite faint at the lower frequency,
but it is visible in the recurrence plot.
References
[1] J.J. Condon and S.M. Ransom, Essential Radio Astronomy, National Radio Astronomy Observatory, retrieved 18 October 2015, http://www.cv.nrao.edu/course/astr534/ERA.shtml
[2] W. Baade and F. Zwicky, On Super-novae, Proceedings of the National Academy of Sciences of the United States of America, vol. 20, no. 5, 1034, p. 254-259.
[3] R. Oppenheimer and G.M. Volkoff, On Massive Neutron Cores, Phys. Rev. 55, 1939, p.374.
[4] F. Pacini, Energy Emission from a Neutron Star, Nature, vol. 216, no. 5115, 1967, p. 567, DOI: 10.1038/216567a0
[5] W.R. Burns and B.G. Clark, Pulsar Search Techniques, Astronomy and Astrophysics, vol. 2, 1969, p. 280-287.
[6] N. Marwan and J. Kurths, Cross Recurrence Plots and Their Applications, in Mathematical Physics Research at the Cutting Edge, C.V. Benton Editor, pp.101-139, Nova Science Publishers, 2004.
[7] A.C. Sparavigna, Recurrence Plots of Exchange Rates of Currencies, International Journal of Sciences, vol. 3, no. 7, 2014, p. 87-95. DOI: 10.18483/ijSci.545
[8] F. Camilo and D.J. Nice, Timing parameters of 29 pulsars, Astrophysical Journal, Part 1, vol. 445, no. 2, 1995, p. 756-761.
[9] E. Kononov, Visual Recurrence Analysis, www.visualization-2002.org/
[10] F. Camilo, D.J. Nice and J.H. Taylor, Discovery of Two Fast-Rotating Pulsars, Astrophysical Journal, Part 2 - Letters, vol. 412, no. 1, p. L37-L40.
[11] J.H. Seiradakis, J.A. Gil, D.A. Graham, A. Jessner, M. Kramer, V.M. Malofeev, W. Sieber and R. Wielebinski, Pulsar Profiles at High-frequencies. 1. The Data, Astronomy and Astrophysics Supplement, v.111, 1995, p.205.
[12] S. Johnston, D.R. Lorimer, P.A. Harrison, et al. Discovery of a Very Bright, Nearby Binary Millisecond Pulsar, Nature, vol. 361, no. 6413. 1993, p. 613–615.
[13] Vv. Aa., Wikipedia, https://en.wikipedia.org/wiki/PSR_J0437-4715
[14] J.F. Bell, M. Bailes, R.N. Manchester, A.G. Lyne, F. Camilo and J.S. Sandhu, Timing Measurements and Their Implications for Four Binary Millisecond Pulsars, Monthly Notices of the Royal Astronomical Society, vol. 286, no. 2, 1997, p. 463-469.
[15] J. Navarro, R.N. Manchester, J.S. Sandhu, S.R. Kulkarni and M. Bailes, Mean Pulse Shape and Polarization of PSR J0437-4715, The Astrophysical Journal, vol. 486, 1997, p. 1019-1025.
[16] I.H. Stairs, E.M. Splaver, S.E. Thorsett, D.J. Nice and J.H. Taylor, A Baseband Recorder for Radio Pulsar Observations, Monthly Notices of the Royal Astronomical Society, vol. 314, no. 3, 1999, p. 459-467.
