Timing Noise Amplitudes of Magnetars During Outburst Episodes

Abstract

In this study, the timing noise strengths of magnetars are examined during their outbursts. Noise amplitude measurements were investigated via two different techniques referred to as $\Delta_8$ and $S_r$. The relationship between the noise amplitudes and the independent physical parameters has been investigated. It has been revealed that there is a correlation between the total energy emitted by magnetars during the outburst period and their noise amplitudes. Based on this correlation, it is argued that the timing noise observed in magnetars stems from their ultra-strong magnetic fields and forms a continuum with pulsar population.

Keywords

• magnetars
• timing noise
• methods: observational

Magnetarların Parlama Sırasındaki Gürültü Genlikleri

Öz

Bu çalışmada magnetar kaynaklarının parlama süreçlerindeki gürültü genlikleri incelenmektedir. Gürültü genliği ölçümleri $\Delta_8$ ve $S_r$ olarak iki farklı teknik ile incelenmiştir. Gürültü genliklerinin bağımsız fiziksel parametreler ile olan ilişkileri incelenmiştir ve magnetarların parlama süresinde yaydıkları toplam enerji ile gürültü genlikleri arasında bağıntı olduğu ortaya koyulmaktadır. Bu bağıntıdan yola çıkarak magnetarların zamanlama gürültüsü oluşumunun radyo atarcalarla benzerlik gösterdiği ve bu süreçte asıl etkenin yüksek manyetik alan şiddeti olduğu tartışılmaktadır.

Anahtar Kelimeler

• magnetars
• timing noise
• methods: observational

References

1. Alpar M. A., 2001, Astrophysical Journal, 554, 1245
2. Arzoumanian Z., Nice D. J., Taylor J. H., Thorsett S. E., 1994, Astrophysical Journal, 422, 671
3. Bachetti M., et al., 2020, Astrophysical Journal, 891, 44
4. Baykal A., Öğelman H., 1993, Astronomy and Astrophysics 267, 119, ADS
5. Baykal A., Ali Alpar M., Boynton P. E., Deeter J. E., 1999, Monthly Notices of Royal Astronomical Society, 306, 207
6. Beloborodov A. M., Levin Y., 2014, Astrophysical Journal Letters, 794, L24
7. Bildsten L., et al., 1997, Astrophysical Journal Supplement Series, 113, 367
8. Boynton P. E., Groth E. J., Hutchinson D. P., Nanos G. P. J., Partridge R. B., Wilkinson D. T., 1972, Astrophysical Journal, 175, 217 Chatterjee P., Hernquist L., Narayan R., 2000, Astrophysical Journal, 534, 373

9. Chevalier R. A., 1989, Astrophysical Journal, 346, 847
10. Cordes J. M., Downs G. S., 1985, Astrophysical JournalS, 59, 343
11. Cordes J. M., Helfand D. J., 1980, Astrophysical Journal, 239, 640
12. Coti Zelati F., Rea N., Pons J. A., Campana S., Esposito P., 2018, Monthly Notices of Royal Astronomical Society, 474, 961
13. D’Alessandro F., McCulloch P. M., Hamilton P. A., Deshpande A. A., 1995, Monthly Notices of Royal Astronomical Society, 277, 1033
14. Deeter J. E., 1984, Astrophysical Journal, 281, 482
15. Doroshenko V., Santangelo A., Suleimanov V. F., Tsygankov S. S.,2020, Astronomy and Astrophysics, 643, A173
16. Duncan R. C., Thompson C., 1992, Astrophysical Journal Letters, 392, L9
17. Ekşı K. Y., Alpar M. A., 2003, Astrophysical Journal, 599, 450
18. Ertan Ü., Çalışkan Ş., 2006, Astrophysical Journal Letters, 649, L87
19. Haskell B., Melatos A., 2015, International Journal of Modern Physics D, 24, 1530008
20. Hobbs G., Lyne A. G., Kramer M., 2010, Monthly Notices of Royal Astronomical Society, 402, 1027
21. Hurley K., Cline T., Mazets, E., Barthelmy S., Butterworth P. et al., 1999, Nature, 397, 41
22. Hurley K., Boggs S. E., Smith D. M., Duncan, R.C. Lin R., et al., 2005, Nature, 434, 1098
23. Kaplan D. L., Kulkarni S. R., van Kerkwijk M. H., Rothschild R. E., Lingenfelter R. L., Marsden D., Danner R., Murakami T., 2001, Astrophysical Journal, 556, 399
24. Kaspi V. M., Beloborodov A. M., 2017, ARAA, 55, 261
25. Li X.-D., 2007, Astrophysical Journal Letters, 666, L81
26. Lin D. N. C., Woosley S. E., Bodenheimer P. H., 1991, Nature, 353, 827
27. Lower M. E., et al., 2020, Monthly Notices of Royal Astronomical Society, 494, 228
28. Mazets E. P., Golentskii S. V., Ilinskii V. N., Aptekar R. L., Guryan I. A., 1979, Nature, 282, 587
29. Menou K., Perna R., Hernquist L., 2001, Astrophysical Journal, 559, 1032
30. Mereghetti S., 2008, Astronomy and Astrophysics Review, 15, 225
31. Ray P. S., Guillot S., Ho W. C. G. , Kerr M., Enoto T., et al., 2019, Astrophysical Journal, 879, 130
32. Rea N., Israel G. L., Pons J. A., Turolla R., Viganò D., et al., 2013, Astrophysical Journal, 770, 65
33. Scholz P., Kaspi V. M., Cumming A., 2014, Astrophysical Journal, 786, 62
34. Scott D. M., Finger M. H., Wilson C. A., 2003, Monthly Notices of Royal Astronomical Society, 344, 412
35. Serim M. M., Inam S. Baykal A., 2012, in Lewandowski W., Maron O., Kijak J., eds, Astronomical Society of the Pacific Conference Series Vol. 466, Electromagnetic Radiation from Pulsars and Magnetars. p. 255
36. Serim M. M., Şahiner Ş., Çerri-Serim D., Inam S. ć., Baykal A., 2017, Monthly Notices of Royal Astronomical Society, 471, 4982
37. Shannon R. M., Cordes J. M., 2010, Astrophysical Journal, 725, 1607
38. Tagieva S. O., Yazgan E., Ankay A., 2003, International Journal of Modern Physics D, 12, 825
39. Thompson C., Duncan R. C., 1995, Monthly Notices of Royal Astronomical Society, 275, 255
40. Thompson C., Duncan R. C., 1996, Astrophysical Journal, 473, 322
41. Thompson C., Lyutikov M., Kulkarni S. R., 2002, Astrophysical Journal, 574, 332
42. Tsang D., Gourgouliatos K. N., 2013, Astrophysical JournalL, 773, L17
43. Turolla R., Zane S., Watts A. L., 2015, Reports on Progress in Physics, 78, 116901
44. Wang Z., Chakrabarty D., Kaplan D. L., 2006, Nature, 440, 772
45. Çerri-Serim D., Serim M. M., Şahiner Ş., Inam S. ć., Baykal A., 2019, Monthly Notices of Royal Astronomical Society, 485, 2