Table 3
Scintillation-arc properties for nine pulsars with clearly detected scintillation arcs in our LOFAR data.
PSR Name | MJD | Freq. (MHz) | η(s3) | Ls,‖ (au) | ![]() |
![]() |
Dp(kpc) |
---|---|---|---|---|---|---|---|
J0814+7429 | 57872 | 120–130 | 3.3(1) | 0.05 | 350(13) | uniform or 275–355 (a) | 0.433(8)(b) |
J0826+2637 | 58820 | 145–155 | 2.3(7) | 0.19 | 180(50) | (140, 190, 375, 470)(c) 240 ± 90 (e) | 0.5 (d) |
J0837+0610 | 58867 | 145–155 | 4.90(2) | 0.12 | 330(30) | 460 ± 80 420(g), 410 ± 40 (h) 420 ± 90 (e) | 0.62(6)(i) |
J0953+0755 | 57391 | 130–170 | 4.8(7) | ≥0.01 | 230(35) | 4.4–16.4 and 26–170 (j) | 0.262(5)(b) |
J1136+1551 | 57122 | 145–155 | 0.37(3) | 0.09 | 120(12) | (21, 56, 136, 189)(c), ≥136 (k) | 0.35(2)(b) |
J1921+2153 | 58356 | 145–155 | 4.4(1) | ≥0.14 | 500(15) | uniform or 360 (l) | 0.81 (m) |
J1932+1059 | 59213 | 145–155 | 3.0(1) | 0.04 | 180(10) | (73, 202, 301)(c), 200 ± 20(n), 240 ± 30 (e), 190 ± 50 (e) | 0.33(1)(b) |
J2018+2839 | 58844 | 170–180 | 74(5) | ≥0.15 | 500(60) or 390(45) | ≤100 or 550 ± 30 (e) | 0.95(9)b |
J2219+4754 | 58863 | 145–155 | 50(9) | – | – | – | 2.39 (m) |
Notes. Given are the pulsar name, the date of the observation from which the arc parameters were derived, the range of frequencies, the arc curvature η, the spatial scale of the scattering screen Ls,||, the lower limit on the distance between the scattering screen and Earth , any previously published estimates for the screen distance Ds, and the assumed pulsar distance Dp. Numbers in brackets give the nominal 1-σ uncertainty in the last digit quoted and references are given as superscripted letters and are listed below the table. Screen distances from literature were corrected for potential mismatches in pulsar distances used and they are hence directly comparable with our results.
References. (a)(Rickett et al. 2000), (b)(Brisken et al. 2002),(c) (Putney & Stinebring 2006),(d) (Deller et al. 2019),(e) (Fadeev et al. 2018),(f) (Hill et al. 2005),(g) (Brisken et al. 2010),(h) (Smirnova et al. 2020),(i) (Liu et al. 2016),(j) (Smirnova et al. 2014),(k) (Stinebring et al. 2019), (l)(Shishov et al. 2017),(m) (Yao et al. 2017), and (n) (Yao et al. 2020).
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