Revisiting the birth locations of pulsars B1929+10, B2020+28, and B2021+51

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Table 7

Parallax- vs. DM-based distances.

	DM	d_π^a	d_NE2001^b	d_TC93^c
Source	[pccm^-3]	[kpc]	[kpc]	[kpc]

B1929+10	3.180 (4)		0.34	0.17
B2020+28	24.640 (3)		2.11	1.30
B2021+51	22.648 (6)		1.94	1.22

Notes. Except for d_π, all values were taken from the ATNF pulsar catalogue.

^(a)

Parallax-based distances derived in this work.

^(b)

Distance estimate based on the Galactic electron density model from Cordes & Lazio (2003).

^(c)

Distance estimate based on the Galactic electron density model from Taylor et al. (1993).

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