Abstract
THE distance estimates for pulsars based on an interstellar electron density <ne> = 0.1 cm−3 have recently been questioned. Habing and Pottasch1 raise objections recalling the temperature dependence of <ne>, Shuter et al.2 take an observational approach by discussing the 21 cm emission measurements, and de Jager et al.3 report that CP 0328 has a distance of at least 4.2 kpc, for its signals show the 21 cm absorption of the Perseus arm. Here we discuss the problem of distance estimates in a more general way.
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GREWING, M., MEBOLD, U. & ROHLFS, K. Distance Estimates for Pulsars. Nature 221, 751–753 (1969). https://doi.org/10.1038/221751a0
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DOI: https://doi.org/10.1038/221751a0
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