Resumen

RODRIGUEZ, L. F.; DZIB, S. A.; ZAPATA, L. A.  y  LOINARD, L.. Radio proper motions and a search for the origin of PSR B1849+00. Rev. mex. astron. astrofis [online]. 2024, vol.60, n.2, pp.397-402.  Epub 02-Dic-2025. ISSN 3061-8649.  https://doi.org/10.22201/ia.01851101p.2024.60.02.17.

Until now it has not been possible to obtain the proper motion of PSR B1849+00 with timing techniques or VLBI imaging, given the enhanced interstellar scattering along its line of sight. We present an analysis of archive Very Large Array observations at epochs from 2012 to 2022 that indicates a total proper motion of 23.9±5.5 mas yr−1 toward the southwest. After correction for the proper motions produced by galactic rotation, we find a peculiar transverse velocity of ≃740 km s−1. We searched unsuccessfully along the past trajectory of the pulsar for an associated supernova remnant. In particular, W44 is in this trajectory but its distance is different from that of PSR B1849+00.

Palabras llave : astrometry; proper motions; pulsars: general.

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