Open AccessB1951+32 pulsar bow shock proper motion measurements based on Gemini North 8-m telescope and HST optical observations
Author(s) -
Vadim Abramkin,
Yu. A. Shibanov,
D. A. Zyuzin,
G. G. Pavlov
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1400/2/022009
Subject(s) - physics , pulsar , proper motion , bow shock (aerodynamics) , interferometry , astronomy , telescope , shock (circulatory) , astrophysics , radio telescope , shock wave , stars , medicine , thermodynamics
Using deep optical images of the core of the CTB 80 supernova remnant, obtained with 8-m Gemini-North telescope in 2016, and archival HST images of 1997, we measured the proper motion shift of a bright [OIII] structure ahead of the fast moving pulsar B1951+32 associated with the remnant. An arc shape of the structure suggests that it is a bow shock created by the supersonic motion of the pulsar in the ambient matter, while no direct evidence of that have been presented. The measured arc shift of ≈ 0.53″ is compatible with the pulsar proper motion shift of ≈ 0.6″ based on the radio interferometry measurements. This strongly supports the bow-shock nature of the structure.