A deep X-ray spectral imaging of the bow-shock pulsar wind nebula associated with PSR B1929+10 S. I. Kim, C. Y. Hui, J. Lee, K. Oh, L. C. C. Lin and J. Takata A&A, 637 (2020) L7 Published online: 19 May 2020 DOI: 10.1051/0004-6361/202037873