First detection of X-ray polarization in the symbiotic X-ray binary 4U 1954+319 with IXPE #17464



: Salganik, Alexander; Kong, Lingda; Forsblom, Sofia V.; Zhou, Menglei; Liu, Honghui; Tsygankov, Sergey S.; Santangelo, Andrea; Poutanen, Juri

: 2025

: Astronomer’s Telegram

: Astronomer's Telegram

: 17464

: 1920-406X

: https://www.astronomerstelegram.org/?read=17464


The symbiotic X-ray binary 4U 1954+319 hosts a slowly rotating pulsar with a spin period of about 5 h (ATel #797), one of the longest among known accreting neutron stars.



Last updated on 20/02/2026 12:45:28 PM