Neutral hydrogen in the vicinity of the supernova remnant HB 9

作者：Gosachinskii I V^*

来源：Astronomy Letters, 2013, 39(3): 179-184.

DOI：10.1134/S1063773713020059

• interstellar medium
• supernova remnants
• neutral hydrogen

The neutral hydrogen emission at 21 cm has been investigated with the RATAN-600 radio telescope in the vicinity of the supernova remnant HB9. A clumpyHI shell with radial motions surrounding the remnant has been detected. Its measured parameters contradict the connection with a shock wave from a supernova explosion. The shell formation under the action of a wind from a star that exploded as a supernova at the end of its evolution seems more realistic. The characteristics of the star obtained from the observed shell parameters are the following: a wind power of 0.5 x 10(38) erg s(-1), a mass-loss rate of 3.7 x 10(-5) M-circle dot yr(-1), and an age of 3 x 10(6) yr. Given the measurement errors, the mass of the star is estimated to be > 8M(circle dot).

• 出版日期2013-3