Radio pulsar discovered from supernova remnant

arXiv: a radio pulsar was discovered in the supernova remnant CTB 87

Astronomers at Nanjing University in China have discovered a radio pulsar in a supernova remnant known as CTB 87, according to a paper published in the journal arXiv.

(a wind-fueled pulsar supernova remnant) with an X-ray luminosity nearly 100 times fainter than that of the Crab Nebula, in the range of 0.15-3 kiloelectronvolts. In the new work, scientists were finally able to detect the pulsar itself. Astronomers have studied a point source of X-ray radiation in CTB 87, designated CXOU J201609.2+371110. Using the FAST radio telescope, radio pulses from this source were detected, which made it possible to confirm its compact nature.

PSR J2016+3711, located at a distance of about 43,400 light years, has a rotation period of 50.8 milliseconds and a dispersion measure (characterizing the number of electrons along the entire path of radiation from the pulsar) of approximately 428 parsecs per cubic centimeter. The pulsar’s luminosity was 22 undecillion ergs per second, and its characteristic age is estimated at 11,100 years. Thus, PSR J2016+3711 is the first pulsar in a supernova remnant discovered by FAST.