The Massive Pulsar in the Binary System PSR J2215+5135 (image) Instituto de Astrofísica de Canarias (IAC) Share Print E-Mail Caption The massive pulsar in the binary system PSR J2215+5135, illustrated in the Figure, heats up the inner face of its companion star. Credit Gabriel Pérez, SMM (IAC). Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.