A Possible Optical Counterpart for the Triple Pulsar System PSR B1620-26

Abstract

We have searched deep optical images of the globular cluster M4 for a possible optical counterpart for the third body in the PSR B1620-26 system. We identify as a possible optical counterpart a star located within $0.3^{\prime \prime }$ of the nominal pulsar position with $V\approx 20$. This magnitude is consistent with a main sequence cluster member with $M\approx 0.45M_{\odot }$. However, this star may be blended with fainter stars, and the probability of a chance superposition is non-negligible.

8 pages in uuencoded compressed postscript, to appear in ApJ Letters, Yale Preprint 25-07-94

Cited by in corpus (4)

• A Young White Dwarf Companion to Pulsar 1620-26: Evidence for Early Planet Formation
• Theoretical Implications of the PSR B1620-26 Triple System and its Planet
• Distant Companions and Planets around Millisecond Pulsars
• Gravitational Radiation from Triple Star Systems