A Search for Unbound Stellar Companions to Pulsar J1124-5916
C. S. Kochanek (1) ((1) Department of Astronomy, The^TM Ohio State, University)

TL;DR
This study searched for unbound stellar companions to pulsar J1124-5916 and found none above 3 solar masses, providing insights into the binary status of supernova progenitors.
Contribution
It presents the first systematic search for high-mass unbound companions to this pulsar, constraining its binary history.
Findings
No high-mass unbound companions found
Lower mass candidates likely false positives
Progenitor unlikely part of a triple system
Abstract
We searched for and found no higher mass (>3Msun) unbound binary stellar companions to the progenitor of pulsar J1124-5916. There are lower mass candidates, but they all have high probabilities of being false positives. There are no candidates for it now being a fully unbound triple system. Even if one of the lower mass candidates is an unbound companion, it seems unlikely that it could have contributed to stripping the progenitor prior to the supernova. The stars are too low mass to be significant mass gainers, and they are too slowly moving to be the survivors of a compact, post-common envelope binary. The addition of one more system slightly improves the statistical constraints on the binary and triple status of supernova progenitors just before and after death.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
