Kino, Motoki https://orcid.org/0000-0002-2709-7338
Nagashima, Masahiro https://orcid.org/0000-0003-2938-7096
Ro, Hyunwook https://orcid.org/0000-0002-7322-6436
Cui, Yuzhu https://orcid.org/0000-0001-6311-4345
Hada, Kazuhiro https://orcid.org/0000-0001-6906-772X
Park, Jongho https://orcid.org/0000-0001-6558-9053
Article Title: Constraining the Mass of a Hypothetical Secondary Black Hole in M87 with the NANOGrav 15 yr Data Set
Journal Title: The Astrophysical Journal
Article Type: paper
Copyright Information: © 2025. The Author(s). Published by the American Astronomical Society.
Publication dates
Date Received: 2025-03-07
Date Accepted: 2025-04-18
Online publication date: 2025-06-05