TY - GEN T1 - Limits on the Ejecta Mass During the Search for Kilonovae Associated with Neutron Star-Black Hole Mergers: A case study of S230518h, GW230529, S230627c and the Low-Significance Candidate S240422ed T2 - arXiv PY - 2025/03/19 AU - Pillas M AU - Antier S AU - Ackley K AU - Ahumada T AU - Akl D AU - de Almeida L AU - Anand S AU - Andrade C AU - Andreoni I AU - Bostroem KA AU - Bulla M et al ED - DO - DOI: 10.48550/arxiv.2503.15422 Y2 - 2026/03/30 ER -