Detecting the Black Hole Candidate Population in M51’s Young Massive Star Clusters: Constraints on Accreting Intermediate Mass Black Holes

作     者：Dage, Kristen C. Tremou, Evangelia Otahola, Bolivia Cuevas Koch, Eric W. Oh, Kwangmin Plotkin, Richard M. Tang, Vivian L. Aldhalemi, Muhammad Ridha Bustani, Zainab Fawaz, Mariam Ismail Harff, Hans J. Khalyleh, Amna McBride, Timothy Mason, Jesse Preston, Anthony Rinehart, Cortney Vinson, Ethan Anderson, Gemma Cackett, Edward M. Fu, Shih Ching Kamann, Sebastian Panurach, Teresa Pechetti, Renuka Saikia, Payaswini Sett, Susmita Urquhart, Ryan Usher, Christopher 

作者机构：International Centre for Radio Astronomy Research Curtin University GPO Box U1987 PerthWA6845 Australia National Radio Astronomy Observatory SocorroNM87801 United States Departamento de Matemáticas-FCE Benemérita Universidad Autónoma de Puebla Mexico Center for Astrophysics Harvard & Smithsonian 60 Garden St. CambridgeMA02138 United States Center for Data Intensive and Time Domain Astronomy Department of Physics and Astronomy Michigan State University East LansingMI48824 United States Department of Physics University of Nevada RenoNV89557 United States Nevada Center for Astrophysics University of Nevada Las VegasNV89154 United States Department of Astronomy & Astrophysics University of California 1156 High Street Santa CruzCA95064 United States Henry Ford College 5101 Evergreen Rd DearbornMI48128 United States Department of Physics & Astronomy Wayne State University 666 W. Hancock St DetroitMI48201 United States Astrophysics Research Institute Liverpool John Moores University IC2 Liverpool Science Park 146 Brownlow Hill LiverpoolL3 5RF United Kingdom Center for Materials Research Department of Physics Norfolk State University NorfolkVA23504 United States Center for Astro Particle and Planetary Physics New York University Abu Dhabi PO Box 129188 Abu Dhabi United Arab Emirates The Oskar Klein Centre Department of Astronomy Stockholm University AlbaNova StockholmSE-106 91 Sweden 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2024年

核心收录：

主　　题：Giant stars 

摘      要：Intermediate mass black holes (102 BH 5M☉) are an open question in our understanding of black hole evolution and growth. They have long been linked to dense star cluster environments thanks to cluster dynamics, but there are a limited number of secure detections. We leverage existing X-ray observations from Chandra X-ray Observatory and optical catalogs from Hubble Space Telescope with new radio observations from the Karl G. Jansky Very Large Array to search for any evidence of accreting black holes in young massive clusters in the nearby galaxy M51. We find that of 43 bright (LX 1038 erg/s) X-ray point sources in M51, 24 had probable matches to objects including possible associated star clusters in the HST Legacy Extragalactic UV Survey catalog, seven of which were classified as contaminants (background galaxies or foreground stars). We explore the optical properties of the remaining 17 sources, including cluster age and mass estimates, and search for radio counterparts in the 8-12 GHz band. The lack of radio counterparts to X-ray sources we know to be associated with young massive clusters in M51 suggests that we do not significantly detect hard-state IMBHs ∼ 104M☉ or above. However, more sensitive radio facilities like the Square Kilometre Array and next generation Very Large Array may be able to provide evidence for IMBHs with masses down to ∼ 103M☉ Copyright © 2024, The Authors. All rights reserved.