dc.contributor.author | Yang, Jun | |
dc.contributor.author | Wik, Daniel R. | |
dc.contributor.author | Lehmer, Bret D. | |
dc.contributor.author | West, Lacey A. | |
dc.contributor.author | Williams, Benjamin F. | |
dc.contributor.author | Maccarone, Thomas J. | |
dc.contributor.author | Ptak, Andrew | |
dc.contributor.author | Yukita, Mihoko | |
dc.contributor.author | Vulic, Neven | |
dc.contributor.author | Walton, Dominic J. | |
dc.contributor.author | Garofali, Kristen | |
dc.contributor.author | Antoniou, Vallia | |
dc.date.accessioned | 2022-05-23T11:30:03Z | |
dc.date.available | 2022-05-23T11:30:03Z | |
dc.date.issued | 2022-05-04 | |
dc.identifier.citation | Yang , J , Wik , D R , Lehmer , B D , West , L A , Williams , B F , Maccarone , T J , Ptak , A , Yukita , M , Vulic , N , Walton , D J , Garofali , K & Antoniou , V 2022 , ' Young Black Hole and Neutron Star Systems in the Nearby Star-forming Galaxy M33: The NuSTAR View ' , The Astrophysical Journal , vol. 930 , no. 1 , 64 . https://doi.org/10.3847/1538-4357/ac6351 | |
dc.identifier.issn | 0004-637X | |
dc.identifier.other | Jisc: 290722 | |
dc.identifier.other | publisher-id: apjac6351 | |
dc.identifier.other | manuscript: ac6351 | |
dc.identifier.other | other: aas35754 | |
dc.identifier.other | ORCID: /0000-0001-5819-3552/work/128033194 | |
dc.identifier.uri | http://hdl.handle.net/2299/25513 | |
dc.description | © 2022. The Author(s). Published by the American Astronomical Society. This is an open access article distributed under the Creative Commons Attribution License, to view a copy of the license, see: https://creativecommons.org/licenses/by/4.0/ | |
dc.description.abstract | We can learn about the formation and evolution of compact objects, such as neutron stars and black holes (BHs), by studying the X-ray emission from accreting systems in nearby star-forming galaxies. The hard (E > 10 keV) X-ray emission in particular allows strong discrimination among the accretion states and compact object types. We conducted a NuSTAR survey (∼600 ks) of the Local Group spiral galaxy M33 to study the distribution of X-ray binary (XRB) accretors in an actively star-forming environment. We constructed color–intensity and color–color diagrams to infer XRB accretion states. Using these diagrams, we have classified 28 X-ray sources in M33 by comparing their hard X-ray colors to those of known systems. Four sources lie in the parameter space occupied by X-ray pulsars, while 8, 10, and 4 sources lie in the parameter space occupied by BHs in the hard, intermediate, and soft states, respectively. The known ultraluminous X-ray source M33 X-8 is also found to be consistent with that source type. Some sources overlap within the Z/Atoll sources due to the overlap of the two categories of BHs and Z/Atoll sources. In contrast to a similar NuSTAR survey of M31 (with a low-mass XRB-dominant population), the source population in M33 is dominated by high-mass XRBs (HMXBs), allowing the study of a very different population with similar sensitivity due to the galaxy's similar distance. This characterization of a population of HMXB accretion states will provide valuable constraints for theoretical XRB population synthesis studies to their formation and evolution. | en |
dc.format.extent | 10 | |
dc.format.extent | 1067507 | |
dc.language.iso | eng | |
dc.relation.ispartof | The Astrophysical Journal | |
dc.subject | 330 | |
dc.subject | High-Energy Phenomena and Fundamental Physics | |
dc.title | Young Black Hole and Neutron Star Systems in the Nearby Star-forming Galaxy M33: The NuSTAR View | en |
dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.3847/1538-4357/ac6351 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |