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X-ray detection of the most extreme star-forming galaxies at the cosmic noon via strong lensing

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dc.contributoret. al.
dc.contributor.authorWang, Q Daniel
dc.contributor.authorDiaz, Carlos Garcia
dc.contributor.authorYun, Min S
dc.date2024-03-27T16:18:04.000
dc.date.accessioned2024-04-26T08:26:33Z
dc.date.available2024-03-27T00:00:00Z
dc.date.issued2024-01-01
dc.description.abstractHyperluminous infrared galaxies (HyLIRGs) are the most extreme star-forming systems observed in the early Universe, and their properties still elude comprehensive understanding. We have undertaken a large XMM–Newton observing programme to probe the total accreting black hole population in three HyLIRGs at z = 2.12, 3.25, and 3.55, gravitationally lensed by foreground galaxies. Selected from the Planck All-Sky Survey to Analyse Gravitationally lensed Extreme Starbursts (PASSAGES), these HyLIRGs have apparent infrared luminosities >1014 L⊙. Our observations revealed X-ray emission in each of them. PJ1336+49 appears to be dominated by high-mass X-ray binaries (HMXBs). Remarkably, the luminosity of this non-AGN X-ray emission exceeds by a factor of about 3 the value obtained by calibration with local galaxies with much lower star formation rates. This enhanced X-ray emission most likely highlights the efficacy of dynamical HMXB production within compact clusters, which is an important mode of star formation in HyLIRGs. The remaining two (PJ0116−24 and PJ1053+60) morphologically and spectrally exhibit a compact X-ray component in addition to the extended non-AGN X-ray emission, indicating the presence of Active Galactic Nuclei (AGNs). The AGN appears to be centrally located in the reconstructed source plane images of PJ0116−24, which manifests its star-forming activity predominantly within an extended galactic disc. In contrast, the AGN in the field of PJ1053+60 is projected 60 kpc away from the extreme star-forming galaxy and could be ejected from it. These results underline the synergistic potential of deep X-ray observations with strong lensing for the study of high-energy astrophysical phenomena in HyLIRGs.
dc.identifier.doihttps://doi.org/10.1093/mnras/stad3827
dc.identifier.urihttps://hdl.handle.net/20.500.14394/2813
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.relation.urlhttps://scholarworks.umass.edu/cgi/viewcontent.cgi?article=2182&context=astro_faculty_pubs&unstamped=1
dc.rightsUMass Amherst Open Access Policy
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.source.issue4
dc.source.issue527
dc.source.statuspublished
dc.subjectgravitational lensing: strong
dc.subjectgalaxies: high-redshift
dc.subjectgalaxies: nuclei
dc.subjectgalaxies: starburst
dc.subjectX-rays: binaries
dc.subjectX-rays: galaxies
dc.subjectAstrophysics and Astronomy
dc.titleX-ray detection of the most extreme star-forming galaxies at the cosmic noon via strong lensing
dc.typearticle
dc.typearticle
digcom.contributor.authorWang, Q Daniel
digcom.contributor.authorDiaz, Carlos Garcia
digcom.contributor.authorYun, Min S
digcom.date.embargo2024-03-27T00:00:00-07:00
digcom.identifierastro_faculty_pubs/1183
digcom.identifier.contextkey36834250
digcom.identifier.submissionpathastro_faculty_pubs/1183
dspace.entity.typePublication
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