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dc.contributor.authorYelverton, Ben
dc.contributor.authorKennedy, Grant M
dc.contributor.authorSu, Kate Y L
dc.contributor.authorWyatt, Mark C
dc.date.accessioned2019-10-09T20:39:00Z
dc.date.available2019-10-09T20:39:00Z
dc.date.issued2019-09
dc.identifier.citationBen Yelverton, Grant M Kennedy, Kate Y L Su, Mark C Wyatt, A statistically significant lack of debris discs in medium separation binary systems, Monthly Notices of the Royal Astronomical Society, Volume 488, Issue 3, September 2019, Pages 3588–3606, https://doi.org/10.1093/mnras/stz1927en_US
dc.identifier.issn0035-8711
dc.identifier.doi10.1093/mnras/stz1927
dc.identifier.urihttp://hdl.handle.net/10150/634723
dc.description.abstractWe compile a sample of 341 binary and multiple star systems with the aim of searching for and characterizing Kuiper belt-like debris discs. The sample is assembled by combining several smaller samples studied in previously published work with targets from two unpublished Herschel surveys. We find that 38 systems show excess emission at 70 or 100 mu m suggestive of a debris disc. While nine of the discs appear to be unstable to perturbations from their host binary based on a simple analysis of their inferred radii, we argue that the evidence for genuine instability is not strong, primarily because of uncertainty in the true disc radii, uncertainty in the boundaries of the unstable regions, and orbital projection effects. The binary separation distributions of the disc-bearing and disc-free systems are different at a confidence level of 99.4 per cent, indicating that binary separation strongly influences the presence of detectable levels of debris. No discs are detected for separations between similar to 25 and 135 au; this is likely a result of binaries whose separations are comparable with typical disc radii clearing out their primordial circumstellar or circumbinary material via dynamical perturbations. The disc detection rate is 19(-3)(+5) per cent for binaries wider than 135 au, similar to the published results for single stars. Only 8(-1)(+2) per cent of systems with separations below 25 au host a detectable disc, which may suggest that planetesimal formation is inhibited in binaries closer than a few tens of au, similar to the conclusions of studies of known planet-hosting binaries.en_US
dc.description.sponsorshipScience and Technology Facilities Council studentship; Royal SocietyRoyal Society of Londonen_US
dc.language.isoenen_US
dc.publisherOXFORD UNIV PRESSen_US
dc.rights© 2019 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society.en_US
dc.subjectbinaries: generalen_US
dc.subjectcircumstellar matteren_US
dc.titleA statistically significant lack of debris discs in medium separation binary systemsen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Steward Observen_US
dc.identifier.journalMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETYen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.volume488
dc.source.issue3
dc.source.beginpage3588-3606
refterms.dateFOA2019-10-09T20:39:01Z


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