Gemini-LIGHTS: Herbig Ae/Be and Massive T Tauri Protoplanetary Disks Imaged with Gemini Planet Imager

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dc.citation.articleNumber109
dc.citation.issueNumber3
dc.citation.journalTitleThe Astronomical Journal
dc.citation.volumeNumber164
dc.contributor.authorRich, Evan A.
dc.contributor.authorMonnier, John D.
dc.contributor.authorAarnio, Alicia
dc.contributor.authorLaws, Anna S. E.
dc.contributor.authorSetterholm, Benjamin R.
dc.contributor.authorWilner, David J.
dc.contributor.authorCalvet, Nuria
dc.contributor.authorHarries, Tim
dc.contributor.authorMiller, Chris
dc.contributor.authorDavies, Claire L.
dc.contributor.authorAdams, Fred C.
dc.contributor.authorAndrews, Sean M.
dc.contributor.authorBae, Jaehan
dc.contributor.authorEspaillat, Catherine
dc.contributor.authorGreenbaum, Alexandra Z.
dc.contributor.authorHinkley, Sasha
dc.contributor.authorKraus, Stefan
dc.contributor.authorHartmann, Lee
dc.contributor.authorIsella, Andrea
dc.contributor.authorMcClure, Melissa
dc.contributor.authorOppenheimer, Rebecca
dc.contributor.authorPérez, Laura M.
dc.contributor.authorZhu, Zhaohuan
dc.date.accessioned2022-09-29T15:06:30Z
dc.date.available2022-09-29T15:06:30Z
dc.date.issued2022
dc.description.abstractWe present the complete sample of protoplanetary disks from the Gemini- Large Imaging with the Gemini Planet Imager Herbig/T Tauri Survey, which observed bright Herbig Ae/Be stars and T Tauri stars in near-infrared polarized light to search for signatures of disk evolution and ongoing planet formation. The 44 targets were chosen based on their near- and mid-infrared colors, with roughly equal numbers of transitional, pre-transitional, and full disks. Our approach explicitly did not favor well-known, “famous” disks or those observed by the Atacama Large Millimeter/submillimeter Array, resulting in a less-biased sample suitable to probe the major stages of disk evolution during planet formation. Our optimized data reduction allowed polarized flux as low as 0.002% of the stellar light to be detected, and we report polarized scattered light around 80% of our targets. We detected point-like companions for 47% of the targets, including three brown dwarfs (two confirmed, one new), and a new super-Jupiter-mass candidate around V1295 Aql. We searched for correlations between the polarized flux and system parameters, finding a few clear trends: the presence of a companion drastically reduces the polarized flux levels, far-IR excess correlates with polarized flux for nonbinary systems, and systems hosting disks with ring structures have stellar masses <3 M⊙. Our sample also included four hot, dusty “FS CMa” systems, and we detected large-scale ( >100 au) scattered light around each, signs of extreme youth for these enigmatic systems. Science-ready images are publicly available through multiple distribution channels using a new FITS file standard that has been jointly developed with members of the Very Large Telescope Spectro-polarimetric High-contrast Exoplanet Research team.
dc.identifier.citationRich, Evan A., Monnier, John D., Aarnio, Alicia, et al.. "Gemini-LIGHTS: Herbig Ae/Be and Massive T Tauri Protoplanetary Disks Imaged with Gemini Planet Imager." <i>The Astronomical Journal,</i> 164, no. 3 (2022) IOP Publishing: https://doi.org/10.3847/1538-3881/ac7be4.
dc.identifier.digitalRich_2022_AJ_164_109
dc.identifier.doihttps://doi.org/10.3847/1538-3881/ac7be4
dc.identifier.urihttps://hdl.handle.net/1911/113436
dc.language.isoeng
dc.publisherIOP Publishing
dc.rightsOriginal content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleGemini-LIGHTS: Herbig Ae/Be and Massive T Tauri Protoplanetary Disks Imaged with Gemini Planet Imager
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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