• Login
    View Item 
    •   Home
    • UA Faculty Research
    • UA Faculty Publications
    • View Item
    •   Home
    • UA Faculty Research
    • UA Faculty Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA CatalogsUA Libraries

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Are inner disc misalignments common? ALMA reveals an isotropic outer disc inclination distribution for young dipper stars

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    stz3361.pdf
    Size:
    4.001Mb
    Format:
    PDF
    Description:
    Final Published Version
    Download
    Author
    Ansdell, M
    Gaidos, E
    Hedges, C
    Tazzari, M
    Kraus, A L
    Wyatt, M C
    Kennedy, G M
    Williams, J P
    Mann, A W
    Angelo, I
    Dûchene, G
    Mamajek, E E
    Carpenter, J
    Esplin, T L
    Rizzuto, A C
    Show allShow less
    Affiliation
    Univ Arizona, Steward Observ
    Issue Date
    2019-12-02
    Keywords
    planet-star interactions
    protoplanetary discs
    binaries: visual
    stars: variables: T Tauri, Herbig Ae/Be
    
    Metadata
    Show full item record
    Publisher
    OXFORD UNIV PRESS
    Citation
    M Ansdell, E Gaidos, C Hedges, M Tazzari, A L Kraus, M C Wyatt, G M Kennedy, J P Williams, A W Mann, I Angelo, G Dûchene, E E Mamajek, J Carpenter, T L Esplin, A C Rizzuto, Are inner disc misalignments common? ALMA reveals an isotropic outer disc inclination distribution for young dipper stars, Monthly Notices of the Royal Astronomical Society, Volume 492, Issue 1, February 2020, Pages 572–588, https://doi.org/10.1093/mnras/stz3361
    Journal
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
    Rights
    Copyright © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model)
    Collection Information
    This 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.
    Abstract
    Dippers are a common class of young variable star exhibiting day-long dimmings with depths of up to several tens of per cent. A standard explanation is that dippers host nearly edge-on (i(d) approximate to 70 degrees) protoplanetary discs that allow close-in (<1 au) dust lifted slightly out of the mid-plane to partially occult the star. The identification of a face-on dipper disc and growing evidence of inner disc misalignments brings this scenario into question. Thus, we uniformly (re)derive the inclinations of 24 dipper discs resolved with (sub-)mm interferometry from ALMA. We find that dipper disc inclinations are consistent with an isotropic distribution over i(d) approximate to 0-75 degrees, above which the occurrence rate declines (likely an observational selection effect due to optically thick disc mid-planes blocking their host stars). These findings indicate that the dipper phenomenon is unrelated to the outer (>10 au) disc resolved by ALMA and that inner disc misalignments may be common during the protoplanetary phase. More than one mechanism may contribute to the dipper phenomenon, including accretion-driven warps and 'broken' discs caused by inclined (sub-)stellar or planetary companions.
    ISSN
    0035-8711
    DOI
    10.1093/mnras/stz3361
    Version
    Final published version
    ae974a485f413a2113503eed53cd6c53
    10.1093/mnras/stz3361
    Scopus Count
    Collections
    UA Faculty Publications

    entitlement

     
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055
    Tel 520-621-6442 | repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.