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The PDS 110 observing campaign - photometric and spectroscopic observations reveal eclipses are aperiodic

Osborn, H. P. and Kenworthy, M. and Rodriguez, J. E. and de Mooij, E. J. W. and Kennedy, G. M. and Relles, H. and Gomez, E. and Hippke, M. and Banfi, M. and Barbieri, L. and Becker, I. S. and Benni, P. and Berlind, P. and Bieryla, A. and Bonnoli, G. and Boussier, H. and Brincat, S. M. and Briol, J. and Burleigh, M. R. and Butterley, T. and Calkins, M. L. and Chote, P. and Ciceri, S. and Deldem, M. and Dhillon, V. S. and Dose, E. and Dubois, F. and Dvorak, S. and Esquerdo, G. A. and Evans, D. F. and Ferratfiat, S. and Fossey, S. J. and Gunther, M. N. and Hall, J. and Hambsch, F.-J. and Herrero, E. and Hills, K. and James, R. and Jayawardhana, R. and Kafka, S. and Killestein, T. L. and Kotnik, C. and Latham, D. W. and Lemay, D. and Lewin, P. and Littlefair, S. and Lopresti, C. and Mallonn, M. and Mancini, L. and Marchini, A. and McCormac, J. J. and Murawski, G. and Myers, G. and Papini, R. and Popov, V. and Quadri, U. and Quinn, S. N. and Raynard, L. and Rizzuti, L. and Robertson, J. and Salvaggio, F. and Scholz, A. and Sfair, R. and Smith, Alexis and Southworth, J. and Tan, T. G. and Vanaverbeke, S. and Waagen, E. O. and Watson, C. A. and West, R. G. and Winter, O. C. and Wheatley, P. J. and Wilson, R. W. and Zhou, G. (2019) The PDS 110 observing campaign - photometric and spectroscopic observations reveal eclipses are aperiodic. Monthly Notices of the Royal Astronomical Society, 485, pp. 1614-1625. Oxford University Press. DOI: 10.1093/mnras/stz283 ISSN 0035-8711

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Abstract

PDS 110 is a young disc-hosting star in the Orion OB1A association. Two dimming events of similar depth and duration were seen in 2008 (WASP) and 2011 (KELT), consistent with an object in a closed periodic orbit. In this paper, we present data from a ground-based observing campaign designed to measure the star both photometrically and spectroscopically during the time of predicted eclipse in 2017 September. Despite high-quality photometry, the predicted eclipse did not occur, although coherent structure is present suggesting variable amounts of stellar flux or dust obscuration. We also searched for radial velocity (RV) oscillations caused by any hypothetical companion and can rule out close binaries to 0.1Ms. A search of Sonneberg plate archive data also enabled us to extend the photometric baseline of this star back more than 50 yr, and similarly does not re-detect any deep eclipses. Taken together, they suggest that the eclipses seen in WASP and KELT photometry were due to aperiodic events. It would seem that PDS 110 undergoes stochastic dimmings that are shallower and of shorter duration than those of UX Ori variables, but may have a similar mechanism.

Item URL in elib:https://elib.dlr.de/127582/
Document Type:Article
Title:The PDS 110 observing campaign - photometric and spectroscopic observations reveal eclipses are aperiodic
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Osborn, H. P.Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, F-13388 Marseille, France; 0000-0002-4047-4724UNSPECIFIED
Kenworthy, M.Leiden Observatory, Leiden University, PO Box 9513, NL-2300 RA Leiden, the Netherlands 0000-0002-7064-8270UNSPECIFIED
Rodriguez, J. E.Harvard-Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA 02138, USAUNSPECIFIED
de Mooij, E. J. W.Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK 0000-0001-6391-9266UNSPECIFIED
Kennedy, G. M.Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA 0000-0001-6831-7547UNSPECIFIED
Relles, H.School of Physical Sciences, Centre for Astrophysics and Relativity, Dublin City University, Glasnevin, Dublin 9, IrelandUNSPECIFIED
Gomez, E.School of Physical Sciences, Centre for Astrophysics and Relativity, Dublin City University, Glasnevin, Dublin 9, IrelandUNSPECIFIED
Hippke, M.Sonneberg Observatory, Sternwarte str 32, D-96515 Sonneberg, Germany 0000-0002-0794-6339UNSPECIFIED
Banfi, M.AAVSO Contributor.UNSPECIFIED
Barbieri, L.AAVSO Contributor.UNSPECIFIED
Becker, I. S.UNESP-Sã Paulo State University, Grupo de Dinâmica Orbital e Planetologia, CEP 12516-410 Guaratinguetá, SP, BrazilUNSPECIFIED
Benni, P.Acton Sky Portal (Private observatory), Acton, MA, USAUNSPECIFIED
Berlind, P.Harvard-Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA 02138, USAUNSPECIFIED
Bieryla, A.Harvard-Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA 02138, USAUNSPECIFIED
Bonnoli, G.Astronomical Observatory, Dipartimento di Scienze Fisiche, della Terra e dell'Ambiente, University of Siena, 53100, ItalyUNSPECIFIED
Boussier, H.AAVSO Contributor.UNSPECIFIED
Brincat, S. M.AAVSO Contributor.UNSPECIFIED
Briol, J.AAVSO Contributor.UNSPECIFIED
Burleigh, M. R.Department of Physics and Astronomy, Leicester Institute of Space and Earth Observation, University of Leicester, Leicester, LE1 7RH, UKUNSPECIFIED
Butterley, T.Centre for Advanced Instrumentation, Department of Physics, University of Durham, South Road, Durham DH1 3LE, UKUNSPECIFIED
Calkins, M. L.Harvard-Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA 02138, USAUNSPECIFIED
Chote, P.Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Ciceri, S.Department of Astronomy, Stockholm University, Alba Nova University Center, SE-106 91 Stockholm, SwedenUNSPECIFIED
Deldem, M.AAVSO Contributor.UNSPECIFIED
Dhillon, V. S.Department of Physics, Astronomy, University of Sheffield, Sheffield, S3 7RH, UK; Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, SpainUNSPECIFIED
Dose, E.AAVSO Contributor.UNSPECIFIED
Dubois, F.astroLAB IRIS, Verbrandemolenstraat 5, B-8902 Zillebeke, BelgiumUNSPECIFIED
Dvorak, S.AAVSO Contributor.UNSPECIFIED
Esquerdo, G. A.Harvard-Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA 02138, USAUNSPECIFIED
Evans, D. F.Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UKUNSPECIFIED
Ferratfiat, S.AAVSO Contributor.UNSPECIFIED
Fossey, S. J.UCL Observatory (UCLO), 553 Watford Way, Mill Hill, London NW7 2QS, UK; Department of Physics and Astronomy, University College London, Gower St, London WC1E 6BT, UKUNSPECIFIED
Gunther, M. N.Astrophysics Group, Cavendish Laboratory, J.J. Thomson Avenue, Cambridge CB3 0HE, UK 0000-0002-3164-9086UNSPECIFIED
Hall, J.AAVSO Contributor.UNSPECIFIED
Hambsch, F.-J.Vereniging Voor Sterrenkunde (VVS), Brugge, BE-8000, BelgiumUNSPECIFIED
Herrero, E.Montsec Astronomical Observatory (OAdM), Institut d'Estudis Espacials de Catalunya (IEEC), 08034, Barcelona, SpainUNSPECIFIED
Hills, K.AAVSO Contributor.UNSPECIFIED
James, R.AAVSO Contributor.UNSPECIFIED
Jayawardhana, R.Physics, Astronomy, York University, Toronto, Ontario L3T 3R1, CanadaUNSPECIFIED
Kafka, S.American Association of Variable Star Observers, 49 Bay State Road, Cambridge, MA 02138, USAUNSPECIFIED
Killestein, T. L.Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Kotnik, C.AAVSO Contributor.UNSPECIFIED
Latham, D. W.Harvard-Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA 02138, USAUNSPECIFIED
Lemay, D.AAVSO Contributor.UNSPECIFIED
Lewin, P.AAVSO Contributor.UNSPECIFIED
Littlefair, S.Department of Physics, Astronomy, University of Sheffield, Sheffield, S3 7RH, UKUNSPECIFIED
Lopresti, C.AAVSO Contributor.UNSPECIFIED
Mallonn, M.Leibniz-Institut für Astrophysik Potsdam (AIP), An der Sternwarte 16, D-14482 Potsdam, GermanyUNSPECIFIED
Mancini, L.Department of Physics, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, I-00133 - Roma, Italy; Max-Planck-Institut für Astronomie Königstuhl 17, D-69117 Heidelberg, Germany; INAF - Astrophysical Observatory of Turin, Via Osservatorio 20, IUNSPECIFIED
Marchini, A.Astronomical Observatory, Dipartimento di Scienze Fisiche, della Terra e dell'Ambiente, University of Siena, 53100, ItalyUNSPECIFIED
McCormac, J. J.Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USAUNSPECIFIED
Murawski, G.Faculty of Medicine, Medical University of Bialystok, PL-15-089 Bialystok, PolandUNSPECIFIED
Myers, G.American Association of Variable Star Observers, 49 Bay State Road, Cambridge, MA 02138, USAUNSPECIFIED
Papini, R.AAVSO Contributor.UNSPECIFIED
Popov, V.Department of Physics and Astronomy, Shumen University, 9700 Shumen, BulgariaUNSPECIFIED
Quadri, U.AAVSO Contributor.UNSPECIFIED
Quinn, S. N.Harvard-Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA 02138, USAUNSPECIFIED
Raynard, L.Department of Physics and Astronomy, Leicester Institute of Space and Earth Observation, University of Leicester, Leicester, LE1 7RH, UKUNSPECIFIED
Rizzuti, L.AAVSO Contributor.UNSPECIFIED
Robertson, J.Arkansas Tech University, 1701 N. Boulder Ave. Russellville, AR 72801-2222, USAUNSPECIFIED
Salvaggio, F.AAVSO Contributor.UNSPECIFIED
Scholz, A.SUPA, School of Physics, Astronomy, North Haugh, St Andrews, KY16 9SS, UKUNSPECIFIED
Sfair, R.UNESP-Sã Paulo State University, Grupo de Dinâmica Orbital e Planetologia, CEP 12516-410 Guaratinguetá, SP, Brazil 0000-0002-4939-013XUNSPECIFIED
Smith, AlexisAlexis.Smith (at) dlr.deUNSPECIFIED
Southworth, J.Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UKUNSPECIFIED
Tan, T. G.Perth Exoplanet Survey Telescope (PEST), Perth, AustraliaUNSPECIFIED
Vanaverbeke, S.astroLAB IRIS, Verbrandemolenstraat 5, B-8902 Zillebeke, BelgiumUNSPECIFIED
Waagen, E. O.Montsec Astronomical Observatory (OAdM), Institut d'Estudis Espacials de Catalunya (IEEC), 08034, Barcelona, SpainUNSPECIFIED
Watson, C. A.Astrophysics Research Centre, Queen's University Belfast, Belfast BT7 1NN, UKUNSPECIFIED
West, R. G.Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA 0000-0001-6604-5533UNSPECIFIED
Winter, O. C.UNESP-Sã Paulo State University, Grupo de Dinâmica Orbital e Planetologia, CEP 12516-410 Guaratinguetá, SP, Brazil 0000-0002-4901-3289UNSPECIFIED
Wheatley, P. J.Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA 0000-0003-1452-2240UNSPECIFIED
Wilson, R. W.Centre for Advanced Instrumentation, Department of Physics, University of Durham, South Road, Durham DH1 3LE, UKUNSPECIFIED
Zhou, G.Harvard-Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA 02138, USA)UNSPECIFIED
Date:2019
Journal or Publication Title:Monthly Notices of the Royal Astronomical Society
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:485
DOI :10.1093/mnras/stz283
Page Range:pp. 1614-1625
Publisher:Oxford University Press
ISSN:0035-8711
Status:Published
Keywords:protoplanetary discs, stars: individual:PDS 110, stars: variables: T Tauri, Herbig Ae/Be
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt COROT Beteiligung
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Deposited By: Smith, Alexis
Deposited On:13 Jun 2019 11:09
Last Modified:06 Sep 2019 15:17

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