The PDS 110 observing campaign - photometric and spectroscopic observations reveal eclipses are aperiodic
PDS 110 is a young disk-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 measur...
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| creator | Osborn, Hugh P Kenworthy, Matthew Rodriguez, Joseph E Ernst J W de Mooij Kennedy, Grant M Relles, Howard Gomez, Edward Hippke, Michael Banfi, Massimo Barbieri, Lorenzo Becker, Igor Benni, Paul Berlind, Perry Bieryla, Allyson Bonnoli, Giacomo Boussier, Hubert Brincat, Stephen Briol, John Burleigh, Matthew Butterley, Tim Calkins, Michael L Chote, Paul Ciceri, Simona Deldem, Marc Dhillon, Vik S Dose, Eric Dubois, Frank Dvorak, Shawn Esquerdo, Gilbert A Evans, Daniel Stephane Ferratfiat Dagot Berangez Fossey, Stephen Güenther, Maximilian N Hall, John Hambsch, Josch Enrique Herrero Casas Hills, Kevin James, Robert Kafka, Stella Killestein, Thomas L Kotnik, Clifford Latham, David W Lemay, Damien Lewin, Pablo Littlefair, Stuart Lopresti, Claudio Mallonn, Matthias Mancini, Luigi Marchini, Alessandro McCormac, James J Murawski, Gabriel Myers, Gordon Papini, Ricardo Popov, Velimir Quadri, Ulisse Quinn, Samuel N Raynard, Liam Rizzuti, Luca Roa, James Robertson, Jeff Salvaggio, Fabio Scholz, Alexander Sfair, Rafael Smith, Alexis M S Southworth, John Tan, T G Vanaverbeke, Sigfried Waagen, Elizabeth O Watson, Christopher West, Richard Wheatley, P J Wilson, Richard W Winter, Othon C Zhou, George |
| description | PDS 110 is a young disk-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 September 2017. 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 RV oscillations caused by any hypothetical companion and can rule out close binaries to 0.1 \(M_\odot\). A search of Sonneberg plate archive data also enabled us to extend the photometric baseline of this star back more than 50 years, 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 shorter-duration than those of UX Ori variables, but may have a similar mechanism. |
| doi_str_mv | 10.48550/arxiv.1901.07981 |
| format | Article |
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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 September 2017. 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 RV oscillations caused by any hypothetical companion and can rule out close binaries to 0.1 \(M_\odot\). A search of Sonneberg plate archive data also enabled us to extend the photometric baseline of this star back more than 50 years, 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 shorter-duration than those of UX Ori variables, but may have a similar mechanism.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1901.07981</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Binary stars ; Companion stars ; Dimming ; Eclipses ; Ground-based observation ; Photometry ; Physics - Earth and Planetary Astrophysics ; Physics - Solar and Stellar Astrophysics ; Plates (structural members)</subject><ispartof>arXiv.org, 2019-01</ispartof><rights>2019. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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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 September 2017. 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 RV oscillations caused by any hypothetical companion and can rule out close binaries to 0.1 \(M_\odot\). A search of Sonneberg plate archive data also enabled us to extend the photometric baseline of this star back more than 50 years, 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 shorter-duration than those of UX Ori variables, but may have a similar mechanism.</description><subject>Binary stars</subject><subject>Companion stars</subject><subject>Dimming</subject><subject>Eclipses</subject><subject>Ground-based observation</subject><subject>Photometry</subject><subject>Physics - Earth and Planetary Astrophysics</subject><subject>Physics - Solar and Stellar Astrophysics</subject><subject>Plates (structural 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Fabio</creatorcontrib><creatorcontrib>Scholz, Alexander</creatorcontrib><creatorcontrib>Sfair, Rafael</creatorcontrib><creatorcontrib>Smith, Alexis M S</creatorcontrib><creatorcontrib>Southworth, John</creatorcontrib><creatorcontrib>Tan, T G</creatorcontrib><creatorcontrib>Vanaverbeke, Sigfried</creatorcontrib><creatorcontrib>Waagen, Elizabeth O</creatorcontrib><creatorcontrib>Watson, Christopher</creatorcontrib><creatorcontrib>West, Richard</creatorcontrib><creatorcontrib>Wheatley, P J</creatorcontrib><creatorcontrib>Wilson, Richard W</creatorcontrib><creatorcontrib>Winter, Othon C</creatorcontrib><creatorcontrib>Zhou, George</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central 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Mooij</au><au>Kennedy, Grant M</au><au>Relles, Howard</au><au>Gomez, Edward</au><au>Hippke, Michael</au><au>Banfi, Massimo</au><au>Barbieri, Lorenzo</au><au>Becker, Igor</au><au>Benni, Paul</au><au>Berlind, Perry</au><au>Bieryla, Allyson</au><au>Bonnoli, Giacomo</au><au>Boussier, Hubert</au><au>Brincat, Stephen</au><au>Briol, John</au><au>Burleigh, Matthew</au><au>Butterley, Tim</au><au>Calkins, Michael L</au><au>Chote, Paul</au><au>Ciceri, Simona</au><au>Deldem, Marc</au><au>Dhillon, Vik S</au><au>Dose, Eric</au><au>Dubois, Frank</au><au>Dvorak, Shawn</au><au>Esquerdo, Gilbert A</au><au>Evans, Daniel</au><au>Stephane Ferratfiat Dagot Berangez</au><au>Fossey, Stephen</au><au>Güenther, Maximilian N</au><au>Hall, John</au><au>Hambsch, Josch</au><au>Enrique Herrero Casas</au><au>Hills, Kevin</au><au>James, Robert</au><au>Kafka, Stella</au><au>Killestein, Thomas L</au><au>Kotnik, Clifford</au><au>Latham, David W</au><au>Lemay, Damien</au><au>Lewin, Pablo</au><au>Littlefair, Stuart</au><au>Lopresti, Claudio</au><au>Mallonn, Matthias</au><au>Mancini, Luigi</au><au>Marchini, Alessandro</au><au>McCormac, James J</au><au>Murawski, Gabriel</au><au>Myers, Gordon</au><au>Papini, Ricardo</au><au>Popov, Velimir</au><au>Quadri, Ulisse</au><au>Quinn, Samuel N</au><au>Raynard, Liam</au><au>Rizzuti, Luca</au><au>Roa, James</au><au>Robertson, Jeff</au><au>Salvaggio, Fabio</au><au>Scholz, Alexander</au><au>Sfair, Rafael</au><au>Smith, Alexis M S</au><au>Southworth, John</au><au>Tan, T G</au><au>Vanaverbeke, Sigfried</au><au>Waagen, Elizabeth O</au><au>Watson, Christopher</au><au>West, Richard</au><au>Wheatley, P J</au><au>Wilson, Richard W</au><au>Winter, Othon C</au><au>Zhou, George</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The PDS 110 observing campaign - photometric and spectroscopic observations reveal eclipses are aperiodic</atitle><jtitle>arXiv.org</jtitle><date>2019-01-23</date><risdate>2019</risdate><eissn>2331-8422</eissn><abstract>PDS 110 is a young disk-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 September 2017. 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 RV oscillations caused by any hypothetical companion and can rule out close binaries to 0.1 \(M_\odot\). A search of Sonneberg plate archive data also enabled us to extend the photometric baseline of this star back more than 50 years, 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 shorter-duration than those of UX Ori variables, but may have a similar mechanism.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1901.07981</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 2331-8422 |
| ispartof | arXiv.org, 2019-01 |
| issn | 2331-8422 |
| language | eng |
| recordid | cdi_arxiv_primary_1901_07981 |
| source | arXiv.org; Free E- Journals |
| subjects | Binary stars Companion stars Dimming Eclipses Ground-based observation Photometry Physics - Earth and Planetary Astrophysics Physics - Solar and Stellar Astrophysics Plates (structural members) |
| title | The PDS 110 observing campaign - photometric and spectroscopic observations reveal eclipses are aperiodic |
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