Hom, Justin and Patience, Jennifer and Esposito, Thomas M. and Duchêne, Gaspard and Worthen, Kadin and Kalas, Paul and Jang-Condell, Hannah and Saboi, Kezman and Arriaga, Pauline and Mazoyer, Johan and Wolff, Schuyler and Millar-Blanchaer, Maxwell A. and Fitzgerald, Michael P. and Perrin, Marshall D. and Chen, Christine H. and Macintosh, Bruce and Matthews, Brenda C. and Wang, Jason J. and Graham, James R. and Marchis, Franck and Ammons, S. Mark and Bailey, Vanessa P. and Barman, Travis and Bulger, Joanna and Chilcote, Jeffrey K. and Cotten, Tara and De Rosa, Robert J. and Doyon, René and Follette, Katherine B. and Goodsell, Steven and Greenbaum, Alexandra Z. and Hibon, Pascale and Ingraham, Patrick and Konopacky, Quinn and Larkin, James E. and Maire, Jerome and Marley, Mark S. and Marois, Christian and Matthews, Elisabeth and Metchev, Stanimir and Nielsen, Eric L. and Oppenheimer, Rebecca and Palmer, David and Poyneer, Lisa A. and Pueyo, Laurent and Rajan, Abhijith and Rameau, Julien and Rantakyrö, Fredrik T. and Ren, Bin and Savransky, Dmitry and Schneider, Adam and Sivaramakrishnan, Anand and Song, Inseok and Soummer, Rémi and Tallis, Melisa and Thomas, Sandrine and Wallace, J. Kent and Ward-Duong, Kimberly and Wiktorowicz, Sloane J. and Zuckerman, Ben (2020) First Resolved Scattered-light Images of Four Debris Disks in Scorpius-Centaurus with the Gemini Planet Imager. Astronomical Journal, 159 (1). Art. No. 31. ISSN 1538-3881. doi:10.3847/1538-3881/ab5af2. https://resolver.caltech.edu/CaltechAUTHORS:20200504-093654799
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Abstract
We present the first spatially resolved scattered-light images of four debris disks around members of the Scorpius-Centaurus (Sco-Cen) OB association with high-contrast imaging and polarimetry using the Gemini Planet Imager (GPI). All four disks are resolved for the first time in polarized light, and one disk is also detected in total intensity. The three disks imaged around HD 111161, HD 143675, and HD 145560 are symmetric in both morphology and brightness distribution. The three systems span a range of inclinations and radial extents. The disk imaged around HD 98363 shows indications of asymmetries in morphology and brightness distribution, with some structural similarities to the HD 106906 planet–disk system. Uniquely, HD 98363 has a wide comoving stellar companion, Wray 15-788, with a recently resolved disk with very different morphological properties. HD 98363 A/B is the first binary debris disk system with two spatially resolved disks. All four targets have been observed with ALMA, and their continuum fluxes range from one nondetection to one of the brightest disks in the region. With the new results, a total of 15 A/F stars in Sco-Cen have resolved scattered-light debris disks, and approximately half of these systems exhibit some form of asymmetry. Combining the GPI disk structure results with information from the literature on millimeter fluxes and imaged planets reveals a diversity of disk properties in this young population. Overall, the four newly resolved disks contribute to the census of disk structures measured around A/F stars at this important stage in the development of planetary systems.
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| Additional Information: | © 2020 The American Astronomical Society. Received 2019 September 30; revised 2019 November 21; accepted 2019 November 21; published 2020 January 2. This work is based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the National Research Council (Canada), CONICYT (Chile), Ministerio de Ciencia, Tecnología e Innovación Productiva (Argentina), and Ministério da Ciência, Tecnologia e Inovação (Brazil). This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC; https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. This research has made use of the SIMBAD and VizieR databases, operated at CDS, Strasbourg, France. Supported by NSF grants AST-1411868 (E.L.N., K.B.F., B.M., and J.P.), AST-141378 (G.D.), and AST-1518332 (R.D.R., J.J.W., T.M.E., J.R.G., P.K., G.D.). Supported by NASA grants NNX14AJ80G (E.L.N., S.C.B., B.M., F.M., and M.P.), NNX15AC89G and NNX15AD95G/NExSS (B.M., J.E.W., T.M.E., R.J.D.R., G.D., J.R.G., P.K.), NN15AB52l (D.S.), and NNX16AD44G (K.M.M.). J.R., R.D., and D.L. acknowledge support from the Fonds de Recherche du Quèbec. J.R.M.'s work was performed in part under contract with the California Institute of Technology (Caltech)/Jet Propulsion Laboratory (JPL) funded by NASA through the Sagan Fellowship Program executed by the NASA Exoplanet Science Institute. M.M.B. and J.M. were supported by NASA through Hubble Fellowship grant No. 51378.01-A and HST-HF2-51414.001, respectively, and I.C. through Hubble Fellowship grant HST-HF2-51405.001-A, awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555. K.W.D. is supported by NRAO Student Observing Support Award SOSPA3-007. J.J.W. is supported by the Heising-Simons Foundation 51 Pegasi b postdoctoral fellowship. This work benefited from NASA's Nexus for Exoplanet System Science (NExSS) research coordination network, sponsored by NASA's Science Mission Directorate. Portions of this work were also performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. Facility: Gemini:South - Gemini South Telescope. Software: Gemini Planet Imager Data Pipeline (Perrin et al. 2014, 2016; http://ascl.net/1411.018), pyKLIP (Wang et al. 2015; http://ascl.net/1506.001), numpy, scipy, Astropy (Astropy Collaboration et al. 2018), matplotlib (Hunter 2007; Droettboom et al. 2017), iPython (Perez & Granger 2007), emcee (Foreman-Mackey et al. 2013; http://ascl.net/1303.002), corner (Foreman-Mackey 2017; http://ascl.net/1702.002). | ||||||||||||||||||||||||||||||||||||||||
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| Subject Keywords: | Circumstellar disks ; Debris disks ; Direct imaging ; Planetary system formation ; Near infrared astronomy ; Circumstellar dust ; Circumstellar matter | ||||||||||||||||||||||||||||||||||||||||
| Issue or Number: | 1 | ||||||||||||||||||||||||||||||||||||||||
| Classification Code: | Unified Astronomy Thesaurus concepts: Circumstellar disks (235); Debris disks (363); Direct imaging (387); Planetary system formation (1257); Near infrared astronomy (1093); Circumstellar dust (236); Circumstellar matter (241) | ||||||||||||||||||||||||||||||||||||||||
| DOI: | 10.3847/1538-3881/ab5af2 | ||||||||||||||||||||||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20200504-093654799 | ||||||||||||||||||||||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20200504-093654799 | ||||||||||||||||||||||||||||||||||||||||
| Official Citation: | Justin Hom et al 2020 AJ 159 31 | ||||||||||||||||||||||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||||||||||||||||||
| ID Code: | 102973 | ||||||||||||||||||||||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||||||||||||||||||||||
| Deposited By: | Tony Diaz | ||||||||||||||||||||||||||||||||||||||||
| Deposited On: | 04 May 2020 16:52 | ||||||||||||||||||||||||||||||||||||||||
| Last Modified: | 16 Nov 2021 18:17 |
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