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101. A Study of Millimeter Variability in FUor Objects

Author

Wendeborn, John, primary, Espaillat, Catherine C., additional, Macías, Enrique, additional, Fehér, Orsolya, additional, Kóspál, Á., additional, Hartmann, Lee, additional, Zhu, Zhaohuan, additional, Dunham, Michael M., additional, and Kounkel, Marina, additional

Published
2020
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102. Irregular Dust Features around Intermediate-mass Young Stars with GPI: Signs of Youth or Misaligned Disks?

Author

Laws, Anna S. E., primary, Harries, Tim J., additional, Setterholm, Benjamin R., additional, Monnier, John D., additional, Rich, Evan A., additional, Aarnio, Alicia N., additional, Adams, Fred C., additional, Andrews, Sean, additional, Bae, Jaehan, additional, Calvet, Nuria, additional, Espaillat, Catherine, additional, Hartmann, Lee, additional, Hinkley, Sasha, additional, Isella, Andrea, additional, Kraus, Stefan, additional, Wilner, David, additional, and Zhu, Zhaohuan, additional

Published
2019
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103. dispersal of protoplanetary discs – III. Influence of stellar mass on disc photoevaporation.

Author

Picogna, Giovanni, Ercolano, Barbara, and Espaillat, Catherine C

Subjects
STELLAR mass, PROTOPLANETARY disks, X-ray spectra, HABITABLE planets, PLANETARY atmospheres, STELLAR winds, CIRCUMSTELLAR matter
Abstract

The strong X-ray irradiation from young solar-type stars may play a crucial role in the thermodynamics and chemistry of circumstellar discs, driving their evolution in the last stages of disc dispersal as well as shaping the atmospheres of newborn planets. In this paper, we study the influence of stellar mass on circumstellar disc mass-loss rates due to X-ray irradiation, extending our previous study of the mass-loss rate's dependence on the X-ray luminosity and spectrum hardness. We focus on stars with masses between 0.1 and 1 M⊙, which are the main target of current and future missions to find potentially habitable planets. We find a linear relationship between the mass-loss rates and the stellar masses when changing the X-ray luminosity accordingly with the stellar mass. This linear increase is observed also when the X-ray luminosity is kept fixed because of the lower disc aspect ratio which allows the X-ray irradiation to reach larger radii. We provide new analytical relations for the mass-loss rates and profiles of photoevaporative winds as a function of the stellar mass that can be used in disc and planet population synthesis models. Our photoevaporative models correctly predict the observed trend of inner-disc lifetime as a function of stellar mass with an increased steepness for stars smaller than 0.3 M⊙, indicating that X-ray photoevaporation is a good candidate to explain the observed disc dispersal process. [ABSTRACT FROM AUTHOR]

Published
2021
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104. Characterization of Ring Substructures in the Protoplanetary Disk of HD 169142 from Multiwavelength Atacama Large Millimeter/submillimeter Array Observations

Author

European Commission, European Research Council, National Science Foundation (US), Alfred P. Sloan Foundation, Ministerio de Ciencia, Innovación y Universidades (España), Macías, E., Espaillat, Catherine C., Osorio, Mayra, Anglada-Escudé, Guillem, Torrelles, José M., Carrasco-González, Carlos, Flock, M., Linz, Hendrik, Bertrang, G.H.M., Henning, Thomas, Gómez Rivero, José Francisco, Calvet, Nuria, Dent, W.R.F., European Commission, European Research Council, National Science Foundation (US), Alfred P. Sloan Foundation, Ministerio de Ciencia, Innovación y Universidades (España), Macías, E., Espaillat, Catherine C., Osorio, Mayra, Anglada-Escudé, Guillem, Torrelles, José M., Carrasco-González, Carlos, Flock, M., Linz, Hendrik, Bertrang, G.H.M., Henning, Thomas, Gómez Rivero, José Francisco, Calvet, Nuria, and Dent, W.R.F.

Abstract

We present a detailed multiwavelength characterization of the multi-ring disk of HD 169142. We report new Atacama Large Millimeter/submillimeter Array (ALMA) observations at 3 mm and analyze them together with archival 0.89 and 1.3 mm data. Our observations resolve three out of the four rings in the disk previously seen in high-resolution ALMA data. A simple parametric model is used to estimate the radial profile of the dust optical depth, temperature, density, and particle size distribution. We find that the multiple ring features of the disk are produced by annular accumulations of large particles, probably associated with gas pressure bumps. Our model indicates that the maximum dust grain size in the rings is ∼1 cm, with slightly flatter power-law size distributions than the interstellar medium-like size distribution (p ∼ 3.5) found in the gaps. In particular, the inner ring (∼26 au) is associated with a strong and narrow buildup of dust particles that could harbor the necessary conditions to trigger the streaming instability. According to our analysis, the snowlines of the most important volatiles do not coincide with the observed substructures. We explore different ring formation mechanisms and find that planet-disk interactions are the most likely scenario to explain the main features of HD 169142. Overall, our multiwavelength analysis provides some of the first unambiguous evidence of the presence of radial dust traps in the rings of HD 169142. A similar analysis in a larger sample of disks could provide key insights on the impact that disk substructures have on the dust evolution and planet formation processes.© 2019. The American Astronomical Society. All rights reserved..

Published
2019

107. Characterization of Ring Substructures in the Protoplanetary Disk of HD 169142 from Multiwavelength Atacama Large Millimeter/submillimeter Array Observations

Author

Macías, Enrique, primary, Espaillat, Catherine C., additional, Osorio, Mayra, additional, Anglada, Guillem, additional, Torrelles, José M., additional, Carrasco-González, Carlos, additional, Flock, Mario, additional, Linz, Hendrik, additional, Bertrang, Gesa H.-M., additional, Henning, Thomas, additional, Gómez, José F., additional, Calvet, Nuria, additional, and Dent, William R. F., additional

Published
2019
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110. Multiple Spiral Arms in the Disk around Intermediate-mass Binary HD 34700A

Author

Monnier, John D., primary, Harries, Tim J., additional, Bae, Jaehan, additional, Setterholm, Benjamin R., additional, Laws, Anna, additional, Aarnio, Alicia, additional, Adams, Fred C., additional, Andrews, Sean, additional, Calvet, Nuria, additional, Espaillat, Catherine, additional, Hartmann, Lee, additional, Kraus, Stefan, additional, McClure, Melissa, additional, Miller, Chris, additional, Oppenheimer, Rebecca, additional, Wilner, David, additional, and Zhu, Zhaohuan, additional

Published
2019
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111. The CIDA Variability Survey of Orion OB1. II. Demographics of the Young, Low-mass Stellar Populations

Author

Briceño, César, primary, Calvet, Nuria, additional, Hernández, Jesús, additional, Vivas, A. Katherina, additional, Mateu, Cecilia, additional, Downes, Juan José, additional, Loerincs, Jaqueline, additional, Pérez-Blanco, Alice, additional, Berlind, Perry, additional, Espaillat, Catherine, additional, Allen, Lori, additional, Hartmann, Lee, additional, Mateo, Mario, additional, and Bailey III, John I., additional

Published
2019
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112. Imaging the disc rim and a moving close-in companion candidate in the pre-transitional disc of V1247 Orionis

Author

Willson, Matthew, primary, Kraus, Stefan, additional, Kluska, Jacques, additional, Monnier, John D., additional, Cure, Michel, additional, Sitko, Mike, additional, Aarnio, Alicia, additional, Ireland, Michael J., additional, Rizzuto, Aaron, additional, Hone, Edward, additional, Kreplin, Alexander, additional, Andrews, Sean, additional, Calvet, Nuria, additional, Espaillat, Catherine, additional, Fukagawa, Misato, additional, Harries, Tim J., additional, Hinkley, Sasha, additional, Kanaan, Samer, additional, Muto, Takayuki, additional, and Wilner, David J., additional

Published
2018
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113. Multiple Rings in the Transitional Disk of GM Aurigae Revealed by VLA and ALMA

Author

National Science Foundation (US), Ministerio de Economía y Competitividad (España), European Commission, Alfred P. Sloan Foundation, Macías, Enrique, Espaillat, Catherine C., Ribas, Álvaro, Schwarz, Kamber R., Anglada-Escudé, Guillem, Osorio, Mayra, Carrasco-González, Carlos, Gómez Rivero, José Francisco, Robinson, Connor, National Science Foundation (US), Ministerio de Economía y Competitividad (España), European Commission, Alfred P. Sloan Foundation, Macías, Enrique, Espaillat, Catherine C., Ribas, Álvaro, Schwarz, Kamber R., Anglada-Escudé, Guillem, Osorio, Mayra, Carrasco-González, Carlos, Gómez Rivero, José Francisco, and Robinson, Connor

Abstract

Our understanding of protoplanetary disks is rapidly departing from the classical view of a smooth, axisymmetric disk. This is in part thanks to the high angular resolution that (sub)millimeter observations can provide. Here, we present the combined results of Atacama Large Millimeter/submillimeter Array (ALMA) (0.9 mm) and Very Large Array (VLA) (7 mm) dust continuum observations toward the protoplanetary disk around the solar analog GM Aur. Both images clearly resolve the ∼35 au inner cavity. The ALMA observations also reveal a fainter disk that extends up to ∼250 au. We model our observations using two approaches: an analytical fit to the observed deprojected visibilities, and a physical disk model that fits the spectral energy distribution as well as the VLA and ALMA observations. Despite not being evident in the deconvolved images, the VLA and ALMA visibilities can only be fitted with two bright rings of radii ∼40 and ∼80 au. Our physical model indicates that this morphology is the result of an accumulation or trapping of large dust grains, probably due to the presence of two pressure bumps in the disk. Even though alternative mechanisms cannot be discarded, the multiple rings suggest that forming planets may have cleared at least two gaps in the disk. Finally, our analysis suggests that the inner cavity might display different sizes at 0.9 and 7 mm. This discrepancy could be caused by the presence of free-free emission close to the star at 7 mm, or by a more compact accumulation of the large dust grains at the edge of the cavity.© 2018. The American Astronomical Society. All rights reserved.

Published
2018

114. The planet formation imager

Author

Monnier, John J.D., Kraus, Stefan, Ireland, Michael M.J., Baron, Fabien, Bayo, Amelia, Berger, Jean-Philippe, Creech-Eakman, Michelle, Dong, Ruobing, Duchêne, Gaspard, Espaillat, Catherine, Haniff, Chris, Hönig, Sebastian S.F., Isella, Andrea, Juhasz, Attila, Labadie, Lucas, Lacour, Sylvestre, Leifer, Stephanie, Mérand, Antoine, Michael, Ernest, Minardi, Stefano, Mordasini, Christoph, Mozurkewich, David, Olofsson, Johan, Paladini, Claudia, Petrov, Romain, Pott, Jörg Uwe, Ridgway, Stephen, Rinehart, Stephen, Stassun, Keivan, Surdej, Jean, Brummelaar, Theo A Ten, Turner, Neal, Tuthill, Peter P.G., Vahala, Kerry, Van Belle, Gerard G.T., Vasisht, Gautam, Wishnow, Ed, Young, John, Zhu, Zhaohuan, Monnier, John J.D., Kraus, Stefan, Ireland, Michael M.J., Baron, Fabien, Bayo, Amelia, Berger, Jean-Philippe, Creech-Eakman, Michelle, Dong, Ruobing, Duchêne, Gaspard, Espaillat, Catherine, Haniff, Chris, Hönig, Sebastian S.F., Isella, Andrea, Juhasz, Attila, Labadie, Lucas, Lacour, Sylvestre, Leifer, Stephanie, Mérand, Antoine, Michael, Ernest, Minardi, Stefano, Mordasini, Christoph, Mozurkewich, David, Olofsson, Johan, Paladini, Claudia, Petrov, Romain, Pott, Jörg Uwe, Ridgway, Stephen, Rinehart, Stephen, Stassun, Keivan, Surdej, Jean, Brummelaar, Theo A Ten, Turner, Neal, Tuthill, Peter P.G., Vahala, Kerry, Van Belle, Gerard G.T., Vasisht, Gautam, Wishnow, Ed, Young, John, and Zhu, Zhaohuan

Abstract

The Planet Formation Imager (PFI, www.planetformationimager.org) is a next-generation infrared interferometer array with the primary goal of imaging the active phases of planet formation in nearby star forming regions. PFI will be sensitive to warm dust emission using mid-infrared capabilities made possible by precise fringe tracking in the near-infrared. An L/M band combiner will be especially sensitive to thermal emission from young exoplanets (and their disks) with a high spectral resolution mode to probe the kinematics of CO and H2O gas. In this paper, we give an overview of the main science goals of PFI, define a baseline PFI architecture that can achieve those goals, point at remaining technical challenges, and suggest activities today that will help make the Planet Formation Imager facility a reality., SCOPUS: ar.j, DecretOANoAutActif, info:eu-repo/semantics/published

Published
2018

118. Herschel Observations of Protoplanetary Disks in Lynds 1641

Author

Grant, Sierra L., primary, Espaillat, Catherine C., additional, Megeath, S. Thomas, additional, Calvet, Nuria, additional, Fischer, William J., additional, Miller, Christopher J., additional, Kim, Kyoung Hee, additional, Stutz, Amelia M., additional, Ribas, Álvaro, additional, and Robinson, Connor E., additional

Published
2018
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119. Planet formation imager: project update

Author

Monnier, John D., primary, Ireland, Michael, primary, Kraus, Stefan, primary, Bonsor, Amy, primary, Baron, Fabien, primary, Berger, Jean-Philippe, primary, Boyajian, Tabetha, primary, Chiavassa, Andrea, primary, Ciardi, David, primary, Creech-Eakman, Michelle, primary, de Wit, Willem-Jan, primary, Dong, Ruobing, primary, Espaillat, Catherine, primary, Gallenne, Alexandre, primary, Gandhi, Poshak, primary, Gonzalez, Jean-Francois, primary, Haniff, Chris, primary, Hoenig, Sebastian, primary, Ilee, John, primary, Isella, Andrea, primary, Jensen, Eric, primary, Juhasz, Attila, primary, Kane, Stephen, primary, Kishimoto, Makoto, primary, Kley, Wilhelm, primary, Kral, Quentin, primary, Kratter, Kaitlin, primary, Labadie, Lucas, primary, Lacour, Sylvestre, primary, Laughlin, Greg, primary, Le Bouquin, Jean-Baptiste, primary, Michael, Ernest, primary, Meru, Farzana, primary, Millan-Gabet, Rafael, primary, Millour, Florentin, primary, Minardi, Stefano, primary, Morbidelli, Alessandro, primary, Mordasini, Chris, primary, Morlok, Andreas, primary, Mozurkewich, Dave, primary, Nelson, Richard, primary, Oudmaijer, Rene, primary, Packham, Chris, primary, Paladini, Claudia, primary, Panic, Olja, primary, Petrov, Romain, primary, Pope, Benjamin, primary, Pott, Joerg-Uwe, primary, Quiroga-Nuñez, Luis Henry, primary, Ramos Almeida, Cristina, primary, Raymond, Sean, primary, Regaly, Zsolt, primary, Reynolds, Mark, primary, Ridgway, Stephen, primary, Rinehart, Stephen, primary, Smith, Michael, primary, Stassun, Keivan, primary, Surdej, Jean, primary, Turner, Neal, primary, Tuthill, Peter, primary, van Belle, Gerard T., primary, Vasisht, Gautum, primary, Weigelt, Gerd, primary, Wishnow, Edward, primary, Wolf, Sebastian, primary, Zhao, Ming, primary, Zhu, Zhaohuan, primary, Schreiber, Matthias, primary, Duchêne, Gaspard, primary, Bayo, Amelia, primary, Olofsson, Johan, primary, ten Brummelaar, Theo, primary, Tristram, Konrad, primary, Wittkowski, Markus, primary, Young, John, primary, Wallace, Alexander, primary, Defrere, Denis, primary, Alonso-Herrero, Almudena, primary, and Z\'u\~niga-Fern\'andez, Sebasti\'an, primary

Published
2018
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120. The planet formation imager

Author

Monnier, John D., primary, Kraus, Stefan, additional, Ireland, Michael J., additional, Baron, Fabien, additional, Bayo, Amelia, additional, Berger, Jean-Philippe, additional, Creech-Eakman, Michelle, additional, Dong, Ruobing, additional, Duchêne, Gaspard, additional, Espaillat, Catherine, additional, Haniff, Chris, additional, Hönig, Sebastian, additional, Isella, Andrea, additional, Juhasz, Attila, additional, Labadie, Lucas, additional, Lacour, Sylvestre, additional, Leifer, Stephanie, additional, Merand, Antoine, additional, Michael, Ernest, additional, Minardi, Stefano, additional, Mordasini, Christoph, additional, Mozurkewich, David, additional, Olofsson, Johan, additional, Paladini, Claudia, additional, Petrov, Romain, additional, Pott, Jörg-Uwe, additional, Ridgway, Stephen, additional, Rinehart, Stephen, additional, Stassun, Keivan, additional, Surdej, Jean, additional, Brummelaar, Theo ten, additional, Turner, Neal, additional, Tuthill, Peter, additional, Vahala, Kerry, additional, van Belle, Gerard, additional, Vasisht, Gautam, additional, Wishnow, Ed, additional, Young, John, additional, and Zhu, Zhaohuan, additional

Published
2018
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121. Herschel PACS Observations of 4–10 Myr Old Classical T Tauri Stars in Orion OB1

Author

Maucó, Karina, primary, Briceño, César, additional, Calvet, Nuria, additional, Hernández, Jesús, additional, Ballesteros-Paredes, Javier, additional, González, Omaira, additional, C. Espaillat, Catherine, additional, Li, Dan, additional, Telesco, Charles M., additional, Downes, Juan José, additional, Macías, Enrique, additional, Qi, Chunhua, additional, Michel, Raúl, additional, D’Alessio, Paola, additional, and Ali, Babar, additional

Published
2018
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122. Planet Formation Imager (PFI): science vision and key requirements

Author

Ridgway Steve, Regaly Zsolt, Kral Quentin, Gandhi Poshak, Packham Chris, Tristram Konrad R. W., Baruteau Clement, Tuthill Peter, Mordasini Chris, Matter Alexis, A. Pierens, Duchene Gaspard, Olofsson Johan, Ilee John, Bitsch Bertram, Wittkowski Markus, Pinte Christophe, Meru Farzana, Armitage Phil, Chiavassa Andrea, Berger Jean-Philippe, Millour Florentin, Buscher David, Rosotti Giovanni P., Zhao Ming, Pott Joerg-Uwe, Wolf Sebastian, ten Brummelaar Theo, Bayo Amelia, Labadie Lucas, Morlok Andreas, Millan-Gabet Rafael, Kishimoto Makoto, Gallenne Alexandre, Ciardi David, Turner Neal, Gonzalez Jean-Francois, Vasisht Gautam, Monnier John D., Zhu Zhaohuan, Weigelt Gerd, Quiroga-Nunez Luis Henry, Kratter Kaitlin, Ramos Almeida Cristina, Juhasz Attila, Kley Wilhelm, Smith Michael, Espaillat Catherine, Alonso Herrero Almudena, Paladini Claudia, Pope Benjamin, Bate Matthew R., de Wit Willem-Jan, Harries Tim J., Lacour Sylvestre, Boyajian Tabetha, Petrov Romain, Paardekooper Sijme-Jan, Laughlin Greg, Nelson Richard P., Hoenig Sebastian, Pepper Joshua, Stassun Keivan, Jensen Eric L. N., Bonsor Amy, Kraus Stefan, Haniff Chris, Reynold Mark, Panic Olja, Sean N. Raymond, Masset Frederic, van Belle Gerard, Morbidelli Alessandro, Kane Stephen R., Ireland Michael J., Surdej Jean, Oudmaijer Rene, Benisty Myriam, Micromotive GmbH, Mainz, Germany, Université Paris Diderot - Paris 7 (UPD7), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université libre de Bruxelles (ULB), The Breakthrough Breast Cancer Research Centre, Institute of cancer research, Institut de Biologie du Développement de Marseille (IBDM), Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Centre National de la Recherche Scientifique (CNRS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA), foreign laboratories (FL), CERN [Genève], Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides (CASSIOPEE), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Department of Materials Science and Engineering, Institute of Ceramics and Glass-Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Pontifical Catholic University of Paraná (PUCPR), Pontifical Catholic University of Paraná, UNESCO Chinese Center of Marine Biotechnology, Ocean University of China, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), École Supérieure Polytechnique de Dakar (ESP), Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD), ECLIPSE 2016, Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), The Samuel Roberts Noble Foundation, Max-Planck-Institut für Radioastronomie (MPIFR), LT2C, Laboratoire Telecom Claude Chappe (LT2C), Université Jean Monnet [Saint-Étienne] (UJM)-Ecole d'ingenieurs Telecom Saint Etienne-Université Jean Monnet [Saint-Étienne] (UJM)-Ecole d'ingenieurs Telecom Saint Etienne, NASA ExoPlanet Science Institute (NExScI), California Institute of Technology (CALTECH), Universidad de Concepción [Chile], European Southern Observatory (ESO), Department of Physics, Durham University, Durham University, GRI-CEL, National Optical Astronomy Observatory (NOAO), Sydney Institute for Astronomy (SIfA), The University of Sydney, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Lund Observatory, Lund University [Lund], Malbet, Fabien, Creech-Eakman, Michelle J., Tuthill, Peter G., University of Exeter, Department of Astronomy, University of Michigan, Australian National University (ANU), University of California [Berkeley] (UC Berkeley), University of California (UC), Boston University [Boston] (BU), University of Southampton, Institute of Astronomy [Cambridge], University of Cambridge [UK] (CAM), University of Bern, Instituto de Fisica y Astronomia [Valparaiso], Universidad de Valparaiso [Chile], Vanderbilt University [Nashville], Jet Propulsion Laboratory, California Institute of Technology (JPL), Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire de la Côte d'Azur (OCA), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Department of Astrophysical Sciences, Princeton University, Konkoly Observatory, Research Center for Astronomy and Earth Sciences, University of Kiel, Pennsylvania State University, Department of Astronomy & Astrophysics, Institut für Planetologie [Münster], Westfälische Wilhelms-Universität Münster = University of Münster (WWU), San Francisco State University (SFSU), University of Arizona, Yale University [New Haven], Lehigh University [Bethlehem], Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Universität zu Köln = University of Cologne, Queen Mary University of London (QMUL), Georgia State University, Atlanta, Georgia State University, University System of Georgia (USG)-University System of Georgia (USG), University of Leeds, University of Tübingen, University of Oxford, Swarthmore College, University of Kent, Sterrewacht Leiden, Universiteit Leiden, Joint Institute for VLBI ERIC, Dwingeloo (JIVE), European Southern Observatory [Santiago] (ESO), Instituto de Astrofisica de Canarias (IAC), University of Cantabria, Santander, University of Madrid, The University of Texas at San Antonio (UTSA), Kyoto Sangyo University, Max Planck Institute for Astronomy (MPIA), University of Liege, Liege, Belgium, Observatoire de Paris, Université Paris sciences et lettres (PSL), Lowell Observatory [Flagstaff], JILA, NIST, and Department of Physics, University of Colorado, Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut de Planétologie et d'Astrophysique de Grenoble (IPAG ), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM), Institut de Mathématiques de Toulouse UMR5219 (IMT), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Institut National des Sciences Appliquées (INSA), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Université Libre de Bruxelles [Bruxelles] (ULB), Aix Marseille Université (AMU)-Collège de France (CdF)-Centre National de la Recherche Scientifique (CNRS), Université Côte d'Azur (UCA), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Institute of Ceramics and Glass-Friedrich Alexander University [Erlangen-Nürnberg], Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National d'Études Spatiales [Toulouse] (CNES)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), École Supérieure Polytechnique - Université Cheikh Anta DIOP de Dakar (ESP - UCAD), Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Samuel Roberts Noble Foundation, Inc., National Optical Astronomical Observatory (NOAO), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Université Nice Sophia Antipolis (1965 - 2019) (UNS), Friedrich-Alexander Universität Erlangen-Nürnberg (FAU)-Institute of Ceramics and Glass, Pontifícia Universidade Católica do Paraná (PUCPR), Université Jean Monnet - Saint-Étienne (UJM)-Ecole d'ingenieurs Telecom Saint Etienne-Université Jean Monnet - Saint-Étienne (UJM)-Ecole d'ingenieurs Telecom Saint Etienne, Universidad de Concepción - University of Concepcion [Chile], Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA), COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Université Fédérale Toulouse Midi-Pyrénées-Centre National d'Études Spatiales [Toulouse] (CNES)-Météo France-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Université Fédérale Toulouse Midi-Pyrénées-Centre National d'Études Spatiales [Toulouse] (CNES)-Météo France-Université Toulouse III - Paul Sabatier (UT3), and Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)

Subjects
Computer science, [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP], FOS: Physical sciences, 01 natural sciences, Astrobiology, 010309 optics, Planet, extrasolar planets, 0103 physical sciences, planet formation, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, high angular resolution imaging, Earth and Planetary Astrophysics (astro-ph.EP), protoplanetary disks, Planetary system, interferometry, Exoplanet, 13. Climate action, Hill sphere, Systems architecture, Key (cryptography), Astrophysics::Earth and Planetary Astrophysics, Protoplanet, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Earth and Planetary Astrophysics
Abstract

The Planet Formation Imager (PFI) project aims to provide a strong scientific vision for ground-based optical astronomy beyond the upcoming generation of Extremely Large Telescopes. We make the case that a breakthrough in angular resolution imaging capabilities is required in order to unravel the processes involved in planet formation. PFI will be optimised to provide a complete census of the protoplanet population at all stellocentric radii and over the age range from 0.1 to about 100 Myr. Within this age period, planetary systems undergo dramatic changes and the final architecture of planetary systems is determined. Our goal is to study the planetary birth on the natural spatial scale where the material is assembled, which is the "Hill Sphere" of the forming planet, and to characterise the protoplanetary cores by measuring their masses and physical properties. Our science working group has investigated the observational characteristics of these young protoplanets as well as the migration mechanisms that might alter the system architecture. We simulated the imprints that the planets leave in the disk and study how PFI could revolutionise areas ranging from exoplanet to extragalactic science. In this contribution we outline the key science drivers of PFI and discuss the requirements that will guide the technology choices, the site selection, and potential science/technology tradeoffs., Comment: 13 pages, 5 figures, Proceedings of SPIE 2016

Published
2016

123. Far-infrared to Millimeter Data of Protoplanetary Disks: Dust Growth in the Taurus, Ophiuchus, and Chamaeleon I Star-forming Regions

Author

Ribas, Álvaro, primary, Espaillat, Catherine C., additional, Macías, Enrique, additional, Bouy, Hervé, additional, Andrews, Sean, additional, Calvet, Nuria, additional, Naylor, David A., additional, Riviere-Marichalar, Pablo, additional, van der Wiel, Matthijs H. D., additional, and Wilner, David, additional

Published
2017
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124. Polarized Disk Emission from Herbig Ae/Be Stars Observed Using Gemini Planet Imager: HD 144432, HD 150193, HD 163296, and HD 169142

Author

Monnier, John D., primary, Harries, Tim J., additional, Aarnio, Alicia, additional, Adams, Fred C., additional, Andrews, Sean, additional, Calvet, Nuria, additional, Espaillat, Catherine, additional, Hartmann, Lee, additional, Hinkley, Sasha, additional, Kraus, Stefan, additional, McClure, Melissa, additional, Oppenheimer, Rebecca, additional, Perrin, Marshall, additional, and Wilner, David, additional

Published
2017
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125. Imaging the disc rim and a moving close-in companion candidate in the pre-transitional disc of V1247 Orionis.

Author

Willson, Matthew, Kraus, Stefan, Kluska, Jacques, Monnier, John D., Cure, Michel, Sitko, Mike, Aarnio, Alicia, Ireland, Michael J., Rizzuto, Aaron, Hone, Edward, Kreplin, Alexander, Andrews, Sean, Calvet, Nuria, Espaillat, Catherine, Fukagawa, Misato, Harries, Tim J., Hinkley, Sasha, Kanaan, Samer, Muto, Takayuki, and Wilner, David J.

Subjects
INTERFEROMETRY, ACCRETION (Astrophysics), INFORMATION asymmetry, ABLATION (Aerothermodynamics), SPRAYING
Abstract

Context. V1247 Orionis harbours a pre-transitional disc with a partially cleared gap. Earlier interferometric and polarimetric observations revealed strong asymmetries both in the gap region and in the outer disc. The presence of a companion was inferred to explain these asymmetric structures and the ongoing disc clearing. Aims. Using an extensive set of multi-wavelength and multi-epoch observations we aimed to identify the origin of the previously detected asymmetries. Methods. We have observed V1247 Ori at three epochs spanning ~678 days using sparse aperture masking interferometry with Keck/NIRC2 and VLT/NACO. In addition, we search for signs of accretion through VLT/SPHERE-ZIMPOL spectral differential imaging in Hα and R-band continuum. Our SMA sub-millimetre interferometry in 880 μm continuum and in the CO(3-2) line allows us to constrain the orientation and direction of rotation of the outer disc. Results. We find the L′-band emission to be dominated by static features which trace forward-scattered dust emission from the inner edge of the outer disc located to the north-east. In H- and K-bands, we see evidence for a companion candidate that moved systematically by 45° within the first ~345 days. The separation of the companion candidate is not well constrained, but the observed position angle change is consistent with Keplerian motion of a body located on a 6 au orbit. From the SMA CO moment map, the location of the disc rim, and the detected orbital motion, we deduced the three-dimensional orientation of the disc. We see no indication of accretion in Hα and set upper limits for an accreting companion. Conclusions. The measured contrast of the companion candidate in H and K is consistent with an actively accreting protoplanet. Hence, we identify V1247 Ori as a unique laboratory for studying companion–disc interactions and disc clearing. [ABSTRACT FROM AUTHOR]

Published
2019
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126. DM ORI: A YOUNG STAR OCCULTED BY A DISTURBANCE IN ITS PROTOPLANETARY DISK

Author

Rodriguez, Joseph E., primary, Stassun, Keivan G., additional, Cargile, Phillip, additional, Shappee, Benjamin J., additional, Siverd, Robert J., additional, Pepper, Joshua, additional, Lund, Michael B., additional, Kochanek, Christopher S., additional, James, David, additional, Kuhn, Rudolf B., additional, Beatty, Thomas G., additional, Gaudi, B. Scott, additional, Weintraub, David A., additional, Stanek, Krzysztof Z., additional, Holoien, Thomas W.-S., additional, Prieto, Jose L., additional, Feldman, Daniel M., additional, and Espaillat, Catherine C., additional

Published
2016
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127. IMAGING THE PHOTOEVAPORATING DISK AND RADIO JET OF GM AUR

Author

Macías, Enrique, primary, Anglada, Guillem, additional, Osorio, Mayra, additional, Calvet, Nuria, additional, Torrelles, José M., additional, Gómez, José F., additional, Espaillat, Catherine, additional, Lizano, Susana, additional, Rodríguez, Luis F., additional, Carrasco-González, Carlos, additional, and Zapata, Luis, additional

Published
2016
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128. THE SPITZER INFRARED SPECTROGRAPH SURVEY OF PROTOPLANETARY DISKS IN ORION A. I. DISK PROPERTIES

Author

Kim, K. H., primary, Watson, Dan M., additional, Manoj, P., additional, Forrest, W. J., additional, Furlan, Elise, additional, Najita, Joan, additional, Sargent, Benjamin, additional, Hernández, Jesús, additional, Calvet, Nuria, additional, Adame, Lucía, additional, Espaillat, Catherine, additional, Megeath, S. T., additional, Muzerolle, James, additional, and McClure, M. K., additional

Published
2016
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129. Planet Formation Imager (PFI): science vision and key requirements

Author

Kraus, Stefan, additional, Monnier, John D., additional, Ireland, Michael J., additional, Duchêne, Gaspard, additional, Espaillat, Catherine, additional, Hönig, Sebastian, additional, Juhasz, Attila, additional, Mordasini, Chris, additional, Olofsson, Johan, additional, Paladini, Claudia, additional, Stassun, Keivan, additional, Turner, Neal, additional, Vasisht, Gautam, additional, Harries, Tim J., additional, Bate, Matthew R., additional, Gonzalez, Jean-François, additional, Matter, Alexis, additional, Zhu, Zhaohuan, additional, Panic, Olja, additional, Regaly, Zsolt, additional, Morbidelli, Alessandro, additional, Meru, Farzana, additional, Wolf, Sebastian, additional, Ilee, John, additional, Berger, Jean-Philippe, additional, Zhao, Ming, additional, Kral, Quentin, additional, Morlok, Andreas, additional, Bonsor, Amy, additional, Ciardi, David, additional, Kane, Stephen R., additional, Kratter, Kaitlin, additional, Laughlin, Greg, additional, Pepper, Joshua, additional, Raymond, Sean, additional, Labadie, Lucas, additional, Nelson, Richard P., additional, Weigelt, Gerd, additional, ten Brummelaar, Theo, additional, Pierens, Arnaud, additional, Oudmaijer, Rene, additional, Kley, Wilhelm, additional, Pope, Benjamin, additional, Jensen, Eric L. N., additional, Bayo, Amelia, additional, Smith, Michael, additional, Boyajian, Tabetha, additional, Quiroga-Nuñez, Luis Henry, additional, Millan-Gabet, Rafael, additional, Chiavassa, Andrea, additional, Gallenne, Alexandre, additional, Reynolds, Mark, additional, de Wit, Willem-Jan, additional, Wittkowski, Markus, additional, Millour, Florentin, additional, Gandhi, Poshak, additional, Ramos Almeida, Cristina, additional, Alonso Herrero, Almudena, additional, Packham, Chris, additional, Kishimoto, Makoto, additional, Tristram, Konrad R. W., additional, Pott, Jörg-Uwe, additional, Surdej, Jean, additional, Buscher, David, additional, Haniff, Chris, additional, Lacour, Sylvestre, additional, Petrov, Romain, additional, Ridgway, Steve, additional, Tuthill, Peter, additional, van Belle, Gerard, additional, Armitage, Phil, additional, Baruteau, Clement, additional, Benisty, Myriam, additional, Bitsch, Bertram, additional, Paardekooper, Sijme-Jan, additional, Pinte, Christophe, additional, Masset, Frederic, additional, and Rosotti, Giovanni, additional

Published
2016
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130. Characterizing New Transitional Disks in the Taurus Star Forming Region

Author

Powell, Diana, Espaillat, Catherine, Qi, Charlie, Andrews, Sean, and Wilner, David

Subjects
Protoplanetary disks, Circumstellar disks, Astronomy, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Taurus, Astrophysics::Galaxy Astrophysics
Abstract

We present a multi-wavelength study of two new transitional disks in the Taurus star forming region. It is thought that when planets form in young disks, they clear out material in the disk and leave behind signatures in the form of holes, thus it is important that we constrain the parameters of these disks in order to develop a deeper understanding of planetary evolution. Here we model the spectral energy distributions (SEDs) of these disks. For these two objects (V410 X-ray 2 and IRAS04125+2902) we also present high resolution SMA images. We obtained estimates of the hole sizes of these two disks through the use of the models and the images. Our results are show that for IRAS04125+2902 the most likely cause of the hole is planetary formation but the possibility of a close stellar companion cannot be ruled out. For V410 X-ray 2, our results show that the hole could be caused by either the formation of planets or by the effects of photoevaporation.

Published
2013
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131. NEAR-IR POLARIZED SCATTERED LIGHT IMAGERY OF THE DoAr 28 TRANSITIONAL DISK

Author

Rich, Evan A., primary, Wisniewski, John P., additional, Mayama, Satoshi, additional, Brandt, Timothy D., additional, Hashimoto, Jun, additional, Kudo, Tomoyuki, additional, Kusakabe, Nobuhiko, additional, Espaillat, Catherine, additional, Abe, Lyu, additional, Akiyama, Eiji, additional, Brandner, Wolfgang, additional, Carson, Joseph C., additional, Currie, Thayne, additional, Egner, Sebastian, additional, Feldt, Markus, additional, Follette, Kate, additional, Goto, Miwa, additional, Grady, Carol A., additional, Guyon, Olivier, additional, Hayano, Yutaka, additional, Hayashi, Masahiko, additional, Hayashi, Saeko S., additional, Henning, Thomas, additional, Hodapp, Klaus W., additional, Ishii, Miki, additional, Iye, Masanori, additional, Janson, Markus, additional, Kandori, Ryo, additional, Knapp, Gillian R., additional, Kuzuhara, Masayuki, additional, Kwon, Jungmi, additional, Matsuo, Taro, additional, McElwain, Michael W., additional, Miyama, Shoken, additional, Morino, Jun-Ichi, additional, Moro-Martin, Amaya, additional, Nishimura, Tetsuo, additional, Pyo, Tae-Soo, additional, Qi, Chunhua, additional, Serabyn, Eugene, additional, Suenaga, Takuya, additional, Suto, Hiroshi, additional, Suzuki, Ryuji, additional, Takahashi, Yasuhiro H., additional, Takami, Michihiro, additional, Takato, Naruhisa, additional, Terada, Hiroshi, additional, Thalmann, Christian, additional, Tomono, Daigo, additional, Turner, Edwin L., additional, Watanabe, Makoto, additional, Yamada, Toru, additional, Takami, Hideki, additional, Usuda, Tomonori, additional, and Tamura, Motohide, additional

Published
2015
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135. CSI 2264: SIMULTANEOUS OPTICAL AND INFRARED LIGHT CURVES OF YOUNG DISK-BEARING STARS IN NGC 2264 WITHCoRoTandSPITZER—EVIDENCE FOR MULTIPLE ORIGINS OF VARIABILITY

Author

Cody, Ann Marie, primary, Stauffer, John, additional, Baglin, Annie, additional, Micela, Giuseppina, additional, Rebull, Luisa M., additional, Flaccomio, Ettore, additional, Morales-Calderón, María, additional, Aigrain, Suzanne, additional, Bouvier, Jèrôme, additional, Hillenbrand, Lynne A., additional, Gutermuth, Robert, additional, Song, Inseok, additional, Turner, Neal, additional, Alencar, Silvia H. P., additional, Zwintz, Konstanze, additional, Plavchan, Peter, additional, Carpenter, John, additional, Findeisen, Krzysztof, additional, Carey, Sean, additional, Terebey, Susan, additional, Hartmann, Lee, additional, Calvet, Nuria, additional, Teixeira, Paula, additional, Vrba, Frederick J., additional, Wolk, Scott, additional, Covey, Kevin, additional, Poppenhaeger, Katja, additional, Günther, Hans Moritz, additional, Forbrich, Jan, additional, Whitney, Barbara, additional, Affer, Laura, additional, Herbst, William, additional, Hora, Joseph, additional, Barrado, David, additional, Holtzman, Jon, additional, Marchis, Franck, additional, Wood, Kenneth, additional, Guimarães, Marcelo Medeiros, additional, Lillo Box, Jorge, additional, Gillen, Ed, additional, McQuillan, Amy, additional, Espaillat, Catherine, additional, Allen, Lori, additional, D'Alessio, Paola, additional, and Favata, Fabio, additional

Published
2014
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136. HOT GAS LINES IN T TAURI STARS

Author

Ardila, David R., primary, Herczeg, Gregory J., additional, Gregory, Scott G., additional, Ingleby, Laura, additional, France, Kevin, additional, Brown, Alexander, additional, Edwards, Suzan, additional, Johns-Krull, Christopher, additional, Linsky, Jeffrey L., additional, Yang, Hao, additional, Valenti, Jeff A., additional, Abgrall, Hervé, additional, Alexander, Richard D., additional, Bergin, Edwin, additional, Bethell, Thomas, additional, Brown, Joanna M., additional, Calvet, Nuria, additional, Espaillat, Catherine, additional, Hillenbrand, Lynne A., additional, Hussain, Gaitee, additional, Roueff, Evelyne, additional, Schindhelm, Rebecca N., additional, and Walter, Frederick M., additional

Published
2013
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138. TRANSITIONAL DISKS AND THEIR ORIGINS: AN INFRARED SPECTROSCOPIC SURVEY OF ORION A

Author

Kim, K. H., primary, Watson, Dan M., additional, Manoj, P., additional, Forrest, W. J., additional, Najita, Joan, additional, Furlan, Elise, additional, Sargent, Benjamin, additional, Espaillat, Catherine, additional, Muzerolle, James, additional, Megeath, S. T., additional, Calvet, Nuria, additional, Green, Joel D., additional, and Arnold, Laura, additional

Published
2013
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139. RESOLVING THE GAP AND AU-SCALE ASYMMETRIES IN THE PRE-TRANSITIONAL DISK OF V1247 ORIONIS

Author

Kraus, Stefan, primary, Ireland, Michael J., additional, Sitko, Michael L., additional, Monnier, John D., additional, Calvet, Nuria, additional, Espaillat, Catherine, additional, Grady, Carol A., additional, Harries, Tim J., additional, Hönig, Sebastian F., additional, Russell, Ray W., additional, Swearingen, Jeremy R., additional, Werren, Chelsea, additional, and Wilner, David J., additional

Published
2013
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140. ACCRETION RATES FOR T TAURI STARS USING NEARLY SIMULTANEOUS ULTRAVIOLET AND OPTICAL SPECTRA

Author

Ingleby, Laura, primary, Calvet, Nuria, additional, Herczeg, Gregory, additional, Blaty, Alex, additional, Walter, Frederick, additional, Ardila, David, additional, Alexander, Richard, additional, Edwards, Suzan, additional, Espaillat, Catherine, additional, Gregory, Scott G., additional, Hillenbrand, Lynne, additional, and Brown, Alexander, additional

Published
2013
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144. THE TW Hya DISK AT 870 μm: COMPARISON OF CO AND DUST RADIAL STRUCTURES

Author

Andrews, Sean M., primary, Wilner, David J., additional, Hughes, A. M., additional, Qi, Chunhua, additional, Rosenfeld, Katherine A., additional, Öberg, Karin I., additional, Birnstiel, T., additional, Espaillat, Catherine, additional, Cieza, Lucas A., additional, Williams, Jonathan P., additional, Lin, Shin-Yi, additional, and Ho, Paul T. P., additional

Published
2011
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145. NEAR-ULTRAVIOLET EXCESS IN SLOWLY ACCRETING T TAURI STARS: LIMITS IMPOSED BY CHROMOSPHERIC EMISSION

Author

Ingleby, Laura, primary, Calvet, Nuria, additional, Bergin, Edwin, additional, Herczeg, Gregory, additional, Brown, Alexander, additional, Alexander, Richard, additional, Edwards, Suzan, additional, Espaillat, Catherine, additional, France, Kevin, additional, Gregory, Scott G., additional, Hillenbrand, Lynne, additional, Roueff, Evelyne, additional, Valenti, Jeff, additional, Walter, Frederick, additional, Johns-Krull, Christopher, additional, Brown, Joanna, additional, Linsky, Jeffrey, additional, McClure, Melissa, additional, Ardila, David, additional, Abgrall, Hervé, additional, Bethell, Thomas, additional, Hussain, Gaitee, additional, and Yang, Hao, additional

Published
2011
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147. THE FAR-ULTRAVIOLET “CONTINUUM” IN PROTOPLANETARY DISK SYSTEMS. II. CARBON MONOXIDE FOURTH POSITIVE EMISSION AND ABSORPTION*

Author

France, Kevin, primary, Schindhelm, Rebecca N., additional, Burgh, Eric B., additional, Herczeg, Gregory J., additional, Harper, Graham M., additional, Brown, Alexander, additional, Green, James C., additional, Linsky, Jeffrey L., additional, Yang, Hao, additional, Abgrall, Hervé, additional, Ardila, David R., additional, Bergin, Edwin, additional, Bethell, Thomas, additional, Brown, Joanna M., additional, Calvet, Nuria, additional, Espaillat, Catherine, additional, Gregory, Scott G., additional, Hillenbrand, Lynne A., additional, Hussain, Gaitee, additional, Ingleby, Laura, additional, Johns-Krull, Christopher M., additional, Roueff, Evelyne, additional, Valenti, Jeff A., additional, and Walter, Frederick M., additional

Published
2011
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