The Astrophysical Journal Letters (Jan 2025)
exoALMA. III. Line-intensity Modeling and System Property Extraction from Protoplanetary Disks
- Andrés F. Izquierdo,
- Jochen Stadler,
- Maria Galloway-Sprietsma,
- Myriam Benisty,
- Christophe Pinte,
- Jaehan Bae,
- Richard Teague,
- Stefano Facchini,
- Lisa Wölfer,
- Cristiano Longarini,
- Pietro Curone,
- Sean M. Andrews,
- Marcelo Barraza-Alfaro,
- Gianni Cataldi,
- Nicolás Cuello,
- Ian Czekala,
- Daniele Fasano,
- Mario Flock,
- Misato Fukagawa,
- Himanshi Garg,
- Cassandra Hall,
- Iain Hammond,
- Thomas Hilder,
- Jane Huang,
- John D. Ilee,
- Andrea Isella,
- Kazuhiro Kanagawa,
- Geoffroy Lesur,
- Giuseppe Lodato,
- Ryan A. Loomis,
- Ryuta Orihara,
- Daniel J. Price,
- Giovanni Rosotti,
- Leonardo Testi,
- Hsi-Wei Yen,
- Gaylor Wafflard-Fernandez,
- David J. Wilner,
- Andrew J. Winter,
- Tomohiro C. Yoshida,
- Brianna Zawadzki
Affiliations
- Andrés F. Izquierdo
- ORCiD
- Department of Astronomy, University of Florida , Gainesville, FL 32611, USA ; [email protected]; Leiden Observatory, Leiden University , P.O. Box 9513, NL-2300 RA Leiden, The Netherlands; European Southern Observatory , Karl-Schwarzschild-Str. 2, D-85748 Garching bei München, Germany
- Jochen Stadler
- ORCiD
- Université Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, 06304 Nice, France
- Maria Galloway-Sprietsma
- ORCiD
- Department of Astronomy, University of Florida , Gainesville, FL 32611, USA ; [email protected]
- Myriam Benisty
- ORCiD
- Université Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, 06304 Nice, France
- Christophe Pinte
- ORCiD
- Université Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France; School of Physics and Astronomy, Monash University , Clayton VIC 3800, Australia
- Jaehan Bae
- ORCiD
- Department of Astronomy, University of Florida , Gainesville, FL 32611, USA ; [email protected]
- Richard Teague
- ORCiD
- Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology , Cambridge, MA 02139, USA
- Stefano Facchini
- ORCiD
- Dipartimento di Fisica, Università degli Studi di Milano , Via Celoria 16, 20133 Milano, Italy
- Lisa Wölfer
- ORCiD
- Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology , Cambridge, MA 02139, USA
- Cristiano Longarini
- ORCiD
- Dipartimento di Fisica, Università degli Studi di Milano , Via Celoria 16, 20133 Milano, Italy; Institute of Astronomy, University of Cambridge , Madingley Road, CB3 0HA, Cambridge, UK
- Pietro Curone
- ORCiD
- Dipartimento di Fisica, Università degli Studi di Milano , Via Celoria 16, 20133 Milano, Italy; Departamento de Astronomía, Universidad de Chile , Camino El Observatorio 1515, Las Condes, Santiago, Chile
- Sean M. Andrews
- ORCiD
- Center for Astrophysics—Harvard & Smithsonian , Cambridge, MA 02138, USA
- Marcelo Barraza-Alfaro
- ORCiD
- Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology , Cambridge, MA 02139, USA
- Gianni Cataldi
- ORCiD
- National Astronomical Observatory of Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Nicolás Cuello
- ORCiD
- Université Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
- Ian Czekala
- ORCiD
- Centre for Exoplanet Science, University of St. Andrews , North Haugh, St. Andrews, KY16 9SS, UK; School of Physics & Astronomy, University of St. Andrews , North Haugh, St. Andrews, KY16 9SS, UK
- Daniele Fasano
- ORCiD
- Université Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, 06304 Nice, France
- Mario Flock
- ORCiD
- Max-Planck Institute for Astronomy (MPIA) , Königstuhl 17, 69117 Heidelberg, Germany
- Misato Fukagawa
- ORCiD
- National Astronomical Observatory of Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Himanshi Garg
- ORCiD
- School of Physics and Astronomy, Monash University , Clayton VIC 3800, Australia
- Cassandra Hall
- ORCiD
- Department of Physics and Astronomy, The University of Georgia , Athens, GA 30602, USA; Center for Simulational Physics, The University of Georgia , Athens, GA 30602, USA; Institute for Artificial Intelligence, The University of Georgia , Athens, GA 30602, USA
- Iain Hammond
- ORCiD
- School of Physics and Astronomy, Monash University , Clayton VIC 3800, Australia
- Thomas Hilder
- ORCiD
- School of Physics and Astronomy, Monash University , Clayton VIC 3800, Australia
- Jane Huang
- ORCiD
- Department of Astronomy, Columbia University , 538 W. 120th Street, Pupin Hall, New York, NY, USA
- John D. Ilee
- ORCiD
- School of Physics and Astronomy, University of Leeds , Leeds, LS2 9JT, UK
- Andrea Isella
- ORCiD
- Department of Physics and Astronomy, Rice University , 6100 Main Street, Houston, TX 77005, USA; Rice Space Institute, Rice University , 6100 Main Street, Houston, TX 77005, USA
- Kazuhiro Kanagawa
- ORCiD
- College of Science, Ibaraki University , 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
- Geoffroy Lesur
- ORCiD
- Université Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
- Giuseppe Lodato
- ORCiD
- Dipartimento di Fisica, Università degli Studi di Milano , Via Celoria 16, 20133 Milano, Italy
- Ryan A. Loomis
- ORCiD
- National Radio Astronomy Observatory , 520 Edgemont Road, Charlottesville, VA 22903, USA
- Ryuta Orihara
- ORCiD
- College of Science, Ibaraki University , 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
- Daniel J. Price
- ORCiD
- School of Physics and Astronomy, Monash University , Clayton VIC 3800, Australia
- Giovanni Rosotti
- ORCiD
- Dipartimento di Fisica, Università degli Studi di Milano , Via Celoria 16, 20133 Milano, Italy
- Leonardo Testi
- ORCiD
- Dipartimento di Fisica e Astronomia, Università di Bologna , I-40190 Bologna, Italy
- Hsi-Wei Yen
- ORCiD
- Academia Sinica Institute of Astronomy & Astrophysics , 11F of Astronomy-Mathematics Building, AS/NTU, No.1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
- Gaylor Wafflard-Fernandez
- ORCiD
- Université Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
- David J. Wilner
- ORCiD
- Center for Astrophysics—Harvard & Smithsonian , Cambridge, MA 02138, USA
- Andrew J. Winter
- ORCiD
- Université Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, 06304 Nice, France
- Tomohiro C. Yoshida
- ORCiD
- National Astronomical Observatory of Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Department of Astronomical Science, The Graduate University for Advanced Studies , SOKENDAI, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Brianna Zawadzki
- ORCiD
- Department of Astronomy, Van Vleck Observatory, Wesleyan University , 96 Foss Hill Drive, Middletown, CT 06459, USA; Department of Astronomy & Astrophysics, 525 Davey Laboratory, The Pennsylvania State University , University Park, PA 16802, USA
- DOI
- https://doi.org/10.3847/2041-8213/adc439
- Journal volume & issue
-
Vol. 984,
no. 1
p. L8
Abstract
The ALMA large program exoALMA offers a unique window into the three-dimensional physical and dynamical properties of 15 circumstellar disks where planets may be actively forming. Here, we present an analysis methodology to map the gas disk structure and substructure encoded in ^12 CO, ^13 CO, and CS line emission from our targets. To model and characterize the disk structure probed by optically thin species, such as CS and, in some cases, ^13 CO, we introduce a composite line profile kernel that accounts for increased intensities caused by the projected overlap between the disk’s front and back side emission. Our workflow, built on the discminer modeling framework, incorporates an improved iterative two-component fitting method for inclined sources ( i > 40 ^∘ ) to mitigate the impact of the disk back side on the extraction of velocity maps. Also, we report best-fit parameters for the Keplerian stellar masses, as well as inclinations, position angles, systemic velocities, rotation direction, and emission surfaces of the disks in our sample.
Keywords
