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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2504.19986 |
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| _version_ | 1866915263742476288 |
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| author | Izquierdo, Andrés F. Stadler, Jochen Galloway-Sprietsma, Maria Benisty, Myriam Pinte, Christophe Bae, Jaehan Teague, Richard Facchini, Stefano Wölfer, Lisa Longarini, Cristiano Curone, Pietro Andrews, Sean M. Barraza-Alfaro, Marcelo Cataldi, Gianni Cuello, Nicolás Czekala, Ian Fasano, Daniele Flock, Mario Fukagawa, Misato Garg, Himanshi Hall, Cassandra Hammond, Iain Hilder, Thomas Huang, Jane Ilee, John D. Isella, Andrea Kanagawa, Kazuhiro Lesur, Geoffroy Lodato, Giuseppe Loomis, Ryan A. Orihara, Ryuta Price, Daniel J. Rosotti, Giovanni Testi, Leonardo Yen, Hsi-Wei Wafflard-Fernandez, Gaylor Wilner, David J. Winter, Andrew J. Yoshida, Tomohiro C. Zawadzki, Brianna |
| author_facet | Izquierdo, Andrés F. Stadler, Jochen Galloway-Sprietsma, Maria Benisty, Myriam Pinte, Christophe Bae, Jaehan Teague, Richard Facchini, Stefano Wölfer, Lisa Longarini, Cristiano Curone, Pietro Andrews, Sean M. Barraza-Alfaro, Marcelo Cataldi, Gianni Cuello, Nicolás Czekala, Ian Fasano, Daniele Flock, Mario Fukagawa, Misato Garg, Himanshi Hall, Cassandra Hammond, Iain Hilder, Thomas Huang, Jane Ilee, John D. Isella, Andrea Kanagawa, Kazuhiro Lesur, Geoffroy Lodato, Giuseppe Loomis, Ryan A. Orihara, Ryuta Price, Daniel J. Rosotti, Giovanni Testi, Leonardo Yen, Hsi-Wei Wafflard-Fernandez, Gaylor Wilner, David J. Winter, Andrew J. Yoshida, Tomohiro C. Zawadzki, Brianna |
| contents | 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 12CO, 13CO, 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, 13CO, 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 modelling framework, incorporates an improved iterative two-component fitting method for inclined sources ($i>40^\circ$), to mitigate the impact of the disk backside 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_19986 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | exoALMA III: Line-intensity Modeling and System Property Extraction from Protoplanetary Disks Izquierdo, Andrés F. Stadler, Jochen Galloway-Sprietsma, Maria Benisty, Myriam Pinte, Christophe Bae, Jaehan Teague, Richard Facchini, Stefano Wölfer, Lisa Longarini, Cristiano Curone, Pietro Andrews, Sean M. Barraza-Alfaro, Marcelo Cataldi, Gianni Cuello, Nicolás Czekala, Ian Fasano, Daniele Flock, Mario Fukagawa, Misato Garg, Himanshi Hall, Cassandra Hammond, Iain Hilder, Thomas Huang, Jane Ilee, John D. Isella, Andrea Kanagawa, Kazuhiro Lesur, Geoffroy Lodato, Giuseppe Loomis, Ryan A. Orihara, Ryuta Price, Daniel J. Rosotti, Giovanni Testi, Leonardo Yen, Hsi-Wei Wafflard-Fernandez, Gaylor Wilner, David J. Winter, Andrew J. Yoshida, Tomohiro C. Zawadzki, Brianna Earth and Planetary Astrophysics Solar and Stellar Astrophysics 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 12CO, 13CO, 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, 13CO, 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 modelling framework, incorporates an improved iterative two-component fitting method for inclined sources ($i>40^\circ$), to mitigate the impact of the disk backside 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. |
| title | exoALMA III: Line-intensity Modeling and System Property Extraction from Protoplanetary Disks |
| topic | Earth and Planetary Astrophysics Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2504.19986 |