exoALMA II: Data Calibration and Imaging Pipeline
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866912350410375168 |
|---|---|
| author | Loomis, Ryan A. Facchini, Stefano Benisty, Myriam Curone, Pietro Ilee, John D. Cataldi, Gianni Yen, Hsi-Wei Teague, Richard Pinte, Christophe Huang, Jane Garg, Himanshi Orihara, Ryuta Czekala, Ian Zawadzki, Brianna Andrews, Sean M. Wilner, David J. Bae, Jaehan Barraza-Alfaro, Marcelo Fasano, Daniele Flock, Mario Fukagawa, Misato Galloway-Sprietsma, Maria Izquierdo, Andres F. Kanagawa, Kazuhiro Lesur, Geoffroy Longarini, Cristiano Menard, Francois Price, Daniel J. Rosotti, Giovanni Stadler, Jochen Wafflard-Fernandez, Gaylor Wolfer, Lisa Yoshida, Tomohiro C. |
| author_facet | Loomis, Ryan A. Facchini, Stefano Benisty, Myriam Curone, Pietro Ilee, John D. Cataldi, Gianni Yen, Hsi-Wei Teague, Richard Pinte, Christophe Huang, Jane Garg, Himanshi Orihara, Ryuta Czekala, Ian Zawadzki, Brianna Andrews, Sean M. Wilner, David J. Bae, Jaehan Barraza-Alfaro, Marcelo Fasano, Daniele Flock, Mario Fukagawa, Misato Galloway-Sprietsma, Maria Izquierdo, Andres F. Kanagawa, Kazuhiro Lesur, Geoffroy Longarini, Cristiano Menard, Francois Price, Daniel J. Rosotti, Giovanni Stadler, Jochen Wafflard-Fernandez, Gaylor Wolfer, Lisa Yoshida, Tomohiro C. |
| contents | The exoALMA Large Program was designed to search for subtle kinematic deviations from Keplerian motion, indicative of embedded planets, in high angular and spectral resolution Band 7 observations of $^{12}$CO, $^{13}$CO and CS emission from protoplanetary disks. This paper summarizes the calibration and imaging pipelines used by the exoALMA collaboration. With sources ranging in diameter from 2.4" to 13.8" when probed by $^{12}$CO, multiple antennae configurations were required to maximally recover all spatial information (including the ACA for 7 sources). Combining these datasets warranted particular care in their alignment during calibration and prior to imaging, so as not to introduce spurious features that might resemble the kinematic deviations being investigated. Phase decoherence was found in several datasets, which was corrected by an iterative self-calibration procedure, and we explored the effects of the order of operations of spatial alignment, flux scaling, and self-calibration. A number of different imaging sets were produced for the continuum and line emission, employing an iterative masking procedure that minimizes bias due to non-Keplerian motions in the disk. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_19870 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | exoALMA II: Data Calibration and Imaging Pipeline Loomis, Ryan A. Facchini, Stefano Benisty, Myriam Curone, Pietro Ilee, John D. Cataldi, Gianni Yen, Hsi-Wei Teague, Richard Pinte, Christophe Huang, Jane Garg, Himanshi Orihara, Ryuta Czekala, Ian Zawadzki, Brianna Andrews, Sean M. Wilner, David J. Bae, Jaehan Barraza-Alfaro, Marcelo Fasano, Daniele Flock, Mario Fukagawa, Misato Galloway-Sprietsma, Maria Izquierdo, Andres F. Kanagawa, Kazuhiro Lesur, Geoffroy Longarini, Cristiano Menard, Francois Price, Daniel J. Rosotti, Giovanni Stadler, Jochen Wafflard-Fernandez, Gaylor Wolfer, Lisa Yoshida, Tomohiro C. Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics The exoALMA Large Program was designed to search for subtle kinematic deviations from Keplerian motion, indicative of embedded planets, in high angular and spectral resolution Band 7 observations of $^{12}$CO, $^{13}$CO and CS emission from protoplanetary disks. This paper summarizes the calibration and imaging pipelines used by the exoALMA collaboration. With sources ranging in diameter from 2.4" to 13.8" when probed by $^{12}$CO, multiple antennae configurations were required to maximally recover all spatial information (including the ACA for 7 sources). Combining these datasets warranted particular care in their alignment during calibration and prior to imaging, so as not to introduce spurious features that might resemble the kinematic deviations being investigated. Phase decoherence was found in several datasets, which was corrected by an iterative self-calibration procedure, and we explored the effects of the order of operations of spatial alignment, flux scaling, and self-calibration. A number of different imaging sets were produced for the continuum and line emission, employing an iterative masking procedure that minimizes bias due to non-Keplerian motions in the disk. |
| title | exoALMA II: Data Calibration and Imaging Pipeline |
| topic | Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2504.19870 |