MINDS. JWST-MIRI Reveals a Dynamic Gas-Rich Inner Disk Inside the Cavity of SY Cha
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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2023
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| author | Schwarz, Kamber R. Henning, Thomas Christiaens, Valentin Gasman, Danny Samland, Matthias Perotti, Giulia Jang, Hyerin Grant, Sierra L. Tabone, Benoit Morales-Calderon, Maria Kamp, Inga van Dishoeck, Ewine F. Gudel, Manuel Lagage, Pierre-Olivier Argyriou, Ioannis Barrado, David Garatti, Alessio Caratti o Glauser, Adrian M. Ray, Tom P. Vandenbussche, Bart Waters, L. B. F. M. Arabhavi, Aditya M. Kanwar, Jayatee Olofsson, Goran Rodgers-Lee, Donna Schreiber, Jurgen Temmink, Milou |
| author_facet | Schwarz, Kamber R. Henning, Thomas Christiaens, Valentin Gasman, Danny Samland, Matthias Perotti, Giulia Jang, Hyerin Grant, Sierra L. Tabone, Benoit Morales-Calderon, Maria Kamp, Inga van Dishoeck, Ewine F. Gudel, Manuel Lagage, Pierre-Olivier Argyriou, Ioannis Barrado, David Garatti, Alessio Caratti o Glauser, Adrian M. Ray, Tom P. Vandenbussche, Bart Waters, L. B. F. M. Arabhavi, Aditya M. Kanwar, Jayatee Olofsson, Goran Rodgers-Lee, Donna Schreiber, Jurgen Temmink, Milou |
| contents | SY Cha is a T Tauri star surrounded by a protoplanetary disk with a large cavity seen in the millimeter continuum but has the spectral energy distribution (SED) of a full disk. Here we report the first results from JWST-MIRI Medium Resolution Spectrometer (MRS) observations taken as part of the MIRI mid-INfrared Disk Survey (MINDS) GTO Program. The much improved resolution and sensitivity of MIRI-MRS compared to Spitzer enables a robust analysis of the previously detected H2O, CO, HCN, and CO2 emission as well as a marginal detection of C2H2. We also report the first robust detection of mid-infrared OH and ro-vibrational CO emission in this source. The derived molecular column densities reveal the inner disk of SY Cha to be rich in both oxygen and carbon bearing molecules. This is in contrast to PDS 70, another protoplanetary disk with a large cavity observed with JWST, which displays much weaker line emission. In the SY Cha disk, the continuum, and potentially the line, flux varies substantially between the new JWST observations and archival Spitzer observations, indicative of a highly dynamic inner disk. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_07135 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | MINDS. JWST-MIRI Reveals a Dynamic Gas-Rich Inner Disk Inside the Cavity of SY Cha Schwarz, Kamber R. Henning, Thomas Christiaens, Valentin Gasman, Danny Samland, Matthias Perotti, Giulia Jang, Hyerin Grant, Sierra L. Tabone, Benoit Morales-Calderon, Maria Kamp, Inga van Dishoeck, Ewine F. Gudel, Manuel Lagage, Pierre-Olivier Argyriou, Ioannis Barrado, David Garatti, Alessio Caratti o Glauser, Adrian M. Ray, Tom P. Vandenbussche, Bart Waters, L. B. F. M. Arabhavi, Aditya M. Kanwar, Jayatee Olofsson, Goran Rodgers-Lee, Donna Schreiber, Jurgen Temmink, Milou Earth and Planetary Astrophysics Solar and Stellar Astrophysics SY Cha is a T Tauri star surrounded by a protoplanetary disk with a large cavity seen in the millimeter continuum but has the spectral energy distribution (SED) of a full disk. Here we report the first results from JWST-MIRI Medium Resolution Spectrometer (MRS) observations taken as part of the MIRI mid-INfrared Disk Survey (MINDS) GTO Program. The much improved resolution and sensitivity of MIRI-MRS compared to Spitzer enables a robust analysis of the previously detected H2O, CO, HCN, and CO2 emission as well as a marginal detection of C2H2. We also report the first robust detection of mid-infrared OH and ro-vibrational CO emission in this source. The derived molecular column densities reveal the inner disk of SY Cha to be rich in both oxygen and carbon bearing molecules. This is in contrast to PDS 70, another protoplanetary disk with a large cavity observed with JWST, which displays much weaker line emission. In the SY Cha disk, the continuum, and potentially the line, flux varies substantially between the new JWST observations and archival Spitzer observations, indicative of a highly dynamic inner disk. |
| title | MINDS. JWST-MIRI Reveals a Dynamic Gas-Rich Inner Disk Inside the Cavity of SY Cha |
| topic | Earth and Planetary Astrophysics Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2312.07135 |