The Astrophysical Journal (Jan 2024)
MINDS. JWST/MIRI Reveals a Dynamic Gas-rich Inner Disk inside the Cavity of SY Cha
- Kamber R. Schwarz,
- Thomas Henning,
- Valentin Christiaens,
- Danny Gasman,
- Matthias Samland,
- Giulia Perotti,
- Hyerin Jang,
- Sierra L. Grant,
- Benoît Tabone,
- Maria Morales-Calderón,
- Inga Kamp,
- Ewine F. van Dishoeck,
- Manuel Güdel,
- Pierre-Olivier Lagage,
- David Barrado,
- Alessio Caratti o Garatti,
- Adrian M. Glauser,
- Tom P. Ray,
- Bart Vandenbussche,
- L. B. F. M. Waters,
- Aditya M. Arabhavi,
- Jayatee Kanwar,
- Göran Olofsson,
- Donna Rodgers-Lee,
- Jürgen Schreiber,
- Milou Temmink
Affiliations
- Kamber R. Schwarz
- ORCiD
- Max-Planck-Institut für Astronomie (MPIA) , Königstuhl 17, D-69117 Heidelberg, Germany
- Thomas Henning
- ORCiD
- Max-Planck-Institut für Astronomie (MPIA) , Königstuhl 17, D-69117 Heidelberg, Germany
- Valentin Christiaens
- ORCiD
- STAR Institute, Université de Liège , Allée du Six Août 19c, B-4000 Liège, Belgium
- Danny Gasman
- ORCiD
- Institute of Astronomy , KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
- Matthias Samland
- ORCiD
- Max-Planck-Institut für Astronomie (MPIA) , Königstuhl 17, D-69117 Heidelberg, Germany
- Giulia Perotti
- ORCiD
- Max-Planck-Institut für Astronomie (MPIA) , Königstuhl 17, D-69117 Heidelberg, Germany
- Hyerin Jang
- Department of Astrophysics/IMAPP, Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Sierra L. Grant
- ORCiD
- Max-Planck Institut für Extraterrestrische Physik (MPE) , Giessenbachstr. 1, D-85748, Garching, Germany
- Benoît Tabone
- ORCiD
- Université Paris-Saclay , CNRS, Institut d’Astrophysique Spatiale, F-91405 Orsay, France
- Maria Morales-Calderón
- ORCiD
- Centro de Astrobiología (CAB) , CSIC-INTA, ESAC Campus, Camino Bajo del Castillo s/n, E-28692 Villanueva de la Cañada, Madrid, Spain
- Inga Kamp
- ORCiD
- Kapteyn Astronomical Institute, Rijksuniversiteit Groningen , Postbus 800, 9700AV Groningen, The Netherlands
- Ewine F. van Dishoeck
- ORCiD
- Max-Planck Institut für Extraterrestrische Physik (MPE) , Giessenbachstr. 1, D-85748, Garching, Germany; Leiden Observatory, Leiden University , 2300 RA Leiden, The Netherlands
- Manuel Güdel
- ORCiD
- Max-Planck-Institut für Astronomie (MPIA) , Königstuhl 17, D-69117 Heidelberg, Germany; Dept. of Astrophysics, University of Vienna , Türkenschanzstr. 17, A-1180 Vienna, Austria; ETH Zürich, Institute for Particle Physics and Astrophysics , Wolfgang-Pauli-Str. 27, 8093 Zürich, Switzerland
- Pierre-Olivier Lagage
- Université Paris-Saclay, Université Paris Cité , CEA, CNRS, AIM, F-91191 Gif-sur-Yvette, France
- David Barrado
- ORCiD
- Centro de Astrobiología (CAB) , CSIC-INTA, ESAC Campus, Camino Bajo del Castillo s/n, E-28692 Villanueva de la Cañada, Madrid, Spain
- Alessio Caratti o Garatti
- ORCiD
- INAF—Osservatorio Astronomico di Capodimonte , Salita Moiariello 16, I-80131 Napoli, Italy; Dublin Institute for Advanced Studies , 31 Fitzwilliam Place, Dublin D02 XF86, Ireland
- Adrian M. Glauser
- ORCiD
- ETH Zürich, Institute for Particle Physics and Astrophysics , Wolfgang-Pauli-Str. 27, 8093 Zürich, Switzerland
- Tom P. Ray
- ORCiD
- Dublin Institute for Advanced Studies , 31 Fitzwilliam Place, Dublin D02 XF86, Ireland
- Bart Vandenbussche
- ORCiD
- Institute of Astronomy , KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
- L. B. F. M. Waters
- ORCiD
- Department of Astrophysics/IMAPP, Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands; SRON Netherlands Institute for Space Research , Niels Bohrweg 4, NL-2333 CA Leiden, The Netherlands
- Aditya M. Arabhavi
- ORCiD
- Kapteyn Astronomical Institute, Rijksuniversiteit Groningen , Postbus 800, 9700AV Groningen, The Netherlands
- Jayatee Kanwar
- ORCiD
- Kapteyn Astronomical Institute, Rijksuniversiteit Groningen , Postbus 800, 9700AV Groningen, The Netherlands; Space Research Institute, Austrian Academy of Sciences , Schmiedlstr. 6, A-8042, Graz, Austria; TU Graz, Fakultät für Mathematik , Physik und Geodäsie, Petersgasse 16 A-8010 Graz, Austria
- Göran Olofsson
- ORCiD
- Department of Astronomy, Stockholm University , AlbaNova University Center, SE-10691 Stockholm, Sweden
- Donna Rodgers-Lee
- ORCiD
- Dublin Institute for Advanced Studies , 31 Fitzwilliam Place, Dublin D02 XF86, Ireland
- Jürgen Schreiber
- Max-Planck-Institut für Astronomie (MPIA) , Königstuhl 17, D-69117 Heidelberg, Germany
- Milou Temmink
- ORCiD
- Leiden Observatory, Leiden University , 2300 RA Leiden, The Netherlands
- DOI
- https://doi.org/10.3847/1538-4357/ad1393
- Journal volume & issue
-
Vol. 962,
no. 1
p. 8
Abstract
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 of a full disk. Here we report the first results from JWST/Mid-InfraRed Instrument (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 H _2 O, CO, HCN, and CO _2 emission as well as a marginal detection of C _2 H _2 . We also report the first robust detection of mid-infrared OH and rovibrational 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.
Keywords
