| Title: |
The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems. III. Aperture Masking Interferometric Observations of the Star HIP 65426 at 3.8 μ m |
| Authors: |
Ray, Shrishmoy; Sallum, Steph; Hinkley, Sasha; Sivaramkrishnan, Anand; Cooper, Rachel; Kammerer, Jens; Greebaum, Alexandra, Z; Thatte, Deeparshi; Stolker, Tomas; Lazzoni, Cecilia; Tokovinin, Andrei; de Furio, Matthew; Factor, Samuel; Meyer, Michael, R; Stone, Jordan, M; Carter, Aarynn; Biller, Beth; Skemer, Andrew; Suárez, Genaro; Leisenring, Jarron, M; Perrin, Marshall, D; Kraus, Adam, L; Absil, Olivier; Balmer, William, O; Boccaletti, Anthony; Bonavita, Mariangela; Bonnefoy, Mickael; Booth, Mark; Bowler, Brendan, P; Briesemeister, Zackery, W; Bryan, Marta, L; Calissendorff, Per; Cantalloube, Faustine; Chauvin, Gael; Chen, Christine, H; Choquet, Elodie; Christiaens, Valentin; Cugno, Gabriele; Currie, Thayne; Danielski, Camilla; Dupuy, Trent, J; Faherty, Jacqueline, K; Fitzgerald, Michael, P; Fortney, Jonathan, J; Franson, Kyle; Girard, Julien, H; Grady, Carol, A; Gonzales, Eileen, C; Henning, Thomas; Hines, Dean, C; Hoch, Kielan, K W; Hood, Callie, E; Howe, Alex, R; Janson, Markus; Kalas, Paul; Kennedy, Grant, M; Kenworthy, Matthew, A; Kervella, Pierre; Kuzuhara, Masayuki; Lagrange, Anne-Marie; Lagage, Pierre-Olivier; Lawson, Kellen; Lew, Ben, W P; Liu, Michael, C; Liu, Pengyu; Llop-Sayson, Jorge; Lloyd, James, P; Macintosh, Bruce; Marino, Sebastian; Marley, Mark, S; Marois, Christian; Martinez, Raquel, A; Matthews, Brenda, C; Matthews, Elisabeth, C; Mawet, Dimitri; Mazoyer, Johan; Mcelwain, Michael, W; Metchev, Stanimir; Miles, Brittany, E; Millar-Blanchaer, Maxwell, A; Molliere, Paul; Moran, Sarah, E; Morley, Caroline, V; Mukherjee, Sagnick; Palma-Bifani, Paulina; Pantin, Eric; Patapis, Polychronis; Petrus, Simon; Pueyo, Laurent; Quanz, Sascha, P; Quirrenbach, Andreas; Rebollido, Isabel; Adams Redai, Jea; Ren, Bin, B; Rickman, Emily; Samland, Matthias; Schlieder, Joshua, E; Schneider, Glenn; Stapelfeldt, Karl, R; Tamura, Motohide; Tan, Xianyu; Uyama, Taichi; Vigan, Arthur; Vasist, Malavika; Vos, Johanna, M; Wagner, Kevin; Wang, Jason, J; Ward-Duong, Kimberly; Whiteford, Niall; Wolff, Schuyler, G; Worthen, Kadin; Wyatt, Mark, C; Ygouf, Marie; Zhang, Xi; Zhang, Keming; Zhang, Zhoujian; Zhou, Yifan; Zurlo, Alice; Sargent, B, A; Theissen, Christopher, A; Manjavacas, Elena; Lueber, Anna; Kitzmann, Daniel; Sutlieff, Ben, J; Betti, Sarah, K |
| Contributors: |
Laboratoire d’Instrumentation et de Recherche en Astrophysique (LIRA); Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-CY Cergy Paris Université (CY); Systèmes exoplanétaires; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-CY Cergy Paris Université (CY)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Observatoire de la Côte d'Azur; Université Côte d'Azur (UniCA); Laboratoire d'Astrophysique de Marseille (LAM); Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS); ANR-10-LABX-0056,OSUG@2020,Innovative strategies for observing and modelling natural systems(2010) |
| Source: |
ISSN: 2041-8205. |
| Publisher Information: |
CCSD; IOP Publishing |
| Publication Year: |
2025 |
| Collection: |
Université Paris Seine: ComUE (HAL) |
| Subject Terms: |
High contrast techniques (2369); Exoplanet astronomy; [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
| Description: |
International audience ; We present aperture masking interferometry (AMI) observations of the star HIP 65426 at 3.8 μm, as part of the JWST Direct Imaging Early Release Science program, obtained using the Near Infrared Imager and Slitless Spectrograph instrument. This mode provides access to very small inner working angles (even separations slightly below the Michelson limit of 0.5λ/D for an interferometer), which are inaccessible with the classical inner working angles of the JWST coronagraphs. When combined with JWST's unprecedented infrared sensitivity, this mode has the potential to probe a new portion of parameter space across a wide array of astronomical observations. Using this mode, we are able to achieve a 5σ contrast of Δm F380M ∼ 7.62 ± 0.13 mag relative to the host star at separations 0 .07, and the contrast deteriorates steeply at separations 0 .07. However, we detect no additional companions interior to the known companion HIP 65426b (at separation ∼0 .82 or - + 87 au 31 108 ). Our observations thus rule out companions more massive than 10-12 M Jup at separations ∼10-20 au from HIP 65426, a region out of reach of ground-or space-based coronagraphic imaging. These observations confirm that the AMI mode on JWST is sensitive to planetary mass companions at close-in separations (0 .07), even for thousands of more distant stars 80 Millennium Nucleus on Young Exoplanets and their Moons (YEMS). |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.3847/2041-8213/adaeb7 |
| Availability: |
https://hal.science/hal-05343593; https://hal.science/hal-05343593v1/document; https://hal.science/hal-05343593v1/file/Ray_2025_ApJL_983_L25.pdf; https://doi.org/10.3847/2041-8213/adaeb7 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.91078101 |
| Database: |
BASE |