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 μm
High contrast techniques; Exoplanet astronomy; James Webb Space; Telescope; Direct detection interferometry
Abstract :
[en] 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<SUB>F380M</SUB> ∼ 7.62 ± 0.13 mag relative to the host star at separations ≳0<inline-formula> </inline-formula>07, and the contrast deteriorates steeply at separations ≲0<inline-formula> </inline-formula>07. However, we detect no additional companions interior to the known companion HIP 65426b (at separation ∼0<inline-formula> </inline-formula>82 or <inline-formula> </inline-formula>). Our observations thus rule out companions more massive than 10–12 M<SUB>Jup</SUB> 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<inline-formula> </inline-formula>07), even for thousands of more distant stars at ∼100 pc, in addition to the stars in the nearby young moving groups and associations, as stated in previous works. This result will allow the planning and successful execution of future observations to probe the inner regions of nearby stellar systems, opening an essentially unexplored parameter space.
Research Center/Unit :
STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Ray, Shrishmoy; University of Queensland, School of Mathematics and Physics, University of Exeter, Department of Physics and Astronomy
Sallum, Steph; University of California, Irvine, Department of Physics and Astronomy
Hinkley, Sasha; University of Exeter, Department of Physics and Astronomy
Sivaramkrishnan, Anand; Space Telescope Science Institute, Baltimore, Maryland
Cooper, Rachel; Space Telescope Science Institute, Baltimore, Maryland
Kammerer, Jens; Space Telescope Science Institute, Baltimore, Maryland
Greebaum, Alexandra Z.; Infrared Processing and Analysis Center
Thatte, Deeparshi; Space Telescope Science Institute, Baltimore, Maryland
Stolker, Tomas; Leiden Observatory
Lazzoni, Cecilia; University of Exeter, Department of Physics and Astronomy
Christiaens, Valentin ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Planetary & Stellar systems Imaging Laboratory
Cugno, Gabriele; University of Michigan, Department of Astronomy
Currie, Thayne; Department of Physics and Astronomy, University of Texas-San Antonio, 1 UTSA Circle, San Antonio, TX78249, USA, Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohōkū Place, Hilo, HI 96720, USA
Danielski, Camilla; Institute of Astrophysics of Andalusia
Dupuy, Trent J.; Royal Observatory Edinburgh
Faherty, Jacqueline K.; American Museum of Natural History, New York
Fitzgerald, Michael P.; University of California, Los Angeles
Fortney, Jonathan J.; University of California, Santa Cruz, Department of Astronomy and Astrophysics
Franson, Kyle; University of Texas, Austin, Department of Astronomy
Girard, Julien H.; Space Telescope Science Institute, Baltimore, Maryland
Grady, Carol A.; Eureka Scientific, 2452 Delmer. St., Suite 1, Oakland, CA 96402, USA
Gonzales, Eileen C.; Cornell University, Department of Astronomy/Center for Radiophysics and Space Research
Henning, Thomas; Max-Planck-Institute for Astronomy, Heidelberg
Hines, Dean C.; Space Telescope Science Institute, Baltimore, Maryland
Hoch, Kielan K. W.; University of California, San Diego, Center for Astrophysics and Space Science
Hood, Callie E.; University of California, Santa Cruz, Department of Astronomy and Astrophysics
Howe, Alex R.; NASA Goddard Space Flight Center, Maryland
Janson, Markus; AlbaNova University Center
Kalas, Paul; University of California, Berkeley, Department of Astronomy, SETI Institute, California, Foundation for Research and Technology, Greece
Kennedy, Grant M.; University of Warwick, Department of Physics
Kenworthy, Matthew A.; Leiden Observatory
Kervella, Pierre; Observatoire de Paris, Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique
Kuzuhara, Masayuki; Astrobiology Center, Japan
Lagrange, Anne-Marie; Observatoire de Paris, Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique
Lagage, Pierre-Olivier; CEA Saclay, Service d'Astrophysique
Lawson, Kellen; NASA Goddard Space Flight Center, Maryland
Lew, Ben W. P.; NASA Ames Research Center
Liu, Michael C.; University of Hawaii, Manoa, Institute for Astronomy
Liu, Pengyu; Scottish Universities Physics Alliance, University of Edinburgh, UK
Llop-Sayson, Jorge; California Institute of Technology, Division of Physics, Mathematics and Astronomy
Lloyd, James P.; Cornell University, Department of Astronomy/Center for Radiophysics and Space Research
Macintosh, Bruce; Kavli Institute for Particle Astrophysics and Cosmology, California
Marino, Sebastian; University of Cambridge, UK, University of Cambridge, Institute of Astronomy
Marley, Mark S.; Dept. of Planetary Sciences, Lunar &, Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA
Marois, Christian; National Research Council, Canada
Martinez, Raquel A.; University of California, Irvine, Department of Physics and Astronomy
Matthews, Brenda C.; Herzberg Institute for Astronomy and Astrophysics
Matthews, Elisabeth C.; University of Geneva, Astronomical Observatory
Mawet, Dimitri; California Institute of Technology, Division of Physics, Mathematics and Astronomy, Jet Propulsion Laboratory
Mazoyer, Johan; Observatoire de Paris, Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique
McElwain, Michael W.; NASA Goddard Space Flight Center, Maryland
Metchev, Stanimir; University of Western Ontario, Department of Physics and Astronomy
Meyer, Michael R.; University of Michigan, Department of Astronomy
Miles, Brittany E.; University of California, Santa Cruz, Department of Astronomy and Astrophysics
Millar-Blanchaer, Maxwell A.; University of California, Santa Barbara, Department of Physics and Astronomy
Molliere, Paul; Max-Planck-Institute for Astronomy, Heidelberg
Moran, Sarah E.; Dept. of Planetary Sciences, Lunar &, Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA
Morley, Caroline V.; University of Texas, Austin, Department of Astronomy
Mukherjee, Sagnick; University of California, Santa Cruz, Department of Astronomy and Astrophysics
Palma-Bifani, Paulina; Laboratoire J.-L. Lagrange, Université Cote d'Azur, CNRS, Observatoire de la Cote d'Azur, 06304 Nice, France
Pantin, Eric; Institut de Recherche sur les Lois Fondamentales de l'Universe
Patapis, Polychronis; ETH Zurich, Department of Physics
Petrus, Simon; Valparaiso University, Department of Physics and Astronomy, -
Pueyo, Laurent; Space Telescope Science Institute, Baltimore, Maryland
Quanz, Sascha P.; ETH Zurich, Department of Physics
Quirrenbach, Andreas; University of Heidelberg, Astronomical Observatory
Rebollido, Isabel; Space Telescope Science Institute, Baltimore, Maryland
Adams Redai, Jea; Harvard Smithsonian Center for Astrophysics
Ren, Bin B.; Institute de Planetologie et d'Astrophysique de Grenoble
Rickman, Emily; Space Telescope Science Institute, ESA Office, Baltimore, Maryland
Samland, Matthias; Max-Planck-Institute for Astronomy, Heidelberg
Schlieder, Joshua E.; NASA Goddard Space Flight Center, Maryland
Schneider, Glenn; University of Arizona, Department of Astronomy and Steward Observatory
Stapelfeldt, Karl R.; Jet Propulsion Laboratory
Tamura, Motohide; University of Tokyo, Japan
Tan, Xianyu; Shanghai Jiaotong University, China
Uyama, Taichi; Infrared Processing and Analysis Center
Vasist, Malavika Vijayendra ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Vos, Johanna M.; University of Dublin Trinity College, Ireland, American Museum of Natural History, New York
Wagner, Kevin; University of Arizona, Department of Astronomy and Steward Observatory
Wang, Jason J.; California Institute of Technology, Division of Physics, Mathematics and Astronomy, Northwestern University, Department of Physics and Astronomy
Ward-Duong, Kimberly; Smith College, Massachusetts
Whiteford, Niall; American Museum of Natural History, New York
Wolff, Schuyler G.; University of Arizona, Department of Astronomy and Steward Observatory
Worthen, Kadin; Johns Hopkins University, Department of Physics and Astronomy
Wyatt, Mark C.; University of Cambridge, Institute of Astronomy
Ygouf, Marie; Jet Propulsion Laboratory
Zhang, Xi; University of California, Santa Cruz, Department of Astronomy and Astrophysics
Zhang, Keming; University of California, Berkeley, Department of Astronomy
Zhang, Zhoujian; University of California, Santa Cruz, Department of Astronomy and Astrophysics
Zhou, Yifan; University of Texas, Austin, Department of Astronomy
Zurlo, Alice; Instituto de Estudios Astrofísicos, Facultad de Ingeniería y Ciencias,Universidad Diego Portales, Av. Ejército Libertador 441, Santiago, Chile
Sargent, B. A.; Space Telescope Science Institute, Baltimore, Maryland, Johns Hopkins University, Department of Physics and Astronomy
Theissen, Christopher A.; University of California, San Diego, Center for Astrophysics and Space Science
Manjavacas, Elena; Space Telescope Science Institute, ESA Office, Baltimore, Maryland
Lueber, Anna; Ludwig-Maximilians University of Munich, Germany
Kitzmann, Daniel; University of Bern, Switzerland
Sutlieff, Ben J.; Scottish Universities Physics Alliance, University of Edinburgh, UK
Betti, Sarah K.; Space Telescope Science Institute, Baltimore, Maryland
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 μm
