JWST/NIRCam Coronagraphic Search for Hidden Planets in the HD 163296 Protoplanetary Disk

HD 163296 is a Herbig Ae/Be star with multiple signposts of ongoing planet formation on its disk, such as prominent rings and gaps, as well as kinematic features as identified by previous Atacama Large Millimeter/submillimeter Array (ALMA) observations. We carried out JWST/NIRCam coronagraphic imagi...

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Main Authors: Taichi Uyama, Luca Ricci, Marie Ygouf, Sean Andrews, Sara Gallagher, Jane Huang, Andrea Isella, Dimitri Mawet, Laura M. Pérez, Massimo Robberto, Garreth Ruane, Shangjia Zhang, Zhaohuan Zhu
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Language:English
Published: IOP Publishing 2025-01-01
Series:The Astronomical Journal
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Online Access:https://doi.org/10.3847/1538-3881/adc601
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author Taichi Uyama
Luca Ricci
Marie Ygouf
Sean Andrews
Sara Gallagher
Jane Huang
Andrea Isella
Dimitri Mawet
Laura M. Pérez
Massimo Robberto
Garreth Ruane
Shangjia Zhang
Zhaohuan Zhu
author_facet Taichi Uyama
Luca Ricci
Marie Ygouf
Sean Andrews
Sara Gallagher
Jane Huang
Andrea Isella
Dimitri Mawet
Laura M. Pérez
Massimo Robberto
Garreth Ruane
Shangjia Zhang
Zhaohuan Zhu
author_sort Taichi Uyama
collection DOAJ
description HD 163296 is a Herbig Ae/Be star with multiple signposts of ongoing planet formation on its disk, such as prominent rings and gaps, as well as kinematic features as identified by previous Atacama Large Millimeter/submillimeter Array (ALMA) observations. We carried out JWST/NIRCam coronagraphic imaging using the F410M and F200W NIRCam filters, with the goal of detecting the emission from the putative young planets in this system. Our F410M observations did not detect the putative planets at the predicted locations of the ALMA velocity kinks, but they did detect a point-like source candidate at a separation of $\approx 0\mathop{.}\limits^{^{\prime\prime} }75$ and a position angle of $\approx 231\mathop{.}\limits^{^\circ }4$ that is unlikely a background star because of the measured flux in the F410M filter and the detection limit in the F200W filter. These data achieved unprecedented contrast levels at ∼4 μ m at stellocentric separations $\rho \gtrsim 0\mathop{.}\limits^{^{\prime\prime} }8$ . This allowed us to derive stringent constraints at the outer velocity kink (ΔF410M = 15.2 mag) on the mass of the putative planet with or without a circumplanetary disk, and considering different possible initial entropies for the planet.
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spelling doaj-art-4f732cd5d4a648a78ecf320ab7da07bb2025-08-20T02:13:55ZengIOP PublishingThe Astronomical Journal1538-38812025-01-01169628710.3847/1538-3881/adc601JWST/NIRCam Coronagraphic Search for Hidden Planets in the HD 163296 Protoplanetary DiskTaichi Uyama0https://orcid.org/0000-0002-6879-3030Luca Ricci1https://orcid.org/0000-0001-8123-2943Marie Ygouf2https://orcid.org/0000-0001-7591-2731Sean Andrews3https://orcid.org/0000-0003-2253-2270Sara Gallagher4Jane Huang5https://orcid.org/0000-0001-6947-6072Andrea Isella6https://orcid.org/0000-0001-8061-2207Dimitri Mawet7https://orcid.org/0000-0002-8895-4735Laura M. Pérez8https://orcid.org/0000-0002-1199-9564Massimo Robberto9https://orcid.org/0000-0002-9573-3199Garreth Ruane10https://orcid.org/0000-0003-4769-1665Shangjia Zhang11https://orcid.org/0000-0002-8537-9114Zhaohuan Zhu12https://orcid.org/0000-0003-3616-6822Department of Physics and Astronomy, California State University Northridge , 18111 Nordhoff Street, Northridge, CA 91330, USA ; luca.ricci@csun.edu; Astrobiology Center , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, JapanDepartment of Physics and Astronomy, California State University Northridge , 18111 Nordhoff Street, Northridge, CA 91330, USA ; luca.ricci@csun.eduJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USACenter for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USADepartment of Physics and Astronomy, California State University Northridge , 18111 Nordhoff Street, Northridge, CA 91330, USA ; luca.ricci@csun.eduDepartment of Astronomy, Columbia University , 538 W. 120th Street, Pupin Hall, New York, NY 10027, USADepartment of Physics and Astronomy, Rice University , 6100 Main Street, Houston, TX 77005, USA; Rice Space Institute, Rice University , 6100 Main Street, Houston, TX 77005, USAJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USA; Department of Astronomy, California Institute of Technology , 1200 E. California Boulevard, Pasadena, CA 91125, USADepartamento de Astronomía, Universidad de Chile , Camino El Observatorio 1515, Las Condes, Santiago, ChileSpace Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA; Department of Physics & Astronomy, Johns Hopkins University , 3400 N. Charles Street, Baltimore, MD 21218, USAJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USADepartment of Astronomy, Columbia University , 538 W. 120th Street, Pupin Hall, New York, NY 10027, USA; Department of Physics and Astronomy, University of Nevada , Las Vegas, 4505 S. Maryland Parkway, Las Vegas, NV 89154, USA; Nevada Center for Astrophysics, University of Nevada , Las Vegas, Las Vegas, NV 89154, USADepartment of Physics and Astronomy, University of Nevada , Las Vegas, 4505 S. Maryland Parkway, Las Vegas, NV 89154, USA; Nevada Center for Astrophysics, University of Nevada , Las Vegas, Las Vegas, NV 89154, USAHD 163296 is a Herbig Ae/Be star with multiple signposts of ongoing planet formation on its disk, such as prominent rings and gaps, as well as kinematic features as identified by previous Atacama Large Millimeter/submillimeter Array (ALMA) observations. We carried out JWST/NIRCam coronagraphic imaging using the F410M and F200W NIRCam filters, with the goal of detecting the emission from the putative young planets in this system. Our F410M observations did not detect the putative planets at the predicted locations of the ALMA velocity kinks, but they did detect a point-like source candidate at a separation of $\approx 0\mathop{.}\limits^{^{\prime\prime} }75$ and a position angle of $\approx 231\mathop{.}\limits^{^\circ }4$ that is unlikely a background star because of the measured flux in the F410M filter and the detection limit in the F200W filter. These data achieved unprecedented contrast levels at ∼4 μ m at stellocentric separations $\rho \gtrsim 0\mathop{.}\limits^{^{\prime\prime} }8$ . This allowed us to derive stringent constraints at the outer velocity kink (ΔF410M = 15.2 mag) on the mass of the putative planet with or without a circumplanetary disk, and considering different possible initial entropies for the planet.https://doi.org/10.3847/1538-3881/adc601ExoplanetsPlanet formationProtoplanetary disksCoronagraphic imagingJames Webb Space Telescope
spellingShingle Taichi Uyama
Luca Ricci
Marie Ygouf
Sean Andrews
Sara Gallagher
Jane Huang
Andrea Isella
Dimitri Mawet
Laura M. Pérez
Massimo Robberto
Garreth Ruane
Shangjia Zhang
Zhaohuan Zhu
JWST/NIRCam Coronagraphic Search for Hidden Planets in the HD 163296 Protoplanetary Disk
The Astronomical Journal
Exoplanets
Planet formation
Protoplanetary disks
Coronagraphic imaging
James Webb Space Telescope
title JWST/NIRCam Coronagraphic Search for Hidden Planets in the HD 163296 Protoplanetary Disk
title_full JWST/NIRCam Coronagraphic Search for Hidden Planets in the HD 163296 Protoplanetary Disk
title_fullStr JWST/NIRCam Coronagraphic Search for Hidden Planets in the HD 163296 Protoplanetary Disk
title_full_unstemmed JWST/NIRCam Coronagraphic Search for Hidden Planets in the HD 163296 Protoplanetary Disk
title_short JWST/NIRCam Coronagraphic Search for Hidden Planets in the HD 163296 Protoplanetary Disk
title_sort jwst nircam coronagraphic search for hidden planets in the hd 163296 protoplanetary disk
topic Exoplanets
Planet formation
Protoplanetary disks
Coronagraphic imaging
James Webb Space Telescope
url https://doi.org/10.3847/1538-3881/adc601
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