The Astrophysical Journal Letters (Jan 2023)
TOI-1670 c, a 40 day Orbital Period Warm Jupiter in a Compact System, Is Well Aligned
- Jack Lubin,
- Xian-Yu Wang,
- Malena Rice,
- Jiayin Dong,
- Songhu Wang,
- Brandon T. Radzom,
- Paul Robertson,
- Gudmundur Stefansson,
- Jaime A. Alvarado-Montes,
- Corey Beard,
- Chad F. Bender,
- Arvind F. Gupta,
- Samuel Halverson,
- Shubham Kanodia,
- Dan Li,
- Andrea S. J. Lin,
- Sarah E. Logsdon,
- Emily Lubar,
- Suvrath Mahadevan,
- Joe P. Ninan,
- Jayadev Rajagopal,
- Arpita Roy,
- Christian Schwab,
- Jason T. Wright
Affiliations
- Jack Lubin
- ORCiD
- Department of Physics & Astronomy, The University of California Irvine , Irvine, CA 92697, USA
- Xian-Yu Wang
- ORCiD
- Department of Astronomy, Indiana University , Bloomington, IN 47405, USA
- Malena Rice
- ORCiD
- Department of Astronomy, Yale University , New Haven, CT 06511, USA
- Jiayin Dong
- ORCiD
- Center for Computational Astrophysics, Flatiron Institute , 162 Fifth Avenue, New York, NY 10010, USA
- Songhu Wang
- ORCiD
- Department of Astronomy, Indiana University , Bloomington, IN 47405, USA
- Brandon T. Radzom
- ORCiD
- Department of Astronomy, Indiana University , Bloomington, IN 47405, USA
- Paul Robertson
- ORCiD
- Department of Physics & Astronomy, The University of California Irvine , Irvine, CA 92697, USA
- Gudmundur Stefansson
- ORCiD
- Department of Astrophysical Sciences, Princeton University , 4 Ivy Lane, Princeton, NJ 08540, USA
- Jaime A. Alvarado-Montes
- ORCiD
- School of Mathematical and Physical Sciences, Macquarie University , Balaclava Road, North Ryde, NSW 2109, Australia; The Macquarie University Astrophysics and Space Technologies Research Centre, Macquarie University , Balaclava Road, North Ryde, NSW 2109, Australia
- Corey Beard
- ORCiD
- Department of Physics & Astronomy, The University of California Irvine , Irvine, CA 92697, USA
- Chad F. Bender
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Arvind F. Gupta
- ORCiD
- Department of Astronomy & Astrophysics, 525 Davey Laboratory, The Pennsylvania State University , University Park, PA 16802, USA; Center for Exoplanets and Habitable Worlds, 525 Davey Laboratory, The Pennsylvania State University , University Park, PA 16802, USA
- Samuel Halverson
- ORCiD
- Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USA
- Shubham Kanodia
- ORCiD
- Earth and Planets Laboratory, Carnegie Institution for Science , 5241 Broad Branch Road, NW, Washington, DC 20015, USA
- Dan Li
- ORCiD
- NSF’s National Optical-Infrared Astronomy Research Laboratory , 950 N. Cherry Avenue, Tucson, AZ 85719, USA
- Andrea S. J. Lin
- ORCiD
- Department of Astronomy & Astrophysics, 525 Davey Laboratory, The Pennsylvania State University , University Park, PA 16802, USA; Center for Exoplanets and Habitable Worlds, 525 Davey Laboratory, The Pennsylvania State University , University Park, PA 16802, USA
- Sarah E. Logsdon
- ORCiD
- NSF’s National Optical-Infrared Astronomy Research Laboratory , 950 N. Cherry Avenue, Tucson, AZ 85719, USA
- Emily Lubar
- ORCiD
- McDonald Observatory and Department of Astronomy, The University of Texas at Austin , 2515 Speedway, Austin, TX 78712, USA
- Suvrath Mahadevan
- ORCiD
- Department of Astronomy & Astrophysics, 525 Davey Laboratory, The Pennsylvania State University , University Park, PA 16802, USA; Center for Exoplanets and Habitable Worlds, 525 Davey Laboratory, The Pennsylvania State University , University Park, PA 16802, USA; ETH Zurich, Institute for Particle Physics & Astrophysics , Zurich, Switzerland
- Joe P. Ninan
- ORCiD
- Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research , Homi Bhabha Road, Colaba, Mumbai 400005, India
- Jayadev Rajagopal
- ORCiD
- NSF’s National Optical-Infrared Astronomy Research Laboratory , 950 N. Cherry Avenue, Tucson, AZ 85719, USA
- Arpita Roy
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA; Department of Physics and Astronomy, Johns Hopkins University , 3400 N Charles St., Baltimore, MD 21218, USA
- Christian Schwab
- ORCiD
- School of Mathematical and Physical Sciences, Macquarie University , Balaclava Road, North Ryde, NSW 2109, Australia
- Jason T. Wright
- ORCiD
- Department of Astronomy & Astrophysics, 525 Davey Laboratory, The Pennsylvania State University , University Park, PA 16802, USA; Center for Exoplanets and Habitable Worlds, 525 Davey Laboratory, The Pennsylvania State University , University Park, PA 16802, USA; Penn State Extraterrestrial Intelligence Center, 525 Davey Laboratory, The Pennsylvania State University , University Park, PA 16802, USA
- DOI
- https://doi.org/10.3847/2041-8213/ad0fea
- Journal volume & issue
-
Vol. 959,
no. 1
p. L5
Abstract
We report the measurement of the sky-projected obliquity angle λ of the warm Jovian exoplanet TOI-1670 c via the Rossiter–McLaughlin effect. We observed the transit window during UT 2023 April 20 for 7 continuous hours with NEID on the 3.5 m WIYN Telescope at Kitt Peak National Observatory. TOI-1670 hosts a sub-Neptune ( P ∼ 11 days; planet b) interior to the warm Jovian ( P ∼ 40 days; planet c), which presents an opportunity to investigate the dynamics of a warm Jupiter with an inner companion. Additionally, TOI-1670 c is now among the longest-period planets to date to have its sky-projected obliquity angle measured. We find planet c is well aligned to the host star, with λ = − 0.°3 ± 2.°2. TOI-1670 c joins a growing census of aligned warm Jupiters around single stars and aligned planets in multiplanet systems.
Keywords
