Characterization of Low-mass Companions to Kepler Objects of Interest Observed with APOGEE-N Article Swipe
Caleb I. Cañas
,
Chad F. Bender
,
Suvrath Mahadevan
,
Dmitry Bizyaev
,
Nathan De Lee
,
Scott W. Fleming
,
Fred Hearty
,
Steven R. Majewski
,
Christian Nıtschelm
,
Donald P. Schneider
,
Javier Serna
,
Keivan G. Stassun
,
Guđmundur Stefánsson
,
Guy S. Stringfellow
,
John C. Wilson
·
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.3847/1538-4365/acbcbe
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.3847/1538-4365/acbcbe
We report the characterization of 28 low-mass (0.02 M ⊙ ≤ M 2 ≤ 0.25 M ⊙ ) companions to Kepler objects of interest (KOIs), eight of which were previously designated confirmed planets. These objects were detected as transiting companions to Sunlike stars (G and F dwarfs) by the Kepler mission and are confirmed as single-lined spectroscopic binaries in the current work using the northern multiplexed Apache Point Observatory Galactic Evolution Experiment near-infrared spectrograph (APOGEE-N) as part of the third and fourth Sloan Digital Sky Surveys. We have observed hundreds of KOIs using APOGEE-N and collected a total of 43,175 spectra with a median of 19 visits and a median baseline of ∼1.9 yr per target. We jointly model the Kepler photometry and APOGEE-N radial velocities to derive fundamental parameters for this subset of 28 transiting companions. The radii for most of these low-mass companions are overinflated (by ∼10%) when compared to theoretical models. Tidally locked M dwarfs on short-period orbits show the largest amount of inflation, but inflation is also evident for companions that are well separated from the host star. We demonstrate that APOGEE-N data provide reliable radial velocities when compared to precise high-resolution spectrographs that enable detailed characterization of individual systems and the inference of orbital elements for faint ( H > 12) KOIs. The data from the entire APOGEE-KOI program are public and present an opportunity to characterize an extensive subset of the binary population observed by Kepler.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3847/1538-4365/acbcbe
- https://iopscience.iop.org/article/10.3847/1538-4365/acbcbe/pdf
- OA Status
- gold
- Cited By
- 2
- References
- 279
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4362558492
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Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4362558492Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3847/1538-4365/acbcbeDigital Object Identifier
- Title
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Characterization of Low-mass Companions to Kepler Objects of Interest Observed with APOGEE-NWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2023Year of publication
- Publication date
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2023-04-01Full publication date if available
- Authors
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Caleb I. Cañas, Chad F. Bender, Suvrath Mahadevan, Dmitry Bizyaev, Nathan De Lee, Scott W. Fleming, Fred Hearty, Steven R. Majewski, Christian Nıtschelm, Donald P. Schneider, Javier Serna, Keivan G. Stassun, Guđmundur Stefánsson, Guy S. Stringfellow, John C. WilsonList of authors in order
- Landing page
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https://doi.org/10.3847/1538-4365/acbcbePublisher landing page
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https://iopscience.iop.org/article/10.3847/1538-4365/acbcbe/pdfDirect link to full text PDF
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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https://iopscience.iop.org/article/10.3847/1538-4365/acbcbe/pdfDirect OA link when available
- Concepts
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Physics, Astrophysics, Planet, Radial velocity, Astronomy, Photometry (optics), Population, Orbital period, Exoplanet, Stars, Demography, SociologyTop concepts (fields/topics) attached by OpenAlex
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2Total citation count in OpenAlex
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2024: 1, 2023: 1Per-year citation counts (last 5 years)
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279Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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