An Imaging Search for Post-main-sequence Planets of Sirius B Article Swipe
Miles Lucas
,
Michael Bottom
,
Garreth Ruane
,
Sam Ragland
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3847/1538-3881/ac4032
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3847/1538-3881/ac4032
We present deep imaging of Sirius B, the closest and brightest white dwarf, to constrain post-main-sequence planetary evolution in the Sirius system. We use Keck/NIRC2 in L ′ band (3.776 μ m) across three epochs in 2020 using the technique of angular differential imaging. Our observations are speckle-limited out to 1 au and background-limited beyond. The 5 σ detection limits from our best-performing epoch are 17–20.4 L ′ absolute magnitude. We consider multiple planetary formation pathways in the context of Sirius B’s evolution to derive mass sensitivity limits, and achieve sub-Jupiter sensitivities at sub-astronomical unit separations, reaching 1.6–2.4 M J at 0.5 au down to a sensitivity of 0.7–1.2 M J at >1 au. Consistent with previous results, we do not detect any companions around Sirius B. Our strong detection limits demonstrate the potential of using high-contrast imaging to characterize nearby white dwarfs.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3847/1538-3881/ac4032
- https://iopscience.iop.org/article/10.3847/1538-3881/ac4032/pdf
- OA Status
- gold
- Cited By
- 3
- References
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All OpenAlex metadata
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https://doi.org/10.3847/1538-3881/ac4032Digital Object Identifier
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An Imaging Search for Post-main-sequence Planets of Sirius BWork title
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-01-21Full publication date if available
- Authors
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Miles Lucas, Michael Bottom, Garreth Ruane, Sam RaglandList of authors in order
- Landing page
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https://doi.org/10.3847/1538-3881/ac4032Publisher landing page
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https://iopscience.iop.org/article/10.3847/1538-3881/ac4032/pdfDirect link to full text PDF
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goldOpen access status per OpenAlex
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https://iopscience.iop.org/article/10.3847/1538-3881/ac4032/pdfDirect OA link when available
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Sirius, Physics, White dwarf, Astrophysics, Planet, Context (archaeology), Astronomy, Main sequence, Stars, Geology, PaleontologyTop concepts (fields/topics) attached by OpenAlex
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3Total citation count in OpenAlex
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2024: 2, 2022: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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| corresponding_author_ids | https://openalex.org/A5103112533 |
| countries_distinct_count | 1 |
| institutions_distinct_count | 4 |
| corresponding_institution_ids | https://openalex.org/I117965899 |
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