The Valuable Long-period Cluster Cepheid KQ Scorpii and other Calibration Candidates
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910574471806976 |
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| author | Majaess, Daniel Turner, David G. Minniti, Dante Alonso-Garcia, Javier Saito, Roberto K. |
| author_facet | Majaess, Daniel Turner, David G. Minniti, Dante Alonso-Garcia, Javier Saito, Roberto K. |
| contents | The classical Cepheid KQ Sco is a valuable anchor for the distance scale because of its long pulsation period ($28^{\rm d}.7$) and evidence implying membership in the open cluster UBC 1558. Analyses tied to Gaia DR3 astrometry, photometry, spectroscopy, radial velocities, and 2MASS-VVV photometry indicate a common distance of $2.15\pm0.15$ kpc (\citealt{lin21} DR3 corrections applied). Additional cluster Cepheid candidates requiring follow-up are identified, and it's suggested that a team of international researchers could maintain a cluster Cepheid database to guide the broader community to cases where consensus exists. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2408_03371 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The Valuable Long-period Cluster Cepheid KQ Scorpii and other Calibration Candidates Majaess, Daniel Turner, David G. Minniti, Dante Alonso-Garcia, Javier Saito, Roberto K. Solar and Stellar Astrophysics Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies The classical Cepheid KQ Sco is a valuable anchor for the distance scale because of its long pulsation period ($28^{\rm d}.7$) and evidence implying membership in the open cluster UBC 1558. Analyses tied to Gaia DR3 astrometry, photometry, spectroscopy, radial velocities, and 2MASS-VVV photometry indicate a common distance of $2.15\pm0.15$ kpc (\citealt{lin21} DR3 corrections applied). Additional cluster Cepheid candidates requiring follow-up are identified, and it's suggested that a team of international researchers could maintain a cluster Cepheid database to guide the broader community to cases where consensus exists. |
| title | The Valuable Long-period Cluster Cepheid KQ Scorpii and other Calibration Candidates |
| topic | Solar and Stellar Astrophysics Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2408.03371 |