The NEID Earth Twin Survey. II. Dynamical Masses in Seven High-acceleration Star Systems
We present a set of companion dynamical masses and orbital parameters of seven star systems from the NEID Earth Twin Survey with significant absolute astrometric accelerations between the epochs of Hipparcos and Gaia. These include four binary star systems (HD 68017 AB, 61 Cygni AB, HD 24496 AB, and...
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| author | Mark R. Giovinazzi Cullen H. Blake Paul Robertson Andrea S. J. Lin Arvind F. Gupta Suvrath Mahadevan Jason T. Wright Daniella Bardalez Gagliuffi Jiayin Dong Rachel B. Fernandes Evan Fitzmaurice Samuel Halverson Shubham Kanodia Sarah E. Logsdon Jacob K. Luhn Michael W. McElwain Andy Monson Joe P. Ninan Jayadev Rajagopal Arpita Roy Christian Schwab Gudmundur Stefánsson Ryan Terrien Jason D. Eastman Jonathan Horner Peter Plavchan Sharon X. Wang Maurice L. Wilson Robert A. Wittenmyer |
| author_facet | Mark R. Giovinazzi Cullen H. Blake Paul Robertson Andrea S. J. Lin Arvind F. Gupta Suvrath Mahadevan Jason T. Wright Daniella Bardalez Gagliuffi Jiayin Dong Rachel B. Fernandes Evan Fitzmaurice Samuel Halverson Shubham Kanodia Sarah E. Logsdon Jacob K. Luhn Michael W. McElwain Andy Monson Joe P. Ninan Jayadev Rajagopal Arpita Roy Christian Schwab Gudmundur Stefánsson Ryan Terrien Jason D. Eastman Jonathan Horner Peter Plavchan Sharon X. Wang Maurice L. Wilson Robert A. Wittenmyer |
| author_sort | Mark R. Giovinazzi |
| collection | DOAJ |
| description | We present a set of companion dynamical masses and orbital parameters of seven star systems from the NEID Earth Twin Survey with significant absolute astrometric accelerations between the epochs of Hipparcos and Gaia. These include four binary star systems (HD 68017 AB, 61 Cygni AB, HD 24496 AB, and HD 4614 AB) and three planetary systems (HD 217107, HD 190360, and HD 154345). Our analyses incorporate a long baseline of RVs that includes over 1100 previously unpublished measurements from NEID and MINERVA, extending the overall RV baseline for each system by ≈2.5 yr, as well as relative astrometry for the stellar binary systems where the positions of both stars are well measured. In each case, the combination of astrometry and RVs constrains the three-dimensional acceleration of the host star and enables precise dynamical masses. We publish true masses for three planets whose measurements were previously entangled with their inclinations, four stellar masses with ≲1% relative precision, and improved orbital solutions for all seven systems, including the first for HD 24496 AB. These solutions not only agree with previous estimates, but also improve their fidelity. We also explore each system for evidence of periodic signals in the residuals around our best-fit models, and discuss the potential that the three planetary systems have for being directly imaged. With dynamical mass estimates and reliable orbit ephemerides, these seven star systems represent promising benchmarks for future stellar and planetary characterization efforts, and are amenable for further improvement with the upcoming release of Gaia epoch astrometry. |
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| institution | Kabale University |
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| language | English |
| publishDate | 2025-01-01 |
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| series | The Astronomical Journal |
| spelling | doaj-art-e5981945c04549f39d3f1e15ed3491292025-08-20T03:27:47ZengIOP PublishingThe Astronomical Journal1538-38812025-01-0117015210.3847/1538-3881/add922The NEID Earth Twin Survey. II. Dynamical Masses in Seven High-acceleration Star SystemsMark R. Giovinazzi0https://orcid.org/0000-0002-0078-5288Cullen H. Blake1https://orcid.org/0000-0002-6096-1749Paul Robertson2https://orcid.org/0000-0003-0149-9678Andrea S. J. Lin3https://orcid.org/0000-0002-9082-6337Arvind F. Gupta4https://orcid.org/0000-0002-5463-9980Suvrath Mahadevan5https://orcid.org/0000-0001-9596-7983Jason T. Wright6https://orcid.org/0000-0001-6160-5888Daniella Bardalez Gagliuffi7https://orcid.org/0000-0001-8170-7072Jiayin Dong8https://orcid.org/0000-0002-3610-6953Rachel B. Fernandes9https://orcid.org/0000-0002-3853-7327Evan Fitzmaurice10https://orcid.org/0000-0003-0199-9699Samuel Halverson11https://orcid.org/0000-0003-1312-9391Shubham Kanodia12https://orcid.org/0000-0001-8401-4300Sarah E. Logsdon13https://orcid.org/0000-0002-9632-9382Jacob K. Luhn14https://orcid.org/0000-0002-4927-9925Michael W. McElwain15https://orcid.org/0000-0003-0241-8956Andy Monson16https://orcid.org/0000-0002-0048-2586Joe P. Ninan17https://orcid.org/0000-0001-8720-5612Jayadev Rajagopal18https://orcid.org/0000-0002-2488-7123Arpita Roy19https://orcid.org/0000-0001-8127-5775Christian Schwab20https://orcid.org/0000-0002-4046-987XGudmundur Stefánsson21https://orcid.org/0000-0001-7409-5688Ryan Terrien22https://orcid.org/0000-0002-4788-8858Jason D. Eastman23https://orcid.org/0000-0003-3773-5142Jonathan Horner24https://orcid.org/0000-0002-1160-7970Peter Plavchan25https://orcid.org/0000-0002-8864-1667Sharon X. Wang26https://orcid.org/0000-0002-6937-9034Maurice L. Wilson27https://orcid.org/0000-0003-1928-0578Robert A. Wittenmyer28https://orcid.org/0000-0001-9957-9304Department of Physics and Astronomy, University of Pennsylvania , 209 South 33rd Street, Philadelphia, PA 19104, USA; Department of Physics & Astronomy , Amherst College, 25 East Drive, Amherst, MA 01002, USADepartment of Physics and Astronomy, University of Pennsylvania , 209 South 33rd Street, Philadelphia, PA 19104, USADepartment of Physics & Astronomy, The University of California , Irvine, CA 92697, USADepartment 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, USAU.S. National Science Foundation National Optical-Infrared Astronomy Research Laboratory , 950 N. Cherry Avenue, Tucson, AZ 85719, USADepartment 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, USADepartment 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, USADepartment of Physics & Astronomy , Amherst College, 25 East Drive, Amherst, MA 01002, USACenter for Computational Astrophysics , Flatiron Institute, 162 Fifth Avenue, New York, NY 10010, USA; Department of Astronomy, University of Illinois at Urbana-Champaign , Urbana, IL 61801, USADepartment 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, USADepartment 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; Institute for Computational and Data Sciences, 224B Computer Building, Penn State University , University Park, PA 16802, USAJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USAEarth and Planets Laboratory , Carnegie Science, 5241 Broad Branch Road, NW, Washington, DC 20015, USAU.S. National Science Foundation National Optical-Infrared Astronomy Research Laboratory , 950 N. Cherry Avenue, Tucson, AZ 85719, USANASA JPL , 4800 Oak Grove Drive, Pasadena, CA 91109, USAExoplanets and Stellar Astrophysics Laboratory, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USASteward Observatory, The University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USADepartment of Astronomy and Astrophysics, Tata Institute of Fundamental Research , Homi Bhabha Road, Colaba, Mumbai 400005, IndiaU.S. National Science Foundation National Optical-Infrared Astronomy Research Laboratory , 950 N. Cherry Avenue, Tucson, AZ 85719, USAAstrophysics & Space Institute , Schmidt Sciences, New York, NY 10011, USASchool of Mathematical and Physical Sciences, Macquarie University , Balaclava Road, North Ryde, NSW 2109, AustraliaAnton Pannekoek Institute for Astronomy , 904 Science Park, University of Amsterdam, Amsterdam, 1098 XH, The NetherlandsCarleton College , One North College Street, Northfield, MN 55057, USACenter for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USACentre for Astrophysics, University of Southern Queensland , West Street, Toowoomba, QLD 4350, AustraliaGeorge Mason University , 4400 University Drive, Fairfax, VA 22030, USADepartment of Astronomy, Tsinghua University , Beijing 100084, People’s Republic of ChinaHigh Altitude Observatory, National Center for Atmospheric Research , 3080 Center Green Drive, Boulder, CO 80301, USACentre for Astrophysics, University of Southern Queensland , West Street, Toowoomba, QLD 4350, AustraliaWe present a set of companion dynamical masses and orbital parameters of seven star systems from the NEID Earth Twin Survey with significant absolute astrometric accelerations between the epochs of Hipparcos and Gaia. These include four binary star systems (HD 68017 AB, 61 Cygni AB, HD 24496 AB, and HD 4614 AB) and three planetary systems (HD 217107, HD 190360, and HD 154345). Our analyses incorporate a long baseline of RVs that includes over 1100 previously unpublished measurements from NEID and MINERVA, extending the overall RV baseline for each system by ≈2.5 yr, as well as relative astrometry for the stellar binary systems where the positions of both stars are well measured. In each case, the combination of astrometry and RVs constrains the three-dimensional acceleration of the host star and enables precise dynamical masses. We publish true masses for three planets whose measurements were previously entangled with their inclinations, four stellar masses with ≲1% relative precision, and improved orbital solutions for all seven systems, including the first for HD 24496 AB. These solutions not only agree with previous estimates, but also improve their fidelity. We also explore each system for evidence of periodic signals in the residuals around our best-fit models, and discuss the potential that the three planetary systems have for being directly imaged. With dynamical mass estimates and reliable orbit ephemerides, these seven star systems represent promising benchmarks for future stellar and planetary characterization efforts, and are amenable for further improvement with the upcoming release of Gaia epoch astrometry.https://doi.org/10.3847/1538-3881/add922Binary starsExoplanet astronomyAstrometryRadial velocity |
| spellingShingle | Mark R. Giovinazzi Cullen H. Blake Paul Robertson Andrea S. J. Lin Arvind F. Gupta Suvrath Mahadevan Jason T. Wright Daniella Bardalez Gagliuffi Jiayin Dong Rachel B. Fernandes Evan Fitzmaurice Samuel Halverson Shubham Kanodia Sarah E. Logsdon Jacob K. Luhn Michael W. McElwain Andy Monson Joe P. Ninan Jayadev Rajagopal Arpita Roy Christian Schwab Gudmundur Stefánsson Ryan Terrien Jason D. Eastman Jonathan Horner Peter Plavchan Sharon X. Wang Maurice L. Wilson Robert A. Wittenmyer The NEID Earth Twin Survey. II. Dynamical Masses in Seven High-acceleration Star Systems The Astronomical Journal Binary stars Exoplanet astronomy Astrometry Radial velocity |
| title | The NEID Earth Twin Survey. II. Dynamical Masses in Seven High-acceleration Star Systems |
| title_full | The NEID Earth Twin Survey. II. Dynamical Masses in Seven High-acceleration Star Systems |
| title_fullStr | The NEID Earth Twin Survey. II. Dynamical Masses in Seven High-acceleration Star Systems |
| title_full_unstemmed | The NEID Earth Twin Survey. II. Dynamical Masses in Seven High-acceleration Star Systems |
| title_short | The NEID Earth Twin Survey. II. Dynamical Masses in Seven High-acceleration Star Systems |
| title_sort | neid earth twin survey ii dynamical masses in seven high acceleration star systems |
| topic | Binary stars Exoplanet astronomy Astrometry Radial velocity |
| url | https://doi.org/10.3847/1538-3881/add922 |
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