| Title: |
BEBOP III. Observations and an independent mass measurement of Kepler-16 (AB) b - the first circumbinary planet detected with radial velocities |
| Authors: |
Triaud, Amaury H. M. J.; Standing, Matthew R.; Heidari, Neda; Martin, David V.; Boisse, Isabelle; Santerne, Alexandre; Correia, Alexandre C. M.; Acuña, Lorena; Battley, Matthew; Bonfils, Xavier; Carmona, Andrés; Collier Cameron, Andrew; Cortés-Zuleta, Pía; Dransfield, Georgina; Dalal, Shweta; Deleuil, Magali; Delfosse, Xavier; Faria, João; Forveille, Thierry; Hara, Nathan C.; Hébrard, Guillaume; Hoyer, Sergio; Kiefer, Flavien; Kunovac, Vedad; Maxted, Pierre F. L.; Martioli, Eder; Miller, Nicola J.; Nelson, Richard P.; Poveda, Mathilde; Rein, Hanno; Sairam, Lalitha; Udry, Stéphane; Willett, Emma |
| Contributors: |
Midlands Ultracold Atom Research Centre; School of Physics and Astronomy Nottingham; University of Nottingham, UK (UON)-University of Nottingham, UK (UON); Laboratoire d'Astrophysique de Marseille (LAM); Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS); Shahid Beheshti University; Joseph Louis LAGRANGE (LAGRANGE); Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur; Université Côte d'Azur (UniCA)-Université Côte d'Azur (UniCA)-Centre National de la Recherche Scientifique (CNRS); Department of Astronomy Columbus; The Ohio State University Columbus (OSU); Centro de Física da Universidade de Coimbra (CFisUC); Universidade de Coimbra = University of Coimbra Portugal (UC); Department of Physics Coventry; University of Warwick Coventry; Institut de Planétologie et d'Astrophysique de Grenoble (IPAG); Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (Fédération OSUG)-Université Grenoble Alpes (UGA); SUPA School of Physics and Astronomy University of St Andrews; University of St Andrews Scotland -Scottish Universities Physics Alliance (SUPA); Institut d'Astrophysique de Paris (IAP); Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); Centro de Astrofísica da Universidade do Porto (CAUP); Universidade do Porto = University of Porto; Observatoire Astronomique de l'Université de Genève (ObsGE); Université de Genève = University of Geneva (UNIGE); Astrophysics Group; Blackett Laboratory; Imperial College London-Imperial College London; Astronomy Unit London (AU); Queen Mary University of London (QMUL); Maison de la Simulation (MDLS); Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut National de Recherche en Informatique et en Automatique (Inria)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS); Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)); Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité); Department of Physical and Environmental Sciences Toronto; University of Toronto at Scarborough |
| Source: |
ISSN: 0035-8711. |
| Publisher Information: |
CCSD; Oxford University Press (OUP): Policy P - Oxford Open Option A |
| Publication Year: |
2022 |
| Collection: |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
| Subject Terms: |
Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar Astrophysics; binaries: spectroscopic; binaries: eclipsing; planets and satellites: individual: Kepler-16; planets and satellites: detection; techniques: radial velocities; [SDU]Sciences of the Universe [physics] |
| Description: |
International audience ; The radial velocity method is amongst the most robust and most established means of detecting exoplanets. Yet, it has so far failed to detect circumbinary planets despite their relatively high occurrence rates. Here, we report velocimetric measurements of Kepler-16A, obtained with the SOPHIE spectrograph, at the Observatoire de Haute-Provence's 193cm telescope, collected during the BEBOP survey for circumbinary planets. Our measurements mark the first radial velocity detection of a circumbinary planet, independently determining the mass of Kepler-16 (AB) b to be $0.313 \pm 0.039\, {\rm M}_{\rm Jup}$, a value in agreement with eclipse timing variations. Our observations demonstrate the capability to achieve photon-noise precision and accuracy on single-lined binaries, with our final precision reaching $\rm 1.5~m\, s^{-1}$ on the binary and planetary signals. Our analysis paves the way for more circumbinary planet detections using radial velocities which will increase the relatively small sample of currently known systems to statistically relevant numbers, using a method that also provides weaker detection biases. Our data also contain a long-term radial velocity signal, which we associate with the magnetic cycle of the primary star. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/arxiv/2112.06584; ARXIV: 2112.06584; BIBCODE: 2022MNRAS.511.3561T |
| DOI: |
10.1093/mnras/stab3712 |
| Availability: |
https://insu.hal.science/insu-03667434; https://insu.hal.science/insu-03667434v1/document; https://insu.hal.science/insu-03667434v1/file/TrStHe22.pdf; https://doi.org/10.1093/mnras/stab3712 |
| Rights: |
info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.DB20BC3A |
| Database: |
BASE |