TOI-1259Ab -- a gas giant planet with 2.7% deep transits and a bound white dwarf companion
David V. Martin, Kareem El-Badry, Vedad Kunovac Hodžić, Amaury H. M. J. Triaud, Ruth Angus, Jessica Birky, Daniel Foreman-Mackey, Christina Hedges, Benjamin T. … 展开作者
David V. Martin, Kareem El-Badry, Vedad Kunovac Hodžić, Amaury H. M. J. Triaud, Ruth Angus, Jessica Birky, Daniel Foreman-Mackey, Christina Hedges, Benjamin T. Montet, Simon J. Murphy, Alexandre Santerne, Keivan G. Stassun, Alexander P. Stephan, Ji Wang, Paul Benni, Vadim Krushinsky, Nikita Chazov, Nikolay Mishevskiy, Carl Ziegler, Abderahmane Soubkiou, Zouhair Benkhaldoun, Douglas A. Caldwell, Karen Collins, Christopher E. Henze, Natalia M. Guerrero, Jon M. Jenkins, David W. Latham, Adam Levine, Scott McDermott, Susan E. Mullally, George Ricker, Sara Seager, Avi Shporer, Andrew Vanderburg, Roland Vanderspek, Joshua N. Winn
备注:
Accepted to MNRAS. Some structural changes from first arXiv version but no significant changes to results. One figure got a bit prettier
We present TOI-1259Ab, a 1.0 Rjup gas giant planet transiting a 0.71 Rsun K-dwarf on a 3.48 day orbit. The system also contains a bound white dwarf companion TOI-1259B with a projected distance of approximately 1600 AU from the planet host. Transits are observed in nine TESS sector and are 2.7 per cent deep - among the deepest known - making TOI-1259Ab a promising target for atmospheric characterization. Our follow-up radial velocity measurements indicate a variability of semiamplitude K = 71 m/s, implying a planet mass of 0.44 Mjup. By fitting the spectral energy distribution of the white dwarf we derive a total age of 4.08 (+1.21 -0.53) Gyr for the system. The K-dwarf's light curve reveals a rotational variability with a period of 28 days, which implies a gyrochronology age broadly consistent with the white dwarf's total age.
The sensitivity of TESS to transiting planets in TOIs with close-in stellar companions
Bay Area Environmental Research Institute(湾区环境研究所);Mount Holyoke College(蒙特霍利克学院);NASA Exoplanet Science Institute, Caltech/IPAC(NASA系外行星科学研究所,加州理工学院/IPAC);NASA Ames Research Center(NASA艾姆斯研究中心)
SOPHIE and TESS characterization of fourteen TESS Objects of Interest: nine planetary systems and five low-mass stellar companions
Institut d’astrophysique de Paris, UMR 7095 CNRS université pierre et marie curie(巴黎天体物理研究所);Observatoire de Haute-Provence, CNRS, Université d’Aix-Marseille(上普罗旺斯天文台);Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto(葡萄牙大学空间与天体物理研究所);Departamento de Física e Astronomia, Faculdade de Ciências, Universidade do Porto(波尔图大学理学院物理与天文系);Univ. Grenoble Alpes, CNRS, IPAG(格勒诺布尔阿尔卑斯大学);LIRA, Université Paris Cité, Observatoire de Paris, Université PSL, Sorbonne Université, CY Cergy Paris Université, CNRS(巴黎西岱大学/巴黎天文台/巴黎文理研究大学/索邦大学/塞吉-蓬瓦兹大学);Center for Astrophysics | Harvard & Smithsonian(哈佛-史密森天体物理中心);Observatoire de Genève, Université de Genève(日内瓦大学天文台);Sternberg Astronomical Institute of Lomonosov M(罗蒙诺索夫莫斯科国立大学斯滕伯格天文研究所)
Two extremely irradiated volatile-rich sub-Neptunes with companions in the TOI-426 and TOI-1839 systems: Insights into arrival and survival near the lower edge of the Neptunian desert
Observatoire Astronomique de l’Université de Genève(日内瓦大学天文台);University of Warwick(华威大学);University of Oxford(牛津大学);Centre for Exoplanets and Habitability, University of Warwick(华威系外行星与宜居性中心);University of California, Santa Cruz(加州大学圣克鲁兹分校);Universidad Nacional Autónoma de México(墨西哥国立自治大学);European Space Agency (ESA)(欧洲空间局);Universidade do Porto(波尔图大学);Keele University(基尔大学);NASA Ames Research Center(美国宇航局艾姆斯研究中心);NASA Exoplanet Science Institute, Caltech/IPAC(NASA系外行星科学研究所/加州理工学院IPAC);Stephen F. Austin State University(斯蒂芬·F·奥斯汀州立大学);Princeton University(普林斯顿大学)
Discovery and Characterization of the TOI-4468 Planetary System: A Transiting Hot Jupiter With a Lone Nearby Outer Companion
University of Wisconsin–Madison(威斯康星大学麦迪逊分校);NASA Goddard Space Flight Center(NASA戈达德太空飞行中心);Center for Astrophysics | Harvard & Smithsonian(哈佛与史密森尼天体物理中心);Michigan State University(密歇根州立大学);Anton Pannekoek Institute for Astronomy, University of Amsterdam(阿姆斯特丹大学安东·潘内科克天文学研究所);ASTRON, Netherlands Institute for Radio Astronomy(荷兰射电天文研究所ASTRON);Centre for Astrophysics, University of Southern Queensland(南昆士兰大学天体物理学中心);Astrophysics & Space Institute, Schmid(施密德天体物理学与空间研究所)
TOI-1259Ab: A Warm Jupiter Orbiting a K-dwarf White-Dwarf Binary is on a Well-aligned Orbit
University of Amsterdam(阿姆斯特丹大学);Pontificia Universidad Católica de Chile(智利天主教 Pontificia 大学);Millennium Institute for Astrophysics(天体物理学千年研究所);Vanderbilt University(范德堡大学);Tufts University(塔夫茨大学);The Pennsylvania State University(宾夕法尼亚州立大学);Princeton University(普林斯顿大学);University of Pennsylvania(宾夕法尼亚大学)
TOI-2155 b: A Massive Brown Dwarf or a Very Low-Mass Star?
Sydney Institute for Astronomy, School of Physics, University of Sydney(悉尼大学物理学院天体物理学研究所);Department of Physics and McDonnell Center for the Space Sciences, Washington University(华盛顿大学物理系与麦克唐纳太空科学中心);Institute for Astronomy, University of Hawaii at Manoa(夏威夷大学马诺阿分校天文研究所);School of Physics and Astronomy, University of Leicester(莱斯特大学物理与天文学学院);Macquarie University Research Fellow (MQRF)(麦考瑞大学研究研究员(MQRF));Australian Astronomical Optics, Macquarie University(麦考瑞大学澳大利亚天文光学);Astrophysics and Space Technologies Research Centre, Macquarie University(麦考瑞大学天体物理学与空间技术中心)
Lithium Enrichment in a Subgiant Star with a Brown Dwarf Companion: A Planetary Engulfment Candidate
University of Michigan(密歇根大学);University of Wisconsin–Madison(威斯康星大学麦迪逊分校);Massachusetts Institute of Technology(麻省理工学院);University of California, Santa Cruz(加州大学圣克鲁兹分校);Texas Advanced Computing Center, University of Texas, Austin(德克萨斯大学奥斯汀分校高级计算中心);University of Wisconsin-Whitewater(威斯康星大学惠特沃分校)
TOI-6692b: An eccentric 130 day period giant planet with a single transit from TESS
Center for Astrophysics | Harvard & Smithsonian(天体物理中心 | 哈佛-史密森尼);University of Southern Queensland, Centre for Astrophysics(昆士兰大学南方分校,天体物理中心);Department of Astronomy and Astrophysics, University of California, Santa Cruz(加州大学圣克鲁兹分校天文与天体物理学系);Amateur Astronomer(业余天文学家);Brorfelde Observatory(布罗费尔德天文台);Citizen scientist, c/o Zooniverse, Department of Physics, University of Oxford(公民科学家,通过Zooniverse,牛津大学物理系)