HD 219134 Revisited: Planet d Transit Upper Limit and Planet f Transit Nondetection with ASTERIA and TESS
Article
Article Title | HD 219134 Revisited: Planet d Transit Upper Limit and Planet f Transit Nondetection with ASTERIA and TESS |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Seager, Sara, Knapp, Mary, Demory, Brice-Olivier, Krishnamurthy, Akshata, Huang, Chelsea X., Badenas Agusti, Mariona, Shporer, Avi, Weisserman, Drew, Becker, Becker, Vanderburg, Andrew, Smith, Matthew, Pong, Christopher M., Bailey, Vanessa P., Donne, Amanda, Di Pasquale, Peter, Campuzano, Brian, Smith, Colin, Luu, Jason, Babuscia, Alessandra, Bocchino, Robert L., Loveland, Jessica, Colley, Cody, Gedenk, Tobias, Kulkarni, Tejas, Hughes, Kyle, White, Mary, Krajewski, Joel, Fesq, Lorraine, Ricker, George, Vanderspek, Roland, Latham, David W., Jenkins, Jon M., Winn, Joshua N., Caldwell, Douglas A., Collins, Karen A., Dragomir, Diana, Fausnaugh, Michael, Glidden, Ana, Schlieder, Joshua E., Twicken, Joseph D. and Wohler, Bill |
Journal Title | The Astronomical Journal |
Journal Citation | 161 (3), p. 117 |
Number of Pages | 15 |
Year | 2021 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/1538-3881/abcd3d |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/1538-3881/abcd3d |
Abstract | HD 219134 is a K3V dwarf star with six reported radial-velocity discovered planets. The two innermost planets b and c show transits, raising the possibility of this system to be the nearest (6.53 pc), brightest (V = 5.57) example of a star with a compact multiple transiting planet system. Ground-based searches for transits of planets beyond b and c are not feasible because of the infrequent transits, long transit duration (∼5 hr), shallow transit depths (<1%), and large transit time uncertainty (∼half a day). We use the space-based telescopes the Arcsecond Space Telescope Enabling Research in Astrophysics (ASTERIA) and the Transiting Exoplanet Survey Satellite (TESS) to search for transits of planets f (P = 22.717 days and $M\sin i=7.3\pm 0.04{M}_{\oplus }$) and d (P = 46.859 days and $M\sin i=16.7\pm 0.64{M}_{\oplus }$). ASTERIA was a technology demonstration CubeSat with an opportunity for science in an extended program. ASTERIA observations of HD 219134 were designed to cover the 3σ transit windows for planets f and d via repeated visits over many months. While TESS has much higher sensitivity and more continuous time coverage than ASTERIA, only the HD 219134 f transit window fell within the TESS survey's observations. Our TESS photometric results definitively rule out planetary transits for HD 219134 f. We do not detect the Neptune-mass HD 219134 d transits and our ASTERIA data are sensitive to planets as small as 3.6 R⊕. We provide TESS updated transit times and periods for HD 219134 b and c, which are designated TOI 1469.01 and 1469.02 respectively. |
Keywords | Exoplanet astronomy; Broad band photometry; 486; 184 |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Massachusetts Institute of Technology, United States |
University of Bern, Switzerland | |
California Institute of Technology (Caltech), United States | |
University of Michigan, United States | |
University of Texas at Austin, United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
NASA Ames Research Center, United States | |
Princeton University, United States | |
SETI Institute, United States | |
University of New Mexico, United States | |
NASA Goddard Space Flight Center, United States |
https://research.usq.edu.au/item/yy9vx/hd-219134-revisited-planet-d-transit-upper-limit-and-planet-f-transit-nondetection-with-asteria-and-tess
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