| Issue |
A&A
Volume 665, September 2022
|
|
|---|---|---|
| Article Number | A157 | |
| Number of page(s) | 28 | |
| Section | Planets and planetary systems | |
| DOI | https://doi.org/10.1051/0004-6361/202243763 | |
| Published online | 27 September 2022 | |
Null transit detections of 68 radial-velocity exoplanets observed by TESS
1
Universidad Nacional de Córdoba, Observatorio Astronómico,
Laprida 854,
X5000BGR,
Córdoba, Argentina
e-mail: flavialovos@unc.edu.ar
2
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, CABA, CPC 1425FQB, Argentina
3
International Center for Advanced Studies (ICAS) and ICIFI (CONICET), ECyT-UNSAM, Campus Miguelete, 25 de Mayo y Francia, (1650) Buenos Aires, Argentina
4
Gerencia de Tecnología de la información y de las Comunicaciones (GTIC), Subgerencia Vinculación y Desarrollo de Nuevas Tecnologías de la Información, DCAP-CNEA. Centro Atómico Constituyentes, Av. Gral. Paz 1499, ( 1650 ) Buenos Aires, Argentina
Received:
12
April
2022
Accepted:
11
July
2022
In recent years, the number of exoplanets has grown considerably. The most successful techniques in these detections are the radial velocity (RV) and planetary transits techniques, the latter of which has been significantly advanced by the Kepler, K2 and, more recently, the Transiting Exoplanet Survey Satellite (TESS) missions. The detection of exoplanets by means of both transits and RVs is of importance because this allows the characterization of their bulk densities and internal compositions. The TESS survey offers a unique possibility to search for transits of extrasolar planets detected using RVs. In this work, we present the results of our search for transits of RV-detected planets using the photometry of the TESS space mission. We focus on systems with super-Earth- and Neptune-sized planets on orbits with periods of shorter than 30 days. This cut is intended to keep objects with a relatively high transit probability, and is also consistent with the duration of TESS observations on a single sector. Given the summed geometric transit probabilities, the expected number of transiting planets is 3.4 ± 1.8. The sample contains two known transiting planets. We report null results for the remaining 66 out of 68 planets studied, and we exclude in all cases planets larger than 2.4 R⊕ under the assumption of central transits. The remaining two planets orbit HD 136352 and were recently announced.
Key words: planetary systems / techniques: radial velocities / techniques: photometric
© F. V. Lovos et al. 2022
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
This article is published in open access under the Subscribe-to-Open model. Subscribe to A&A to support open access publication.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.