elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

TESS’s first planet

Gandolfi, D. and Barragan, O. and Livingston, J. H. and Fridlund, M. and Justesen, A. B. and Redfield, S. and Fossati, L. and Mathur, S. and Grziwa, S. and Cabrera, J. and García, R. A. and Persson, C. M. and Van Eylen, V. and Hatzes, A. P. and Hidalgo, D. and Albrecht, S. and Bugnet, L. and Cochran, W. D. and Csizmadia, S and Deeg, H. J. and Eigmüller, Philipp and Endl, M. and Erikson, A. and Esposito, M. and Guenther, E. and Korth, J. and Luque, R. and Montanes Rodríguez, P. and Nespral, D. and Nowak, G. and Pätzold, M. and Prieto-Arranz, J. (2018) TESS’s first planet. Astronomy & Astrophysics, 619, L10. EDP Sciences. DOI: 10.1051/0004-6361/201834289 ISSN 0004-6361

[img] PDF
1MB

Official URL: https://www.aanda.org/articles/aa/abs/2018/11/aa34289-18/aa34289-18.html

Abstract

We report on the confirmation and mass determination of π Men c, the first transiting planet discovered by NASA’s TESS space mission. π Men is a naked-eye (V = 5.65 mag), quiet G0 V star that was previously known to host a sub-stellar companion (π Men b) on a longperiod (Porb = 2091 days), eccentric (e = 0.64) orbit. Using TESS time-series photometry, combined with Gaia data, published UCLES at AAT Doppler measurements, and archival HARPS at ESO-3.6m radial velocities, we found that π Men c is a close-in planet with an orbital period of Porb = 6.27 days, a mass of Mc = 4.52 ± 0.81 M⊕, and a radius of Rc = 2.06 ± 0.03 R⊕. Based on the planet’s orbital period and size, π Men c is a super-Earth located at, or close to, the radius gap, while its mass and bulk density suggest it may have held on to a significant atmosphere. Because of the brightness of the host star, this system is highly suitable for a wide range of further studies to characterize the planetary atmosphere and dynamical properties. We also performed an asteroseismic analysis of the TESS data and detected a hint of power excess consistent with the seismic values expected for this star, although this result depends on the photometric aperture used to extract the light curve. This marginal detection is expected from pre-launch simulations hinting at the asteroseismic potential of the TESS mission for longer, multi-sector observations and/or for more evolved bright stars.

Item URL in elib:https://elib.dlr.de/125023/
Document Type:Article
Title:TESS’s first planet
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gandolfi, D.Dipartimento di Fisica, Universitadi Torino, via P. Giuria 1, I-10125 Torino, ItalyUNSPECIFIED
Barragan, O.Dipartimento di Fisica, Universita degli Studi di Trino, via Pietro Giuria 1, 10125 Torino, ItalyUNSPECIFIED
Livingston, J. H.Department of Astronomy, Graduate School of Science, The University of Tokyo, JapanUNSPECIFIED
Fridlund, M.Leiden Observatory, University of Leiden, PO Box 9513, 2300 RA, Leiden, The Netherlands | Department of Earth and Space Sciences, Chalmers University of Technology, Onsala Space Observatory, 439 92 Onsala, SwedenUNSPECIFIED
Justesen, A. B.Stellar Astrophysics Centre, Deparment of Physics and Astronomy,UNSPECIFIED
Redfield, S.Astronomy Department and Van Vleck Observatory, Wesleyan University, Middletown, CT 06459, USAUNSPECIFIED
Fossati, L.Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042, Graz, AustriaUNSPECIFIED
Mathur, S.Departamento de Astrofísica, Universidad de La Laguna, E-38206,UNSPECIFIED
Grziwa, S.Rheinisches Institut furr Umweltforschung an der Universitaet zu Koeln, Aachener Strasse 209, 50931 Koeln, GermanyUNSPECIFIED
Cabrera, J.juan.cabrera (at) dlr.deUNSPECIFIED
García, R. A.IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette,UNSPECIFIED
Persson, C. M.Department of Earth and Space Sciences, Chalmers University of Technology, Onsala Space Observatory, 439 92, Onsala, SwedenUNSPECIFIED
Van Eylen, V.Leiden Observatory, University of Leiden, PO Box 9513, 2300 RA, Leiden, The NetherlandsUNSPECIFIED
Hatzes, A. P.Thüringer Landessternwarte Tautenburg (Germany)UNSPECIFIED
Hidalgo, D.Instituto de Astrof´ısica de Canarias, E-38205 La Laguna, Tenerife, SpainUNSPECIFIED
Albrecht, S.Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, DenmarkUNSPECIFIED
Bugnet, L.IRFU,CEA, univerite Paris-Saclay,F-91191 Gif-sur-Yvette, FranceUNSPECIFIED
Cochran, W. D.Department of Astronomy and McDonald Observatory, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712, USAUNSPECIFIED
Csizmadia, Sszilard.csizmadia (at) dlr.deUNSPECIFIED
Deeg, H. J.Instituto de Astrofísica de Andalucía, Granada, SpainUNSPECIFIED
Eigmüller, PhilippPhilipp.Eigmueller (at) dlr.dehttps://orcid.org/0000-0003-4096-0594
Endl, M.Department of Astronomy and McDonald Observatory, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712, USAUNSPECIFIED
Erikson, A.anders.erikson (at) dlr.deUNSPECIFIED
Esposito, M.INAF – Osservatorio Astronomico di Capodimonte (INAF-OAC), Napoli, ItalyUNSPECIFIED
Guenther, E.Thüringer Landessternwarte TautenburgUNSPECIFIED
Korth, J.Rheinisches Institut fuer Umweltforschung an der Universitaet zu Koeln, Aachener Strasse 209, 50931 Koeln, GermanyUNSPECIFIED
Luque, R.Departamento de Astrofísica, Universidad de La Laguna, E-38206,UNSPECIFIED
Montanes Rodríguez, P.Instituto de Astrofísica de Canarias, C/ Vía Láctea s/n, E-38205, LaUNSPECIFIED
Nespral, D.Instituto de Astrofísica de Canarias, C/ Vía Láctea s/n, E-38205, LaUNSPECIFIED
Nowak, G.Departamento de Astrofísica, Universidad de La Laguna, E-38206,UNSPECIFIED
Pätzold, M.Rheinisches Institut für Umweltforschung, Abteilung Planetenforschung an der Universität zu Köln, Aachener Strasse 209, 50931UNSPECIFIED
Prieto-Arranz, J.Instituto de Astrofísica de Canarias, C/ Vía Láctea s/n, E-38205, LaUNSPECIFIED
Date:2018
Journal or Publication Title:Astronomy & Astrophysics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:619
DOI :10.1051/0004-6361/201834289
Page Range:L10
Publisher:EDP Sciences
ISSN:0004-6361
Status:Published
Keywords:​Planetary systems – Planets and satellites: individual: pi Mensae b, pi Mensae c, pi Mensae,-.- Stars: fundamental parameters – Stars: individual: π Mensae – Techniques: photometric – Techniques: radial velocities
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt COROT Beteiligung
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Deposited By: Schubert, Renate
Deposited On:14 Dec 2018 08:46
Last Modified:31 Jul 2019 20:23

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.