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The Multiplanet System TOI-421: A Warm Neptune and a Super Puffy Mini-Neptune Transiting a G9 V Star in a Visual Binary

Carleo, Ilaria and Gandolfi, Davide and Barragan, Oscar and Livingston, John H. and Persson, Carina M. and Lam, Kristine W.F. and Vidotto, Aline and Lund, Michael B. and D'Angelo, Carolina Villarreal and Collins, Karen A. and Fossati, Luca and Howard, Andrew W. and Kubyshkina, Daria and Brahm, Rafael and Oklopvić, Antonija and Mollière, Paul and Redfield, Seth and Serrano, Luisa Maria and Dai, Fei and Fridlund, Malcolm and Borsa, Francesco and Korth, Judith and Esposito, Massimiliano and Díaz, Matías R. and Nielsen, Louise Dyregaard and Hellier, Coel and Mathur, Savita and Deeg, Hans J. and Hatzes, Artie P. and Benatti, Serena and Rodler, Florian and Alarcon, Javier and Spina, Lorenzo and Santos, Ângela R.G. and Georgieva, Iskra and Garcia, Rafael A. and Gonzalez-Cuesta, Lucia and Ricker, George R. and Vanderspek, Roland and Latham, David W. and Seager, Sara and Winn, Joshua N. and Jenkins, Jon M. and Albrecht, Simon and Batalha, Natalie M. and Beard, Corey and Boyd, Patricia T. and Bouchy, Francois and Burt, Jennifer A. and Butler, R. Paul and Cabrera Perez, Juan and Chontos, Ashley and Ciardi, David R. and Cochran, William D. and Collins, Kevin I. and Crane, Jeffrey D. and Crossfield, Ian J.M. and Csizmadia, Szilard and Dragomir, Diana and Dressing, Courtney and Eigmüller, Philipp and Endl, Michael and Erikson, Anders and Espinoza, Néstor and Fausnaugh, Michael and Feng, Fabo and Flowers, Erin and Fulton, Benjamin and Gonzales, Erica J. and Grieves, Nolan and Grziwa, Sascha and Guenther, Eike W. and Guerrero, Natalia M. and Henning, Thomas and Hidalgo, Diego and Hirano, Teruyuki and Hjorth, Maria and Huber, Daniel and Isaacson, Howard and Jones, Matias and Jordán, Andrés and Kabath, Petr and Kane, Stephen R. and Knudstrup, Emil and Lubin, Jack and Luque, Rafael and Mireles, Ismael and Narita, Norio and Nespral, David and Niraula, Prajwal and Nowak, Grzegorz and Palle, Enric and Pätzold, Martin and Petigura, Erik A. and Prieto-Arranz, Jorge and Rauer, H and Robertson, Paul and Rose, Mark E. and Roy, Arpita and Sarkis, Paula and Schlieder, Joshua E. and Ségransan, Damien and Shectman, Stephen and Skarka, Marek and Smith, Alexis M.S. and Smith, Jeffrey C. and Stassun, Keivan G. and Teske, Johanna K. and Twicken, Joseph D. and Van Eylen, Vincent and Wang, Sharon X. and Weiss, Lauren M. and Wyttenbach, Aurélien (2020) The Multiplanet System TOI-421: A Warm Neptune and a Super Puffy Mini-Neptune Transiting a G9 V Star in a Visual Binary. Astronomical Journal, 160 (3), p. 114. American Astronomical Society. doi: 10.3847/1538-3881/aba124. ISSN 0004-6256.

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Official URL: https://iopscience.iop.org/article/10.3847/1538-3881/aba124

Abstract

We report the discovery of a warm Neptune and a hot sub-Neptune transiting TOI-421 (BD-14 1137, TIC 94986319), a bright (V = 9.9) G9 dwarf star in a visual binary system observed by the Transiting Exoplanet Survey Satellite (TESS) space mission in Sectors 5 and 6. We performed ground-based follow-up observations—comprised of Las Cumbres Observatory Global Telescope transit photometry, NIRC2 adaptive optics imaging, and FIbre-fed Echellé Spectrograph, CORALIE, High Accuracy Radial velocity Planet Searcher, High Resolution Échelle Spectrometer, and Planet Finder Spectrograph high-precision Doppler measurements—and confirmed the planetary nature of the 16 day transiting candidate announced by the TESS team. We discovered an additional radial velocity signal with a period of five days induced by the presence of a second planet in the system, which we also found to transit its host star. We found that the inner mini-Neptune, TOI-421 b, has an orbital period of Pb = 5.19672 ± 0.00049 days, a mass of Mb = 7.17 ± 0.66 M⊕, and a radius of Rb = 2.68+0.19−0.18 R⊕, whereas the outer warm Neptune, TOI-421 c, has a period of Pc = 16.06819 ± 0.00035 days, a mass of Mc = 16.42+1.06−1.04 M⊕, a radius of Rc = 5.09+0.16−0.15 R⊕, and a density of ρc = 0.685+0.080−0.072 g cm-3. With its characteristics, the outer planet (ρc = 0.685+0.080−0.072 g cm-3) is placed in the intriguing class of the super-puffy mini-Neptunes. TOI-421 b and TOI-421 c are found to be well-suited for atmospheric characterization. Our atmospheric simulations predict significant Lyα transit absorption, due to strong hydrogen escape in both planets, as well as the presence of detectable CH4 in the atmosphere of TOI-421 c if equilibrium chemistry is assumed. * Based on observations made with ESO Telescopes at the La Silla Observatory under programs ID 1102.C-0923, 0103.C-0874, 0103.C-0759, 0103.C-0442, and 60.A-970. Based on observations obtained with the Nordic Optical Telescope (NOT), operated on the island of La Palma jointly by Denmark, Finland, Iceland, Norway, and Sweden, in the Spanish Observatorio del Roque de los Muchachos (ORM) of the Instituto de Astrofísica de Canarias (IAC). This paper includes data gathered with the 6.5 m Magellan Telescopes located at Las Campanas Observatory, Chile. This work makes use of observations from the LCOGT network.

Item URL in elib:https://elib.dlr.de/137492/
Document Type:Article
Title:The Multiplanet System TOI-421: A Warm Neptune and a Super Puffy Mini-Neptune Transiting a G9 V Star in a Visual Binary
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Carleo, IlariaINAF—Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, I-35122, Padova, ItalyUNSPECIFIED
Gandolfi, DavideDipartimento di Fisica, Universita degli Studi di Torino, via Pietro Giuria 1, I-10125, Torino, Italy ); 0000-0001-8627-9628UNSPECIFIED
Barragan, OscarOxford Astrophysics, Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UKUNSPECIFIED
Livingston, John H.Department of Astronomy, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan 0000-0002-4881-3620UNSPECIFIED
Persson, Carina M.Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, SwedenUNSPECIFIED
Lam, Kristine W.F.Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 36, D-10623 Berlin, GermanyUNSPECIFIED
Vidotto, AlineSchool of Physics, Trinity College Dublin, The University of Dublin College Green, Dublin 2, Dublin, IrelandUNSPECIFIED
Lund, Michael B.NASA Exoplanet Science Institute/Caltech-IPAC, MC 314-6, 1200 E California Blvd, Pasadena, CA 91125, USAUNSPECIFIED
D'Angelo, Carolina VillarrealSchool of Physics, Trinity College Dublin, The University of Dublin College Green, Dublin 2, Dublin, IrelandUNSPECIFIED
Collins, Karen A.Center for Astrophysics, Harvard and Smithsonian, Cambridge, MA, USAUNSPECIFIED
Fossati, LucaSpace Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8041 Graz, Austria 0000-0003-4426-9530UNSPECIFIED
Howard, Andrew W.Department of Astronomy, California Institute of Technology, Pasadena, CA 91125, USAUNSPECIFIED
Kubyshkina, DariaSpace Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8041 Graz, Austria 0000-0001-9137-9818UNSPECIFIED
Brahm, RafaelCenter of Astro-Engineering UC, Pontificia Universidad Católica de Chile, Santiago, Chile; Millennium Institute for Astrophysics, Santiago, ChileUNSPECIFIED
Oklopvić, AntonijaCenter for Astrophysics|Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAUNSPECIFIED
Mollière, PaulMax-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, D-69117, GermanyUNSPECIFIED
Redfield, SethAstronomy Department and Van Vleck Observatory, Wesleyan University, Middletown, CT 06459, USAUNSPECIFIED
Serrano, Luisa MariaDipartimento di Fisica, Universita degli Studi di Torino, via Pietro Giuria 1, I-10125, Torino, Italy ); 0000-0001-8627-9628UNSPECIFIED
Dai, FeiDepartment of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA 02139, USA ; Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USAUNSPECIFIED
Fridlund, MalcolmDepartment of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden ; Leiden Observatory, University of Leiden, PO Box 9513, 2300 RA, Leiden, The Netherlands 0000-0003-2180-9936UNSPECIFIED
Borsa, FrancescoINAF—Osservatorio Astronomico di Brera, Via E. Bianchi 46, I-23807 Merate, ItalyUNSPECIFIED
Korth, JudithRheinisches Institut für Umweltforschung an der Universität zu Köln, Aachener Strasse 209, D-50931 Köln, GermanyUNSPECIFIED
Esposito, MassimilianoThuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenberg, GermanyUNSPECIFIED
Díaz, Matías R.Departamento de Astronomía, Universidad de Chile, Las Condes, Chile; Centro de Astrofísica y Tecnologías Afines (CATA), Santiago, ChileUNSPECIFIED
Nielsen, Louise DyregaardGeneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290 Versoix, SwitzerlandUNSPECIFIED
Hellier, CoelAstrophysics Group, Keele University, Staffordshire, ST5 5BG, UKUNSPECIFIED
Mathur, SavitaInstituto de Astrofisica de Canarias, C/ Via Lactea s/n, E-38205 La Laguna, Spain; Departamento de Astrofisica, Universidad de La Laguna, E-38206 La Laguna, SpainUNSPECIFIED
Deeg, Hans J.Instituto de Astrofisica de Canarias, C/ Via Lactea s/n, E-38205 La Laguna, Spain ; Departamento de Astrofisica, Universidad de La Laguna, E-38206 La Laguna, Spain 0000-0003-0047-4241UNSPECIFIED
Hatzes, Artie P.Thuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenberg, GermanyUNSPECIFIED
Benatti, SerenaINAF—Osservatorio Astronomico di Palermo, Piazza del Parlamento, 1, I-90134 Palermo, ItalyUNSPECIFIED
Rodler, FlorianEuropean Southern Observatory(ESO), Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago de Chile, ChileUNSPECIFIED
Alarcon, JavierEuropean Southern Observatory(ESO), Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago de Chile, ChileUNSPECIFIED
Spina, LorenzoSchool of Physics and Astronomy, Monash University, VIC 3800, AustraliaUNSPECIFIED
Santos, Ângela R.G.Space Science Institute, 4765 Walnut Street, Suite B, Boulder CO 80301, USAUNSPECIFIED
Georgieva, IskraDepartment of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, SwedenUNSPECIFIED
Garcia, Rafael A.Laboratoire AIM, CEA/DSM---CNRS---Univ. Paris Diderot - IRFU/SAp, Centre de Saclay, F-91191 Gif-sur-Yvette, FranceUNSPECIFIED
Gonzalez-Cuesta, LuciaInstituto de Astrofisica de Canarias, C/ Via Lactea s/n, E-38205 La Laguna, Spain ; Departamento de Astrofisica, Universidad de La Laguna, E-38206 La Laguna, SpainUNSPECIFIED
Ricker, George R.Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USAUNSPECIFIED
Vanderspek, RolandDepartment of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USAUNSPECIFIED
Latham, David W.Center for Astrophysics | Harvard and Smithsonian, Cambridge, MA, USAUNSPECIFIED
Seager, SaraDepartment of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Earth and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USAUNSPECIFIED
Winn, Joshua N.Department of Astrophysics Sciences, Princeton University, 4 Ivy Lane, Priceton, NJ 08544, USAUNSPECIFIED
Jenkins, Jon M.NASA Ames Research Center, Moffett Field, CA 94035, USAUNSPECIFIED
Albrecht, SimonStellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, DenmarkUNSPECIFIED
Batalha, Natalie M.Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95060, USAUNSPECIFIED
Beard, CoreyDepartment of Physics & Astronomy, University of California Irvine, Irvine, CA 92697, USAUNSPECIFIED
Boyd, Patricia T.NASA Goddard Space Flight Center, Greenbelt, MD, USAUNSPECIFIED
Bouchy, FrancoisObservatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, SwitzerlandUNSPECIFIED
Burt, Jennifer A.Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove drive, Pasadena CA 91109, USAUNSPECIFIED
Butler, R. PaulCarnegie Institution for Science, Earth & Planets Laboratory, 5241 Broad Branch Road NW, Washington DC 20015, USAUNSPECIFIED
Cabrera Perez, JuanJuan.Cabrera (at) dlr.dehttps://orcid.org/0000-0001-6653-5487
Chontos, AshleyInstitute for Astronomy, University of Hawai‘i, 2680 Woodlawn Drive, Honolulu, HI 96822, USAUNSPECIFIED
Ciardi, David R.Caltech/IPAC-NASA Exoplanet Science Institute, Pasadena, CA, USAUNSPECIFIED
Cochran, William D.Department of Astronomy and McDonald Observatory, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712, USA 0000-0001-9662-3496UNSPECIFIED
Collins, Kevin I.George Mason University, Fairfax, VA, USAUNSPECIFIED
Crane, Jeffrey D.Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USAUNSPECIFIED
Crossfield, Ian J.M.Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USAUNSPECIFIED
Csizmadia, Szilardszilard.csizmadia (at) dlr.deUNSPECIFIED
Dragomir, DianaDepartment of Physics and Astronomy, University of New Mexico, Albuquerque, NM, USAUNSPECIFIED
Dressing, Courtney501 Campbell Hall, University of California at Berkeley, Berkeley, CA 94720, USAUNSPECIFIED
Eigmüller, PhilippPhilipp.Eigmueller (at) dlr.dehttps://orcid.org/0000-0003-4096-0594
Endl, MichaelDepartment of Astronomy and McDonald Observatory, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712, USA 0000-0002-7714-6310UNSPECIFIED
Erikson, Andersanders.erikson (at) dlr.deUNSPECIFIED
Espinoza, NéstorSpace Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USAUNSPECIFIED
Fausnaugh, MichaelDepartment of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USAUNSPECIFIED
Feng, FaboCarnegie Institution for Science, Earth & Planets Laboratory, 5241 Broad Branch Road NW, Washington DC 20015, USAUNSPECIFIED
Flowers, ErinDepartment of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ, 08544, USAUNSPECIFIED
Fulton, BenjaminNASA Exoplanet Science Institute/Caltech-IPAC, MC 314-6, 1200 E California Blvd, Pasadena, CA 91125, USAUNSPECIFIED
Gonzales, Erica J.Department of Astronomy and Astrophysics, University of California at Santa Cruz, Santa Cruz, CA, USAUNSPECIFIED
Grieves, NolanObservatoire de Genève, Université de Genève, Chemin des Maillettes 51, 1290 Sauverny, SwitzerlandUNSPECIFIED
Grziwa, SaschaRheinisches Institut für Umweltforschung an der Universität zu Köln, Aachener Strasse 209, D-50931 Köln, GermanyUNSPECIFIED
Guenther, Eike W.Thuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenberg, GermanyUNSPECIFIED
Guerrero, Natalia M.Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USAUNSPECIFIED
Henning, ThomasMax-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, GermanyUNSPECIFIED
Hidalgo, DiegoInstituto de Astrofisica de Canarias, C/ Via Lactea s/n, E-38205 La Laguna, SpainUNSPECIFIED
Hirano, TeruyukiDepartment of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan);UNSPECIFIED
Hjorth, MariaStellar Astrophysics Centre, Dep. of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, DenmarkUNSPECIFIED
Huber, DanielInstitute for Astronomy, University of Hawai‘i, 2680 Woodlawn Drive, Honolulu, HI 96822, USAUNSPECIFIED
Isaacson, HowardDepartment of Astronomy, University of California Berkeley, Berkeley CA 94720, USAUNSPECIFIED
Jones, MatiasEuropean Southern Observatory(ESO), Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago de Chile, ChileUNSPECIFIED
Jordán, AndrésFacultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Av. Diagonal las Torres 2640, Peñalolén, Santiago, Chile; Millennium Institute for Astrophysics, ChileUNSPECIFIED
Kabath, PetrAstronomical Institute, Czech Academy of Sciences, Fricova 298, 25165, Ondrejov, Czech Republic 0000-0002-1623-5352UNSPECIFIED
Kane, Stephen R.Department of Earth and Planetary Sciences, University of California, Riverside, CA 92521, USAUNSPECIFIED
Knudstrup, EmilStellar Astrophysics Centre, Dep. of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, DenmarkUNSPECIFIED
Lubin, JackDepartment of Physics & Astronomy, University of California Irvine, Irvine, CA 92697, USAUNSPECIFIED
Luque, RafaelInstituto de Astrofisica de Canarias, C/ Via Lactea s/n, E-38205 La Laguna, Spain; Departamento de Astrofisica, Universidad de La Laguna, E-38206 La Laguna, SpainUNSPECIFIED
Mireles, IsmaelDepartment of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USAUNSPECIFIED
Narita, NorioDepartment of Astronomy, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Instituto de Astrofisica de Canarias, C/ Via Lactea s/n, E-38205 La Laguna, Spain; Astrobiology Center, NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; NationUNSPECIFIED
Nespral, DavidInstituto de Astrofisica de Canarias, C/ Via Lactea s/n, E-38205 La Laguna, Spain; Departamento de Astrofisica, Universidad de La Laguna, E-38206 La Laguna, SpainUNSPECIFIED
Niraula, PrajwalDepartment of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA 0000-0002-8052-3893UNSPECIFIED
Nowak, GrzegorzInstituto de Astrofísica de Canarias, C/ Vía Láctea s/n, E-38205 La Laguna, SpainUNSPECIFIED
Palle, EnricInstituto de Astrofísica de Canarias, C/ Vía Láctea s/n, E-38205 La Laguna, SpainUNSPECIFIED
Pätzold, MartinRheinisches Institut für Umweltforschung, Universität zu Köln, D-50931 Köln, GermanyUNSPECIFIED
Petigura, Erik A.Department of Physics & Astronomy, University of California Los Angeles, Los Angeles, CA 90095, USAUNSPECIFIED
Prieto-Arranz, JorgeInstituto de Astrofisica de Canarias, C/ Via Lactea s/n, E-38205 La Laguna, Spain; Departamento de Astrofisica, Universidad de La Laguna, E-38206 La Laguna, SpainUNSPECIFIED
Rauer, Hheike.rauer (at) dlr.deUNSPECIFIED
Robertson, PaulDepartment of Physics & Astronomy, University of California Irvine, Irvine, CA 92697, USAUNSPECIFIED
Rose, Mark E.NASA Ames Research Center, Moffett Field, CA 94035, USAUNSPECIFIED
Roy, ArpitaDepartment of Astronomy, California Institute of Technology, Pasadena, CA 91125, USAUNSPECIFIED
Sarkis, PaulaMax-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, GermanyUNSPECIFIED
Schlieder, Joshua E.NASA Goddard Space Flight Center, Exoplanets and Stellar Astrophysics Laboratory (Code 667), Greenbelt, MD, USAGeneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290 Versoix, SwitzerlandUNSPECIFIED
Ségransan, DamienGeneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290 Versoix, SwitzerlandUNSPECIFIED
Shectman, StephenObservatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USAUNSPECIFIED
Skarka, MarekAstronomical Institute, Czech Academy of Sciences, Fricova 298, 25165, Ondrejov, Czech Republic; Department of Theoretical Physics and Astrophysics, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic 0000-0002-7602-0046UNSPECIFIED
Smith, Alexis M.S.alexis.smith (at) dlr.deUNSPECIFIED
Smith, Jeffrey C.SETI Institute/NASA Ames Research Center, Moffett Field, CA, 94035, USAUNSPECIFIED
Stassun, Keivan G.Department of Physics and Astronomy, Vanderbilt University, Nashville, TN, USA; Department of Physics, Fisk University, Nashville, TN, USAUNSPECIFIED
Teske, Johanna K.The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USAUNSPECIFIED
Twicken, Joseph D.NASA Ames Research Center, Moffett Field, CA 94035, USA; SETI Institute, 189 Bernardo Ave., Suite 200, Mountain View, CA 94043, USAUNSPECIFIED
Van Eylen, VincentDepartment of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USAUNSPECIFIED
Wang, Sharon X.Department of Terrestrial Magnetism, Carnegie Institution for Science, 5241 Broad Branch Road, NW, Washington DC, 20015-1305, USAUNSPECIFIED
Weiss, Lauren M.Institute for Astronomy, University of Hawai‘i, 2680 Woodlawn Drive, Honolulu, HI 96822, USAUNSPECIFIED
Wyttenbach, AurélienGeneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290 Versoix, SwitzerlandUNSPECIFIED
Date:September 2020
Journal or Publication Title:Astronomical Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:160
DOI :10.3847/1538-3881/aba124
Page Range:p. 114
Publisher:American Astronomical Society
ISSN:0004-6256
Status:Published
Keywords:Exoplanet astronomy, Exoplanet systems, Exoplanets, Mini Neptunes, Hot Neptunes, Fundamental parameters of stars, High resolution spectroscopy, Transit photometry, Radial velocity, 486, 484, 498, 1063, 754, 555, 2096, 1709, 1332
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project PLATO (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Institute of Planetary Research > Leitungsbereich PF
Deposited By: Csizmadia, Szilard
Deposited On:16 Nov 2020 10:53
Last Modified:16 Nov 2020 12:24

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