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.

PDF - Published version
10MB

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:

Authors	Institution or Email of Authors	Author's ORCID iD
Carleo, Ilaria	INAF—Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, I-35122, Padova, Italy	UNSPECIFIED
Gandolfi, Davide	Dipartimento di Fisica, Universita degli Studi di Torino, via Pietro Giuria 1, I-10125, Torino, Italy ); 0000-0001-8627-9628	UNSPECIFIED
Barragan, Oscar	Oxford Astrophysics, Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK	UNSPECIFIED
Livingston, John H.	Department of Astronomy, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan 0000-0002-4881-3620	UNSPECIFIED
Persson, Carina M.	Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden	UNSPECIFIED
Lam, Kristine W.F.	Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 36, D-10623 Berlin, Germany	UNSPECIFIED
Vidotto, Aline	School of Physics, Trinity College Dublin, The University of Dublin College Green, Dublin 2, Dublin, Ireland	UNSPECIFIED
Lund, Michael B.	NASA Exoplanet Science Institute/Caltech-IPAC, MC 314-6, 1200 E California Blvd, Pasadena, CA 91125, USA	UNSPECIFIED
D'Angelo, Carolina Villarreal	School of Physics, Trinity College Dublin, The University of Dublin College Green, Dublin 2, Dublin, Ireland	UNSPECIFIED
Collins, Karen A.	Center for Astrophysics, Harvard and Smithsonian, Cambridge, MA, USA	UNSPECIFIED
Fossati, Luca	Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8041 Graz, Austria 0000-0003-4426-9530	UNSPECIFIED
Howard, Andrew W.	Department of Astronomy, California Institute of Technology, Pasadena, CA 91125, USA	UNSPECIFIED
Kubyshkina, Daria	Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8041 Graz, Austria 0000-0001-9137-9818	UNSPECIFIED
Brahm, Rafael	Center of Astro-Engineering UC, Pontificia Universidad Católica de Chile, Santiago, Chile; Millennium Institute for Astrophysics, Santiago, Chile	UNSPECIFIED
Oklopvić, Antonija	Center for Astrophysics\|Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA	UNSPECIFIED
Mollière, Paul	Max-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, D-69117, Germany	UNSPECIFIED
Redfield, Seth	Astronomy Department and Van Vleck Observatory, Wesleyan University, Middletown, CT 06459, USA	UNSPECIFIED
Serrano, Luisa Maria	Dipartimento di Fisica, Universita degli Studi di Torino, via Pietro Giuria 1, I-10125, Torino, Italy ); 0000-0001-8627-9628	UNSPECIFIED
Dai, Fei	Department 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, USA	UNSPECIFIED
Fridlund, Malcolm	Department 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 0000-0003-2180-9936	UNSPECIFIED
Borsa, Francesco	INAF—Osservatorio Astronomico di Brera, Via E. Bianchi 46, I-23807 Merate, Italy	UNSPECIFIED
Korth, Judith	Rheinisches Institut für Umweltforschung an der Universität zu Köln, Aachener Strasse 209, D-50931 Köln, Germany	UNSPECIFIED
Esposito, Massimiliano	Thuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenberg, Germany	UNSPECIFIED
Díaz, Matías R.	Departamento de Astronomía, Universidad de Chile, Las Condes, Chile; Centro de Astrofísica y Tecnologías Afines (CATA), Santiago, Chile	UNSPECIFIED
Nielsen, Louise Dyregaard	Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290 Versoix, Switzerland	UNSPECIFIED
Hellier, Coel	Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK	UNSPECIFIED
Mathur, Savita	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	UNSPECIFIED
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 0000-0003-0047-4241	UNSPECIFIED
Hatzes, Artie P.	Thuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenberg, Germany	UNSPECIFIED
Benatti, Serena	INAF—Osservatorio Astronomico di Palermo, Piazza del Parlamento, 1, I-90134 Palermo, Italy	UNSPECIFIED
Rodler, Florian	European Southern Observatory(ESO), Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago de Chile, Chile	UNSPECIFIED
Alarcon, Javier	European Southern Observatory(ESO), Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago de Chile, Chile	UNSPECIFIED
Spina, Lorenzo	School of Physics and Astronomy, Monash University, VIC 3800, Australia	UNSPECIFIED
Santos, Ângela R.G.	Space Science Institute, 4765 Walnut Street, Suite B, Boulder CO 80301, USA	UNSPECIFIED
Georgieva, Iskra	Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden	UNSPECIFIED
Garcia, Rafael A.	Laboratoire AIM, CEA/DSM---CNRS---Univ. Paris Diderot - IRFU/SAp, Centre de Saclay, F-91191 Gif-sur-Yvette, France	UNSPECIFIED
Gonzalez-Cuesta, Lucia	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	UNSPECIFIED
Ricker, George R.	Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA	UNSPECIFIED
Vanderspek, Roland	Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA	UNSPECIFIED
Latham, David W.	Center for Astrophysics \| Harvard and Smithsonian, Cambridge, MA, USA	UNSPECIFIED
Seager, Sara	Department 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, USA	UNSPECIFIED
Winn, Joshua N.	Department of Astrophysics Sciences, Princeton University, 4 Ivy Lane, Priceton, NJ 08544, USA	UNSPECIFIED
Jenkins, Jon M.	NASA Ames Research Center, Moffett Field, CA 94035, USA	UNSPECIFIED
Albrecht, Simon	Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark	UNSPECIFIED
Batalha, Natalie M.	Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95060, USA	UNSPECIFIED
Beard, Corey	Department of Physics & Astronomy, University of California Irvine, Irvine, CA 92697, USA	UNSPECIFIED
Boyd, Patricia T.	NASA Goddard Space Flight Center, Greenbelt, MD, USA	UNSPECIFIED
Bouchy, Francois	Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, Switzerland	UNSPECIFIED
Burt, Jennifer A.	Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove drive, Pasadena CA 91109, USA	UNSPECIFIED
Butler, R. Paul	Carnegie Institution for Science, Earth & Planets Laboratory, 5241 Broad Branch Road NW, Washington DC 20015, USA	UNSPECIFIED
Cabrera Perez, Juan	UNSPECIFIED	https://orcid.org/0000-0001-6653-5487
Chontos, Ashley	Institute for Astronomy, University of Hawai‘i, 2680 Woodlawn Drive, Honolulu, HI 96822, USA	UNSPECIFIED
Ciardi, David R.	Caltech/IPAC-NASA Exoplanet Science Institute, Pasadena, CA, USA	UNSPECIFIED
Cochran, William D.	Department of Astronomy and McDonald Observatory, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712, USA 0000-0001-9662-3496	UNSPECIFIED
Collins, Kevin I.	George Mason University, Fairfax, VA, USA	UNSPECIFIED
Crane, Jeffrey D.	Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA	UNSPECIFIED
Crossfield, Ian J.M.	Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA	UNSPECIFIED
Csizmadia, Szilard	UNSPECIFIED	UNSPECIFIED
Dragomir, Diana	Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, USA	UNSPECIFIED
Dressing, Courtney	501 Campbell Hall, University of California at Berkeley, Berkeley, CA 94720, USA	UNSPECIFIED
Eigmüller, Philipp	UNSPECIFIED	https://orcid.org/0000-0003-4096-0594
Endl, Michael	Department of Astronomy and McDonald Observatory, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712, USA 0000-0002-7714-6310	UNSPECIFIED
Erikson, Anders	UNSPECIFIED	UNSPECIFIED
Espinoza, Néstor	Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA	UNSPECIFIED
Fausnaugh, Michael	Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA	UNSPECIFIED
Feng, Fabo	Carnegie Institution for Science, Earth & Planets Laboratory, 5241 Broad Branch Road NW, Washington DC 20015, USA	UNSPECIFIED
Flowers, Erin	Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ, 08544, USA	UNSPECIFIED
Fulton, Benjamin	NASA Exoplanet Science Institute/Caltech-IPAC, MC 314-6, 1200 E California Blvd, Pasadena, CA 91125, USA	UNSPECIFIED
Gonzales, Erica J.	Department of Astronomy and Astrophysics, University of California at Santa Cruz, Santa Cruz, CA, USA	UNSPECIFIED
Grieves, Nolan	Observatoire de Genève, Université de Genève, Chemin des Maillettes 51, 1290 Sauverny, Switzerland	UNSPECIFIED
Grziwa, Sascha	Rheinisches Institut für Umweltforschung an der Universität zu Köln, Aachener Strasse 209, D-50931 Köln, Germany	UNSPECIFIED
Guenther, Eike W.	Thuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenberg, Germany	UNSPECIFIED
Guerrero, Natalia M.	Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA	UNSPECIFIED
Henning, Thomas	Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany	UNSPECIFIED
Hidalgo, Diego	Instituto de Astrofisica de Canarias, C/ Via Lactea s/n, E-38205 La Laguna, Spain	UNSPECIFIED
Hirano, Teruyuki	Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan);	UNSPECIFIED
Hjorth, Maria	Stellar Astrophysics Centre, Dep. of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark	UNSPECIFIED
Huber, Daniel	Institute for Astronomy, University of Hawai‘i, 2680 Woodlawn Drive, Honolulu, HI 96822, USA	UNSPECIFIED
Isaacson, Howard	Department of Astronomy, University of California Berkeley, Berkeley CA 94720, USA	UNSPECIFIED
Jones, Matias	European Southern Observatory(ESO), Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago de Chile, Chile	UNSPECIFIED
Jordán, Andrés	Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Av. Diagonal las Torres 2640, Peñalolén, Santiago, Chile; Millennium Institute for Astrophysics, Chile	UNSPECIFIED
Kabath, Petr	Astronomical Institute, Czech Academy of Sciences, Fricova 298, 25165, Ondrejov, Czech Republic 0000-0002-1623-5352	UNSPECIFIED
Kane, Stephen R.	Department of Earth and Planetary Sciences, University of California, Riverside, CA 92521, USA	UNSPECIFIED
Knudstrup, Emil	Stellar Astrophysics Centre, Dep. of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark	UNSPECIFIED
Lubin, Jack	Department of Physics & Astronomy, University of California Irvine, Irvine, CA 92697, USA	UNSPECIFIED
Luque, Rafael	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	UNSPECIFIED
Mireles, Ismael	Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA	UNSPECIFIED
Narita, Norio	Department 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 ; Nation	UNSPECIFIED
Nespral, David	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	UNSPECIFIED
Niraula, Prajwal	Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA 0000-0002-8052-3893	UNSPECIFIED
Nowak, Grzegorz	Instituto de Astrofísica de Canarias, C/ Vía Láctea s/n, E-38205 La Laguna, Spain	UNSPECIFIED
Palle, Enric	Instituto de Astrofísica de Canarias, C/ Vía Láctea s/n, E-38205 La Laguna, Spain	UNSPECIFIED
Pätzold, Martin	Rheinisches Institut für Umweltforschung, Universität zu Köln, D-50931 Köln, Germany	UNSPECIFIED
Petigura, Erik A.	Department of Physics & Astronomy, University of California Los Angeles, Los Angeles, CA 90095, USA	UNSPECIFIED
Prieto-Arranz, Jorge	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	UNSPECIFIED
Rauer, H	UNSPECIFIED	UNSPECIFIED
Robertson, Paul	Department of Physics & Astronomy, University of California Irvine, Irvine, CA 92697, USA	UNSPECIFIED
Rose, Mark E.	NASA Ames Research Center, Moffett Field, CA 94035, USA	UNSPECIFIED
Roy, Arpita	Department of Astronomy, California Institute of Technology, Pasadena, CA 91125, USA	UNSPECIFIED
Sarkis, Paula	Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany	UNSPECIFIED
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, Switzerland	UNSPECIFIED
Ségransan, Damien	Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290 Versoix, Switzerland	UNSPECIFIED
Shectman, Stephen	Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA	UNSPECIFIED
Skarka, Marek	Astronomical 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 0000-0002-7602-0046	UNSPECIFIED
Smith, Alexis M.S.	UNSPECIFIED	UNSPECIFIED
Smith, Jeffrey C.	SETI Institute/NASA Ames Research Center, Moffett Field, CA, 94035, USA	UNSPECIFIED
Stassun, Keivan G.	Department of Physics and Astronomy, Vanderbilt University, Nashville, TN, USA; Department of Physics, Fisk University, Nashville, TN, USA	UNSPECIFIED
Teske, Johanna K.	The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA	UNSPECIFIED
Twicken, Joseph D.	NASA Ames Research Center, Moffett Field, CA 94035, USA; SETI Institute, 189 Bernardo Ave., Suite 200, Mountain View, CA 94043, USA	UNSPECIFIED
Van Eylen, Vincent	Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USA	UNSPECIFIED
Wang, Sharon X.	Department of Terrestrial Magnetism, Carnegie Institution for Science, 5241 Broad Branch Road, NW, Washington DC, 20015-1305, USA	UNSPECIFIED
Weiss, Lauren M.	Institute for Astronomy, University of Hawai‘i, 2680 Woodlawn Drive, Honolulu, HI 96822, USA	UNSPECIFIED
Wyttenbach, Aurélien	Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290 Versoix, Switzerland	UNSPECIFIED

Date:

September 2020

Journal or Publication Title:

Astronomical Journal

Refereed publication:

Yes

Open Access:

Yes

Gold Open Access:

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

Repository Staff Only: item control page