J/other/Sci/365.1441 GJ 3512 radial velocity and light curves (Morales+, 2019)
A giant exoplanet orbiting a very-low-mass star challenges planet formation
models.
Morales J.C., Mustill A.J., Ribas I., Davies M.B., Reiners A., Bauer F.F.,
Kossakowski D., Herrero E., Rodriguez E., Lopez-Gonzalez M.J.,
Rodriguez-Lopez C., Bejar V.J.S., Gonzalez-Cuesta L., Luque R., Palle E.,
Perger M., Baroch D., Johansen A., Klahr H., Mordasini C.,
Anglada-Escude G., Caballero J.A., Cortes-Contreras M., Dreizler S.,
Lafarga M., Nagel E., Passegger V.M., Reffert S., Rosich A., Schweitzer A.,
Tal-Or L., Trifonov T., Zechmeister M., Quirrenbach A., Amado P.J.,
Guenther E.W., Hagen H.-J., Henning T., Jeffers S.V., Kaminski A.,
Kurster M., Montes D., Seifert W., Abellan F.J., Abril M., Aceituno J.,
Aceituno F.J., Alonso-Floriano F.J., Ammler-von Eiff M., Antona R.,
Arroyo-Torres B., Azzaro M., Barrado D., Becerril-Jarque S., Benitez D.,
Berdinas Z.M., Bergond G., Brinkmoller M., Del Burgo C., Burn R.,
Calvo-Ortega R., Cano J., Cardenas M.C., Cardona Guillen C., Carro J.,
Casal E., Casanova V., Casasayas-Barris N., Chaturvedi P., Cifuentes C.,
Claret A., Colome J., Czesla S., Diez-Alonso E., Dorda R., Emsenhuber A.,
Fernandez M., Fernandez-Martin A., Ferro I.M., Fuhrmeister B.,
Galadi-Enriquez D., Gallardo Cava I., Garcia Vargas M.L., Garcia-Piquer A.,
Gesa L., Gonzalez-Alvarez E., Gonzalez Hernandez J.I., Gonzalez-Peinado R.,
Guardia J., Guijarro A., de Guindos E., Hatzes A.P., Hauschildt P.H.,
Hedrosa R.P., Hermelo I., Hernandez Arabi R., Hernandez Otero F., Hintz D.,
Holgado G., Huber A., Huke P., Johnson E.N., de Juan E., Kehr M.,
Kemmer J., Kim M., Kluter J., Klutsch A., Labarga F., Labiche N.,
Lalitha S., Lampon M., Lara L.M., Launhardt R., Lazaro F.J., Lizon J.-L.,
Llamas M., Lodieu N., Lopez del Fresno M., Lopez Salas J.F.,
Lopez-Santiago J., Magan Madinabeitia H., Mall U., Mancini L., Mandel H.,
Marfil E., Marin Molina J.A., Martin E.L., Martin-Fernandez P.,
Martin-Ruiz S., Martinez-Rodriguez H., Marvin C.J., Mirabet E., Moya A.,
Naranjo V., Nelson R.P., Nortmann L., Nowak G., Ofir A., Pascual J.,
Pavlov A., Pedraz S., Perez Medialdea D., Perez-Calpena A.,
Perryman M.A.C., Rabaza O., Ramon Ballesta A., Rebolo R., Redondo P.,
Rix H.-W., Rodler F., Rodriguez Trinidad A., Sabotta S., Sadegi S.,
Salz M., Sanchez-Blanco E., Sanchez Carrasco M.A., Sanchez-Lopez A.,
Sanz-Forcada J., Sarkis P., Sarmiento L.F., Schafer S., Schlecker M.,
Schmitt J.H.M.M., Schofer P., Solano E., Sota A., Stahl O., Stock S.,
Stuber T., Sturmer J., Suarez J.C., Tabernero H.M., Tulloch S.M.,
Veredas G., Vico-Linares J.I., Vilardell F., Wagner K., Winkler J.,
Wolthoff V., Yan F., Zapatero Osorio M.R.
<Science, 365, 1441-1445 (2019)>
=2019Sci...365.1441M 2019Sci...365.1441M (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Exoplanets ; Stars, M-type ;
Radial velocities ; Photometry
Abstract:
Surveys have shown that super-Earth and Neptune-mass exoplanets are
more frequent than gas giants around low-mass stars, as predicted by
the core accretion theory of planet formation. We report the discovery
of a giant planet around the very-low-mass star GJ 3512, as determined
by optical and near-infrared radial-velocity observations. The planet
has a minimum mass of 0.46 Jupiter masses, very high for such a small
host star, and an eccentric 204-day orbit. Dynamical models show that
the high eccentricity is most likely due to planet-planet
interactions. We use simulations to demonstrate that the GJ 3512
planetary system challenges generally accepted formation theories, and
that it puts constraints on the planet accretion and migration rates.
Disk instabilities may be more efficient in forming planets than
previously thought.
Description:
These tables list the radial velocities measured with the visual (VIS)
and near-infrared (NIR) channels of the CARMENES spectrograph
(Quirrenbach et al. 2018SPIE10702E..0WQ), and the stellar activity
indices computed with SERVAL (Zechmeister et al. 2018A&A...609A..12Z 2018A&A...609A..12Z).
Photometry obtained from the Montsec, Sierra Nevada, and las Cumbres
observatories is also listed here as used in the paper.
Objects:
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RA (2000) DE Designation(s)
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08 41 20.13 +59 29 50.4 GJ 3512 = LP 90-18
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tables1.dat 31 145 GJ 3512 VIS channel radial velocity data
tables2.dat 31 143 GJ 3512 NIR channel radial velocity data
tables3.dat 69 145 GJ 3512 Stellar activity indices data
tables4.dat 44 306 GJ 3512 Photometry
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Byte-by-byte Description of file: tables1.dat tables2.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d BJD Barycentric Julian Date of the observation
15- 22 F8.3 m/s RV Radial velocity
24- 31 F8.3 m/s e_RV Radial velocity uncertainty
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Byte-by-byte Description of file: tables3.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d BJD Barycentric Julian Date of the observation
15- 23 F9.4 --- Halpha Hydrogen Balmer line index
25- 33 F9.4 --- e_Halpha Uncertainty of the Hydrogen Balmer line index
35- 42 F8.3 m2/s2 dLW Differential line width index
44- 51 F8.3 m2/s2 e_dLW Uncertainty of the differential line width index
53- 60 F8.3 m/s CRX Chromatic index
62- 69 F8.3 m/s e_CRX Uncertainty of the chromatic index
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Byte-by-byte Description of file: tables4.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d BJD Barycentric Julian Date of the observation
15- 22 F8.4 mag dmag Differential magnitude
25- 31 F7.4 mag e_dmag Uncertainty of the differential magnitude
33- 34 A2 --- Band [RVI Ip] Photometric band of the data
36- 44 A9 --- Obs Observatory (1)
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Note (1): Photometry is obtained from different observatories/telescopes
as follows:
TJO/MEIA2 = Telescope Joan Oro at the Montsec Astronomical Observatory
SNO/T150 = 150-cm telescope at the Sierra Nevada Observatory
SNO/T90 = 90-cm telescope a the Sierra Nevada Observatory
LCO = Las Cumbres Observatory
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Acknowledgements:
Juan Carlos Morales, morales(at)ice.cat
References:
Quirrenbach, Amado, Ribas, et al., 2018SPIE10702E..0WQ
CARMENES: high-resolution spectra and precise radial velocities in the red
and infrared. SPIE, 107020W (2018)
Zechmeister, Reiners, Amado, et al., 2018A&A...609A..12Z 2018A&A...609A..12Z
Spectrum radial velocity analyser (SERVAL). High-precision radial
velocities and two alternative spectral indicators. A&A 609, A12 (2018)
(End) Juan Carlos Morales [ICE, Spain], Patricia Vannier [CDS] 11-Mar-2020