RESEARCH
Research Groups Planets Stars Galaxies Cosmology Instrumentation Science Communication
Towards the detection and characterization of other Earths
Articles published during 2017

N. C. Santos, V. Zh. Adibekyan, C. Dorn, C. Mordasini, L. Noack, S. C. C. Barros, E. Delgado Mena, O. Demangeon, J. P. Faria, G. Israelian, S. G. Sousa
Constraining planet structure and composition from stellar chemistry: trends in different stellar populations
Astronomy & Astrophysics, 608, A94
2017 dezembro
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R. Cloutier, N. Astudillo-Defru, R. Doyon, X. Bonfils, J. -M. Almenara, B. Benneke, F. Bouchy, X. Delfosse, D. Ehrenreich, T. Forveille et al. (including: N. C. Santos)
Characterization of the K2-18 multi-planetary system with HARPS
A habitable zone super-Earth and discovery of a second, warm super-Earth on a non-coplanar orbit

Astronomy & Astrophysics, 608, A35
2017 dezembro
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S. C. C. Barros, H. Gosselin, D. Bayliss, E. Delgado Mena, B. Brugger, A. Santerne, D. J. Armstrong, V. Zh. Adibekyan, J. D. Armstrong, D. Barrado et al. (including: O. Demangeon, J. P. Faria, P. Figueira, S. Hojjatpanah, J. J. Neal, N. C. Santos, S. G. Sousa)
Precise masses for the transiting planetary system HD 106315 with HARPS
Astronomy & Astrophysics, 608, A25
2017 dezembro
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A. A. Hakobyan, L. V. Barkhudaryan, A. G. Karapetyan, G. A. Mamon, D. Kunth, V. Zh. Adibekyan, L. S. Aramyan, A. R. Petrosian, M. Turatto
Supernovae and their host galaxies - V. The vertical distribution of supernovae in disc galaxies
Monthly Notices of the Royal Astronomical Society, 471, 2, 11
2017 outubro
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M. Oshagh, N. C. Santos, P. Figueira, S. C. C. Barros, J.-F. Donati, V. Zh. Adibekyan, J. P. Faria, C. A. Watson, H. M. Cegla, X. Dumusque et al. (including: O. Demangeon)
Understanding stellar activity-induced radial velocity jitter using simultaneous K2 photometry and HARPS RV measurements
Astronomy & Astrophysics, 606, A107
2017 outubro
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E. Delgado Mena, M. Tsantaki, V. Zh. Adibekyan, S. G. Sousa, N. C. Santos, J. Hernández, G. Israelian
Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program
II. Cu, Zn, Sr, Y, Zr, Ba, Ce, Nd, and Eu

Astronomy & Astrophysics, 606, A94
2017 outubro
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J. Cabrera, S. C. C. Barros, D. J. Armstrong, D. Hidalgo, N. C. Santos, J. -M. Almenara, R. Alonso, M. Deleuil, O. Demangeon, R. F. Díaz et al. (including: A. Santerne, L. M. Serrano)
Disproving the validated planets K2-78b, K2-82b, and K2-92b
The importance of independently confirming planetary candidates

Astronomy & Astrophysics, 606, A75
2017 outubro
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F. Bouchy, R. Doyon, E. Artigau, C. Melo, O. Hernandez, F. Wildi, X. Delfosse, C. Lovis, P. Figueira, B. L. Canto Martins et al. (including: N. C. Santos, M. Abreu, V. Zh. Adibekyan, A. Cabral, J. Coelho, M. Oshagh, P. Santos)
Near-InfraRed Planet Searcher to Join HARPS on the ESO 3.6-metre Telescope
The Messenger, 169, 169, 7
2017 setembro
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N. Astudillo-Defru, R. F. Díaz, X. Bonfils, J. -M. Almenara, J. -B. Delisle, F. Bouchy, X. Delfosse, T. Forveille, C. Lovis, M. Mayor et al. (including: N. C. Santos)
The HARPS search for southern extra-solar planets
XLII. A system of Earth-mass planets around the nearby M dwarf YZ Ceti

Astronomy & Astrophysics, 605, L11
2017 setembro
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G. Clementini, L. Eyer, V. Ripepi, M. Marconi, T. Muraveva, A. Garofalo, L. M. Sarro, M. Palmer, X. Luri, R. Molinaro et al. (including: S. Antón)
Gaia Data Release 1
Testing parallaxes with local Cepheids and RR Lyrae stars

Astronomy & Astrophysics, 605, A79
2017 setembro
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E. Sedaghati, Henri M. J. Boffin, R. J. MacDonald, S. Gandhi, N. Madhusudhan, N. P. Gibson, M. Oshagh, A. Claret, H. Rauer
Detection of titanium oxide in the atmosphere of a hot Jupiter
Nature, 549, 7671, 18
2017 setembro
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V. Zh. Adibekyan, H. M. G. Silva, S. G. Sousa, N. C. Santos, E. Delgado Mena, A. A. Hakobyan
Mg/Si Mineralogical Ratio of Low-Mass Planet Hosts.
Correction for the NLTE Effects

Astrophysics, 60, 3, 325-332
2017 setembro
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S. Duffau, E. Caffau, L. Sbordone, P. Bonifacio, S. Andrievsky, S. A. Korotin, C. Babusiaux, S. Salvadori, L. Monaco, P. François et al. (including: S. G. Sousa)
The Gaia-ESO Survey: Galactic evolution of sulphur and zinc
Astronomy & Astrophysics, 604, A128
2017 agosto
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A. Miglio, C. Chiappini, B. Mosser, G. R. Davies, K. C. Freeman, L. Girardi, P. Jofré, D. Kawata, B. M. Rendle, M. Valentini et al. (including: P. P. Avelino, T. L. Campante, M. S. Cunha)
PLATO as it is: A legacy mission for Galactic archaeology
Astronomische Nachrichten, 338, 6, 18
2017 agosto
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H. P. Osborn, A. Santerne, S. C. C. Barros, N. C. Santos, X. Dumusque, L. Malavolta, D. J. Armstrong, S. Hojjatpanah, O. Demangeon, V. Zh. Adibekyan et al. (including: S. G. Sousa)
K2-110 b: a massive mini-Neptune exoplanet
Astronomy & Astrophysics, 604, A19
2017 julho
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A. A. Macias, V. Tudor, O. Vaduvescu, M. Predatu, A. Galad, S. Gajdos, H. F. Stevance, R. Errmann, J. Vilagi, E. Unda-Sanzana et al. (including: F. Lopez-Martinez)
The EURONEAR Lightcurve Survey of Near Earth Asteroids
Earth, Moon, and Planets, 120, 2, 60
2017 julho
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N. C. Santos, V. Zh. Adibekyan, P. Figueira, D. T. Andreasen, S. C. C. Barros, E. Delgado Mena, O. Demangeon, J. P. Faria, M. Oshagh, S. G. Sousa, P. T. P. Viana, A. C. S. Ferreira
Observational evidence for two distinct giant planet populations
Astronomy & Astrophysics, 603, A30
2017 julho
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L. Magrini, S. Randich, G. Kordopatis, I. Prandoni, D. Romano, A. C. Ffi, M. Limongi, P. Francois, E. Pancino, E. D. Friel et al. (including: S. G. Sousa)
The Gaia-ESO Survey: radial distribution of abundances in the Galactic disc from open clusters and young-field stars
Astronomy & Astrophysics, 603, A2
2017 julho
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N. Astudillo, T. Forveille, X. Bonfils, D. Segransan, F. Bouchy, X. Delfosse, C. Lovis, M. Mayor, F. Murgas, F. Pepe et al. (including: N. C. Santos)
The HARPS search for southern extra-solar planets
XLI. A dozen planets around the M dwarfs GJ 3138, GJ 3323, GJ 273, GJ 628, and GJ 3293

Astronomy & Astrophysics, 602, A88
2017 junho
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E. Pancino, D. Romano, B. Tang, G. Tautvai¨ienė, A. Casey, P. Gruyters, D. Geisler, I. San Roman, S. Randich, E. J. Alfaro et al. (including: S. G. Sousa)
The Gaia-ESO Survey
Mg-Al anti-correlation in iDR4 globular clusters

Astronomy & Astrophysics, 601, A112
2017 maio
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G. G. Sacco, L. Spina, S. Randich, F. Palla, R. J. Parker, R. D. Jeffries, R. J. Jackson, M. R. Meyer, M. Mapelli, A. C. Lanzafame et al. (including: S. G. Sousa)
The Gaia-ESO Survey: Structural and dynamical properties of the young cluster Chamaeleon I
Astronomy & Astrophysics, 601, A97
2017 maio
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V. Zh. Adibekyan, E. Delgado Mena, S. Feltzing, J. I. González Hernández, N. R. Hinkel, A. J. Korn, M. Asplund, P. G. Beck, M. Deal, B. Gustafsson et al.
Sun-like stars unlike the Sun: Clues for chemical anomalies of cool stars
Astronomische Nachrichten, 338, 4, 11
2017 maio
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L. Spina, S. Randich, L. Magrini, R. D. Jeffries, E. D. Friel, G. G. Sacco, E. Pancino, R. Bonito, L. Bravi, E. Franciosini et al. (including: S. G. Sousa)
The Gaia-ESO Survey: the present-day radial metallicity distribution of the Galactic disc probed by pre-main-sequence clusters
Astronomy & Astrophysics, 601, A70
2017 maio
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B. Tang, D. Geisler, E. D. Friel, S. Villanova, R. Smiljanic, A. Casey, S. Randich, L. Magrini, I. San Roman, A. M. Muñoz Arancibia et al. (including: S. G. Sousa, V. Zh. Adibekyan)
The Gaia-ESO survey: the inner disk intermediate-age open cluster NGC 6802
Astronomy & Astrophysics, 601, A56
2017 maio
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J. Rey, G. Hébrard, F. Bouchy, V. Bourrier, I. Boisse, N. C. Santos, L. Arnold, N. Astudillo, X. Bonfils, S. Borgniet et al. (including: O. Demangeon, A. Santerne)
The SOPHIE search for northern extrasolar planets XII.
Three giant planets suitable for astrometric mass determination with Gaia

Astronomy & Astrophysics, 601, A9
2017 maio
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J. Peralta, Y. J. Lee, R. Hueso, R. T. Clancy, B. J. Sandor, A. Sánchez-Lavega, E. Lellouch, M Rengel, P. Machado, M. Omino et al. (including: D. Luz)
Venus's winds and temperatures during the MESSENGER's flyby: An approximation to a three-dimensional instantaneous state of the atmosphere
Geophysical Research Letters, 44, 8, 9
2017 abril
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P. Jofré, U. Heiter, C. Worley, S. Blanco-Cuaresma, C. Soubiran, T. Masseron, K. Hawkins, V. Zh. Adibekyan, I. Buder, L. Casamiquela et al.
Gaia FGK benchmark stars: opening the black box of stellar element abundance determination
Astronomy & Astrophysics, 601, A38
2017 abril
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L. Malavolta, L. Borsato, V. Granata, G. Piotto, E. Lopez, A. Vanderburg, P. Figueira, A. Mortier, V. Nascimbeni, L. Affer et al.
The Kepler-19 System: A Thick-envelope Super-Earth with Two Neptune-mass Companions Characterized Using Radial Velocities and Transit Timing Variations
The Astronomical Journal, 153, 224, 14
2017 abril
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Leeuwen, A. Vallenari, C. Jordi, L. Lindegren, U. Bastian, T. Prusti, J. de Bruijne, A. G. A. Brown, C. Babusiaux, C. A. L. Bailer-Jones et al. (including: S. Antón)
Gaia Data Release 1
Open cluster astrometry: performance, limitations, and future prospects

Astronomy & Astrophysics, 601, A19
2017 abril
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J. A. Dittman, J. M. Irwin, D. Charbonneau, X. Bonfils, N. Astudillo, R. D. Haywood, Z. Berta-Thompson, E. R. Newton, J. Rodríguez, J. G. Winters et al. (including: N. C. Santos)
A temperate rocky super-Earth transiting a nearby cool star
Nature, 544, 4
2017 abril
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P. Viana Almeida, J. F. Gameiro, P. P. Petrov, C. Melo, N. C. Santos, P. Figueira, S. Alencar
Evidence of a substellar companion around a very young T Tauri star
Astronomy & Astrophysics, 600, A84
2017 abril
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D. T. Andreasen, S. G. Sousa, M. Tsantaki, G. D. C. Teixeira, A. Mortier, N. C. Santos, L. Suárez-Andrés, E. Delgado Mena, A. C. S. Ferreira
SWEET-Cat update and FASMA
A new minimization procedure for stellar parameters using high-quality spectra

Astronomy & Astrophysics, 600, A69
2017 abril
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P. Machado, T. Widemann, J. Peralta, R. Gonçalves, J.-F. Donati, D. Luz
Venus cloud-tracked and doppler velocimetry winds from CFHT/ESPaDOnS and Venus Express/VIRTIS in April 2014
Icarus, 285, 19
2017 março
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L. Suárez-Andrés, G. Israelian, J. I. González Hernández, V. Zh. Adibekyan, E. Delgado Mena, N. C. Santos, S. G. Sousa
CNO behaviour in planet-harbouring stars
II. Carbon abundances in stars with and without planets using the CH band

Astronomy & Astrophysics, 599, A96
2017 março
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D. J. Armstrong, D. Pollacco, A. Santerne
Transit shapes and self-organizing maps as a tool for ranking planetary candidates: application to Kepler and K2
Monthly Notices of the Royal Astronomical Society, 465, 3, 9
2017 março
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C. Lovis, I. A. G. Snellen, D. Mouillet, F. Pepe, F. Wildi, N. Astudillo-Defru, J.-L. Beuzit, X. Bonfils, A. Cheetham, U. Conod et al. (including: P. Figueira, J. H. C. Martins, N. C. Santos)
Atmospheric characterization of Proxima b by coupling the SPHERE high-contrast imager to the ESPRESSO spectrograph
Astronomy & Astrophysics, 599, A16
2017 março
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K. W. F. Lam, F. Faedi, D. J. A. Brown, D. R. Anderson, L. Delrez, M. Gillon, G. Hébrard, M. Lendl, L. Mancini, J. Southworth et al. (including: S. C. C. Barros)
From dense hot Jupiter to low-density Neptune: The discovery of WASP-127b, WASP-136b, and WASP-138b
Astronomy & Astrophysics, 599, A3
2017 março
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A. R. G. Santos, M. S. Cunha, P. P. Avelino, R. A. García, S. Mathur
Starspot signature on the light curve
Learning about the latitudinal distribution of spots

Astronomy & Astrophysics, 599, A1
2017 fevereiro
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A. R. G. Santos, M. S. Cunha, P. P. Avelino, W. J. Chaplin, T. L. Campante
A thorough analysis of the short- and mid-term activity-related variations in the solar acoustic frequencies
Monthly Notices of the Royal Astronomical Society, 464, 4, 4408-4414
2017 fevereiro
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E. Pancino, C. Lardo, G. Altavilla, S. Marinoni, S. Ragaini, G. Cocozza, M. Bellazzini, E. Sabbi, M. Zoccali, P. Donati et al. (including: S. G. Sousa)
The Gaia-ESO Survey: Calibration strategy
Astronomy & Astrophysics, 598, A5
2017 fevereiro
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J. Overbeek, E. D. Friel, P. Donati, R. Smiljanic, H. R. Jacobson, D. Hatzidimitriou, E. V. Held, L. Magrini, A. Bragaglia, S. Randich et al. (including: S. G. Sousa)
The Gaia-ESO Survey: the inner disk, intermediate-age open cluster Trumpler 23
Astronomy & Astrophysics, 598, A68
2017 fevereiro
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A. Suárez Mascareño, J. I. González Hernández, R. Rebolo López, N. Astudillo-Defru, X. Bonfils, F. Bouchy, X. Delfosse, T. Forveille, C. Lovis, M. Mayor et al. (including: N. C. Santos)
A super-Earth orbiting the nearby M dwarf GJ 536
Astronomy & Astrophysics, 597, A108
2017 janeiro
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D. Bayliss, S. Hojjatpanah, A. Santerne, D. Dragomir, G. Zhou, A. Shporer, K. D. Colón, J. -M. Almenara, D. J. Armstrong, D. Barrado et al. (including: S. C. C. Barros, O. Demangeon, N. C. Santos, S. G. Sousa, M. Tsantaki)
EPIC 201702477b: A Transiting Brown Dwarf from K2 in a 41 day Orbit
The Astronomical Journal, 153, 1
2017 janeiro
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Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia