Centro de Astrofísica U.Porto

Biographic notes
Main research interests include the search for Extrasolar planets using radial-velocity and transit techniques, the study of the statistical properties of extrasolar planets and their host stars, and the use of high resolution stellar spectroscopy for the determination of stellar atmospheric parameters and abundances in solar-type stars. In this context I am the national Co-PI of the ESPRESSO project for a new high resolution ultra-stable spectrograph for the VLT, and board member of the CHEOPS/ESA mission.

Other interests include the study of low mass star formation (in the near-IR), stellar multiplicity in young stars, and the chemical properties of star forming regions.

Lastest publications at CAUP/IA

C. Cadieux, M. Plotnykov, R. Doyon, D. Valencia, F. Jahandar, L. Dang, M. Turbet, T. J. Fauchez, R. Cloutier, C. Cherubim et al. (including: S. C. C. Barros, E. Delgado-Mena, N. C. Santos), 2024,
New Mass and Radius Constraints on the LHS 1140 Planets: LHS 1140 b Is either a Temperate Mini-Neptune or a Water World,
The Astrophysical Journal Letters, 960, 31
>> Abstract

L. F. Pereira, S. K. Grunblatt, A. Psaridi, T. L. Campante, M. S. Cunha, N. C. Santos, D. Bossini, D. Thorngren, C. Hellier, F. Bouchy, 2024,
TESS giants transiting giants V – two hot Jupiters orbiting red giant hosts,
Monthly Notices of the Royal Astronomical Society, 527, 13
>> Abstract

R. Alonso, S. Hoyer, M. Deleuil, A. E. Simon, M. Beck, W. Benz, H.-G. Florén, P. Guterman, L. Borsato, A. Brandeker et al. (including: S. C. C. Barros, O. D. S. Demangeon, N. C. Santos, S. G. Sousa), 2023,
No random transits in CHEOPS observations of HD 139139,
Astronomy & Astrophysics, 680, 7
>> Abstract

E. Martioli, G. Hébrard, Leandro de Almeida, N. Heidari, D. Lorenzo-Oliveira, F. Kiefer, J. -M. Almenara, A. Bieryla, I. Boisse, X. Bonfils et al. (including: O. D. S. Demangeon, N. C. Santos, S. G. Sousa), 2023,
TOI-1736 and TOI-2141: Two systems including sub-Neptunes around solar analogs revealed by TESS and SOPHIE,
Astronomy & Astrophysics, 680, 36
>> Abstract

R. Luque, H. P. Osborn, A. Leleu, E. Pallé, A. Bonfanti, O. Barragán, T. G. Wilson, C. Broeg, A. C. Cameron, M. Lendl et al. (including: V. Zh. Adibekyan, S. C. C. Barros, O. D. S. Demangeon, N. C. Santos, S. G. Sousa), 2023,
A resonant sextuplet of sub-Neptunes transiting the bright star HD 110067,
Nature, 623, 5
>> Abstract

E. Delgado Mena, J. Gomes da Silva, J. P. Faria, N. C. Santos, J. H. C. Martins, M. Tsantaki, A. M. J. Mortier, S. G. Sousa, C. Lovis, 2023,
Planets around evolved intermediate-mass stars. III. Planet candidates and long-term activity signals in six open clusters,
Astronomy & Astrophysics, 679, 21
>> Abstract