924 citations · 8.7k across the 152 of their papers we have counts for
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Search for planets around stars with wide brown dwarfs
J. Šubjak, N. Lodieu, P. Kabáth +6
Aims. The project aims to understand better the role of wide brown dwarf companions on planetary systems. Methods. We obtained high-resolution spectra of six bright stars with co-m…
The CARMENES search for exoplanets around M dwarfs. Variability on long timescales as seen in chromospheric indicators
B. Fuhrmeister, S. Czesla, V. Perdelwitz +19
It is clearly established that the Sun has an 11-year cycle that is caused by its internal magnetic field. This cycle is also observed in a sample of M dwarfs. In the framework of…
Espresso observations of HE 01075240 and other CEMP-no stars with
D. Aguado, P. Molaro, E. Caffau +22
HE 01075240 is a hyper metal-poor star with . We performed high-res observations with the ESPRESSO spectrograph at the VLT to constrain the kinematical propert…
Automatic model-based telluric correction for the ESPRESSO data reduction software. Model description and application to radial velocity computation
R. Allart, C. Lovis, J. Faria +21
Ground-based high-resolution spectrographs are key instruments for several astrophysical domains. Unfortunately, the observed spectra are contaminated by the Earth's atmosphere. Wh…
Precise mass determination for the keystone sub-Neptune planet transiting the mid-type M dwarf G 9-40
R. Luque, G. Nowak, T. Hirano +45
Context. Despite being a prominent subset of the exoplanet population discovered in the past three decades, the nature and provenance of sub-Neptune-sized planets are still one of…
Physical properties and trigonometric distance of the peculiar dwarf WISE J181005.5101002.3
N. Lodieu, M. R. Zapatero Osorio, E. L. Martin +2
Our goal is to characterise the physical properties of the metal-poor brown dwarf population. In particular, we focus on the recently discovered peculiar dwarf WISE J18100551010…
HORuS transmission spectroscopy and revised planetary parameters of KELT-7b
H. M. Tabernero, M. R. Zapatero Osorio, C. Allende Prieto +7
We report on the high-resolution spectroscopic observations of two planetary transits of the hot Jupiter KELT-7b ( 1.28 0.17 M, 20…
A hot sub-Neptune in the desert and a temperate super-Earth around faint M dwarfs: Color validation of TOI-4479b and TOI-2081b
E. Esparza-Borges, H. Parviainen, F. Murgas +45
We report the discovery and validation of two TESS exoplanets orbiting faint M dwarfs: TOI-4479b and TOI-2081b. We have jointly analyzed space (TESS mission) and ground based (MuSC…
A detailed analysis of the Gl 486 planetary system
J. A. Caballero, E. Gonzalez-Alvarez, M. Brady +64
The Gl 486 system consists of a very nearby, relatively bright, weakly active M3.5 V star at just 8 pc with a warm transiting rocky planet of about 1.3 R_Terra and 3.0 M_Terra that…
Transmission spectroscopy of MASCARA-1b with ESPRESSO: Challenges of overlapping orbital and Doppler tracks
N. Casasayas-Barris, F. Borsa, E. Pallé +32
Atmospheric studies at high spectral resolution have shown the presence of molecules, neutral and ionised metals, and hydrogen in the transmission spectrum of ultra-hot Jupiters, a…
Fundamental physics with ESPRESSO: Constraints on Bekenstein and dark energy models from astrophysical and local probes
C. J. A. P. Martins, S. Cristiani, G. Cupani +21
Dynamical scalar fields in an effective four-dimensional field theory are naturally expected to couple to the rest of the theory's degrees of freedom, unless some new symmetry is p…
A novel framework for semi-Bayesian radial velocities through template matching
A. M. Silva, J. P. Faria, N. C. Santos +28
The detection and characterization of an increasing variety of exoplanets has been in part possible thanks to the continuous development of high-resolution, stable spectrographs, a…
A quarter century of spectroscopic monitoring of the nearby M dwarf Gl 514. A super-Earth on an eccentric orbit moving in and out of the habitable zone
M. Damasso, M. Perger, J. M. Almenara +31
We investigated the presence of planetary companions around the nearby (7.6 pc) and bright ( mag) early-type M dwarf Gl 514, analysing 540 radial velocities collected over nea…
The HD 260655 system: Two rocky worlds transiting a bright M dwarf at 10 pc
R. Luque, B. J. Fulton, M. Kunimoto +64
We report the discovery of a multi-planetary system transiting the M0 V dwarf HD 260655 (GJ 239, TOI-4599). The system consists of at least two transiting planets, namely HD 260655…
The CARMENES search for exoplanets around M dwarfs: Two Saturn-mass planets orbiting active stars
A. Quirrenbach, V. M. Passegger, T. Trifonov +26
The CARMENES radial-velocity survey is currently searching for planets in a sample of 387 M dwarfs. Here we report on two Saturn-mass planets orbiting TYC 2187-512-1 ($M_\star = 0.…
The polar orbit of the warm Neptune GJ436b seen with VLT/ESPRESSO
V. Bourrier, M. R. Zapatero Osorio, R. Allart +24
GJ436b might be the prototype of warm Neptunes that have undergone late migration induced by an outer companion. Precise determination of the orbital architecture of such systems i…