384 citations · 2.6k across the 37 of their papers we have counts for
37 papers
Enabling the sustainable space era by developing the infrastructure for a space economy
Guillem Anglada-Escudé
The world is changing fast, and so is the space sector. Planning for large scientific experiments two decades ahead may no longer be the most sensible approach. I develop the argum…
The CARMENES search for exoplanets around M dwarfs: Spectroscopic orbits of nine M-dwarf multiple systems, including two triples, two brown dwarf candidates, and one close M-dwarf-white dwarf binary
D. Baroch, J. C. Morales, I. Ribas +33
M dwarfs are ideal targets for the search of Earth-size planets in the habitable zone using the radial velocity method, attracting the attention of many ongoing surveys. As a by-pr…
Mass and density of the transiting hot and rocky super-Earth LHS 1478 b (TOI-1640 b)
M. G. Soto, G. Anglada-Escudé, S. Dreizler +52
One of the main objectives of the Transiting Exoplanet Survey Satellite ({TESS}) mission is the discovery of small rocky planets around relatively bright nearby stars. Here, we rep…
Monitoring the radio emission of Proxima Centauri
Miguel Pérez-Torres, José Francisco Gómez, José Luis Ortiz +15
We present results from the most comprehensive radio monitoring campaign towards the closest star to our Sun, Proxima Centauri. We report 1.1 to 3.1 GHz observations with the Austr…
Auto-correlation functions of astrophysical processes, and their relation to Gaussian processes; Application to radial velocities of different starspot configurations
Manuel Perger, Guillem Anglada-Escudé, Ignasi Ribas +3
Accounting for the effects of stellar magnetic phenomena is indispensable to fully exploit radial velocities (RVs). Correlated time variations are often mitigated by Gaussian proce…
Low-cost precursor of an interstellar mission
René Heller, Guillem Anglada-Escudé, Michael Hippke +1
The solar photon pressure provides a viable source of thrust for spacecraft in the solar system. Theoretically it could also enable interstellar missions, but an extremely small ma…
HiFLEx -- a highly flexible package to reduce cross-dispersed echelle spectra
Ronny Errmann, Neil Cook, Guillem Anglada-Escudé +8
We describe a flexible data reduction package for high resolution cross-dispersed echelle data. This open-source package is developed in Python and includes optional GUIs for most…
LHS 1815b: The First Thick-Disk Planet Detected By TESS
Tianjun Gan, Avi Shporer, John H. Livingston +35
We report the first discovery of a thick-disk planet, LHS 1815b (TOI-704b, TIC 260004324), detected in the TESS survey. LHS 1815b transits a bright (V = 12.19 mag, K = 7.99 mag) an…
Dispersed Matter Planet Project Discoveries of Ablating Planets Orbiting Nearby Bright Stars
Carole A. Haswell, Daniel Staab, John R. Barnes +6
Some highly irradiated close-in exoplanets orbit stars showing anomalously low stellar chromospheric emission. We attribute this to absorption by circumstellar gas replenished by m…
An ablating super-Earth in an eccentric binary from the Dispersed Matter Planet Project
John R. Barnes, Carole A. Haswell, Daniel Staab +8
Earth mass exoplanets are difficult to detect. The Dispersed Matter Planet Project (DMPP) identifies stars which are likely to host the most detectable low mass exoplanets. The sta…
Detection of the nearest Jupiter analog in radial velocity and astrometry data
Fabo Feng, Guillem Anglada-Escudé, Mikko Tuomi +4
The presence of Jupiter is crucial to the architecture of the Solar System and models underline this to be a generic feature of planetary systems. We find the detection of the diff…
A giant exoplanet orbiting a very low-mass star challenges planet formation models
J. C. Morales, A. J. Mustill, I. Ribas +179
Statistical analyses from exoplanet surveys around low-mass stars indicate that super-Earth and Neptune-mass planets are more frequent than gas giants around such stars, in agreeme…
Water vapor detection in the transmission spectra of HD 209458 b with the CARMENES NIR channel
A. Sánchez-López, F. J. Alonso-Floriano, M. López-Puertas +31
Aims: We aim at detecting HO in the atmosphere of the hot Jupiter HD 209458 b and perform a multi-band study in the near infrared with CARMENES. Methods: The HO absorption…
Frequency of planets orbiting M dwarfs in the Solar neighbourhood
M. Tuomi, H. R. A. Jones, R. P. Butler +14
The most abundant stars in the Galaxy, M dwarfs, are very commonly hosts to diverse systems of low-mass planets. Their abundancy implies that the general occurrence rate of planets…
Proxima Centauri b is not a transiting exoplanet
James S. Jenkins, Joseph Harrington, Ryan C. Challener +19
We report Spitzer Space Telescope observations during predicted transits of the exoplanet Proxima Centauri b. As the nearest terrestrial habitable-zone planet we will ever discover…
Stellar activity analysis of Barnard's Star: Very slow rotation and evidence for long-term activity cycle
B. Toledo-Padrón, J. I. González Hernández, C. Rodríguez-López +58
The search for Earth-like planets around late-type stars using ultra-stable spectrographs requires a very precise characterization of the stellar activity and the magnetic cycle of…
A candidate super-Earth planet orbiting near the snow line of Barnard's star
I. Ribas, M. Tuomi, A. Reiners +60
At a distance of 1.8 parsecs, Barnard's star (Gl 699) is a red dwarf with the largest apparent motion of any known stellar object. It is the closest single star to the Sun, second…
Prospects for detecting the astrometric signature of Barnard's Star b
Lev Tal-Or, Shay Zucker, Ignasi Ribas +2
A low-amplitude periodic signal in the radial velocity (RV) time series of Barnard's Star was recently attributed to a planetary companion with a minimum mass of 3.2 $M_\op…
The CARMENES search for exoplanets around M dwarfs: A low-mass planet in the temperate zone of the nearby K2-18
Paula Sarkis, Thomas Henning, Martin Kürster +22
K2-18 is a nearby M2.5 dwarf, located at 34 pc and hosting a transiting planet which was first discovered by the {\it K2} mission and later confirmed with {\it Spitzer Space Telesc…
AD Leonis: Radial velocity signal of stellar rotation or spin-orbit resonance?
Mikko Tuomi, Hugh R. A. Jones, Guillem Anglada-Escudé +3
AD Leonis is a nearby magnetically active M dwarf. We find Doppler variability with a period of 2.23 days as well as photometric signals: (1) a short period signal which is similar…
High-cadence spectroscopy of M-dwarfs - II. Searching for stellar pulsations with HARPS
Zaira M. Berdiñas, Cristina Rodríguez-López, Pedro J. Amado +5
Stellar oscillations appear all across the Hertzsprung-Russell diagram. Recent theoretical studies support their existence also in the atmospheres of M dwarfs. These studies predic…
The habitability of Proxima Centauri b II. Possible climates and Observability
Martin Turbet, Jeremy Leconte, Franck Selsis +5
Radial velocity monitoring has found the signature of a ~M planet located within the Habitable Zone (HZ) of Proxima Centauri \citep{Anglada16}. Despite a h…
The Kapteyn moving group is not tidal debris from Centauri
Camila Navarrete, Julio Chanamé, Iván Ramírez +3
The Kapteyn moving group has been postulated as tidal debris from Centauri. If true, members of the group should show some of the chemical abundance patterns known for stars in…
A New Merging Double Degenerate Binary in the Solar Neighborhood
John H. Debes, Mukremin Kilic, Pier-Emmanuel Tremblay +5
Characterizing the local space density of double degenerate binary systems is a complementary approach to broad sky surveys of double degenerates to determine the expected rates of…