activity
20102026
most citedThe 10 parsec sample in the Gaia era

138 citations · 633 across the 17 of their papers we have counts for

collaborators

17 papers

astro-ph.SR2026

Multiplicity of Cool Stars and their Evolution

Matthew I. Swayne, Leen Decin, Theo Khouri +12

Making up a sizeable portion of the galactic census, stellar multiples are experiencing a renaissance. Enabling the study of multiple strands of the study of cool stars, stellar mu…

astro-ph.EP2026

Assessing the Climate and Habitability of Tidally Locked Rocky Exoplanets

Erica Bisesi, Giuseppe Murante, Jost von Hardenberg +5

Tidally locked exoplanets orbiting M dwarf stars are prime targets in the search for habitable worlds, yet their complex climate dynamics challenge conventional models of habitabil…

astro-ph.IM2026

Early Exploration of the Scientific Discovery Space for the Habitable Worlds Observatory

Courtney D. Dressing, Danica Adams, Evelyne Alecian +324

The Habitable Worlds Observatory (HWO) is a future NASA flagship mission concept identified by the Astro2020 Decadal Survey as the highest priority for large space missions. HWO sh…

astro-ph.IM2026

A Critical UV Legacy: A Hubble Roadmap for HWO Science Readiness

Sarah Peacock, Aiden S. Zelakewicz, Lisa Kaltenegger +14

The Habitable Worlds Observatory (HWO) will provide the first opportunity to directly image and spectrally characterize terrestrial exoplanets in the habitable zones of nearby star…

astro-ph.SR2026

HWO Target Stars and Systems: Activity and Rotation Catalog (ARC) of Potential Target Stars for the Habitable Worlds Observatory

Tara Fetherolf, Arvind F. Gupta, Elisabeth R. Newton +7

A major goal of the Habitable Worlds Observatory (HWO) is to precisely characterize exoplanets and their atmospheres. However, magnetic activity from an exoplanet's host star can c…

astro-ph.SR2021★ 138 cited

The 10 parsec sample in the Gaia era

Céline Reylé, Kevin Jardine, Pascal Fouqué +3

The nearest stars provide a fundamental constraint for our understanding of stellar physics and the Galaxy. The nearby sample serves as an anchor where all objects can be seen and…

astro-ph.SR2020★ 7 cited

The CARMENES search for exoplanets around M dwarfs. The He I infrared triplet lines in PHOENIX models of M2-3 V stars

D. Hintz, B. Fuhrmeister, S. Czesla +25

The He I infrared (IR) line at a vacuum wavelength of 10833 A is a diagnostic for the investigation of atmospheres of stars and planets orbiting them. For the first time, we study…

astro-ph.EP2020★ 46 cited

Precise mass and radius of a transiting super-Earth planet orbiting the M dwarf TOI-1235: a planet in the radius gap?

P. Bluhm, R. Luque, N. Espinoza +78

We report the confirmation of a transiting planet around the bright, inactive M0.5 V star TOI-1235 (TYC 4384-1735-1, V = 11.5 mag), whose transit signal was detected in the photome…

astro-ph.EP2020★ 19 cited

The CARMENES search for exoplanets around M dwarfs. A super-Earth planet orbiting HD 79211 (GJ 338 B)

E. González-Álvarez, M. R. Zapatero Osorio, J. A. Caballero +27

We report on radial velocity time series for two M0.0V stars, GJ338B and GJ338A, using the CARMENES spectrograph, complemented by ground-telescope photometry from Las Cumbres and S…

astro-ph.EP2019★ 130 cited

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…

astro-ph.EP2019★ 108 cited

He I 10830 Å in the transmission spectrum of HD 209458 b

F. J. Alonso-Floriano, I. A. G. Snellen, S. Czesla +27

Context: Recently, the He I triplet at 10830 Å has been rediscovered as an excellent probe of the extended and possibly evaporating atmospheres of close-in transiting planets. This…

astro-ph.EP2019★ 129 cited

Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization

R. Luque, E. Pallé, D. Kossakowski +73

We report the detection of a transiting Earth-size planet around GJ 357, a nearby M2.5V star, using data from the Transiting Exoplanet Survey Satellite (TESS). GJ 357 b (TOI-562.01…

astro-ph.EP2018★ 37 cited

The CARMENES search for exoplanets around M dwarfs: The warm super-Earths in twin orbits around the mid-type M dwarfs Ross 1020 (GJ 3779) and LP 819-052 (GJ 1265)

R. Luque, G. Nowak, E. Pallé +27

We announce the discovery of two planetary companions orbiting around the low mass stars Ross 1020 (GJ 3779, M4.0V) and LP 819-052 (GJ 1265, M4.5V). The discovery is based on the a…

astro-ph.SR2017★ 9 cited

A TGAS/Gaia DR1 parallactic distance to the sigma Orionis cluster

J. A. Caballero

With the new Tycho-Gaia Astrometric Solution, I derive a new parallactic distance to the young sigma Orionis open cluster, which is a cornerstone region for studying the formation…

astro-ph.SR2014

Gaia and brown dwarfs from Spain

J. A. Caballero

Gaia will not observe 50000 brown dwarfs, but about 100 times less. However, these <~ 500 brown dwarfs will be benchmarks for many substellar topics. It is possible to identify the…

astro-ph.GA2012

Cool dwarfs in wide multiple systems. Paper 3: Two common-proper-motion, late-type stars separated by over 11 arcmin

J. A. Caballero, J. Genebriera, F. X. Miret +2

LP 209-28 and LP 209-27 have similar proper motions as tabulated by several catalogues. Using seven astrometric epochs spanning 59 years, we confirm a common tangential velocity by…

astro-ph.SR2010★ 10 cited

Identification of blue high proper motion objects in the Tycho-2 and 2MASS catalogues using Virtual Observatory tools

F. M. Jiménez-Esteban, J. A. Caballero, E. Solano

With available Virtual Observatory tools, we looked for new bright blue high proper motion objects in the entire sky: white dwarfs, hot subdwarfs, runaway OB stars, and early-type…