Exoplanets and Astrobiology

    General
    Description

    The search for life in the universe has been driven by recent discoveries of planets around other stars (known as exoplanets), becoming one of the most active fields in modern astrophysics. The growing number of new exoplanets discovered in recent years and the recent advance on the study of their atmospheres are not only providing new valuable information about its physical properties, but also allowing to constrain the properties of the Solar system's planets within a more global context. The field is approaching to the important discovery of the first potentially habitable planets and encouraging more detailed studies of them. With the launching of upcoming related satellites like JWST, CHEOPS, TESS, ARIEL and PLATO, the exoplanets field faces a bright future.

    It is for this reason that this field is aid of, and at the same time promotes, the development of increasingly sensitive and stable instrumentation for both, ground-based telescopes and space missions. Our group is particularly prepared for these two fronts. On the one hand, during the last years we have developed observational and reduction techniques of exoplanet transits data for the ORM telescopes, ours being one of the most productive groups in the exploitation of GTC. On the other hand, all ESA space missions (present and future) related to exoplanets have one or more components of the project as CoIs. Within the frame of this project, we intend that IAC researchers maintain an advantageous position regarding the operation of OSIRIS and CanariCam, first light

    GTC's instruments, and participate in the construction, commissioning and operation of new instruments such as the high resolution optical spectrograph HORUS at GTC. The exploitation of the photometry and spectroscopy of transits with LIRIS at WHT is also one of our principal interests, especially in preparation for the installation in 2015 of EMIR on the GTC .

    To summarize, the project "Exoplanets and Astrobiology" will focus on these four action lines:

    1) The characterization of atmospheric and physical properties of exoplanets (GTC, WHT, ARIEL, HARPSN, CARMENES, ESPRESSO, etc. ..)

    2) The search and confirmation of exoplanets by transits techniques (CoRoT, Kepler, K2, CHEOPS, XO, LCOGT, W FC, DISH, etc. ..)

    3) The search and confirmation of exoplanet by radial velocity techniques (HARPSN, HORUS, LCOGT, SONG, CARMENES)

    4) Astrobiology

    Principal investigator
    Project staff
    1. Detection of He in the atmosphere of an exoplanet from the ground, published in Science
    2. Detection of a super-earth around Barnard star, published in Nature
    3. Detection of the first TESS planets, with several papers of high relevance
    4. Discovery of Na and Halpha features in the spectrum of KELT-20b with TNG
    5. Publication of the Handbook of Exoplanets, the most extensive work of reference in the field of exoplanets. The Handbook was edited by members of our group, and includes contributions by about 300 experts worldwide, including 12 members of IAC.

    Related publications

    TOI-4860 b, a short-period giant planet transiting an M3.5 dwarf 2024A&A...683A.166A
    TOI-2266 b: A keystone super-Earth at the edge of the M dwarf radius valley 2024A&A...683A.170P
    CARMENES input catalog of M dwarfs. VII. New rotation periods for the survey stars and their correlations with stellar activity 2024A&A...684A...9S
    Pre-perihelion monitoring of interstellar comet 2I/Borisov 2024MNRAS.529.3521P
    Evidence for transit-timing variations of the 11 Myr exoplanet TOI-1227 b 2024A&A...683A..96A
    The elusive atmosphere of WASP-12 b. High-resolution transmission spectroscopy with CARMENES 2024A&A...683A..67C
    Sulfur dioxide in the mid-infrared transmission spectrum of WASP-39b 2024Natur.626..979P
    Fundamental physics with ESPRESSO: a new determination of the D/H ratio towards PKS1937-101 2024MNRAS.529..839G
    TOI-544 b: a potential water-world inside the radius valley in a two-planet system 2024MNRAS.52711138O
    Ground-based photometric follow-up for exoplanet detections with the PLATO mission 2024CoSka..54b.142D
    Confirmation of a Sub-Saturn-size Transiting Exoplanet Orbiting a G Dwarf: TOI-1194 b and a Very Low Mass Companion Star: TOI-1251 B from TESS 2024RAA....24c5012W
    CHEOPS observations of KELT-20 b/MASCARA-2 b: An aligned orbit and signs of variability from a reflective day side 2024A&A...683A...1S
    The EBLM Project- XI. Mass, radius, and effective temperature measurements for 23 M-dwarf companions to solar-type stars observed with CHEOPS 2024MNRAS.528.5703S
    The GAPS programme at TNG. L. TOI-4515 b: An eccentric warm Jupiter orbiting a 1.2 Gyr-old G-star 2024A&A...682A.135C
    The GAPS programme at TNG. XLIX. TOI-5398, the youngest compact multi-planet system composed of an inner sub-Neptune and an outer warm Saturn 2024A&A...682A.129M
    Confirmation of TiO absorption and tentative detection of MgH and CrH in the atmosphere of HAT-P-41b 2024A&A...682A..73J
    Dynamical Architectures of S-type Transiting Planets in Binaries. I. Target Selection Using Hipparcos and Gaia Proper Motion Anomalies 2024AJ....167...89Z
    Constraining the reflective properties of WASP-178 b using CHEOPS photometry 2024A&A...682A.102P
    Characterising TOI-732 b and c: New insights into the M-dwarf radius and density valley 2024A&A...682A..66B
    An ESPRESSO view of the HD 189733 system. Broadband transmission spectrum, differential rotation, and system architecture 2024A&A...682A..28C
    The TESS-Keck Survey. XVII. Precise Mass Measurements in a Young, High-multiplicity Transiting Planet System Using Radial Velocities and Transit Timing Variations 2024AJ....167...70B
    Simultaneous multicolour transit photometry of hot Jupiters HAT-P-19b, HAT-P-51b, HAT-P-55b, and HAT-P-65b 2024MNRAS.528.1930K
    Masses, revised radii, and a third planet candidate in the 'Inverted' planetary system around TOI-1266 2024MNRAS.527.5464C
    TOI-5126: a hot super-Neptune and warm Neptune pair discovered by TESS and CHEOPS 2024MNRAS.527.8768F
    SPRIGHT: a probabilistic mass-density-radius relation for small planets 2024MNRAS.527.5693P
    Two mini-Neptunes transiting the adolescent K-star HIP 113103 confirmed with TESS and CHEOPS 2024MNRAS.527.1146L
    A 1.55 R<SUB>⊕</SUB> habitable-zone planet hosted by TOI-715, an M4 star near the ecliptic South Pole 2024MNRAS.527...35D
    The CARMENES search for exoplanets around M dwarfs. Telluric absorption corrected high S/N optical and near-infrared template spectra of 382 M dwarf stars 2023A&A...680A..73N
    No random transits in CHEOPS observations of HD 139139 2023A&A...680A..78A
    TOI-1801 b: A temperate mini-Neptune around a young M0.5 dwarf 2023A&A...680A..76M
    Planetary companions orbiting the M dwarfs GJ 724 and GJ 3988. A CARMENES and IRD collaboration 2023A&A...680A..28G
    Photometric follow-up of the 20 Myr old multi-planet host star V1298 Tau with CHEOPS and ground-based telescopes 2023A&A...680A...8D
    Evidence for Low-level Dynamical Excitation in Near-resonant Exoplanet Systems 2023AJ....166..266R
    Stellar spectral-type (mass) dependence of the dearth of close-in planets around fast-rotating stars. Architecture of Kepler confirmed single-exoplanet systems compared to star-planet evolution models 2023A&A...679L..12G
    A resonant sextuplet of sub-Neptunes transiting the bright star HD 110067 2023Natur.623..932L
    The GAPS programme at TNG. XLVIII. The unusual formation history of V1298 Tau 2023A&A...679A..55T
    Workshop Summary: Exoplanet Orbits and Dynamics 2023PASP..135j6001M
    Measuring small-scale magnetic fields of 44 M dwarfs from SPIRou spectra with ZeeTurbo 2023MNRAS.526.5648C
    Refining the properties of the TOI-178 system with CHEOPS and TESS 2023A&A...678A.200D
    A compact multi-planet system transiting HIP 29442 (TOI-469) discovered by TESS and ESPRESSO. Radial velocities lead to the detection of transits with low signal-to-noise ratio 2023A&A...679A..33D

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    Eva Villaver, winner of the Spanish Geographical Society Research Award 2023
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    ESPRESSO and CARMENES discover two potentially habitable exo-Earths around a star near the Sun
    James Webb telescope reveals an exoplanet atmosphere as never seen before
    Heaviest element yet detected in an exoplanet atmosphere
    Astronomers discover a planetary system with three super-Earths and two super-Mercuries
    A study shows that “water worlds” could be as common as Earths
    Gliese 486 b: a Rosetta stone for the study of exoplanets
    Two new rocky planets in the solar neighborhood
    Astronomers discover a four-planet system with a peculiar migration process
    A sub-Earth confirmed in the planetary system of the closest star to the Sun
    Astronomers discover an ultra-light and super-fast sub-Earth orbiting a red dwarf
    Study reveals that giant planets could reach "maturity" much earlier than previously thought
    IAC80 telescope detects faint transit of exoplanet WASP-156b
    A study offers new prospects for finding life outside the Earth
    A new super-Earth detected orbiting a red dwarf star
    Astronomers discover a surprising system of six exoplanets which orbit rhythmically
    Sucessful test of new technology which should help to discover “other Earths”
    Astronomers find a nearby system of exoplanets with a potentially inhabitable world
    ESPRESSO has its first light on the four telescopes of the VLT at the same time
    SARA SEAGER: “En 10 años tendremos la capacidad de encontrar vida en un exoplaneta”