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
    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

    HR 10 as seen by CHEOPS and TESS: Revealing δ Scuti pulsations, granulation-like signal and hint for transients 2024A&A...690A..73S
    A sub-Earth-mass planet orbiting Barnard's star 2024A&A...690A..79G
    Low abundances of TiO and VO on the dayside of KELT-9 b: Insights from ground-based photometric observations 2024PASJ...76.1131H
    Validation of up to seven TESS planet candidates through multi-colour transit photometry using MuSCAT2 data 2024A&A...690A..62P
    The Gaia ultracool dwarf sample-IV. GTC/OSIRIS optical spectra of Gaia late-M and L dwarfs 2024MNRAS.534..695C
    Mass determination of two Jupiter-sized planets orbiting slightly evolved stars: TOI-2420 b and TOI-2485 b 2024A&A...690A..18C
    Isotopic abundance of carbon in the DLA towards QSO B1331+170 2024MNRAS.534...12M
    Revisiting the dynamical masses of the transiting planets in the young AU Mic system: Potential AU Mic b inflation at 20 Myr 2024A&A...689A.132M
    The MOPYS project: A survey of 70 planets in search of extended He I and H atmospheres: No evidence of enhanced evaporation in young planets 2024A&A...689A.179O
    Photo-dynamical characterisation of the TOI-178 resonant chain. Exploring the robustness of transit-timing variations and radial velocity mass characterisations 2024A&A...688A.211L
    TOI-2379 b and TOI-2384 b: two super-Jupiter mass planets transiting low-mass host stars 2024MNRAS.533.3893B
    Characterisation of the warm-Jupiter TOI-1130 system with CHEOPS and a photo-dynamical approach 2024A&A...689A..52B
    The atmospheric composition of the ultra-hot Jupiter WASP-178 b observed with ESPRESSO 2024A&A...689A..54D
    ESPRESSO reveals blueshifted neutral iron emission lines on the dayside of WASP-76 b 2024A&A...689A...8C
    Inhomogeneous terminators on the exoplanet WASP-39 b 2024Natur.632.1017E
    Unveiling the internal structure and formation history of the three planets transiting HIP 29442 (TOI-469) with CHEOPS 2024A&A...688A.223E
    Climate change in hell: Long-term variation in transits of the evaporating planet K2-22b 2024A&A...688L..34G
    Three super-Earths and a possible water world from TESS and ESPRESSO 2024A&A...688A.216H
    Kilonova Seekers: the GOTO project for real-time citizen science in time-domain astrophysics 2024MNRAS.533.2113K
    Primeval very low-mass stars and brown dwarfs - VIII. The first age benchmark L subdwarf, a wide companion to a halo white dwarf 2024MNRAS.533.1654Z
    The CARMENES search for exoplanets around M dwarfs. Revisiting the GJ 581 multi-planetary system with new Doppler measurements from CARMENES, HARPS, and HIRES 2024A&A...688A.112V
    TOI-1408: Discovery and Photodynamical Modeling of a Small Inner Companion to a Hot Jupiter Revealed by Transit Timing Variations 2024ApJ...971L..28K
    A hot-Jupiter progenitor on a super-eccentric retrograde orbit 2024Natur.632...50G
    TOI-757 b: an eccentric transiting mini-Neptune on a 17.5-d orbit 2024MNRAS.533....1A
    An Earth-sized Planet on the Verge of Tidal Disruption 2024AJ....168..101D
    Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b 2024NatAs...8..879B
    CHEOPS in-flight performance. A comprehensive look at the first 3.5 yr of operations 2024A&A...687A.302F
    Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3 2024NatAs...8..865G
    Three short-period Earth-sized planets around M dwarfs discovered by TESS: TOI-5720 b, TOI-6008 b, and TOI-6086 b 2024A&A...687A.264B
    Detection of Fe and Ti on the dayside of the ultrahot Jupiter MASCARA-1b with CARMENES 2024A&A...687A.103G
    TOI-4336 A b: A temperate sub-Neptune ripe for atmospheric characterization in a nearby triple M-dwarf system 2024A&A...687A..48T
    Precise characterisation of HD 15337 with CHEOPS: A laboratory for planet formation and evolution 2024A&A...686A.282R
    HIP 41378 observed by CHEOPS: Where is planet d? 2024A&A...686L..18S
    Characterisation of the TOI-421 planetary system using CHEOPS, TESS, and archival radial velocity data 2024A&A...686A.301K
    HD 110067 c has an aligned orbit. Measuring the Rossiter-McLaughlin effect inside a resonant multi-planet system with ESPRESSO 2024A&A...687L...2Z
    Detection of Na in the atmosphere of the hot Jupiter HAT-P-55b 2024A&A...687A...9K
    Migration and Evolution of giant ExoPlanets (MEEP). I. Nine Newly Confirmed Hot Jupiters from the TESS Mission 2024AJ....168...32S
    TOI-837 b is a young Saturn-sized exoplanet with a massive 70 M<SUB>⊕</SUB> core 2024MNRAS.531.4275B
    Reconnaissance ultracool spectra in the Euclid Deep Fields 2024A&A...686A.171Z
    Detailed cool star flare morphology with CHEOPS and TESS*** 2024A&A...686A.239B
    Nobel laureate Didier Queloz visits the IAC and outlines the ‘next frontier’ in the search for exoplanets
    The IAC participates in a complex observation campaign to unravel the enigmatic 'Neptunian desert'
    Two IAC projects won the prestigious ERC Advanced Grants awarded by the European Research Council
    A giant planet around a tiny star
    The IAC discovers a new super-Earth in a nearby planetary system
    A study reveals a planetary system with an unexpected rocky planet in its outer region
    Eccentric exoplanet reveals how hot jupiters form
    Astronomers observe differences in sunrises and sunsets on a distant world
    Astronomers discover Earth-sized exoplanet orbiting ultra-cool star
    Astronomers spot a giant planet that’s as light as cotton candy
    Eva Villaver, winner of the Spanish Geographical Society Research Award 2023
    CARMENES exoplanet hunter scientific meeting
    The densest “Neptune” ever observed
    Astronomers find Earth-sized world potentially covered in volcanoes
    CARMENES project boosts the number of known planets in the solar neighbourhood
    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”