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

    The TESS-Keck Survey. I. A Warm Sub-Saturn-mass Planet and a Caution about Stray Light in TESS Cameras 2020AJ....159..241D
    The CARMENES search for exoplanets around M dwarfs. Radial velocities and activity indicators from cross-correlation functions with weighted binary masks 2020A&A...636A..36L
    Nightside condensation of iron in an ultrahot giant exoplanet 2020Natur.580..597E
    Three planets transiting the evolved star EPIC 249893012: a hot 8.8-M<SUB>⊕</SUB> super-Earth and two warm 14.7 and 10.2-M<SUB>⊕</SUB> sub-Neptunes 2020A&A...636A..89H
    TOI-503: The First Known Brown-dwarf Am-star Binary from the TESS Mission 2020AJ....159..151S
    Modelling the He I triplet absorption at 10 830 Å in the atmosphere of HD 209458 b 2020A&A...636A..13L
    Is there Na I in the atmosphere of HD 209458b?. Effect of the centre-to-limb variation and Rossiter-McLaughlin effect in transmission spectroscopy studies 2020A&A...635A.206C
    Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS). III. Atmospheric structure of the misaligned ultra-hot Jupiter WASP-121b 2020A&A...635A.205B
    Can we detect the stellar differential rotation of WASP-7 through the Rossiter-McLaughlin observations? 2020MNRAS.493.5928S
    Detection of Na, K, and Hα absorption in the atmosphere of WASP-52b using ESPRESSO 2020A&A...635A.171C
    Stellar activity consequence on the retrieved transmission spectra through chromatic Rossiter-McLaughlin observations 2020A&A...635A.123B
    LHS 1815b: The First Thick-disk Planet Detected by TESS 2020AJ....159..160G
    TESS Spots a Hot Jupiter with an Inner Transiting Neptune 2020ApJ...892L...7H
    RedDots: a temperate 1.5 Earth-mass planet candidate in a compact multiterrestrial planet system around GJ 1061 2020MNRAS.493..536D
    The Continuing Search for Evidence of Tidal Orbital Decay of Hot Jupiters 2020AJ....159..150P
    Transiting exoplanets from the CoRoT space mission. XXIX. The hot Jupiters CoRoT-30 b and CoRoT-31 b 2020A&A...635A.122B
    TOI-132 b: A short-period planet in the Neptune desert transiting a V = 11.3 G-type star<SUP>★</SUP> 2020MNRAS.493..973D
    It Takes Two Planets in Resonance to Tango around K2-146 2020AJ....159..120L
    GJ 1252 b: A 1.2 R<SUB>⊕</SUB> Planet Transiting an M3 Dwarf at 20.4 pc 2020ApJ...890L...7S
    Mass determinations of the three mini-Neptunes transiting TOI-125 2020MNRAS.492.5399N
    USco1621 B and USco1556 B: Two wide companions at the deuterium-burning mass limit in Upper Scorpius 2020A&A...633A.152C
    The CARMENES search for exoplanets around M dwarfs. The He I triplet at 10830 Å across the M dwarf sequence 2019A&A...632A..24F
    Precise radial velocities of giant stars. XIII. A second Jupiter orbiting in 4:3 resonance in the 7 CMa system 2019A&A...631A.136L
    Three Red Suns in the Sky: A Transiting, Terrestrial Planet in a Triple M-dwarf System at 6.9 pc 2019AJ....158..152W
    He I λ 10 830 Å in the transmission spectrum of HD209458 b 2019A&A...629A.110A
    A super-Earth and two sub-Neptunes transiting the nearby and quiet M dwarf TOI-270 2019NatAs...3.1099G
    Ionized calcium in the atmospheres of two ultra-hot exoplanets WASP-33b and KELT-9b 2019A&A...632A..69Y
    Spectral library of age-benchmark low-mass stars and brown dwmarfs 2020MNRAS.491.5925M
    MuSCAT2 multicolour validation of TESS candidates: an ultra-short-period substellar object around an M dwarf 2020A&A...633A..28P
    The Habitability of GJ 357D: Possible Climate and Observability 2019ApJ...883L..40K
    Kojima-1Lb Is a Mildly Cold Neptune around the Brightest Microlensing Host Star 2019AJ....158..206F
    MASCARA-3b. A hot Jupiter transiting a bright F7 star in an aligned orbit 2019A&A...631A..76H
    A giant exoplanet orbiting a very-low-mass star challenges planet formation models 2019Sci...365.1441M
    Near-resonance in a System of Sub-Neptunes from TESS 2019AJ....158..177Q
    Radial velocity confirmation of K2-100b: a young, highly irradiated, and low-density transiting hot Neptune 2019MNRAS.490..698B
    Two New HATNet Hot Jupiters around A Stars and the First Glimpse at the Occurrence Rate of Hot Jupiters from TESS 2019AJ....158..141Z
    Water vapor detection in the transmission spectra of HD 209458 b with the CARMENES NIR channel 2019A&A...630A..53S
    Multicolour photometry for exoplanet candidate validation 2019A&A...630A..89P
    K2-295 b and K2-237 b: Two Transiting Hot Jupiters 2019AcA....69..135S
    The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy. II. Simultaneous multiwavelength range modeling of activity insensitive lines 2019A&A...627A.161P
    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
    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
    Study reveals that giant planets could reach "maturity" much earlier than previously thought
    Astronomers discover an ultra-light and super-fast sub-Earth orbiting a red dwarf
    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”