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

    Evidence of energy-, recombination-, and photon-limited escape regimes in giant planet H/He atmospheres 2021A&A...648L...7L
    Transient-optimized real-bogus classification with Bayesian convolutional neural networks - sifting the GOTO candidate stream 2021MNRAS.503.4838K
    A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130) 2021A&A...648A..75S
    Exploring the planetary-mass population in the Upper Scorpius association 2021MNRAS.503.2265L
    TESS Delivers Five New Hot Giant Planets Orbiting Bright Stars from the Full-frame Images 2021AJ....161..194R
    Modelling the He I triplet absorption at 10 830 Å in the atmospheres of HD 189733 b and GJ 3470 b 2021A&A...647A.129L
    A nearby transiting rocky exoplanet that is suitable for atmospheric investigation 2021Sci...371.1038T
    TIC 168789840: A Sextuply Eclipsing Sextuple Star System 2021AJ....161..162P
    The atmosphere of HD 209458b seen with ESPRESSO. No detectable planetary absorptions at high resolution 2021A&A...647A..26C
    CHEOPS observations of the HD 108236 planetary system: a fifth planet, improved ephemerides, and planetary radii 2021A&A...646A.157B
    A Multiwavelength Look at the GJ 9827 System: No Evidence of Extended Atmospheres in GJ 9827b and d from HST and CARMENES Data 2021AJ....161..136C
    ESPRESSO high-resolution transmission spectroscopy of WASP-76 b 2021A&A...646A.158T
    Improving light curve parameters of exoplanets based on TESS data 2021CoSka..51...68G
    The CHEOPS mission 2021ExA....51..109B
    Planet cartography with neural learned regularization 2021A&A...646A...4A
    Identification and Mitigation of a Vibrational Telescope Systematic with Application to Spitzer 2021PSJ.....2....9C
    Extrasolar Enigmas: From Disintegrating Exoplanets to Exoasteroids 2020rfma.book...45B
    An ultrahot Neptune in the Neptune desert 2020NatAs...4.1148J
    Processing GOTO data with the Rubin Observatory LSST Science Pipelines I: Production of coadded frames 2021PASA...38....4M
    Planet Hunters TESS II: findings from the first two years of TESS 2021MNRAS.501.4669E
    ESPRESSO at VLT. On-sky performance and first results 2021A&A...645A..96P
    The TESS-Keck Survey. II. An Ultra-short-period Rocky Planet and Its Siblings Transiting the Galactic Thick-disk Star TOI-561 2021AJ....161...56W
    A planetary system with two transiting mini-Neptunes near the radius valley transition around the bright M dwarf TOI-776 2021A&A...645A..41L
    A Modified Kwee─Van Woerden Method for Eclipse Minimum Timing with Reliable Error Estimates 2020Galax...9....1D
    Strong Hα emission in the young planetary mass companion 2MASS J0249-0557 c 2021A&A...645A..17C
    Ultracool dwarfs in deep extragalactic surveys using the virtual observatory: ALHAMBRA and COSMOS 2021MNRAS.501..281S
    Atmospheric Rossiter-McLaughlin effect and transmission spectroscopy of WASP-121b with ESPRESSO 2021A&A...645A..24B
    An enhanced slope in the transmission spectrum of the hot Jupiter WASP-104b 2021MNRAS.500.5420C
    TOI-519 b: A short-period substellar object around an M dwarf validated using multicolour photometry and phase curve analysis 2021A&A...645A..16P
    Vetting of 384 TESS Objects of Interest with TRICERATOPS and Statistical Validation of 12 Planet Candidates 2021AJ....161...24G
    Maintaining the Ephemeris of 20 CoRoT Planets: Transit Minimum Times and Potential Transit Timing Variations 2020JAVSO..48..201D
    WASP-127b: a misaligned planet with a partly cloudy atmosphere and tenuous sodium signature seen by ESPRESSO 2020A&A...644A.155A
    The CARMENES search for exoplanets around M dwarfs. LP 714-47 b (TOI 442.01): populating the Neptune desert 2020A&A...644A.127D
    Broadband transmission spectroscopy of HD 209458b with ESPRESSO: evidence for Na, TiO, or both 2020A&A...644A..51S
    The widest broadband transmission spectrum (0.38-1.71 μm) of HD 189733b from ground-based chromatic Rossiter-McLaughlin observations 2020A&A...643A..64O
    Going back to basics: accelerating exoplanet transit modelling using Taylor-series expansion of the orbital motion 2020MNRAS.499.3356P
    Machine learning for transient recognition in difference imaging with minimum sampling effort 2020MNRAS.499.6009M
    The CARMENES search for exoplanets around M dwarfs. Rubidium abundances in nearby cool stars 2020A&A...642A.227A
    The hot dayside and asymmetric transit of WASP-189 b seen by CHEOPS 2020A&A...643A..94L
    The CARMENES search for exoplanets around M dwarfs. Three temperate-to-warm super-Earths 2020A&A...643A.112S
    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”