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

    Diving Beneath the Sea of Stellar Activity: Chromatic Radial Velocities of the Young AU Mic Planetary System 2021AJ....162..295C
    TOI-1431b/MASCARA-5b: A Highly Irradiated Ultrahot Jupiter Orbiting One of the Hottest and Brightest Known Exoplanet Host Stars 2021AJ....162..292A
    TOI-2109: An Ultrahot Gas Giant on a 16 hr Orbit 2021AJ....162..256W
    Ammonia-methane ratios from H-band near-infrared spectra of late-T and Y dwarfs 2021A&A...655L...3M
    TIC 172900988: A Transiting Circumbinary Planet Detected in One Sector of TESS Data 2021AJ....162..234K
    Wolf 503 b: Characterization of a Sub-Neptune Orbiting a Metal-poor K Dwarf 2021AJ....162..238P
    The changing face of AU Mic b: stellar spots, spin-orbit commensurability, and transit timing variations as seen by CHEOPS and TESS 2021A&A...654A.159S
    TESS-Keck Survey. V. Twin Sub-Neptunes Transiting the Nearby G Star HD 63935 2021AJ....162..215S
    A young spectroscopic binary in a quintuple system part of the Local Association 2021A&A...654A.134C
    Is the orbit of the exoplanet WASP-43b really decaying? TESS and MuSCAT2 observations confirm no detection 2021MNRAS.508.5514G
    The Rossiter-McLaughlin effect revolutions: an ultra-short period planet and a warm mini-Neptune on perpendicular orbits 2021A&A...654A.152B
    CARMENES detection of the Ca II infrared triplet and possible evidence of He I in the atmosphere of WASP-76b 2021A&A...654A.163C
    The HARPS search for southern extra-solar planets. XLVI. 12 super-Earths around the solar type stars HD 39194, HD 93385, HD 96700, HD 154088, and HD 189567 2021A&A...654A.104U
    The CARMENES search for exoplanets around M dwarfs. Not-so-fine hyperfine-split vanadium lines in cool star spectra 2021A&A...654A.118S
    NEREA (Near Earths and high-Res Exoplanet Atmospheres), a red/near-IR spectrograph concept for the Gran Telescopio Canarias 2021JATIS...7c5002B
    Earth's Albedo 1998-2017 as Measured From Earthshine 2021GeoRL..4894888G
    CHEOPS precision phase curve of the Super-Earth 55 Cancri e 2021A&A...653A.173M
    HD 22496 b: The first ESPRESSO stand-alone planet discovery 2021A&A...654A..60L
    The obliquity and atmosphere of the ultra-hot Jupiter TOI-1431b (MASCARA-5b): A misaligned orbit and no signs of atomic or molecular absorptions 2021A&A...654A..73S
    37 new validated planets in overlapping K2 campaigns 2021MNRAS.508..195D
    TOI-1749: an M dwarf with a Trio of Planets including a Near-resonant Pair 2021AJ....162..167F
    Searching for Fermi GRB optical counterparts with the prototype Gravitational-wave Optical Transient Observer (GOTO) 2021MNRAS.507.5463M
    The CARMENES search for exoplanets around M dwarfs. Planet occurrence rates from a subsample of 71 stars 2021A&A...653A.114S
    Correcting the effect of stellar spots on ARIEL transmission spectra - II. The limb-darkening effect 2021MNRAS.507.6118C
    Into the storm: diving into the winds of the ultra-hot Jupiter WASP-76 b with HARPS and ESPRESSO 2021A&A...653A..73S
    Two Bright M Dwarfs Hosting Ultra-Short-Period Super-Earths with Earth-like Compositions 2021AJ....162..161H
    TOI-674b: An oasis in the desert of exo-Neptunes transiting a nearby M dwarf 2021A&A...653A..60M
    The CARMENES search for exoplanets around M dwarfs. Spectroscopic orbits of nine M-dwarf multiple systems, including two triples, two brown dwarf candidates, and one close M-dwarf-white dwarf binary 2021A&A...653A..49B
    Warm terrestrial planet with half the mass of Venus transiting a nearby star 2021A&A...653A..41D
    Masses and compositions of three small planets orbiting the nearby M dwarf L231-32 (TOI-270) and the M dwarf radius valley 2021MNRAS.507.2154V
    Giant white-light flares on fully convective stars occur at high latitudes 2021MNRAS.507.1723I
    TIC 454140642: A Compact, Coplanar, Quadruple-lined Quadruple Star System Consisting of Two Eclipsing Binaries 2021ApJ...917...93K
    Wide companions to M and L subdwarfs with Gaia and the Virtual Observatory 2021A&A...650A.190G
    The CARMENES search for exoplanets around M dwarfs. Mapping stellar activity indicators across the M dwarf domain 2021A&A...652A..28L
    Exploiting timing capabilities of the CHEOPS mission with warm-Jupiter planets 2021MNRAS.506.3810B
    A search for transiting planets around hot subdwarfs. I. Methods and performance tests on light curves from Kepler, K2, TESS, and CHEOPS 2021A&A...650A.205V
    Transit detection of the long-period volatile-rich super-Earth ν<SUP>2</SUP> Lupi d with CHEOPS 2021NatAs...5..775D
    TOI-1634 b: An Ultra-short-period Keystone Planet Sitting inside the M-dwarf Radius Valley 2021AJ....162...79C
    Simultaneous photometric and CARMENES spectroscopic monitoring of fast-rotating M dwarf GJ 3270. Discovery of a post-flare corotating feature 2021A&A...651A.105J
    HiPERCAM: a quintuple-beam, high-speed optical imager on the 10.4-m Gran Telescopio Canarias 2021MNRAS.507..350D

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    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”