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

    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
    Discriminating between hazy and clear hot-Jupiter atmospheres with CARMENES 2020A&A...643A..24S
    K2-111: an old system with two planets in near-resonance 2020MNRAS.499.5004M
    Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488) 2020A&A...642A.236K
    TOI 564 b and TOI 905 b: Grazing and Fully Transiting Hot Jupiters Discovered by TESS 2020AJ....160..229D
    Transmission spectroscopy and Rossiter-McLaughlin measurements of the young Neptune orbiting AU Mic 2020A&A...643A..25P
    The CARMENES search for exoplanets around M dwarfs. Two planets on opposite sides of the radius gap transiting the nearby M dwarf LTT 3780 2020A&A...642A.173N
    RoadRunner: a fast and flexible exoplanet transit model 2020MNRAS.499.1633P
    A giant planet candidate transiting a white dwarf 2020Natur.585..363V
    Detection of Na in WASP-21b's lower and upper atmosphere 2020A&A...642A..54C
    Obliquity measurement and atmospheric characterisation of the WASP-74 planetary system 2020A&A...642A..50L
    The CARMENES search for exoplanets around M dwarfs. A deep learning approach to determine fundamental parameters of target stars 2020A&A...642A..22P
    Simulations Predicting the Ability of Multi-color Simultaneous Photometry to Distinguish TESS Candidate Exoplanets from False Positives 2020PASP..132h4403L
    The TOI-763 system: sub-Neptunes orbiting a Sun-like star 2020MNRAS.498.4503F
    A precise architecture characterization of the π Mensae planetary system★ 2020A&A...642A..31D
    π Earth: A 3.14 day Earth-sized Planet from K2's Kitchen Served Warm by the SPECULOOS Team 2020AJ....160..172N
    Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS). IV. A spectral inventory of atoms and molecules in the high-resolution transmission spectrum of WASP-121 b 2020A&A...641A.123H
    Two close binaries across the hydrogen-burning limit in the Praesepe open cluster 2020MNRAS.498.3964L
    The GTC exoplanet transit spectroscopy survey. XI. Possible detection of Rayleigh scattering in the atmosphere of the Saturn-mass planet WASP-69b 2020A&A...641A.158M
    The CARMENES search for exoplanets around M dwarfs. Convective shift and starspot constraints from chromatic radial velocities 2020A&A...641A..69B

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