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

    Magnetic fields in M dwarfs from the CARMENES survey 2019A&A...626A..86S
    Temporal changes of the flare activity of Proxima Centauri 2019A&A...626A.111P
    A low-mass triple system with a wide L/T transition brown dwarf component: NLTT 51469AB/SDSS 2131-0119 2019MNRAS.487.1149G
    The CARMENES search for exoplanets around M dwarfs. Different roads to radii and masses of the target stars 2019A&A...625A..68S
    The Transiting Multi-planet System HD15337: Two Nearly Equal-mass Planets Straddling the Radius Gap 2019ApJ...876L..24G
    Qatar Exoplanet Survey: Qatar-8b, 9b, and 10b—A Hot Saturn and Two Hot Jupiters 2019AJ....157..224A
    Proxima Centauri b is not a transiting exoplanet 2019MNRAS.487..268J
    Primeval very low-mass stars and brown dwarfs - VI. Population properties of metal-poor degenerate brown dwarfs 2019MNRAS.486.1260Z
    Gliese 49: activity evolution and detection of a super-Earth. A HADES and CARMENES collaboration 2019A&A...624A.123P
    MuSCAT2: four-color simultaneous camera for the 1.52-m Telescopio Carlos Sánchez 2019JATIS...5a5001N
    HD 219666 b: a hot-Neptune from TESS Sector 1 2019A&A...623A.165E
    The CARMENES search for exoplanets around M dwarfs. Chromospheric modeling of M 2-3 V stars with PHOENIX 2019A&A...623A.136H
    Detection and characterization of an ultra-dense sub-Neptunian planet orbiting the Sun-like star K2-292 2019A&A...623A.114L
    The CARMENES search for exoplanets around M dwarfs. Period search in Hα, Na I D, and Ca II IRT lines 2019A&A...623A..24F
    A 3D view of the Hyades stellar and sub-stellar population 2019A&A...623A..35L
    Detection and Doppler monitoring of K2-285 (EPIC 246471491), a system of four transiting planets smaller than Neptune 2019A&A...623A..41P
    The CARMENES search for exoplanets around M dwarfs. Activity indicators at visible and near-infrared wavelengths 2019A&A...623A..44S
    The CARMENES search for exoplanets around M dwarfs. The enigmatic planetary system GJ 4276: one eccentric planet or two planets in a 2:1 resonance? 2019A&A...622A.153N
    The GTC exoplanet transit spectroscopy survey. X. Stellar spots versus Rayleigh scattering: the case of HAT-P-11b 2019A&A...622A.172M
    Bright Opportunities for Atmospheric Characterization of Small Planets: Masses and Radii of K2-3 b, c, and d and GJ3470 b from Radial Velocity Measurements and Spitzer Transits 2019AJ....157...97K
    K2-290: a warm Jupiter and a mini-Neptune in a triple-star system 2019MNRAS.484.3522H
    Exoplanet Biosignatures: Observational Prospects 2018AsBio..18..739F
    The HARPS search for southern extra-solar planets. XLIV. Eight HARPS multi-planet systems hosting 20 super-Earth and Neptune-mass companions 2019A&A...622A..37U
    Qatar Exoplanet Survey: Qatar-7b—A Very Hot Jupiter Orbiting a Metal-rich F-Star 2019AJ....157...74A
    TESS Discovery of an Ultra-short-period Planet around the Nearby M Dwarf LHS 3844 2019ApJ...871L..24V
    Role of host star variability in the detectability of planetary phase curves 2019A&A...621A..44H
    Multiple water band detections in the CARMENES near-infrared transmission spectrum of HD 189733 b 2019A&A...621A..74A
    CARMENES input catalogue of M dwarfs. IV. New rotation periods from photometric time series 2019A&A...621A.126D
    A Second Terrestrial Planet Orbiting the Nearby M Dwarf LHS 1140 2019AJ....157...32M
    K2-140b and K2-180b - Characterization of a hot Jupiter and a mini-Neptune from the K2 mission 2019MNRAS.482.1807K
    Machine-learning approaches to exoplanet transit detection and candidate validation in wide-field ground-based surveys 2019MNRAS.483.5534S
    K2-264: a transiting multiplanet system in the Praesepe open cluster 2019MNRAS.484....8L
    Time-resolved image polarimetry of TRAPPIST-1 during planetary transits 2019MNRAS.484L..38M
    Detection of He I λ10830 Å absorption on HD 189733 b with CARMENES high-resolution transmission spectroscopy 2018A&A...620A..97S
    Exploring the substellar population in the Hyades open cluster 2018A&A...620A.130P
    The CARMENES search for exoplanets around M dwarfs. The warm super-Earths in twin orbits around the mid-type M dwarfs Ross 1020 (GJ 3779) and LP 819-052 (GJ 1265) 2018A&A...620A.171L
    Ground-based detection of an extended helium atmosphere in the Saturn-mass exoplanet WASP-69b 2018Sci...362.1388N
    Characterization of Exoplanets: Secondary Eclipses 2018haex.bookE..40A
    The Solar System as a Benchmark for Exoplanet Systems Interpretation 2018haex.bookE..56M
    The Detectability of Earth's Biosignatures Across Time 2018haex.bookE..70P

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