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

    Characterization of the K2-38 planetary system. Unraveling one of the densest planets known to date 2020A&A...641A..92T
    Atmospheric characterization of the ultra-hot Jupiter MASCARA-2b/KELT-20b. Detection of Ca II, Fe II, Na I, and the Balmer series of H (Hα, Hβ, and Hγ) with high-dispersion transit spectroscopy (Corrigendum) 2020A&A...640C...6C
    K2-280 b - a low density warm sub-Saturn around a mildly evolved star 2020MNRAS.497.4423N
    The CARMENES search for exoplanets around M dwarfs. Variability of the He I line at 10 830 Å 2020A&A...640A..52F
    The CARMENES search for exoplanets around M dwarfs. Measuring precise radial velocities in the near infrared: The example of the super-Earth CD Cet b 2020A&A...640A..50B
    Limits on the Spin-Orbit Angle and Atmospheric Escape for the 22 Myr Old Planet AU Mic b 2020ApJ...899L..13H
    HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away 2020AJ....160..113B
    Discovery and characterization of the exoplanets WASP-148b and c. A transiting system with two interacting giant planets 2020A&A...640A..32H
    TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet 2020AJ....160...96T
    Searching for electromagnetic counterparts to gravitational-wave merger events with the prototype Gravitational-Wave Optical Transient Observer (GOTO-4) 2020MNRAS.497..726G
    Search for the sub-stellar lithium depletion boundary in the open star cluster Coma Berenices 2020A&A...640A...9M
    A temperature inversion with atomic iron in the ultra-hot dayside atmosphere of WASP-189b 2020A&A...640L...5Y
    The Multiplanet System TOI-421 2020AJ....160..114C
    Precise mass and radius of a transiting super-Earth planet orbiting the M dwarf TOI-1235: a planet in the radius gap? 2020A&A...639A.132B
    Three short-period Jupiters from TESS. HIP 65Ab, TOI-157b, and TOI-169b 2020A&A...639A..76N
    An eclipsing substellar binary in a young triple system discovered by SPECULOOS 2020NatAs...4..650T
    Revisiting Proxima with ESPRESSO 2020A&A...639A..77S
    The correlation between photometric variability and radial velocity jitter. Based on TESS and HARPS observations 2020A&A...639A..35H
    A multiplanet system of super-Earths orbiting the brightest red dwarf star GJ 887 2020Sci...368.1477J
    The CARMENES search for exoplanets around M dwarfs. The He I infrared triplet lines in PHOENIX models of M 2-3 V stars 2020A&A...638A.115H
    A planet within the debris disk around the pre-main-sequence star AU Microscopii 2020Natur.582..497P
    First detection of two superoutbursts during the rebrightening phase of a WZ Sge-type dwarf nova: TCP J21040470+4631129 2020PASJ...72...49T
    The CARMENES search for exoplanets around M dwarfs. Dynamical characterization of the multiple planet system GJ 1148 and prospects of habitable exomoons around GJ 1148 b 2020A&A...638A..16T
    A He I upper atmosphere around the warm Neptune GJ 3470 b 2020A&A...638A..61P
    Detection of Fe I and Fe II in the atmosphere of MASCARA-2b using a cross-correlation method 2020A&A...638A..26S
    The CARMENES search for exoplanets around M dwarfs. A super-Earth planet orbiting HD 79211 (GJ 338 B) 2020A&A...637A..93G
    The CARMENES search for exoplanets around M dwarfs. Characterization of the nearby ultra-compact multiplanetary system YZ Ceti 2020A&A...636A.119S
    Optical phase curve of the ultra-hot Jupiter WASP-121b 2020A&A...637A..36B
    Two Transiting Hot Jupiters from the WASP Survey: WASP-150b and WASP-176b 2020AJ....159..255C
    Doppler tomographic measurement of the nodal precession of WASP-33b 2020PASJ...72...19W
    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

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