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

    TOI-199 b: A Well-characterized 100 day Transiting Warm Giant Planet with TTVs Seen from Antarctica 2023AJ....166..201H
    A super-massive Neptune-sized planet 2023Natur.622..255N
    GJ 806 (TOI-4481): A bright nearby multi-planetary system with a transiting hot low-density super-Earth 2023A&A...678A..80P
    TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets around M-dwarf Stars and Revised Parameters for Three Others 2023AJ....166..163H
    Detection of Carbon Monoxide in the Atmosphere of WASP-39b Applying Standard Cross-correlation Techniques to JWST NIRSpec G395H Data 2023ApJ...955L..19E
    Two super-Earths at the edge of the habitable zone of the nearby M dwarf TOI-2095 2023A&A...677A.182M
    A Massive Hot Jupiter Orbiting a Metal-rich Early M Star Discovered in the TESS Full-frame Images 2023AJ....166..165G
    A 5M<SUB>Jup</SUB> non-transiting coplanar circumbinary planet around Kepler-1660AB 2023MNRAS.525.4628G
    Investigating the visible phase-curve variability of 55 Cnc e★ 2023A&A...677A.112M
    Company for the Ultra-high Density, Ultra-short Period Sub-Earth GJ 367 b: Discovery of Two Additional Low-mass Planets at 11.5 and 34 Days 2023ApJ...955L...3G
    Confirmation of an He I evaporating atmosphere around the 650-Myr-old sub-Neptune HD 235088 b (TOI-1430 b) with CARMENES 2023A&A...677A..56O
    TOI-2084 b and TOI-4184 b: Two new sub-Neptunes around M dwarf stars 2023A&A...677A..38B
    TOI-1416: A system with a super-Earth planet with a 1.07 d period 2023A&A...677A..12D
    Modeling the Chromosphere and Transition Region of Planet-hosting Star GJ 436 2023ApJ...954...73H
    Long-term trends in albedo as seen from a lunar observatory 2023AdSpR..72.2109W
    A broadband thermal emission spectrum of the ultra-hot Jupiter WASP-18b 2023Natur.620..292C
    The mass of TOI-519 b: A close-in giant planet transiting a metal-rich mid-M dwarf 2023PASJ...75..713K
    An M dwarf accompanied by a close-in giant orbiter with SPECULOOS 2023MNRAS.525L..98T
    TOI-1130: A photodynamical analysis of a hot Jupiter in resonance with an inner low-mass planet 2023A&A...675A.115K
    A Mini-Neptune Orbiting the Metal-poor K Dwarf BD+29 2654 2023AJ....166...49D
    The planetary system around HD 190622 (TOI-1054). Measuring the gas content of low-mass planets orbiting F-stars 2023A&A...675A.183C
    Two sub-Neptunes around the M dwarf TOI-1470 2023A&A...675A.177G
    The CARMENES search for exoplanets around M dwarfs. A sub-Neptunian mass planet in the habitable zone of HN Lib 2023A&A...675A.141G
    Featureless transmission spectra of 12 giant exoplanets observed by GTC/OSIRIS 2023A&A...675A..62J
    An unusually low-density super-Earth transiting the bright early-type M-dwarf GJ 1018 (TOI-244) 2023A&A...675A..52C
    GRB 201015A and the nature of low-luminosity soft gamma-ray bursts 2023MNRAS.523.4923P
    Exploring the stellar surface phenomena of WASP-52 and HAT-P-30 with ESPRESSO 2023A&A...674A.174C
    TOI-733 b: A planet in the small-planet radius valley orbiting a Sun-like star 2023A&A...674A.117G
    VaTEST. II. Statistical Validation of 11 TESS-detected Exoplanets Orbiting K-type Stars 2023AJ....166....9M
    TOI-5678b: A 48-day transiting Neptune-mass planet characterized with CHEOPS and HARPS★ 2023A&A...674A..43U
    Refined parameters of the HD 22946 planetary system and the true orbital period of planet d★ 2023A&A...674A..44G
    TOI-4010: A System of Three Large Short-period Planets with a Massive Long-period Companion 2023AJ....166....7K
    TESS and CHEOPS discover two warm sub-Neptunes transiting the bright K-dwarf HD 15906 2023MNRAS.523.3090T
    Two warm Neptunes transiting HIP 9618 revealed by TESS and Cheops 2023MNRAS.523.3069O
    The CARMENES search for exoplanets around M dwarfs. Line-by-line sensitivity to activity in M dwarfs 2023A&A...674A..61L
    Detection of Carbon Monoxide's 4.6 Micron Fundamental Band Structure in WASP-39b's Atmosphere with JWST NIRSpec G395H 2023ApJ...949L..15G
    Discovery of a substellar companion in the TESS light curve of the δ Scuti/γ Doradus hybrid pulsator HD 31221 2023A&A...673L..14K
    Characterisation of the upper atmospheres of HAT-P-32 b, WASP-69 b, GJ 1214 b, and WASP-76 b through their He I triplet absorption 2023A&A...673A.140L
    A temperate Earth-sized planet with tidal heating transiting an M6 star 2023Natur.617..701P
    Photochemically produced SO<SUB>2</SUB> in the atmosphere of WASP-39b 2023Natur.617..483T

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    Gliese 486 b: a Rosetta stone for the study of exoplanets
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    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”