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

    Leveraging Movement Representation from Contrastive Learning for Asteroid Detection 2024PASP..136l4507K
    CARMENES input catalogue of M dwarfs: VIII. Kinematics in the solar neighbourhood 2024A&A...692A.206C
    Confirmation of four hot Jupiters detected by TESS using follow-up spectroscopy from MaHPS at Wendelstein together with NEID and TRES 2024A&A...692A.220E
    Characterisation of TOI-406 as a showcase of the THIRSTEE program: A two-planet system straddling the M-dwarf density gap 2024A&A...692A.238L
    Hints of a close outer companion to the ultra-hot Jupiter TOI-2109 b 2024A&A...692A.254H
    The CARMENES search for exoplanets around M dwarfs: The impact of rotation and magnetic fields on the radial velocity jitter in cool stars 2024A&A...692A.138R
    The CHEOPS view of the climate of WASP-3 b 2024A&A...692A.129S
    Probing Na in giant exoplanets with ESPRESSO and 3D NLTE stellar spectra 2024A&A...692A..43C
    A Fourth Planet in the Kepler-51 System Revealed by Transit Timing Variations 2024AJ....168..294M
    Architecture of TOI-561 planetary system 2024MNRAS.535.2763P
    A giant planet transiting a 3-Myr protostar with a misaligned disk 2024Natur.635..574B
    Coronal and chromospheric activity of Teegarden's star 2024A&A...691A.208F
    Hints of auroral and magnetospheric polarized radio emission from the scallop-shell star 2MASS J05082729–2101444 2024A&A...691L..17K
    An ultra-short-period super-Earth with an extremely high density and an outer companion 2024NatSR..1427219L
    The obliquity and atmosphere of the hot Jupiter WASP-122b (KELT-14b) with ESPRESSO: An aligned orbit and no sign of atomic or molecular absorption 2024A&A...691A.120S
    HD 21520 b: a warm sub-Neptune transiting a bright G dwarf 2024MNRAS.534.3744N
    The K2-24 planetary system revisited by CHEOPS 2024A&A...690A.349N
    Obliquities of exoplanet host stars: Nineteen new and updated measurements, and trends in the sample of 205 measurements 2024A&A...690A.379K
    Physical properties of trans-Neptunian object (143707) 2003 UY<SUB>117</SUB> derived from stellar occultation and photometric observations 2024A&A...691A..31K
    TESS discovery of two super-Earths orbiting the M-dwarf stars TOI-6002 and TOI-5713 near the radius valley 2024A&A...690A.263G
    The GAPS Programme at TNG: LIX. Characterisation study of the ∼300 Myr-old multi-planetary system orbiting the star BD+40 2790 (TOI-2076) 2024A&A...690A.235D
    HR 10 as seen by CHEOPS and TESS: Revealing δ Scuti pulsations, granulation-like signal and hint for transients 2024A&A...690A..73S
    A sub-Earth-mass planet orbiting Barnard's star 2024A&A...690A..79G
    Low abundances of TiO and VO on the dayside of KELT-9 b: Insights from ground-based photometric observations 2024PASJ...76.1131H
    Validation of up to seven TESS planet candidates through multi-colour transit photometry using MuSCAT2 data 2024A&A...690A..62P
    The Gaia ultracool dwarf sample-IV. GTC/OSIRIS optical spectra of Gaia late-M and L dwarfs 2024MNRAS.534..695C
    Mass determination of two Jupiter-sized planets orbiting slightly evolved stars: TOI-2420 b and TOI-2485 b 2024A&A...690A..18C
    Isotopic abundance of carbon in the DLA towards QSO B1331+170 2024MNRAS.534...12M
    Revisiting the dynamical masses of the transiting planets in the young AU Mic system: Potential AU Mic b inflation at 20 Myr 2024A&A...689A.132M
    The MOPYS project: A survey of 70 planets in search of extended He I and H atmospheres: No evidence of enhanced evaporation in young planets 2024A&A...689A.179O
    Photo-dynamical characterisation of the TOI-178 resonant chain. Exploring the robustness of transit-timing variations and radial velocity mass characterisations 2024A&A...688A.211L
    TOI-2379 b and TOI-2384 b: two super-Jupiter mass planets transiting low-mass host stars 2024MNRAS.533.3893B
    Characterisation of the warm-Jupiter TOI-1130 system with CHEOPS and a photo-dynamical approach 2024A&A...689A..52B
    The atmospheric composition of the ultra-hot Jupiter WASP-178 b observed with ESPRESSO 2024A&A...689A..54D
    ESPRESSO reveals blueshifted neutral iron emission lines on the dayside of WASP-76 b 2024A&A...689A...8C
    Inhomogeneous terminators on the exoplanet WASP-39 b 2024Natur.632.1017E
    Unveiling the internal structure and formation history of the three planets transiting HIP 29442 (TOI-469) with CHEOPS 2024A&A...688A.223E
    Climate change in hell: Long-term variation in transits of the evaporating planet K2-22b 2024A&A...688L..34G
    Three super-Earths and a possible water world from TESS and ESPRESSO 2024A&A...688A.216H
    Kilonova Seekers: the GOTO project for real-time citizen science in time-domain astrophysics 2024MNRAS.533.2113K

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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
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    Sucessful test of new technology which should help to discover “other Earths”
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