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

    Primeval very low-mass stars and brown dwarfs - VIII. The first age benchmark L subdwarf, a wide companion to a halo white dwarf 2024MNRAS.533.1654Z
    The CARMENES search for exoplanets around M dwarfs. Revisiting the GJ 581 multi-planetary system with new Doppler measurements from CARMENES, HARPS, and HIRES 2024A&A...688A.112V
    TOI-1408: Discovery and Photodynamical Modeling of a Small Inner Companion to a Hot Jupiter Revealed by Transit Timing Variations 2024ApJ...971L..28K
    A hot-Jupiter progenitor on a super-eccentric retrograde orbit 2024Natur.632...50G
    TOI-757 b: an eccentric transiting mini-Neptune on a 17.5-d orbit 2024MNRAS.533....1A
    An Earth-sized Planet on the Verge of Tidal Disruption 2024AJ....168..101D
    Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b 2024NatAs...8..879B
    CHEOPS in-flight performance. A comprehensive look at the first 3.5 yr of operations 2024A&A...687A.302F
    Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3 2024NatAs...8..865G
    Three short-period Earth-sized planets around M dwarfs discovered by TESS: TOI-5720 b, TOI-6008 b, and TOI-6086 b 2024A&A...687A.264B
    Detection of Fe and Ti on the dayside of the ultrahot Jupiter MASCARA-1b with CARMENES 2024A&A...687A.103G
    TOI-4336 A b: A temperate sub-Neptune ripe for atmospheric characterization in a nearby triple M-dwarf system 2024A&A...687A..48T
    Precise characterisation of HD 15337 with CHEOPS: A laboratory for planet formation and evolution 2024A&A...686A.282R
    HIP 41378 observed by CHEOPS: Where is planet d? 2024A&A...686L..18S
    Characterisation of the TOI-421 planetary system using CHEOPS, TESS, and archival radial velocity data 2024A&A...686A.301K
    HD 110067 c has an aligned orbit. Measuring the Rossiter-McLaughlin effect inside a resonant multi-planet system with ESPRESSO 2024A&A...687L...2Z
    Detection of Na in the atmosphere of the hot Jupiter HAT-P-55b 2024A&A...687A...9K
    Migration and Evolution of giant ExoPlanets (MEEP). I. Nine Newly Confirmed Hot Jupiters from the TESS Mission 2024AJ....168...32S
    TOI-837 b is a young Saturn-sized exoplanet with a massive 70 M<SUB>⊕</SUB> core 2024MNRAS.531.4275B
    Reconnaissance ultracool spectra in the Euclid Deep Fields 2024A&A...686A.171Z
    Detailed cool star flare morphology with CHEOPS and TESS*** 2024A&A...686A.239B
    The Discovery and Follow-up of Four Transiting Short-period Sub-Neptunes Orbiting M Dwarfs 2024AJ....167..289H
    TOI-4438 b: a transiting mini-Neptune amenable to atmospheric characterization 2024A&A...685A.147G
    Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Transmission Spectroscopy 2024ApJ...967L..21K
    TOI-1135 b: A young hot Saturn-size planet orbiting a solar-type star 2024A&A...685A..90M
    VaTEST III: Validation of eight potential super-earths from TESS data 2024PASA...41...30M
    Validation of a Third Planet in the LHS 1678 System 2024AJ....167..255S
    The tidal deformation and atmosphere of WASP-12 b from its phase curve★ 2024A&A...685A..63A
    TESS and ESPRESSO discover a super-Earth and a mini-Neptune orbiting the K-dwarf TOI-238* 2024A&A...685A..56S
    Discovery of two warm mini-Neptunes with contrasting densities orbiting the young K3V star TOI-815 2024A&A...685A...5P
    TOI-663: A newly discovered multi-planet system with three transiting mini-Neptunes orbiting an early M star 2024A&A...685A..19C
    Identification of the Top TESS Objects of Interest for Atmospheric Characterization of Transiting Exoplanets with JWST 2024AJ....167..233H
    The compact multi-planet system GJ 9827 revisited with ESPRESSO★ 2024A&A...684A..22P
    Teegarden's Star revisited. A nearby planetary system with at least three planets 2024A&A...684A.117D
    Asymmetry in the atmosphere of the ultra-hot Jupiter WASP-76 b 2024A&A...684A..27D
    Characterization of starspots on a young M-dwarf K2-25: multiband observations of stellar photometric variability and planetary transits 2024MNRAS.530..167M
    Revisiting the warm sub-Saturn TOI-1710b. The impact of stellar activity on the mass measurement 2024A&A...684A..96O
    Wolf 327b: A new member of the pack of ultra-short-period super-Earths around M dwarfs 2024A&A...684A..83M
    Planets observed with CHEOPS. Two super-Earths orbiting the red dwarf star TOI-776 2024A&A...684A..12F
    TOI-1199 b and TOI-1273 b: Two new transiting hot Saturns detected and characterized with SOPHIE and TESS 2024A&A...684A...6S

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