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
    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

    44 Validated Planets from K2 Campaign 10 2018AJ....156...78L
    A transiting M-dwarf showing beaming effect in the field of Ruprecht 147 2018MNRAS.480.3864E
    Primeval very low-mass stars and brown dwarfs - IV. New L subdwarfs, Gaia astrometry, population properties, and a blue brown dwarf binary 2018MNRAS.480.5447Z
    K2-260 b: a hot Jupiter transiting an F star, and K2-261 b: a warm Saturn around a bright G star 2018MNRAS.481..596J
    Fast spectrophotometry of WD 1145+017 2018MNRAS.481..703I
    Eyes on K2-3: A system of three likely sub-Neptunes characterized with HARPS-N and HARPS 2018A&A...615A..69D
    Kepler Object of Interest Network. I. First results combining ground- and space-based observations of Kepler systems with transit timing variations 2018A&A...615A..79V
    The CARMENES search for exoplanets around M dwarfs. Wing asymmetries of Hα, Na I D, and He I lines 2018A&A...615A..14F
    The Penn State - Toruń Centre for Astronomy Planet Search stars. IV. Dwarfs and the complete sample 2018A&A...615A..31D
    Primeval very low-mass stars and brown dwarfs - III. The halo transitional brown dwarfs 2018MNRAS.479.1383Z
    The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy 2018A&A...615A...6P
    The CARMENES search for exoplanets around M dwarfs. Radial-velocity variations of active stars in visual-channel spectra 2018A&A...614A.122T
    The HARPS search for southern extra-solar planets. XLIII. A compact system of four super-Earth planets orbiting HD 215152 2018A&A...614A.133D
    HD 89345: a bright oscillating star hosting a transiting warm Saturn-sized planet observed by K2 2018MNRAS.478.4866V
    A temperate exo-Earth around a quiet M dwarf at 3.4 parsec 2018A&A...613A..25B
    The CARMENES Search for Exoplanets around M Dwarfs: A Low-mass Planet in the Temperate Zone of the Nearby K2-18 2018AJ....155..257S
    K2-141 b. A 5-M⊕ super-Earth transiting a K7 V star every 6.7 h 2018A&A...612A..95B
    The CARMENES search for exoplanets around M dwarfs. High-resolution optical and near-infrared spectroscopy of 324 survey stars 2018A&A...612A..49R
    MASCARA-2 b. A hot Jupiter transiting the mV = 7.6 A-star HD 185603 2018A&A...612A..57T
    The discovery of WASP-151b, WASP-153b, WASP-156b: Insights on giant planet migration and the upper boundary of the Neptunian desert 2018A&A...610A..63D
    The Lithium Depletion Boundary and the Age of the Hyades Cluster 2018ApJ...856...40M
    Non-grey dimming events of KIC 8462852 from GTC spectrophotometry 2018A&A...610L..12D
    K2-155: A Bright Metal-poor M Dwarf with Three Transiting Super-Earths 2018AJ....155..124H
    Exoplanets around Low-mass Stars Unveiled by K2 2018AJ....155..127H
    The CARMENES search for exoplanets around M dwarfs. HD147379 b: A nearby Neptune in the temperate zone of an early-M dwarf 2018A&A...609L...5R
    Three Small Planets Transiting a Hyades Star 2018AJ....155..115L
    The CARMENES search for exoplanets around M dwarfs . First visual-channel radial-velocity measurements and orbital parameter updates of seven M-dwarf planetary systems 2018A&A...609A.117T
    The First Post-Kepler Brightness Dips of KIC 8462852 2018ApJ...853L...8B
    Spectrum radial velocity analyser (SERVAL). High-precision radial velocities and two alternative spectral indicators 2018A&A...609A..12Z
    The GTC exoplanet transit spectroscopy survey. VIII. Flat transmission spectrum for the warm gas giant WASP-80b 2018A&A...609A..33P
    The optical + infrared L dwarf spectral sequence of young planetary-mass objects in the Upper Scorpius association 2018MNRAS.473.2020L
    A dearth of small particles in the transiting material around the white dwarf WD 1145+017 2018MNRAS.474.4795X
    K2-137 b: an Earth-sized planet in a 4.3-h orbit around an M-dwarf 2018MNRAS.474.5523S
    Confirming the least massive members of the Pleiades star cluster 2018MNRAS.475..139Z
    Detection of sodium in the atmosphere of WASP-69b 2017A&A...608A.135C
    K2-106, a system containing a metal-rich planet and a planet of lower density 2017A&A...608A..93G
    The δ Scuti pulsations of β Pictoris as observed by ASTEP from Antarctica 2017A&A...608L...6M
    Three Super-Earths Transiting the Nearby Star GJ 9827 2017AJ....154..266N
    The Discovery and Mass Measurement of a New Ultra-short-period Planet: EPIC 228732031b 2017AJ....154..226D
    Tracking Advanced Planetary Systems (TAPAS) with HARPS-N. V. A Massive Jupiter orbiting the very-low-metallicity giant star BD+03 2562 and a possible planet around HD 103485 2017A&A...606A..38V
    Nobel laureate Didier Queloz visits the IAC and outlines the ‘next frontier’ in the search for exoplanets
    The IAC participates in a complex observation campaign to unravel the enigmatic 'Neptunian desert'
    Two IAC projects won the prestigious ERC Advanced Grants awarded by the European Research Council
    A giant planet around a tiny star
    Eccentric exoplanet reveals how hot jupiters form
    Astronomers observe differences in sunrises and sunsets on a distant world
    Astronomers discover Earth-sized exoplanet orbiting ultra-cool star
    Astronomers spot a giant planet that’s as light as cotton candy
    Eva Villaver, winner of the Spanish Geographical Society Research Award 2023
    CARMENES exoplanet hunter scientific meeting
    The densest “Neptune” ever observed
    Astronomers find Earth-sized world potentially covered in volcanoes
    CARMENES project boosts the number of known planets in the solar neighbourhood
    ESPRESSO and CARMENES discover two potentially habitable exo-Earths around a star near the Sun
    James Webb telescope reveals an exoplanet atmosphere as never seen before
    Heaviest element yet detected in an exoplanet atmosphere
    Astronomers discover a planetary system with three super-Earths and two super-Mercuries
    A study shows that “water worlds” could be as common as Earths
    Gliese 486 b: a Rosetta stone for the study of exoplanets
    Two new rocky planets in the solar neighborhood
    Astronomers discover a four-planet system with a peculiar migration process
    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”