About me

I am a computational astrophysicist who bridges observations and theory in the field of star and planet formation by developing modelling and data analysis techniques.

My current research focuses on identifying kinematic and molecular line signatures driven by young planets embedded in their birthplaces-protoplanetary discs-and to characterise the physical and dynamical structure of these environments, which is crucial for understanding the history and diversity of fully developed planetary sistems like our own.

Ongoing Projects

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    Planetary signatures in discs

    What are the key kinematic and, more generally, molecular line features that make planetary signatures unique?

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    planet-hunting for exoALMA

    exoALMA uses the unparalleled resolution of the ALMA telescope to comprehensively search for still-forming planets in 15 discs.

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    Disc physical structure

    We are characterising the dynamical (Mstar, Mdisc) and physical structure (temperature, pressure) of ~20 discs through molecular line modelling.

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    3D tomography of turbulence

    By modelling tracers conveniently distributed across the disc vertical extent, we are quantifying non-thermal broadening in a 3D fashion.

Mined discs (Click to interact)

  • HD163296

    HD 163296

    - Two Jupiter-mass planet candidates @ 94 and 260 au
    - Gas gaps driving strong pressure modulations
    - 3D Dynamical structure revealed by CO line studies
    - Stellar and Disc mass: 1.95 and 0.13 Msun (see Martire+2024)

  • MWC480

    MWC 480

    - Kinematic planet candidate @ 245 au
    - Nearly axisymmetric temperature and velocity features
    - Tight, coherent vertical flows indicative of planet buoyancy spirals
    - Stellar and Disc mass: 2.03 and 0.15 Msun

  • AS209

    AS 209

    - Circumplanetary disc proposed by Bae et al. (2022) @ 200 au
    - Line broadening around CPD indicative of high velocity dispersion
    - Strong upward flows @ 200 au (see also Galloway-Sprietsma+2023)
    - Stellar and Disc mass: 1.3 and 0.0 Msun

  • J1604

    - Kinematic planet candidate @ 40 au (Stadler+2023)
    - Tight spiral possibly linked to buoyancy resonances with planet

  • HD 100546

    - Prominent spiral traced by multiple CO lines (Wölfer+subm.)
    - Azimuthal and vertical vel. modulations possibly driven by planets

  • IM Lup

    - Turbulence as high as 40% sound speed in the disc atmosphere (Paneque-Carreno+2024)
    - Stellar and Disc mass: 1.2 and 0.1 Msun

  • GM Aur

    - Strong spiral signatures in the disc atmosphere
    - Consistent with infalling material from parental cloud
    - Stellar and Disc mass: 1.13 and 0.12 Msun

  • v892 Tau

    - Alaguero+2024 Coming up soon...
    - Kinematic spiral signatures driven by external companion

  • 15 exoALMA sources

    - ExoALMA+2024 Coming up soon...
    - Kinematic planet candidates
    - Disc masses
    - Pressure modulations
    - Large-scale substructures

Resume

Education and Employment

  1. CV (Last update: 28Mar2024)

    Link to my full CV
  2. NASA Hubble Fellowship program - Sagan Fellow

    2024 — present

    University of Florida
    - Project title: "Mining the kinematics of discs to hunt for planets in formation"
    - Faculty Supervisor: Dr. Jaehan Bae

  3. PhD. Astrophysics

    2019-2023

    European Southern Observatory (2019-2022) + Leiden Observatory (2022-2023)
    - Project title: "Kinematics of planet-forming discs"
    - Advisers: Prof. Leonardo Testi; Prof. Ewine van Dishoeck; Dr. Stefano Facchini

  4. MPhil. Astronomy & Astrophysics

    2018 — 2019

    The University of Manchester
    - Project title: "Gravoturbulent kinematics of resolved molecular clouds in a galactic potential"
    - Adviser: Dr. Rowan Smith

  5. BSc. Astronomy

    2012 — 2018

    Universidad de Antioquia
    - Project title: "Radiative transfer modelling of W33A-MM1: 3D structure and dynamics of a complex massive star-forming region"
    - Adviser: Dr. Roberto Galván-Madrid (IRyA-UNAM)

Software

  1. Discminer

    Izquierdo et al. (2021b, 2023) Go to website
  2. pcafactory

    Izquierdo et al. (2021a) Go to website
  3. sf3dmodels

    Izquierdo et al. (2018) Go to website

Publications

  1. 2018-2024 Link to my ADS library

Research

Contact

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