Huellas de la Formación de las Galaxias: Poblaciones estelares, Dinámica y Morfología

    General
    Descripción

    Bienvenida a la página web del grupo de investigación Traces of Galaxy Formation.

    Somos un grupo de investigación amplio, diverso y muy activo cuyo objetivo principal es entender la formación de galaxias en el Universo de una manera lo más completa posible. Con el estudio detellado de las poblaciones estelares como bandera, estamos constantemente buscando y desarrollando nuevas herramientas e ideas que nos permitan entender cómo las galaxias han llegado a convertirse en lo que hoy observamos.

    Una historia de formación compleja, como la que se espera describa la evolución de las galaxias, necesita de un acercamiento multidisciplinar para ser entendida. Nuestro grupo en el IAC está compuesto por personal investigador de gran experiencia en simulaciones cosmológicas, estudios dinámicos, análisis de poblaciones estelares y  caracterizaciones morfológicas de galaxias tanto locales como a alto corrimiento al rojo. Combinamos distintas alternativas (e.g. observaciones y teoría o procesos de evolución secular y cosmológica) para poder alcanzar en los próximos años una visión consistente de los mecanismos físicos que regulan la formación de las galaxias.

    Dentro de este esquema general, estamos principalmente centrados en el estudio de tres líneas centrales:

    1. Modelos de síntesis de poblaciones estelares
      • Desarrollo de modelos de poblaciones estelares
      • Métodos de análisis para el estudio de poblaciones estelares
      • Universalidad de la función inicial de masa (IMF)
       
    2. Evolución cósmica de galaxias
      • Evolución de galaxias masivas
      • Poblaciones estelares en distintos entornos
      • Ciencia a bajo brillo superficial
      • Simulaciones númericas y aprendizaje automático
       
    3. Procesos evolutivos en galaxias cercanas
      • Agujeros negros como moduladores de la formación estelar
      • Cartogrtafiados locales
      • Cinemática estelar y modelos dinámicos

    Si quieres ponerte en contacto o trabajar con el grupo, por favor, envía un correo al investigador principal (Ignacio Martín-Navarro ignacio.martin [at] iac.es).

    Esta es una muestra de algunos de nuestros resultados destacados más recientes:

    Publicaciones relacionadas

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      Montes, Mireia et al.

      Fecha de publicación:

      12
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    • The survival of stellar discs in Fornax-like environments, from TNG50 to real galaxies

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      Galán-de Anta, Pablo M. et al.

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      12
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    • The SAMI-Fornax Dwarfs Survey - II. The Stellar Mass Fundamental Plane and the dark matter fraction of dwarf galaxies

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    • The edges of galaxies: Tracing the limits of star formation

      The outskirts of galaxies have been studied from multiple perspectives for the past few decades. However, it is still unknown if all galaxies have clear-cut edges similar to everyday objects. We address this question by developing physically motivated criteria to define the edges of galaxies. Based on the gas density threshold required for star

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      11
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    • On the accretion of a new group of galaxies on to Virgo - II. The effect of pre-processing on the stellar population content of dEs

      Using MUSE spectra, we investigate how pre-processing and accretion on to a galaxy cluster affect the integrated stellar population properties of dwarf early-type galaxies (dEs). We analyse a sample of nine dEs with stellar masses of $\rm \sim 10^9 \, M_\odot$, which were accreted (~ 2-3 Gyr ago) on to the Virgo cluster as members of a massive

      Bidaran, Bahar et al.

      Fecha de publicación:

      9
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    • The Fornax3D project: Discovery of ancient massive merger events in the Fornax cluster galaxies NGC 1380 and NGC 1427

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      Fecha de publicación:

      8
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    • Fornax3D project: Assembly history of massive early-type galaxies in the Fornax cluster from deep imaging and integral field spectroscopy

      This work is based on high-quality integral-field spectroscopic data obtained with the Multi Unit Spectroscopic Explorer (MUSE) on the Very Large Telescope (VLT). The 21 brightest (mB ≤ 15 mag) early-type galaxies (ETGs) inside the virial radius of the Fornax cluster are observed out to distances of ∼2−3 Re. Deep imaging from the VLT Survey

      Spavone, M. et al.

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      7
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      Variations of the stellar initial mass function (IMF) in external galaxies have been inferred from a variety of independent probes. Yet the physical conditions causing these variations remain largely unknown. In this work, we explore new spatially resolved measurements of the IMF for three edge-on lenticular galaxies in the Fornax cluster. We

      Poci, A. et al.

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      8
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      Walo-Martín, Daniel et al.

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      7
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      Verro, K. et al.

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      The role played by environment in galaxy evolution is a topic of ongoing debate among astronomers. There has been little success in elucidating the degree to which environment can alter, re-shape, or drive galaxy evolution, that is, using either observations or simulations. However, our knowledge of the effect of environment on gas metallicity

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    • The X-shooter Spectral Library (XSL): Data Release 3

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      Verro, K. et al.

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      4
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      Saifollahi, Teymoor et al.

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    • The dark side of galaxy stellar populations - I. The stellar-to-halo mass relation and the velocity dispersion-halo mass relation

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      Scholz-Díaz, Laura et al.

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    • CO-CAVITY pilot survey: Molecular gas and star formation in void galaxies

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    • The Fornax3D project: Planetary nebulae catalogue and independent distance measurements to Fornax cluster galaxies

      Extragalactic planetary nebulae (PNe) offer a way to determine the distance to their host galaxies thanks to the nearly universal shape of the planetary nebulae luminosity function (PNLF). Accurate PNe distance measurements rely on obtaining well-sampled PNLFs and the number of observed PNe scales with the encompassed stellar mass. This means

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    • Capturing the Physics of MaNGA Galaxies with Self-supervised Machine Learning

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      Sánchez Almeida, Jorge et al.

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    • Rejuvenation triggers nuclear activity in nearby galaxies

      Feedback, in particular from active galactic nuclei (AGN), is believed to play a crucial role in the evolution of galaxies. In the local Universe, many galaxies with an AGN are indeed observed to reside in the so-called green valley, usually interpreted as a transition phase from a blue star-forming to a red quenched state. We use data from the

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      Fecha de publicación:

      10
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