Publicaciones

  • A giant planet candidate transiting a white dwarf

    Astronomers have discovered thousands of planets outside the Solar System1, most of which orbit stars that will eventually evolve into red giants and then into white dwarfs. During the red giant phase, any close-orbiting planets will be engulfed by the star2, but more distant planets can survive this phase and remain in orbit around the white

    Vanderburg, Andrew et al.

    Fecha de publicación:

    9
    2020
  • A quantitative demonstration that stellar feedback locally regulates galaxy growth

    We have applied stellar population synthesis to 500-pc-sized regions in a sample of 102 galaxy discs observed with the MUSE spectrograph. We derived the star formation history and analyse specifically the 'recent' ( $20\,\rm {Myr}$ ) and 'past' ( $570\,\rm {Myr}$ ) age bins. Using a star formation self-regulator model, we can derive local mass

    Zaragoza-Cardiel, Javier et al.

    Fecha de publicación:

    9
    2020
  • How many components? Quantifying the complexity of the metallicity distribution in the Milky Way bulge with APOGEE

    We use data of ∼13-=000 stars from the Sloan Digital Sky Survey/Apache Point Observatory Galactic Evolution Experiment survey to study the shape of the bulge metallicity distribution function (MDF) within the region |ℓ| ≤ 11° and |b| ≤ 13°, and spatially constrained to RGC ≤ 3.5 kpc. We apply Gaussian mixture modelling and non-negative matrix

    Rojas-Arriagada, Alvaro et al.

    Fecha de publicación:

    9
    2020
  • NICER observations reveal that the X-ray transient MAXI J1348-630 is a black hole X-ray binary

    We studied the outburst evolution and timing properties of the recently discovered X-ray transient MAXI J1348-630 as observed with NICER. We produced the fundamental diagrams commonly used to trace the spectral evolution, and power density spectra to study the fast X-ray variability. The main outburst evolution of MAXI J1348-630 is similar to that

    Zhang, L. et al.

    Fecha de publicación:

    9
    2020
  • Observations of [OI]63-=μm line emission in main-sequence galaxies at z ∼ 1.5

    We present Herschel-PACS spectroscopy of four main-sequence star-forming galaxies at z ∼ 1.5. We detect [OI]63-=μm line emission in BzK-21000 at z = 1.5213, and measure a line luminosity, $L_{\rm [O\, {\small I}]63\, \mu m} = (3.9\pm 0.7)\times 10^9$ -=L☉. Our PDR modelling of the interstellar medium in BzK-21000 suggests a UV radiation field

    Wagg, J. et al.

    Fecha de publicación:

    9
    2020
  • RoadRunner: a fast and flexible exoplanet transit model

    I present RoadRunner, a fast exoplanet transit model that can use any radially symmetric function to model stellar limb darkening (LD) while still being faster to evaluate than the analytical transit model for quadratic LD by Mandel & Agol. CPU and GPU implementations of the model are available in the PYTRANSIT transit modelling package, and come

    Parviainen, H.

    Fecha de publicación:

    9
    2020