Publicaciones

  • Physics of Eclipsing Binaries. V. General Framework for Solving the Inverse Problem

    PHOEBE 2 is a Python package for modeling the observables of eclipsing star systems, but until now it has focused entirely on the forward model—that is, generating a synthetic model given fixed values of a large number of parameters describing the system and the observations. The inverse problem, obtaining orbital and stellar parameters given

    Conroy, Kyle E. et al.

    Fecha de publicación:

    10
    2020
  • Space Telescope and Optical Reverberation Mapping Project. XII. Broad-line Region Modeling of NGC 5548

    We present geometric and dynamical modeling of the broad line region (BLR) for the multi-wavelength reverberation mapping campaign focused on NGC 5548 in 2014. The data set includes photometric and spectroscopic monitoring in the optical and ultraviolet, covering the Hβ, C IV, and Lyα broad emission lines. We find an extended disk-like Hβ BLR with

    Williams, P. R. et al.

    Fecha de publicación:

    10
    2020
  • The chemical evolution of the dwarf spheroidal galaxy Sextans

    We present our analysis of the FLAMES dataset targeting the central 25' region of the Sextans dwarf spheroidal galaxy (dSph). This dataset is the third major part of the high-resolution spectroscopic section of the ESO large program 171.B-0588(A) obtained by the Dwarf galaxy Abundances and Radial-velocities Team. Our sample is composed of red giant

    Theler, R. et al.

    Fecha de publicación:

    10
    2020
  • The post-common-envelope binary central star of the planetary nebula PN G283.7-05.1. A possible post-red-giant-branch planetary nebula central star

    We present the discovery and characterisation of the post-common-envelope central star system in the planetary nebula PN G283.7-05.1. Deep images taken as part of the POPIPlaN survey indicate that the nebula may possess a bipolar morphology similar to other post-common-envelope planetary nebulae. Simultaneous light and radial velocity curve

    Jones, D. et al.

    Fecha de publicación:

    10
    2020
  • The principle of maximum entropy explains the cores observed in the mass distribution of dwarf galaxies

    Cold dark matter (CDM) simulations predict a central cusp in the mass distribution of galaxies. This prediction is in stark contrast with observations of dwarf galaxies that show a central plateau or "core" in their density distribution. The proposed solutions to this core-cusp problem can be classified into two types. One invokes feedback

    Sánchez Almeida, Jorge et al.

    Fecha de publicación:

    10
    2020