Astrofísicas: Lente gravitacional

  • Publicación
    Lens Mass Estimate in the Galactic Disk Extreme Parallax Microlensing Event Gaia19dke
    We present the results of our analysis of Gaia19dke, an extraordinary microlensing event in the Cygnus constellation that the Gaia satellite discovered. This...
  • Publicación
    Lens parameters for Gaia18cbf - a long gravitational microlensing event in the Galactic plane
    Context. The timescale of a microlensing event scales as a square root of a lens mass. Therefore, long-lasting events are important candidates for massive...
  • Publicación
    Lensed Type Ia Supernova "Encore" at z = 2: The First Instance of Two Multiply Imaged Supernovae in the Same Host Galaxy
    A bright (m F150W,AB = 24 mag), z = 1.95 supernova (SN) candidate was discovered in JWST/NIRCam imaging acquired on 2023 November 17. The SN is quintuply imaged...
  • Charla
    Lensing basics: Basic theory (2)
  • Charla
    Lensing basics: Basic theory (3)
  • Charla
    Lensing basics: Introduction (1)
  • Charla
    Lensing basics: Power-law mass model and its applications (4)
  • Publicación
    Limiting the Abundance of LIGO/Virgo Black Holes with Microlensing Observations of Quasars of Finite Size
    We present a simple but general argument that strongly limits the abundance of primordial black holes (PBHs) (or other unknown population of compact objects)...
  • Publicación
    Limits on the Mass and Abundance of Primordial Black Holes from Quasar Gravitational Microlensing
    The idea that dark matter can be made of intermediate-mass primordial black holes (PBHs) in the 10 M ⊙ ≲ M ≲ 200 M ⊙ range has recently been reconsidered...