Astrofísicas: Lente gravitacional

  • Publicación
    LiteBIRD science goals and forecasts: a full-sky measurement of gravitational lensing of the CMB
    We explore the capability of measuring lensing signals in LiteBIRD full-sky polarization maps. With a 30 arcmin beam width and an impressively low polarization...
  • Publicación
    Long-term Monitoring, Time Delay, and Microlensing in the Gravitational Lens System Q0142-100
    We present 12 yr of monitoring of the gravitational lens Q0142-100 from the Teide Observatory. The data, taken from 1999 to 2010, comprise 105 observing nights...
  • Publicación
    MAGIC detection of sub-TEV emission from gravitationally lensed blazar QSO B0218+357
    The blazar QSO B0218+357 is the first gravitationally lensed blazar detected in the very high energy (VHE, E > 100 GeV) gamma-ray spectral range (Ahnen et al...
  • Publicación
    Mapping variations of redshift distributions with probability integral transforms
    We present a method for mapping variations between probability distribution functions and apply this method within the context of measuring galaxy redshift...
  • Publicación
    Mass calibration of DES Year-3 clusters via SPT-3G CMB cluster lensing
    We measure the stacked lensing signal in the direction of galaxy clusters in the Dark Energy Survey Year 3 (DES Y3) redMaPPer sample, using cosmic microwave...
  • Charla
    Matters of gravity
    Contrary to popular belief, on very large distance scales visible matter stubbornly refuses to "fall" according to the laws of gravity of both Newton and...
  • Publicación
    Measuring dark matter flows in merging clusters of galaxies
    The Rees-Sciama effect produced in mergers of galaxy clusters is discussed, and an analytical approximation to compute this effect from numerical simulations is...
  • Publicación
    Measuring Microlensing Using Spectra of Multiply Lensed Quasars
    We report on a program of spectroscopic observations of gravitationally lensed QSOs with multiple images. We seek to establish whether microlensing is occurring...
  • Publicación
    Measuring Supermassive Black Hole Masses: Correlation between the Redshifts of the Fe III UV Lines and the Widths of Broad Emission Lines
    We test the recently proposed black hole mass scaling relationship based on the redshift with respect to the quasar's rest frame of the Fe III λλ2039-2113 line...