Astrofísicas: Disco de la Vía Láctea

  • Publicación
    A Case against a Significant Detection of Precession in the Galactic Warp

    Recent studies of warp kinematics using Gaia DR2 data have produced detections of warp precession for the first time, which greatly exceeds theoretical...

  • Publicación
    A Tale of Two Disks: Mapping the Milky Way with the Final Data Release of APOGEE

    We present new maps of the Milky Way disk showing the distribution of metallicity ([Fe/H]), α-element abundances ([Mg/Fe]), and stellar age, using a sample of...

  • Publicación
    Chemical Cartography with APOGEE: Mapping Disk Populations with a 2-process Model and Residual Abundances

    We apply a novel statistical analysis to measurements of 16 elemental abundances in 34,410 Milky Way disk stars from the final data release (DR17) of APOGEE-2...

  • Publicación
    Diagonal Ridge Pattern of Different Age Populations Found in Gaia-DR2 with LAMOST Main-sequence Turnoff and OB-type Stars

    We revisit the diagonal ridge feature (diagonal distributions in the R, v φ plane) found in Gaia and present a timing analysis for it between Galactocentric...

  • Publicación
    Evidence for Population-dependent Vertical Motions and the Long-lived Nonsteady Lopsided Milky Way Warp

    We present a Galactic disk vertical velocity analysis using OB type stars (OB stars), red clump (RC) stars, and main-sequence turnoff (MSTO) stars with...

  • Publicación
    Exploring the Galactic Warp through Asymmetries in the Kinematics of the Galactic Disk

    Previous analyses of large databases of Milky Way stars have revealed the stellar disk of our Galaxy to be warped and that this imparts a strong signature on...

  • Publicación
    Mapping the Milky Way Disk with Gaia DR3: 3D Extended Kinematic Maps and Rotation Curve to ≈30 kpc

    We apply a statistical deconvolution of the parallax errors based on Lucy's inversion method (LIM) to the Gaia DR3 sources to measure their 3D velocity...

  • Noticia
    ¿Se mueve la Vía Láctea como una peonza?

    Una investigación realizada por los astrofísicos del Instituto de Astrofísica de Canarias (IAC) Žofia Chrobáková, estudiante de doctorado del IAC y la...