Focal Interest
Focal Interest

Stellar, planetary, and galactic studies

External reference: https://openalex.org/T10039

  1. NUV-blue spirals show star-forming outer disks
    Study reveals why optically red spiral galaxies show ultraviolet-blue colors: quenched centers with active outer disks sustained by fresh gas accretion or galaxy interactions.
  2. VLBI and Gaia agree on many long-period variable star distances
    Compare VLBI and Gaia DR3 astrometric measurements of 43 long period variable stars, revealing complementary strengths for determining stellar distances and proper motions across different.
  3. SDSS-V catalogs Milky Way halo stars with new parameter pipeline
    SDSS-V all-sky spectroscopic survey produces validated stellar parameter catalog enabling discovery of distant halo substructures and chemically peculiar stars across the Milky Way.
  4. DM Tau disk shows non-thermal line broadening
    Bayesian analysis of molecular line observations confirms nonthermal broadening of 0.4 sound speeds in the DM Tau protoplanetary disk, providing evidence for turbulence.
  5. Deep Chandra observations of a relaxed z = 1.16 galaxy cluster
    Chandra X-ray observations of SPT-CL J2215-3537 resolve the cool core of this z = 1.16 relaxed galaxy cluster, establishing a high-redshift benchmark for cluster evolution studies.
  6. Supermassive stars may match JWST little red dot spectra
    Supermassive star models reproduce spectral signatures of JWST little red dots, suggesting these compact sources may be progenitors of the first supermassive black holes.
  7. RUBIES confirms many massive quiescent galaxies at 2 < z < 5
    Spectroscopic observations confirm that massive quiescent galaxies were surprisingly common at redshifts 2-5, challenging galaxy formation simulations.
  8. Milky Way circular velocity measured from stellar abundances
    A new data-driven method measures the Milky Way's circular velocity using element abundance gradients, deriving rotation parameters at the solar radius.
  9. SLAM estimates stellar parameters for BOSS M dwarfs
    Stellar parameters for SDSS-V M dwarfs derived using data-driven support vector regression on BOSS spectra, validated against multiple benchmarks with quantified systematic offsets.
  10. Three ultra-faint Milky Way satellite candidates were discovered
    Three ultra-faint Milky Way satellites identified in DELVE survey data, including the faintest known satellite in the outer halo and an ambiguous compact system.
  11. Tomographic analysis detects possible embedded planets in disks
    Tomographic analysis of molecular line observations enables detection of embedded planets in protoplanetary disks, revealing multiple planet candidates in HD 135344B and MWC 758.
  12. Large protoplanetary disks show widespread non-Keplerian gas motions
    Two-dimensional kinematic mapping of 15 protoplanetary disks reveals ubiquitous non-Keplerian deviations including spiral structures, with systematic differences between disk classifications.
  13. Vertical gas flows are widespread in protoplanetary disks
    Study of vertical gas flows in 14 protoplanetary disks using ALMA observations reveals ubiquitous vertical motions driven by diverse physical mechanisms during planet formation.