Tag: Stellar, planetary, and galactic studies
Milky Way circular velocity measured from stellar abundances
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in AstrophysicsA new data-driven method measures the Milky Way’s circular velocity using element abundance gradients, deriving rotation parameters at the solar radius.
SLAM estimates stellar parameters for BOSS M dwarfs
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in AstronomyStellar parameters for SDSS-V M dwarfs derived using data-driven support vector regression on BOSS spectra, validated against multiple benchmarks with quantified systematic offsets.
Three ultra-faint Milky Way satellite candidates identified
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in AstronomyThree ultra-faint Milky Way satellites identified in DELVE survey data, including the faintest known satellite in the outer halo and an ambiguous compact system.
Tomographic line analysis identifies possible embedded planets in disks
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in AstrophysicsTomographic analysis of molecular line observations enables detection of embedded planets in protoplanetary disks, revealing multiple planet candidates in HD 135344B and MWC 758.
Large protoplanetary disks show widespread non-Keplerian gas motions
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in AstrophysicsTwo-dimensional kinematic mapping of 15 protoplanetary disks reveals ubiquitous non-Keplerian deviations including spiral structures, with systematic differences between disk classifications.
Vertical gas flows are widespread in protoplanetary disks
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in AstrophysicsStudy of vertical gas flows in 14 protoplanetary disks using ALMA observations reveals ubiquitous vertical motions driven by diverse physical mechanisms during planet formation.
