Category: Astrophysics
Relativistic effects change synchrotron shock modeling accuracy
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in AstrophysicsNumerical model reveals that simplified approximations for synchrotron emission from relativistic shocks can be inaccurate by over an order of magnitude, biasing inferred properties of transients.
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.
Cored stellar systems can remain stable in cuspy dark matter halos
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in AstrophysicsSimulations demonstrate that cored stellar systems remain stable within cuspy dark matter halos over Hubble timescales, refuting recent claims that such configurations would falsify cold dark matter.
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.
