JWST MIRI MRS observations show the Galactic Center Minispiral gas has 1-2.5 solar metallicity, Wolf-Rayet driven ionization, significant Ni and Fe dust destruction, and harder radiation in compact structures near Sgr A*.
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5 Pith papers cite this work. Polarity classification is still indexing.
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2026 5representative citing papers
A 25-year Chandra catalog of 100 Sgr A* X-ray flares confirms that brighter flares are spectrally harder and strengthens prior correlations with duration and fluence.
First polarization measurements of MAXI J1744-294 reveal a common Faraday screen with RM = -63606 rad m^{-2} matching the Galactic center magnetar, confirming the transient's location in the nuclear star cluster and suggesting an intrinsic RM for Sgr A*.
The earliest 1.3 mm observations of GRB 260127A detect 6.9 mJy emission 12.6 minutes post-trigger with a later non-detection implying decline at least as fast as t^{-0.5}, consistent with forward or reverse shock scenarios.
Mid-infrared lines near Sgr A* exhibit no detectable variability during flares, because light-crossing and recombination timescales in the extended gas suppress responses, so the lines cannot constrain instantaneous UV flux.
citing papers explorer
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Ionization Structure and Metal Enrichment of the Galactic Center Minispiral Observed with JWST
JWST MIRI MRS observations show the Galactic Center Minispiral gas has 1-2.5 solar metallicity, Wolf-Rayet driven ionization, significant Ni and Fe dust destruction, and harder radiation in compact structures near Sgr A*.
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The Demographics of Sagittarius A* X-ray Flares over 25 Years with Chandra
A 25-year Chandra catalog of 100 Sgr A* X-ray flares confirms that brighter flares are spectrally harder and strengthens prior correlations with duration and fluence.
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Detection and Evolution of Linear Polarization of the Galactic Center Transient MAXI J1744-294
First polarization measurements of MAXI J1744-294 reveal a common Faraday screen with RM = -63606 rad m^{-2} matching the Galactic center magnetar, confirming the transient's location in the nuclear star cluster and suggesting an intrinsic RM for Sgr A*.
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Rapid-response 1.3 mm Observations of GRB 260127A with the Submillimeter Array
The earliest 1.3 mm observations of GRB 260127A detect 6.9 mJy emission 12.6 minutes post-trigger with a later non-detection implying decline at least as fast as t^{-0.5}, consistent with forward or reverse shock scenarios.
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Infrared Line Diagnostics Fail to Constrain Sgr A*'s UV Output
Mid-infrared lines near Sgr A* exhibit no detectable variability during flares, because light-crossing and recombination timescales in the extended gas suppress responses, so the lines cannot constrain instantaneous UV flux.