Author

K. Getman

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Preprint Oct 2026

Chandra-JWST Probing the Effects of Moderate X-Ray Superflares on Protoplanetary Disks

Powerful X-ray flares from young stars may rapidly alter the physical and chemical conditions of their planet-forming disks, but direct observational tests remain scarce. We present a Chandra-JWST/NIRSpec study of infrared spectral variability associated with pre-main-sequence (PMS) X-ray flares in the Orion Nebula. Co...

K. Getman, K. Luhman, B. Portilla-Revelo et al. · 0 citations

Open access Sep 2026

The effect of X-ray and accretion variability on mid-infrared lines in the young disk-bearing binary DQ Tau

A star's radiation field is the main energy source of a planet-forming disk. Stellar photons -- from X-rays to optical -- are reprocessed in the inner protoplanetary disk, and this process enables mid-infrared (mid-IR) diagnostics of the disk's physical conditions. Most pre-main-sequence stars accrete at moderate rates...

B. Portilla-Revelo, K. Getman, Á. Kóspál et al. · Astronomy & Astrophysics · 0 citations