First JWST spectroscopy of GJ 504 b detects multiple molecules, retrieves atmospheric parameters including super-solar metallicity, and finds tentative support for planet-like formation.
Reports on Progress in Physics , year = 1999, month = feb, volume =
6 Pith papers cite this work. Polarity classification is still indexing.
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2026 6representative citing papers
SOFIA observations provide the first experimental magnetic-dipole hyperfine constants for [13C II] and refined centroid frequency using astronomical data.
Native-resolution retrievals on 0.97-5.27 micron JWST spectra of VHS 1256 b find a ~79% cloud deck, solar-like metallicity and C/O, and depleted 18O in a partially cloudy disequilibrium atmosphere.
Observational study of MBM12 shows CO-to-H2 conversion factor near galactic average with density-dependent variations, high virial parameters decreasing at small scales, broken power-law mass-size relations indicating external pressure, and magnetic field orientation transition at N(H2) = 4.5e21 cm-
Retrievals on six isolated brown dwarfs yield near-solar C/O (0.51-0.63), metallicities, and 12C/13C ratios (91-155) supporting molecular cloud fragmentation origin.
Ionization rates in the envelopes of NGC-1333 IRAS4A, L1448-C, and L1157 reach 1e-16 to 1e-13 s^{-1}, far above the ISM baseline of 6e-17 s^{-1}.
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Evidence of Enhanced Ionization in Protostellar Envelopes
Ionization rates in the envelopes of NGC-1333 IRAS4A, L1448-C, and L1157 reach 1e-16 to 1e-13 s^{-1}, far above the ISM baseline of 6e-17 s^{-1}.