Results 131 to 140 of about 2,475,342 (218)
Expansion Signatures in 35 H II Regions Traced by SOFIA [C II] Emission
The Astrophysical JournalWe analyze the expansion signatures of 35 H II regions mapped in [C II ] 158 μ m emission by the Stratospheric Observatory for Infrared Astronomy. The [C II ] emission primarily traces photodissociation regions (PDRs) at the transition between ionized ...
T. Faerber +8 more
doaj +1 more source
SPHEREx Mapping of Diffuse PAH and H ii Emission in the Galactic Plane
The Astrophysical JournalWe present preliminary SPHEREx maps of diffuse Galactic emission tracing polycyclic aromatic hydrocarbons (PAHs) and ionized hydrogen gas, and we study their relationship across the Galactic plane.
Giulia Murgia +31 more
doaj +1 more source
The Astronomical JournalWe present spatially resolved spectroscopic observations of 10 isolated Galactic H II regions using data from the LAMOST Medium-Resolution Spectroscopic Survey of Nebulae (LAMOST MRS-N).
Wei Zhang +11 more
doaj +1 more source
Water gas discs in exo-asteroid belts
Astronomy & AstrophysicsContext. Observations of tens of secondary CO gas discs associated with cold exo-Kuiper belts together with other arguments have led to the idea initially investigated in the Solar System that water ice could also sublimate in exo-asteroid belts ...
Huet Paul, Kral Quentin, Manchon Louis
doaj +1 more source
The Astrophysical JournalMolecular hydrogen (H _2 ) formation and dissociation are key processes that drive the gas life cycle in galaxies. Using the SImulating the LifeCycle of Molecular Clouds zoom-in simulation suite, we explore the utility of future observations of H _2 ...
Blakesley Burkhart +13 more
doaj +1 more source
The Astrophysical JournalWe present spatially resolved Atacama Large Millimeter/submillimeter Array Band 9 observations of the [C ii ] 158 μ m fine structure line from an optically selected quasar, SDSS J100038.01+020822.4 (J1 000 ), at z = 1.8275.
Christopher Rooney +9 more
doaj +1 more source
The Relative Cold-trapping Likelihood of Water on Airless Rocky Bodies
The Planetary Science JournalMany planetoids are airless, but despite the lack of a collisional atmosphere, these bodies can experience volatile migration toward the polar regions via the exosphere.
T. Giang Nguyen +2 more
doaj +1 more source
Photodissociation dynamics of chloroethylenes at 193 nanometers.
, 1995 Photodissociation dynamics of chloroethylenes at 193 ...
Guoxin. He (7976276)
core +2 more sources
Magnetic Field Strengths in Photodissociation Regions
, 2016 We measure carbon radio recombination line (RRL) emission at 5.3 GHz toward four H ii regions with the Green Bank Telescope to determine the magnetic field strength in the photodissociation region (PDR) that surrounds the ionized gas. Roshi suggests that
Roshi, D. Anish +5 more
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Photodissociation of HOD via the 1351;B1 state: OD OH branching ratioand OD bond dissociation energy
, 2011 Photodissociation of HOD via the 1351;B1 state: OD/OH branching ratioand OD bond dissociation ...
袁开军 +6 more
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