Low Water Outgassing from (24) Themis and (65) Cybele: 3.1 μm Near-IR Spectral Implications

Low Water Outgassing from (24) Themis and (65) Cybele: 3.1 μm Near-IR Spectral Implications

Asteroids (24) Themis and (65) Cybele have an absorption feature at 3.1 μ m reported to be directly linked to surface water ice. We searched for water vapor escaping from these asteroids with the Herschel Space Observatory Heterodyne Instrument for the Far Infrared. While no H 2 O line emission was...

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Veröffentlicht in:Astrophysical journal. Letters 2020-08, Vol.898 (2), p.L45
Hauptverfasser: O’Rourke, L., Müller, T. G., Biver, N., Bockelée-Morvan, D., Hasegawa, S., Valtchanov, I., Küppers, M., Fornasier, S., Campins, H., Fujiwara, H., Teyssier, D., Lim, T.
Format: Artikel
Sprache:eng
Schlagworte:
Absorption
Albedo
Asteroids
Far infrared radiation
Ice
Inertia
Infrared cameras
Infrared instruments
Infrared photometry
Infrared spectrometers
Observatories
Outgassing
Sciences of the Universe
Space telescopes
Specific heat
Surface chemistry
Surface water
Thermal inertia
Thermophysical models
Water ice
Water vapor
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Zusammenfassung:Asteroids (24) Themis and (65) Cybele have an absorption feature at 3.1 μ m reported to be directly linked to surface water ice. We searched for water vapor escaping from these asteroids with the Herschel Space Observatory Heterodyne Instrument for the Far Infrared. While no H 2 O line emission was detected, we obtain sensitive 3 σ water production rate upper limits of Q (H 2 O) 
ISSN:2041-8205
2041-8213
DOI:10.3847/2041-8213/aba62b