TY - JOUR
T1 - Soft X-Ray Irradiation of Methanol Ice: Implication for H2CO Formation in Interstellar Regions
AU - Barbera, Marco
AU - Jiménez Escobar, null
AU - Muñoz Caro, null
AU - Giarrusso, null
AU - Collura, null
AU - Cecchi-Pestellini, null
AU - Ciaravella, null
PY - 2010
Y1 - 2010
N2 - We performed 0.3 keV soft X-ray irradiation of a methanol ice at 8 K under ultra-high vacuum conditions. To the best of our knowledge, this is the first time that soft X-rays are used to study photolysis of ice analogs. Despite the low irradiation dose of 10−6 photons per molecule, the formation of formaldehyde has been observed. The results of our experiments suggest that X-rays may be a promising candidate to the formation of complex molecules in regions where UV radiation is severely inhibited.
AB - We performed 0.3 keV soft X-ray irradiation of a methanol ice at 8 K under ultra-high vacuum conditions. To the best of our knowledge, this is the first time that soft X-rays are used to study photolysis of ice analogs. Despite the low irradiation dose of 10−6 photons per molecule, the formation of formaldehyde has been observed. The results of our experiments suggest that X-rays may be a promising candidate to the formation of complex molecules in regions where UV radiation is severely inhibited.
KW - ISM: molecules – methods: laboratory – X-rays: ISM
KW - ISM: molecules – methods: laboratory – X-rays: ISM
UR - http://hdl.handle.net/10447/56779
M3 - Article
VL - 722
SP - L45-L48
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
SN - 2041-8205
ER -