Soft X-ray Irradiation of Methanol Ice: Implication for H2CO Formation in Interstellar Regions

Details Soft X-ray Irradiation of Methanol Ice: Implication for H2CO Formation in Interstellar Regions Soft X-ray Irradiation of Methanol Ice: Implication for H2CO Formation in Interstellar Regions

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apj...722l..45c&link_type=abstract

The Astrophysical Journal Letters, Volume 722, Issue 1, pp. L45-L48 (2010).

Astronomy and Astrophysics

Astronomy

2

Ism: Molecules, Methods: Laboratory, X-Rays: Ism

Scientific paper

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 molecule-1, 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.

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