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.
|Numero di pagine||4|
|Rivista||THE ASTROPHYSICAL JOURNAL LETTERS|
|Stato di pubblicazione||Published - 2010|
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
Barbera, M., Jiménez Escobar, Muñoz Caro, Giarrusso, Collura, Cecchi-Pestellini, & Ciaravella (2010). Soft X-Ray Irradiation of Methanol Ice: Implication for H2CO Formation in Interstellar Regions. THE ASTROPHYSICAL JOURNAL LETTERS, 722, L45-L48.