Cosmic ray induced explosive chemical desorption in dense clouds

By C. J. Shen, J. Greenberg, W. Schutte, E. F. Dishoeck. 2004

241 citations recorded by the source corpus.

Subfields: Astronomy and Astrophysics, Atmospheric Science

View Paper: https://www.semanticscholar.org/paper/8a517f6ef37bd335c862a682aa74867ac1f42081

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. E. Dishoeck
2. R. Garrod
3. P. Caselli
4. Cecilia Ceccarelli
5. Simon Bruderer
6. E. Bergin
7. K. Oberg
8. V. Wakelam

In Atmospheric Science

1. R. Garrod
2. P. Caselli
3. Cecilia Ceccarelli
4. E. Dishoeck
5. E. Bergin
6. K. Oberg
7. Simon Bruderer
8. V. Wakelam

Citations in the corpus

• Formation rates of complex organics in UV irradiated CH3OH-rich ices I: Experiments (2009, background): “In most experiments, the ices are exposed to a total UV fluence(i.e. total flux integrated over the time of the experiment) of∼ 2.4× 1017 cm−2, which is comparable to the UV fluence in a cloud core after a million years with a UV flux of 104 cm−2 s−1 (Shen et al. 2004).”
• The warm gas atmosphere of the HD 100546 disk seen by Herschel - Evidence of a gas-rich, carbon-poor atmosphere? (2012, methodology): “To simulate cosmic-ray induced desorption, a small background UV flux corresponding to 104 photons cm−2 s−1 (Shen et al. 2004) is added to the stellar UV flux.”
• Cold Dark Clouds: The Initial Conditions for Star Formation (2007, background): “However, large questions remain regarding the nature of the grain surface catalysis in this cold environment and the strength of the mechanisms that could return molecules to the gas (e.g. Leger et al. 1985; Bringa & Johnson 2004; Shen et al. 2004).”
• Photodesorption of water ice - A molecular dynamics study (2008, background): “The cosmic ray induced UV flux inside dense clouds is about 104 cm−2s−1 (Shen et al. 2004).”
• The chemical history of molecules in circumstellar disks - I. Ices (2009, background): “The gas-phase abundances can also be enhanced by allowing for photodesorption of the ices in addition to the thermal desorption considered here (Shen et al. 2004; Öberg et al. 2007, 2009).”
• THE SPITZER ICE LEGACY: ICE EVOLUTION FROM CORES TO PROTOSTARS (2011, background): “Ices are continuously exposed to cosmic rays and cosmic-ray induced UV photons (Shen et al. 2004) and other ‘late’ ice features may also depend on cosmicrays, directly or indirectly.”
• Photodesorption of ices I: CO, N₂, and CO₂ (2008, background): “For a typical galactic cosmic ray flux, the resulting UV photon flux is of the order of 104 photons cm−2 s−1 with a factor of 3 uncertainty (Shen et al. 2004).”
• Binding energies: New values and impact on the efficiency of chemical desorption (2017, background): “The partial or entire heating of grains due to cosmic-ray particle collisions has been investigating by many authors (Leger et al. 1985; Hasegawa & Herbst 1993; Willacy & Millar 1998; Shen et al. 2004).”
• Gas and grain chemical composition in cold cores as predicted by the Nautilus three-phase model (2016, methodology): “For the standard interstellar UV photons field, we set FUV = 1.0 × 108 photons cm−2 s−1 (Öberg et al. 2007) and FUV-CR = 1.0× 104 photons cm−2 s−1 (Shen et al. 2004).”
• Our astrochemical heritage (2012, background): “cosmic-ray impacts with H2 molecules (Prasad and Tarafdar 1983; Gredel et al. 1989; Shen et al. 2004), although molecular hydrogen formation (Willacy and Millar 1998; Roberts et al.”
• PHOTODESORPTION OF ICES. II. H2O AND D2O (2008, methodology): “In addition to the external UV field a cosmic ray induced field is approximated by setting a lower limit on G0 of 10 −4 (Shen et al. 2004).”
• A COLD COMPLEX CHEMISTRY TOWARD THE LOW-MASS PROTOSTAR B1-b: EVIDENCE FOR COMPLEX MOLECULE PRODUCTION IN ICES (2010, background): “…evaporation of ices, which can be broadly divided into two categories: ice evaporation due to grain sputtering in shocks and less violent non-thermal ice evaporation due to UV irradiation, cosmic rays or release of chemical energy (Jones et al. 1996; Shen et al. 2004; Garrod et al. 2007).”
• The Nine Lives of Cosmic Rays in Galaxies (2015, background): “More importantly, the direct CR interactions with ice mantles tend to be less important than photo-desorption and photo-processing caused by the CR induced UV radiation described in the preceding subsection (Shen et al. 2004).”