The existence of negative ions in interstellar clouds has been associated for several decades with the process of radiative electron attachment. In this Letter, we report compelling evidence supporting the fact that the radiative attachment of a low-energy electron is inefficient to form the carbon chain anions CN-, C3N-, and C5N- detected in interstellar clouds. The validity of the approach is confirmed by good agreement with experimental data obtained for the inverse photodetachment process, which represents the major cause of anion destruction in interstellar space. As a consequence, we suggest alternative models that could explain the formation of anions
The elementary mechanisms through which molecular polyynes could form stable negative ions after int...
The low-mass protostellar region L1527 is unusual because it contains observable abundances of unsat...
Until a decade ago, the only anion observed to play a prominent role in astrophysics was H–. The bou...
A first-principle theoretical approach to study the process of radiative electron attachment is deve...
Author Institution: Departments of Physics and Astronomy, and Chemical Physics Program, The Ohio Sta...
The mechanisms of formation and destruction of molecular anions have become a field of special inter...
Recently, several negative molecular ions, CnN- (n = 1, 3, 5) and CnH- (n = 4, 6, 8), were observed ...
The existence of negative molecular ions in space has been known for over a decade. Despite the dete...
Author Institution: Departments of Physics, Astronomy \& Chemistry, The Ohio State University, Colum...
Electron attachment to NCCCCN, dicyanoacetylene (2-butynedinitrile), has been observed. Metastable p...
We have developed an approach based on first principles to study the process of radiative electron a...
L’étude des mécanismes de formation et de destruction des anions moléculaires est devenu un champ d’...
9 pags., 6 figs., 7 tabs., 1 app.We report on the first detection of C3N- and C5N- towards the cold ...
For decades astronomers and astrophysicists believed that only positively charged ions were worthy o...
The low-mass protostellar region L1527 is unusual because it contains observable abundances of unsat...
The elementary mechanisms through which molecular polyynes could form stable negative ions after int...
The low-mass protostellar region L1527 is unusual because it contains observable abundances of unsat...
Until a decade ago, the only anion observed to play a prominent role in astrophysics was H–. The bou...
A first-principle theoretical approach to study the process of radiative electron attachment is deve...
Author Institution: Departments of Physics and Astronomy, and Chemical Physics Program, The Ohio Sta...
The mechanisms of formation and destruction of molecular anions have become a field of special inter...
Recently, several negative molecular ions, CnN- (n = 1, 3, 5) and CnH- (n = 4, 6, 8), were observed ...
The existence of negative molecular ions in space has been known for over a decade. Despite the dete...
Author Institution: Departments of Physics, Astronomy \& Chemistry, The Ohio State University, Colum...
Electron attachment to NCCCCN, dicyanoacetylene (2-butynedinitrile), has been observed. Metastable p...
We have developed an approach based on first principles to study the process of radiative electron a...
L’étude des mécanismes de formation et de destruction des anions moléculaires est devenu un champ d’...
9 pags., 6 figs., 7 tabs., 1 app.We report on the first detection of C3N- and C5N- towards the cold ...
For decades astronomers and astrophysicists believed that only positively charged ions were worthy o...
The low-mass protostellar region L1527 is unusual because it contains observable abundances of unsat...
The elementary mechanisms through which molecular polyynes could form stable negative ions after int...
The low-mass protostellar region L1527 is unusual because it contains observable abundances of unsat...
Until a decade ago, the only anion observed to play a prominent role in astrophysics was H–. The bou...