Detection of complex organic molecules in a prestellar core: a new challenge for astrochemical models

By A. Bacmann, V. Taquet, A. Faure, C. Kahane, Cecilia Ceccarelli. 2012

276 citations recorded by the source corpus.

Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Spectroscopy

View Paper: https://www.semanticscholar.org/paper/18cb1894bff1931852a0c9dec31f5d270f6caf56

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. R. Garrod
2. E. Herbst
3. P. Caselli
4. V. Wakelam
5. Cecilia Ceccarelli
6. K. Oberg
7. E. Bergin
8. M. Ruaud

In Atomic and Molecular Physics, and Optics

1. R. Garrod
2. E. Bergin
3. K. Oberg
4. P. Caselli
5. A. Vasyunin
6. E. V. van Dishoeck
7. V. Wakelam
8. H. Linnartz

In Spectroscopy

1. R. Garrod
2. P. Caselli
3. Cecilia Ceccarelli
4. V. Wakelam
5. E. Herbst
6. K. Oberg
7. E. Bergin
8. M. Ruaud

Citations in the corpus

• Complex organic molecules in protoplanetary disks (2013, background): “…Vasyunin & Herbst (2013) suggested reactive desorption from grain surfaces followed by radiative associationin the gas phase as a potential mechanism for the production of several complex molecules recently detected in dark clouds and prestellar cores (Bacmann et al. 2012; Cernicharo et al. 2012).”
• THE ORIGIN OF COMPLEX ORGANIC MOLECULES IN PRESTELLAR CORES (2014, background): “Important non-detections include CH3OCH3, HCOOCH3 and CH3O, which were, on the contrary, detected in other prestellar cores (Öberg et al. 2010; Cernicharo et al. 2012; Bacmann et al. 2012).”
• Grain Surface Models and Data for Astrochemistry (2017, background): “High sensitivity observations have shown that complex organic molecules are also present in the gas phase in cold environments (∼ 10 K), albeit at a low level with respect to molecular hydrogen (Öberg et al. 2010, 2011; Cernicharo et al. 2012; Bacmann et al. 2012; Vastel et al. 2014).”
• Gas and grain chemical composition in cold cores as predicted by the Nautilus three-phase model (2016, background): “However, the recent detection of molecules such as methyl formate or dimethyl ether in cold regions (Cernicharo et al. 2012; Bacmann et al. 2012) have challenged models and brought some authors (see Balucani et al. 2015, for example) to reassess the relative contribution of gas phase reactions…”
• Binding energies: New values and impact on the efficiency of chemical desorption (2017, background): “The observation of complex organic molecules in cold and dense environments of the interstellar medium has increased the interest of the community onto such processes (Bacmann et al. 2012; Cernicharo et al. 2012; Vastel et al. 2014).”
• H-atom addition and abstraction reactions in mixed CO, H2CO and CH3OH ices – an extended view on complex organic molecule formation (2016, background): “In particular, methyl formate, acetaldehyde, dimethyl ether and ketene have been detected in the cold pre-stellar core L1689B (Bacmann et al. 2012).”
• Formation of complex organic molecules in cold objects: the role of gas-phase reactions (2015, background): “Evidently, a similar factor may affect the COMs abundance derived in the other cold regions (Bacmann et al. 2012; Cernicharo et al. 2012).”
• Astrochemistry and compositions of planetary systems (2020, background): “of this initial organic ice reservoir is converted into more complex organics in interstellar clouds (Öberg et al. 2010; Bacmann et al. 2012; Cernicharo et al. 2012; Vastel et al. 2014; Jiménez-Serra et al. 2016; Scibelli and Shirley 2020).”
• REACTIVE DESORPTION AND RADIATIVE ASSOCIATION AS POSSIBLE DRIVERS OF COMPLEX MOLECULE FORMATION IN THE COLD INTERSTELLAR MEDIUM (2013, methodology): “We derived the observed fractional abundances in these sources by dividing the observed column densities as presented in Bacmann et al. (2012) and Cernicharo et al. (2012) by the column densities of molecular hydrogen in L1689b and B1-b.”
• Formation of Complex Molecules in Prestellar Cores: A Multilayer Approach (2017, background): “Also, for comparison, abundances of COMs in L1689B and B1-b are shown, taken from Bacmann et al. (2012) and Cernicharo et al. (2012).”
• Our astrochemical heritage (2012, background): “Consequently, it is not yet clear whether models are able to reproduce the abundances of complex molecules observed by [25].”