Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-23T15:13:20.515Z Has data issue: false hasContentIssue false
  • English
  • Français

Comparative study of 3.4 micron band features from carbon dust analogues obtained in pulsed plasmas

Published online by Cambridge University Press:  12 October 2020

Ioana Cristina Gerber ,
Alina Chiper ,
Valentin Pohoata Open the ORCID record for Valentin Pohoata [Opens in a new window] ,
Ilarion Mihaila  and
Ionut Topala Open the ORCID record for Ionut Topala [Opens in a new window]
Ioana Cristina Gerber
Affiliation:
Faculty of Physics, Iasi Plasma Advanced Research Center (IPARC), Alexandru Ioan Cuza University of Iasi, Bd. Carol I No. 11, Iasi, 700506, Romania email: [email protected]
Alina Chiper
Affiliation:
Faculty of Physics, Iasi Plasma Advanced Research Center (IPARC), Alexandru Ioan Cuza University of Iasi, Bd. Carol I No. 11, Iasi, 700506, Romania email: [email protected]
Valentin Pohoata
Affiliation:
Faculty of Physics, Iasi Plasma Advanced Research Center (IPARC), Alexandru Ioan Cuza University of Iasi, Bd. Carol I No. 11, Iasi, 700506, Romania email: [email protected]
Ilarion Mihaila
Affiliation:
Integrated Center of Environmental Science Studies in the North-Eastern Development Region (CERNESIM), Alexandru Ioan Cuza University of Iasi, Bd. Carol I No. 11, Iasi, 700506, Romania
Ionut Topala
Affiliation:
Faculty of Physics, Iasi Plasma Advanced Research Center (IPARC), Alexandru Ioan Cuza University of Iasi, Bd. Carol I No. 11, Iasi, 700506, Romania email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Syntheses of carbon dust analogues are key experiments in laboratory astrophysics, as an approach to study some chemical and topological features of interplanetary and interstellar carbon dust. We report a comparative experimental study for carbon dust analogues obtained in (1) an atmospheric pressure dielectric barrier discharge (DBD), fed with helium – saturated hydrocarbons gas mixtures, (2) a low pressure radio frequency (RF) discharge and (3) a pulsed laser deposition (PLD) experiment with a Nd:YAG laser and a graphite target. The aliphatic –C–H stretching band, known as the 3.4 micron feature, as well as the CH2/CH3 ratio, the H/C ratio value and the physical appearance at microscopic scale, show a variability that is influenced by the synthesis method and the experimental parameters of each specific technique.

Keywords

infrared: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S350: Laboratory Astrophysics: From Observations to Interpretation , April 2019 , pp. 237 - 240
Copyright
© International Astronomical Union 2020

References

Chiar, J. E., Tielens, A. G. G. M., Adamson, A. J., & Ricca, A. 2013, ApJ, 770, 78 CrossRefGoogle Scholar
Hodoroaba, B., Gerber, I. C., Ciubotaru, D., Mihaila, I., Dobromir, M., Pohoata, V., & Topala, I. 2018, MNRAS, 481, 2841 CrossRefGoogle Scholar
Maté, B., Molpeceres, G., Jiménez-Redondo, M., Tanarro, I., & Herrero, V. J. 2016, ApJ, 831, 51 CrossRefGoogle Scholar
Pino, T., Dartois, E., Cao, A.-T., Carpentier, Y., Chamaillé, Th., Vasquez, R., Jones, A. P., d’Hendecourt, L. & Bréchignac, Ph. 2008, A&A, 490, 665 Google Scholar