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Variation of the FIR/submm optical properties of silicate dust analogues at low temperature: implications for the observations of interstellar cold dust emission

Published online by Cambridge University Press:  13 February 2013

K. Demyk ,
C. Meny ,
A. Coupeaud ,
C. Nayral ,
H. Leroux ,
C. Depecker ,
G. Creff ,
J.-B. Brubach  and
P. Roy
K. Demyk
Affiliation:
Université de Toulouse, UPS-OMP, IRAP, Toulouse, France
C. Meny
Affiliation:
Université de Toulouse, UPS-OMP, IRAP, Toulouse, France
A. Coupeaud
Affiliation:
CNRS, IRAP, 9 avenue colonel Roche, BP. 44346, 31028 Toulouse Cedex 4, France
C. Nayral
Affiliation:
Université de Toulouse, INSA, CNRS, LPCNO, 31077 Toulouse, France
H. Leroux
Affiliation:
Université de Toulouse, UPS-OMP, IRAP, Toulouse, France
C. Depecker
Affiliation:
UMET, UMR 8207, Université Lille 1, CNRS, 59655 Villeneuve d’Ascq, France
G. Creff
Affiliation:
Université de Toulouse, UPS-OMP, IRAP, Toulouse, France
J.-B. Brubach
Affiliation:
Université de Toulouse, UPS-OMP, IRAP, Toulouse, France
P. Roy
Affiliation:
Ligne AILES – Synchrotron SOLEIL, L’Orme des Merisiers, 91192 Gif-sur-Yvette, France

Abstract

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We present here the latest results from experimental studies aiming at measuring the Mass Absorption Coefficient (MAC) of interstellar silicate dust analogues at low temperatures in the far infrared and submillimetre domains which are necessary for the analysis of astronomical data. These results show that above 100 μm, the MAC of amorphous silicate nano-grains has a complex dependence with the grain temperature and with the wavelength. This has to be considered when interpreting astronomical observations to avoid errors on the derived parameters such as the dust mass and its physical and chemical properties.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 58: ECLA - European Conference on Laboratory Astrophysics , 2012 , pp. 405 - 408
Copyright
© The Author(s) 2013

References

Références

Agladze, N.I., Sievers, A.J., Jones, , et al., 1996, ApJ, 462 , 1026 CrossRef
Boudet, N., Mutschke, H., Nayral, C., et al., 2005, ApJ, 633 , 272 CrossRef
Brubach, J., Manceron, L., Rouziéres, M., et al., 2010, in American Institute of Physics Conf. Series, 1214, edited by A. Predoi-Cross & B.E. Billinghurst, 8184
Coupeaud, A., Demyk, K., Meny, C., & Nayral C., 2010, Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, edited by S. Boissier, M. Heydari-Malayeri, R. Samadi and D. Valls-Gabaud, 205
Coupeaud, A., Demyk, K., Meny, C., et al., 2011, A&A, 535 , A124
Désert, F., Macías-Pérez, J.F., Mayet, F., et al., 2008, A&A, 481 , 411
Dupac, X., Bernard, J., Boudet, N., et al., 2003, A&A, 404 , L11
Hildebrand, R., 1983, Q. Jl R. Astr. Soc., 24 , 267
Juvela, M., & Ysard, N., 2012, A&A, 539 , A71
Li, A., & Draine, B.T., 2001, ApJ, 554 , 778 CrossRef
Mennella, V., Brucato, J.R., Colangeli, L., et al., 1998, ApJ, 496 , 1058 CrossRef
Meny, C., Gromov, V., Boudet, N., et al., 2007, A&A, 468 , 171
Paradis, D., Veneziani, M., Noriega-Crespo, A., et al., 2010, A&A, 520 , L8
Paradis, D., Bernard, J.-P., Meny, C., & Gromov, V., 2011, A&A, 534 , A118
Planck Collaboration, 2011, A&A, 536 , A22
Reach, W.T., Dwek, E., Fixsen, D.J., et al., 1995, ApJ, 451 , 188 CrossRef
Shetty, R., Kauffmann, J., Schnee, S., et al., 2009, ApJ, 696 , 676 CrossRef