Influence of the scattering particle shape on the SiO2 silicate feature

Article Sidebar

PDF
Published: Sep 30, 2021
Abstract views: 164
PDF downloads: 102
DOI: https://doi.org/10.31059/aat.vol2.iss1.pp26-29
Keywords:
circumstellar disks comets quartz light scattering

Main Article Content

Dmitry Petrov
Crimean Astrophysical Observatory, Nauchny, 298409
Elena Zhuzhulina
Crimean Astrophysical Observatory, Nauchny, 298409
Alexander Savushkin
Crimean Astrophysical Observatory, Nauchny, 298409

Abstract

Silicate dust particles are part of many astronomical objects such as comets and circumstellar disks. In a spectrum, silicates exhibit a number of characteristic silicate emission features. To study these features, Mie’s theory is usually used. This theory assumes that the scattering object is an ideal sphere. In this work, we investigated the contribution of non-spherical quartz particles (SiO2) to these features. We studied the influence of the deviation from sphericity on the 10-micron silicate feature of quartz. It is shown that the deviation from sphericity has a significant effect on both the scattered light intensity and the scattering factor Qsca, and this effect increases with increasing scattering particle size. The main peculiarities of the 10-micron silicate feature have been studied for both prolate and oblate spheroids.

Downloads

Download data is not yet available.

Article Details

How to Cite
Petrov D., Zhuzhulina E., Savushkin A., 2021. Acta Astrophysica Taurica, vols. 2, no. 1, pp. 26–29. DOI: 10.31059/aat.vol2.iss1.pp26-29
Issue
Vol. 2 No. 1 (2021)
Section
Research articles
Copyright and publishing rights for texts published in Acta Astrophysica Taurica is retained by the authors, with first publication rights granted to the journal.Texts are free to use with proper attribution and link to the licensing (Creative Commons Attribution 4.0 International).

Creative Commons License

References

Beckwith S.V.W., Sargent A.I., Chini R.S., et al., 1990. Astron. J., vol. 99, p. 924.

Bregman J.D., Witteborn F.C., Allamandola L.J., et al., 1987. Astron. Astrophys., vol. 187, no. 1–2, pp. 616–620.

Campins H. and Ryan E., 1989. Astrophys. J., vol. 341, pp. 1059–1066.

Chornaya E., Zakharenko A.M., Zubko E.S., et al., 2020. Icarus, vol. 350, article id. 113907.

Dorschner J. and Henning T., 1995. Astron. Astrophys. Rev., vol. 6, no. 4, pp. 271–333.

FarafonovV.G., Il’in V.B., Prokop’evaM.S., Tulegenov A.R., Ustimov V.I., 2019. Optics and spectroskopy, vol. 126, no. 4, pp. 443–449. (In Russ.)

Hage J.I. and Greenberg J.M., 1990. Astrophys. J., vol. 361, pp. 251–259.

Hanner M.S., Tokunaga A.T., Golisch W.F., et al., 1987. Astron. Astrophys., vol. 187, pp. 653–660.

Hanner M.S., Newburn R.L., Gehrz R.D., et al., 1990. Astrophys. J., vol. 348, pp. 312–321.

Hanner M.S., Veeder G.J., Tokunaga A.T., 1992. Astron. J., vol. 104, pp. 386–393.

Hanner M.S., Lynch D.K., Russell R.W., 1993. Asteroids, Comets, Meteors 1993, Abstracts for the IAU Symposium 160. LPI Contribution, Houston: Lunar and Planetary Institute, vol. 810, p. 129.

Hanner M.S., Hackwell J.A., Russell R.W., et al., 1994. Icarus, vol. 112, pp. 490–495.

Hanner M.S., Gehrz R.D., Harker David E., et al., 1997. Earth Moon and Planets, vol. 79, no. 1, pp. 247–264.

Hanner M.S. and Brooke T.Y., 1998. Astron. J., vol. 502, pp. 871–882.

Hanner M.S. and Bradley J.P., 2004. In Festou M.C. et al. (Eds), Comets II. Tucson: University of Arizona Press, p. 555.

Hao L., Spoon H.W.W., Sloan G.C., et al., 2005. Astrophys. J., vol. 625, no. 2, pp. L75–L78.

Hayward T.L., Hanner M.S., Sekanina Z., 2000. Astrophys. J., vol. 538, pp. 428–455.

Henning T. and Meeus G., 2009. In Garcia P.J.V. (Ed.), Physical Processes in Circumstellar Disks around Young Stars. Chicago: Univ. Chicago Press, pp. 114–148.

Kearsley A.T., Borg J., Graham G.A., et al., 2008. Meteoritics Plan. Sci., vol. 43, no. 1, pp. 41–73.

Lee J.C., Kriss G.A., Chakravorty S., et al., 2013. Mon. Not. Roy. Astron. Soc., vol. 430, no. 4, pp. 2650–2679.

Lynch D.K., Russell R.W., Hackwell J.A., et al., 1992. Icarus, vol. 100, pp. 197–202.

Malfait K., Waelkens C., Waters L.B.F.M., et al., 1998. Astron. Astrophys., vol. 332, pp. L25–L28.

Mie G., 1908. Annalen der Physik, vol. 330, no. 3, pp. 377–445.

Mishchenko M.I., 1991. J. Opt. Soc. Am. A., vol. 8, pp. 871–882.

Mishchenko M.I., 1993. Appl. Opt., vol. 32, pp. 4652–4666.

Mishchenko M.I., Travis L.D., 1994. Opt. Commun., vol. 109, pp. 16–21.

Mishchenko M.I., Travis L.D., Mackowski D.W., 1996. J. Quant. Spectrosc. Radiat. Transfer, vol. 55, pp. 535–575.

Mischenko M.I., Hovenier J.W., Travis L.D., 2000. Light Scattering by Nonspherical Particles: Theory, Measurements, and Applications. Academic Press.

Petrov D., Synelnyk E., Shkuratov Y., et al., 2006. J. Quant. Spectrosc. Radiat. Transf., vol. 102, no. 1, pp. 85–110.

Petrov D., Savushkin A., Zhuzhulina E., 2020. Research Notes of the AAS, vol. 4, no. 9, p. 161.

Popova S., Tolstykh T., Vorobev V., 1972. Optics and spectroskopy, vol. 33, pp. 444–445. (In Russ.)

Potter A.E. Jr. and Morgan T.H., 1982. Lunar and Planetary Science Conference Proceedings, vol. 12, pp. 703–713.

Sargent B.A., Forrest W.J., Tayrien C.,et al.,2009. Astrophys. J., vol. 690, pp. 1193–1207.

Siebenmorgen R., Haas M., Krugel E., et al., 2005. Astrophys. J., vol. 436, p. L5.

Skrutskie M.F., Dutkevitch D., Strom S.E., et al., 1990. Astron. J., vol. 99, pp. 1187–1195.

Strom K.M., Strom S.E., Edwards S., et al., 1989. Astron. J., vol. 97, p. 1451.

Waelkens C., Malfait K., Waters L.B.F.M., 1997. Astrophys. Space Sci., vol. 255, no. 1/2, pp. 25–33.

Weintraub D.A., Sandell G., Duncan W.D., 1989. Astrophys. J. Lett., vol. 340, p. L69.

Wielaard D.J., Mishchenko M.I., Macke A., Carlson B.E., 1997. Appl. Opt., vol. 36, pp. 4305–4313.

Wooden D.H., Harker D.E., Woodward C.E., et al., 1999. Astrophys. J., vol. 517, pp. 1034–1058.