Naslov
Properties of Circumstellar Dust in Symbiotic Miras

Autori
Kotnik-Karuza, Dubravka ; Jurkić, Tomislav ; Friedjung, Michael

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstract Book of the International Astronomical Union XXVIth General Assembly: Symposium 240 / Hartkopf, W.I. ; Guinan, E. F., Harmanec, P. - Pariz : International Astronomical Union, 2006, 230-230

Skup
International Astronomical Union General Assembly: Symposium 240 (27 ; 2006)

Mjesto i datum
Prag, Češka Republika, 22.07.2006. - 25.07.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
stars: binaries: symbiotic; stars: circumstellar matter; stars: AGB and post-AGB; infrared: stars; radiative transfer

Sažetak
We present a study of the properties of circumstellar dust in symbiotic Miras during sufficiently long time intervals of minimal obscuration. The published JHKL magnitudes of o Ceti, RX Pup, KM Vel, V366 Car, V835 Cen, RR Tel and R Aqr have been collected. In order to investigate their long-term variations, we removed the Mira pulsations to correct their light curves. Assuming spherical temperature distribution of the dust in the close neighbourhood of the Mira, the DUSTY code was used to solve the radiative transfer in order to determine the dust temperature and its properties in each particular case. The preliminary results of this systematic study of dust envelopes in symbiotic stars with Miras as cool components provide information on nature of dust in these objects.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA