Circumstellar Dust in Symbiotic Novae (CROSBI ID 670065)
Prilog sa skupa u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Jurkić, Tomislav ; Kotnik-Karuza, Dubravka
engleski
Circumstellar Dust in Symbiotic Novae
We present a model of inner dust regions around the cool Mira component of the two symbiotic novae, RR Tel and HM Sge, based on the near-IR photometry, ISO spectra and mid-IR interferometry. The dust properties were determined using the DUSTY code. A compact circumstellar silicate dust shell with inner dust shell temperatures between 900 K and 1300 K and of moderate optical depth can explain all the observations. RR Tel shows the presence of an equatorially enhanced dust density during minimum obscuration. Obscuration events are explained by an increase in optical depth caused by the newly condensed dust. The mass loss rates are significantly higher than in intermediate-period single Miras but in agreement with longer-period O-rich AGB stars.
AGB stars, symbiotic binaries, radiative transfer, numerical modelling
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Podaci o prilogu
159-162.
2015.
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objavljeno
10.1051/eas/1571035
Podaci o matičnoj publikaciji
EAS publications series
Lagadec, E. ; Millour, F. ; Lanz, T.
Lahti: EAS Publications Series
978-2-7598-1907-2
1633-4760
1638-1963
Podaci o skupu
The Physics of Evolved Stars
predavanje
08.06.2015-12.06.2015
Nica, Francuska