The Viscous Decretion Disk Model of the Classical Be Star beta CMi Revisited

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Viscous Decretion Disk Model of the Classical Be Star beta CMi Revisited

Popis výsledku v původním jazyce

We revisit the viscous decretion disk (VDD) model of the classical Be star beta CMi as presented by Klement et al. (2015) using an updated version of the radiative transfer code HDUST. A software bug was causing the mean intensities to be slightly underestimated in the equatorial region of the disk with small but detectable effects on the disk temperature and emergent spectrum. The new model fixes an unexplained feature of the original model, which was able to reproduce the observations only when considering a dual density behavior: a steep density fall-off in the very inner parts of the disk followed by a shallower density profile. The new model is able to reproduce all the observables reasonably well using a single power law for the density profile throughout the entire disk, as predicted by the VDD model. All the other original conclusions, most importantly the reported truncation of the disk at a distance of 35 stellar equatorial radii from the central star, remain unchanged.

Název v anglickém jazyce

The Viscous Decretion Disk Model of the Classical Be Star beta CMi Revisited

Popis výsledku anglicky

We revisit the viscous decretion disk (VDD) model of the classical Be star beta CMi as presented by Klement et al. (2015) using an updated version of the radiative transfer code HDUST. A software bug was causing the mean intensities to be slightly underestimated in the equatorial region of the disk with small but detectable effects on the disk temperature and emergent spectrum. The new model fixes an unexplained feature of the original model, which was able to reproduce the observations only when considering a dual density behavior: a steep density fall-off in the very inner parts of the disk followed by a shallower density profile. The new model is able to reproduce all the observables reasonably well using a single power law for the density profile throughout the entire disk, as predicted by the VDD model. All the other original conclusions, most importantly the reported truncation of the disk at a distance of 35 stellar equatorial radii from the central star, remain unchanged.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

B(E) PHENOMENON: FORTY YEARS OF STUDIES

ISBN

978-1-58381-900-5

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

39-44

Název nakladatele

ASTRONOMICAL SOC PACIFIC

Místo vydání

SAN FRANCISCO

Místo konání akce

Charles Univ, Comp Sci Inst, Prague

Datum konání akce

27. 6. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000401591600006