Modelling the dust around Sakurai's Object

被引：0
|
作者：
V.H. Tyne
A. Evans
B. Smalley
T.R. Geballe
S.P.S. Eyres
机构：
[1] Keele University,Physics Department
[2] Gemini Observatory,Centre for Astrophysics
[3] University of Central Lancashire,undefined
来源：
Astrophysics and Space Science | 2002年 / 279卷
关键词：
infrared emission; IR spectra; dust development; stars: individual (Sakurai's Object);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We follow the evolution of the infrared excess and the dustshell of Sakurai's Object by modelling the dust emission. The optical depth,dust temperature, and shell thickness parameters from the models are presented.Fits of DUSTY models to infrared spectra between 1997 May and 1999September illustrate the development of the dust from small grains to a rangeof grain sizes with an almost constant 60% graphite – 40% amorphous carbonmixture. The size of the infrared emitting region continues to growand may now be big enough to resolve. This may help to answerquestions such as the morphology of the dust shell, and whether the dustshell is `blobby' or smooth.
引用
收藏
页码：139 / 147
页数：8
相关论文
共 50 条
  • [21] Sakurai's object: the ionized nebula at radio wavelengths
    Eyres, SPS
    Richards, AMS
    Evans, A
    Bode, MF
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1998, 297 (03) : 905 - 909
  • [22] THE SPATIALLY RESOLVED BIPOLAR NEBULA OF SAKURAI'S OBJECT
    Hinkle, Kenneth H.
    Joyce, Richard R.
    ASTROPHYSICAL JOURNAL, 2014, 785 (02):
  • [23] The continuing saga of Sakurai's object (V4334 Sgr): dust production and helium line emission
    Tyne, VH
    Eyres, SPS
    Geballe, TR
    Evans, A
    Smalley, B
    Duerbeck, HW
    Asplund, M
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2000, 315 (03) : 595 - 599
  • [24] Sakurai's Object: the web page Open Discussion
    A. Evans
    B. Smalley
    S. Kimeswenger
    Astrophysics and Space Science, 2002, 279 : 187 - 188
  • [25] Sakurai's Object: The Web page - Open discussion
    Evans, A
    Smalley, B
    Kimeswenger, S
    ASTROPHYSICS AND SPACE SCIENCE, 2002, 279 (1-2) : 187 - 188
  • [26] Sakurai's object: Spectroscopic monitoring and nebula observations
    Pollacco, DL
    Walton, NA
    Schwarz, HG
    Bell, SA
    PLANETARY NEBULAE, 1997, (180): : 392 - 392
  • [27] Sakurai's object - stellar evolution in real time
    Asplund, M
    ASYMPTOTIC GIANT BRANCH STARS, 1999, (191): : 481 - 486
  • [28] ISO observations of dust formation in Sakurai's object -: Monitoring the mass loss of a very late Helium flash star
    Kerber, F
    Blommaert, JADL
    Groenewegen, MAT
    Kimeswenger, S
    Käufl, HU
    Asplund, M
    ASTRONOMY & ASTROPHYSICS, 1999, 350 (02): : L27 - L30
  • [29] Non-thermal radio emission in Sakurai's Object
    Hajduk, M.
    van Hoof, P. A. M.
    Zijlstra, A. A.
    van de Steene, G.
    Kimeswenger, S.
    Barria, D.
    Tafoya, D.
    Toala, J. A.
    ASTRONOMY & ASTROPHYSICS, 2024, 688
  • [30] The real-time stellar evolution of Sakurai's object
    Hajduk, M
    Zijlstra, AA
    Herwig, F
    van Hoof, PAM
    Kerber, F
    Kimeswenger, S
    Pollacco, DL
    Evans, A
    Lopéz, JA
    Bryce, M
    Eyres, SPS
    Matsuura, M
    SCIENCE, 2005, 308 (5719) : 231 - 233
12345