MIDINFRARED SPECTROSCOPY OF BETA-PICTORIS - CONSTRAINTS ON THE DUST GRAIN-SIZE

被引：38

作者：

AITKEN, DK ^{[1
]}

MOORE, TJT ^{[1
]}

ROCHE, PE ^{[1
]}

SMITH, CH ^{[1
]}

WRIGHT, CM ^{[1
]}

机构：

[1] UNIV OXFORD,DEPT ASTROPHYS,OXFORD OX1 3RH,OXON,ENGLAND

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1993年 / 265卷 / 04期

关键词：

CIRCUMSTELLAR MATTER; STARS; INDIVIDUAL; BETA PIC; DUST; EXTINCTION; INFRARED;

D O I：

10.1093/mnras/265.1.L41

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present 8-13 mu m spectroscopy of Beta Pictoris which confirms the presence of silicate emission in its infrared excess, as earlier reported on the basis of narrow-band photometry, and indicates a similarity with cometary dust. The spectral form of the infrared excess allows us to place an upper limit of 2-3 mu m on the size of the emitting grains in the circumstellar disc.

引用

页码：L41 / L43

页数：3

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