An infrared study of the L1551 star formation region - What we have learnt from ISO and the promise for FIRST

被引：0

作者：

White, GJ ^{[1
]}

Liseau, R ^{[1
]}

Men'shchikov, A ^{[1
]}

Justtanont, K ^{[1
]}

Nisini, B ^{[1
]}

Benedettini, M ^{[1
]}

Caux, E ^{[1
]}

Correia, JC ^{[1
]}

Kaufman, M ^{[1
]}

Lorenzetti, D ^{[1
]}

Molinari, S ^{[1
]}

Saraceno, P ^{[1
]}

Smith, HA ^{[1
]}

Spinoglio, L ^{[1
]}

Tommasi, E ^{[1
]}

Fridlund, CVM ^{[1
]}

机构：

[1] Univ Kent, Unit Space Sci, Canterbury CT2 7NR, Kent, England

来源：

PROMISE OF THE HERSCHEL SPACE OBSERVATORY, PROCEEDINGS | 2001年 / 460卷

关键词：

interstellar medium : star formation; individual source : L1551; missions : FIRST; macros : (LTEX)-T-A;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

ISO spectroscopic observations are reported towards the well known infrared source, L1551 IRS 5. The continuum spectral energy distribution has been modelled using a 2D radiative transfer model, and fitted for a central source luminosity of 50 L-circle dot, surrounding a dense torus extending to a distance of similar to 30,000 AU, which has a total (gas + dust) mass of 25 M-circle dot. The extinction towards the outflow is estimated to be A(v) = 11 and the mid-plane optical depth to L1551 IRS 5 to be 140. On the basis of this model, the extinction curve, shows that emission at wavelengths shorter than similar to 2 mum is due to scattered light from close to L1551 IRS 5, while at wavelengths greates than 4 mum, is seen through the full extinguishing column towards the central source.

引用

页码：215 / 218

页数：4

共 21 条

[1] An infrared study of the L1551 star formation region
White, GJ
Liseau, R
Men'shchikov, AB
Justtanont, K
Nisini, B
Benedettini, M
Caux, E
Ceccarelli, C
Correia, JC
Giannini, T
Kaufman, M
Lorenzetti, D
Molinari, S
Saraceno, P
Smith, HA
Spinoglio, L
Tommasi, E
ASTRONOMY & ASTROPHYSICS, 2000, 364 (02) : 741 - 762
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