White, Glenn J.; Liseau, Rene; Men'schikov, A.; Justtanont, Kay; Nisini, Brunella; Benedettini, M.; Caux, E.; Correia, J. C.; Kaufman, M.; Lorenzetti, D.; Molinari, S.; Saraceno, P.; Smith, H. A.; Spinoglio, L.; Tommasi, E. and Fridlund, C. V. M.
(2001).
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| URL: | http://cdsads.u-strasbg.fr/abs/2001ESASP.460..215W |
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Abstract
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⊙, surrounding a dense torus extending to a distance of ~ 30,000 AU, which has a total (gas + dust) mass of 25 M⊙. The extinction towards the outflow is estimated to be Av = 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 ~ 2 μm is due to scattered light from close to L1551 IRS 5, while at wavelengths greater than 4 μm, is seen through the full extinguishing column towards the central source.
| Item Type: | Conference Item |
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| Copyright Holders: | 2000 Not known |
| Extra Information: | Proceedings of the Symposium ‘The Promise of the Herschel Space Observatory’
12–15 December 2000, Toledo, Spain ESA SP-460, July 2001, eds. G.L. Pilbratt, J. Cernicharo, A.M.Heras, T. Prusti, & R. Harris |
| Keywords: | star formation; L1551 |
| Academic Unit/Department: | Science > Physical Sciences |
| Interdisciplinary Research Centre: | Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR) |
| Item ID: | 32651 |
| Depositing User: | Glenn White |
| Date Deposited: | 23 Feb 2012 11:53 |
| Last Modified: | 24 Feb 2012 11:03 |
| URI: | http://oro.open.ac.uk/id/eprint/32651 |
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