Welcome!

This website gives access to Spectral Energy Distribution models of Young Stellar Objects. To date we have computed 20,071 YSO radiation transfer models, with SEDs computed at ten viewing angles. These models span a large range of evolutionary stages and stellar masses. Please do not hesitate to give feedback or ask questions - visit our feedback form.

Want to be kept informed of updates? Send an empty email to protostars+subscribe@googlegroups.com to join the mailing list.

This website was last updated on 3rd June 2011. You can view the version history to see a full list of changes.

I - A Grid of 200,000 YSO Model SEDs (refereed publication)

• Information - Read this first!
• Model SED browser - Search models by parameters, view and download SEDs.
• ASCII Files - Parameters, broadband fluxes, and magnitudes
• Let us know if you wish to download all SEDs for given viewing angles and apertures.

II - Fitting observed SEDs using a large grid of pre-computed models (refereed publication)

• Information - Read this first!
• SED Fitting Tool - Find the model SEDs which best fit your data. This version can fit models to data in broadband filters and to specific wavelengths simultaneously.
• Information about the fitting tool results - Extinction law & making your own plots.

General

• Radiation Transfer codes - The radiation transfer codes used to compute the models
• Contact - Contact details and feedback form

Archive

• Original SED Fitting Tool - Find the model SEDs which best fit your data. This version can fit models to data in broadband filters and to IRS data between 5.5 and 18 microns.
• Original SED Fitting Tool (monochromatic) - Find the model SEDs which best fit your data at arbitrary wavelengths. You can enter fluxes at any wavelengths, not just in common filters.

Referencing the content of this website

• If you use any of the models (e.g. grid browser or ASCII files), please reference Paper I:
  
  Robitaille, T. P., Whitney, B. A., Indebetouw, R., Wood, K., and Denzmore, P. 2006, ApJS, 167, 256
  Download BiBTex entry from ADS
  
  
• If you use the SED fitting tool, please reference Paper II:
  
  Robitaille, T. P., Whitney, B. A., Indebetouw, R., and Wood, K. 2007, ApJS, 169, 328
  Download BiBTex entry from ADS
  
  
• If you use the Radiation Transfer codes, please reference one or both of the following two papers:
  
  Whitney, B. A., Wood, K., Bjorkman, J. E., and Wolff, M. J. 2003, ApJ, 591, 1049
  Download BiBTex entry from ADS
  
  Whitney, B. A., Wood, K., Bjorkman, J. E., and Cohen, M. 2003, ApJ, 598, 1079
  Download BiBTex entry from ADS