Predicted colors and flux densities of protostars in the Herschel PACS and SPIRE filters
Abstract
Upcoming surveys with the Herschel Space Observatory will yield far-IR photometry of large samples of young stellar objects, which will require careful interpretation. We investigate the color and luminosity diagnostics based on Herschel broad-band filters to identify and discern the properties of low-mass protostars. We compute a grid of 2016 protostars in various physical congurations, present the expected flux densities and flux density ratios for this grid of protostars, and compare Herschel observations of three protostars to the model results. These provide useful constraints on the range of colors and fluxes of protostar in the Herschel filters. We find that Herschel data alone is likely a useful diagnostic of the envelope properties of young stars.
Additional Information
© ESO 2010. Received 31 March 2010; Accepted 27 April 2010. Published online 16 July 2010. Herschel is an ESA space observatory with science instruments provided by Principal Investigator consortia. It is open for proposals for observing time from the worldwide astronomical community. We thank B. Whitney for making her code available publicly. B. Ali acknowledges support from NASA grant IPAC.ALI-OTKP-1- JPL.000094. J. J. Tobin acknowledges support from NASA grant HST-GO- 11548.04-A.Attached Files
Published - Ali2010p11909Astron_Astrophys.pdf
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Additional details
- Eprint ID
- 21009
- Resolver ID
- CaltechAUTHORS:20101124-081345913
- HST-GO-11548.04-A
- NASA
- IPAC.ALI-OTKP-1-JPL.000094
- NASA
- Created
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2010-11-24Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)