A Far-Infrared H-R Diagram of Young Stellar Objects

Details A Far-Infrared H-R Diagram of Young Stellar Objects A Far-Infrared H-R Diagram of Young Stellar Objects

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ap%26ss.235..117d&link_type=abstract

Astrophysics and Space Science, Volume 235, Issue 1, pp.117-128

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

The observed spectral energy distributions from far-infrared (FIR) to millimeter wavelengths of young stellar objects (YSOs) fit a modified blackbody radiation with a peak around 100 μm for both high-and low-mass YSOs. The spectra are nearly represented by the FIR colors made byIRAS flux densities at 60 and 100 μm. UsingIRAS data, we make a FIR H-R diagram of cold YSOs, the parameters of which are the FIR color and the luminosity at 60 μm. In each FIR H-R diagram of YSOs of three nearby star-forming regions, YSOs in early evolutionary phase form a fundamental sequence, along which they move with increasing of the luminosity while keeping the mass of FIR emitting envelope. We can predict the stellar masses of YSOs by using the H-R diagram.

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