Mid-IR light curves of IRAS20126+4104 confirm a 6.8 yr periodic variation interpreted as evidence that the 12 solar-mass protostar is bloated to a radius of roughly 200 solar radii due to rotation with an obscuring spot.
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Evidence for a bloated massive protostar in IRAS20126+4104
Mid-IR light curves of IRAS20126+4104 confirm a 6.8 yr periodic variation interpreted as evidence that the 12 solar-mass protostar is bloated to a radius of roughly 200 solar radii due to rotation with an obscuring spot.