SIMBAD references

2016ApJ...833L..16F - Astrophys. J., 833, L16-L16 (2016/December-3)

A candidate planetary-mass object with a photoevaporating disk in Orion.


Abstract (from CDS):

In this work, we report the discovery of a candidate planetary-mass object with a photoevaporating protoplanetary disk, Proplyd 133-353, which is near the massive star θ1 Ori C at the center of the Orion Nebula Cluster (ONC). The object was known to have extended emission pointing away from θ1 Ori C, indicating ongoing external photoevaporation. Our near-infrared spectroscopic data and the location on the H-R diagram suggest that the central source of Proplyd 133-353 is substellar (∼M9.5) and has a mass probably less than 13 Jupiter mass and an age younger than 0.5 Myr. Proplyd 133-353 shows a similar ratio of X-ray luminosity to stellar luminosity to other young stars in the ONC with a similar stellar luminosity and has a similar proper motion to the mean one of confirmed ONC members. We propose that Proplyd 133-353 formed in a very low-mass dusty cloud or an evaporating gas globule near θ1 Ori C as a second generation of star formation, which can explain both its young age and the presence of its disk.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): brown dwarfs - circumstellar matter - stars: pre-main sequence - stars: pre-main sequence

Simbad objects: 4

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