Disc accretion onto the low-mass brown dwarf OTS 44

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Disc accretion onto the low-mass brown dwarf OTS 44

Post by Lazarus on 10th October 2013, 2:05 pm

Joergens et al. "OTS44: Disk and accretion at the planetary border"
http://arxiv.org/abs/1310.1936

Derived properties of OTS 44 are cooler and more luminous than previous estimates, and the disc is extensive. The mass accretion rate onto OTS 44 is consistent with the general relationship observed for stars and brown dwarfs, despite the low mass of the system.
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Re: Disc accretion onto the low-mass brown dwarf OTS 44

Post by Led_Zep on 18th May 2017, 4:21 pm

http://www.mpia.de/news/science/2017-06-ots44-disk

First radio detection of lonely planet disk shows similarities between stars and planet-like objects

First radio observations of the lonely, planet-like object OTS44 reveal a dusty protoplanetary disk that is very similar to disks around young stars. This is unexpected, given that models of star and planet formation predict that formation from a collapsing cloud, forming a central object with surrounding disk, should not be possible for such low-mass objects. Apparently, stars and planet-like objects are more similar than previously thought. The finding, by an international team led by Amelia Bayo and including several astronomers from the Max Planck Institute for Astronomy, has been published in Astrophysical Journal Letters.
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