• DOI:10.3847/1538-4357/aa70ec
Corpus ID: 119091603

Optical and Near-infrared Spectra of σ Orionis Isolated Planetary-mass Objects

@article{Osorio2017OpticalAN,
  title={Optical and Near-infrared Spectra of σ Orionis Isolated Planetary-mass Objects},
  author={M. Osorio and V. S. B{\'e}jar and K. Ram'irez},
  journal={The Astrophysical Journal},
  year={2017},
  volume={842},
  pages={65}
}

M. Osorio, V. S. Béjar, K. Ram'irez

Published 2017

Physics

The Astrophysical Journal

We have obtained low-resolution optical (0.7-0.98 micron) and near-infrared (1.11-1.34 micron and 0.8-2.5 micron) spectra of twelve isolated planetary-mass candidates (J = 18.2-19.9 mag) of the 3-Myr sigma Orionis star cluster with a view to determining the spectroscopic properties of very young, substellar dwarfs and assembling a complete cluster mass function. We have classified our targets by visual comparison with high- and low-gravity standards and by measuring newly defined spectroscopic… CONTINUE READING

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