SIMBAD references

2002ApJ...578..536Z - Astrophys. J., 578, 536-542 (2002/October-2)

A methane, isolated, planetary-mass object in Orion.

ZAPATERO OSORIO M.R., BEJAR V.J.S., MARTIN E.L., REBOLO R., BARRADO Y NAVASCUES D., MUNDT R., EISLOEFFEL J. and CABALLERO J.A.

Abstract (from CDS):

We report on the discovery of a free-floating methane dwarf toward the direction of the young star cluster σ Ori. Based on the object's far-red, optical, and near-infrared photometry and spectroscopy, we conclude that it is a possible member of this association. We have named it S Ori J053810.1-023626 (S Ori 70 is the abridged name). If it is a true member of σ Ori, the comparison of the photometric and spectroscopic properties of S Ori 70 with state-of-the-art evolutionary models yields a mass of 3+5–1Jupiter mass for ages between 1 and 8 Myr. The presence of such a low-mass object in our small search area (55.4 arcmin2) would indicate a rising substellar initial mass function in the σ Ori cluster, even for planetary masses.

Abstract Copyright:

Journal keyword(s): Galaxy: Open Clusters and Associations: Individual: Name: σ Orionis - Stars: Individual: Constellation Name: S Orionis 70 - Stars: Low-Mass, Brown Dwarfs - Stars: Pre-Main-Sequence

Nomenclature: [BZR99] S Ori NN (No. 70) added. [BMZ2001] S Ori JHHMMSS.s+DDMMSS N=1 added.

Status at CDS:  

Simbad objects: 8

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2020.06.02-10:36:04

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