IRAS 22150+6109 - a young B-type star with a large disc
Abstract
We present the results of a spectroscopic analysis and spectral energy distribution (SED) modelling of the optical counterpart of the infrared source IRAS 22150+6109. The source was suggested to be as a Herbig Be star located in the star forming region L 1188. Absorption lines in the optical spectrum indicate a spectral type B3, while weak Balmer emission lines reflect the presence of a circumstellar gaseous disc. The star shows no excess radiation in the near-infrared spectral region and a strong excess in the far-infrared that we interpret as radiation from a large disc, whose inner edge is located very far from the star (550 au) and does not attenuate its radiation. We conclude that IRAS 22150+6109 is an intermediate-mass star that is currently undergoing a short pre-main-sequence evolutionary stage.
Keywords
Cite
@article{arxiv.1803.06830,
title = {IRAS 22150+6109 - a young B-type star with a large disc},
author = {Olga V. Zakhozhay and Anatoly S. Miroshnichenko and Kenesken S. Kuratov and Vladimir A. Zakhozhay and Serik A. Khokhlov and Sergey V. Zharikov and Nadine Manset},
journal= {arXiv preprint arXiv:1803.06830},
year = {2018}
}
Comments
7 pages, 7 figures, accepted for publication in MNRAS