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arXiv · 1803.06830

IRAS 22150+6109 - a young B-type star with a large disc

Olga V. Zakhozhay·Anatoly S. Miroshnichenko·Kenesken S. Kuratov·Vladimir A. Zakhozhay·Serik A. Khokhlov·Sergey V. Zharikov·Nadine Manset
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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.

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Olga V. Zakhozhay, Anatoly S. Miroshnichenko, Kenesken S. Kuratov, Vladimir A. Zakhozhay, Serik A. Khokhlov, Sergey V. Zharikov, Nadine Manset. 2018-03-19. IRAS 22150+6109 - a young B-type star with a large disc. https://doi.org/10.1093/mnras%2Fsty679

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