Young stars in the Camelopardalis dust and molecular clouds. V. More YSOs confirmed spectroscopically - Astrophysics > Solar and Stellar AstrophysicsReportar como inadecuado




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Abstract: Far red spectra for 22 stars in the Camelopardalis and the northern Perseusdark clouds, suspected to be pre-main-sequence objects YSOs, are obtained.This evolutionary status is confirmed for ten stars located in the dust andmolecular cloud close to the high-mass protostar GL 490, four stars near the HII region Sh2-205 and one star in the dark cloud TGU 1041. All of these objectsexhibit emission in the H alpha line and some of them emission in the O I andCa II lines. The spectral energy distributions, equivalent widths of theemission lines and approximate spectral classes are determined. Evolutionarystages of the stars are estimated from 2MASS, IRAS and MSX infrared photometry.Now we have spectral confirmation of the YSO status for 14 stars in the GL 490area and 8 stars at Sh2-205. Their spectral types are from A to K, but most ofthem are either Herbig Ae stars or intermediate objects between T Tauri typeand Herbig stars. Both these star forming regions are located near the outeredge of the Local arm at a distance of 900 pc.



Autor: C. J. Corbally, V. Straizys

Fuente: https://arxiv.org/







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