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Astrometric observation of the Galactic LPVs with VERA; Mira and OH/IR stars

Published online by Cambridge University Press:  30 December 2019

Akiharu Nakagawa
Affiliation:
Kagoshima University, 1-21-35, Korimoto, Kagoshima-shi, Kagoshima, Japan email: nakagawa@sci.kagoshima-u.ac.jp
Tomoharu Kurayama
Affiliation:
Teikyo University of Science, 2-2-1 Sakuragi, Senjyu, Adachi-ku, Tokyo, Japan
Gabor Orosz
Affiliation:
Kagoshima University, 1-21-35, Korimoto, Kagoshima-shi, Kagoshima, Japan email: nakagawa@sci.kagoshima-u.ac.jp
Tomoaki Oyama
Affiliation:
National Astronomical Observatory of Japan, Mizusawa VLBI Observatory, 2-12 Hoshigaoka-cho, Mizusawa-ku, Oshu, Iwate, Japan
Takumi Nagayama
Affiliation:
National Astronomical Observatory of Japan, Mizusawa VLBI Observatory, 2-12 Hoshigaoka-cho, Mizusawa-ku, Oshu, Iwate, Japan
Toshihiro Omodaka
Affiliation:
Kagoshima University, 1-21-35, Korimoto, Kagoshima-shi, Kagoshima, Japan email: nakagawa@sci.kagoshima-u.ac.jp
Corresponding

Abstract

We present studies of Long Period Variables (LPVs) in our Galaxy based on astrometric VLBI observations of H2O and SiO masers. The Galactic Miras and OH/IR stars are our main targets. For Miras, we present the distribution of the LPVs on the MK – log P plane. Galactic Miras show consistency with PLR in the LMC except for some fainter sources. Parallaxes of the LPVs determined from VLBI and Gaia are compared. There seems to be some offset.

Type
Contributed Papers
Copyright
© International Astronomical Union 2019 

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References

Engels, D., & Bunzel, F. 2015, A&A, 582, A68 Google Scholar
Ita, Y., Tanabé, T., Matsunaga, N., et al. 2004, MNRAS, 353, 705 CrossRefGoogle Scholar
Nakagawa, A., Kurayama, T., Matsui, M., et al. 2016, PASJ, 68, 78 CrossRefGoogle Scholar
Nakagawa, A., Kurayama, T., Orosz, G., et al. 2018, Astrophysical Masers: Unlocking the Mysteries of the Universe, 336, 365 Google Scholar
Vlemmings, W. H. T., van Langevelde, H. J., Diamond, P. J., Habing, H. J., & Schilizzi, R. T. 2003, A&A, 407, 213 Google Scholar

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Astrometric observation of the Galactic LPVs with VERA; Mira and OH/IR stars
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Astrometric observation of the Galactic LPVs with VERA; Mira and OH/IR stars
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