WINERED High-resolution Near-infrared Line Catalog: A-type Star

Sameshima, Hiroaki; Ikeda, Yuji; Matsunaga, Noriyuki; Fukue, Kei; Kobayashi, Naoto; Kondo, Sohei; Hamano, Satoshi; Kawakita, Hideyo; Yasui, Chikako; Izumi, Natsuko; Mizumoto, Misaki; Otsubo, Shogo; Takenaka, Keiichi; Watase, Ayaka; Asano, Akira; Yoshikawa, Tomohiro

Abstract

We present a catalog of absorption lines in the z', Y, and J bands that we identified in 21 Lyn, a slowly rotating A0.5 V star. We detected 155 absorption features in the high-resolution (0.90–1.35 μm, R = 28,000) spectrum obtained with the WINERED spectrograph after the telluric absorption was carefully removed using a spectrum of a B-type star as a telluric standard. With a visual comparison with synthetic spectra, we compiled a catalog of 219 atomic lines for the 155 features, some of which are composed of multiple fine structure lines. The high-quality WINERED spectrum enabled us to detect a large number of weak lines down to ~1% in depth, which are identified for an A-type star for the first time. The catalog includes the lines of H, C, N, O, Mg, Al, Si, S, Ca, Fe, and Sr. These new lines are expected to be useful for spectral classification and chemical abundance analyses, while the line catalog is useful for observers who plan to use A-type stars as telluric standards because it is necessary to distinguish between stellar lines and telluric absorption lines in high-resolution spectra. ASCII versions of the spectra are available in the online version of the journal.

Citation

Sameshima, H., Ikeda, Y., Matsunaga, N., Fukue, K., Kobayashi, N., Kondo, S., …Yoshikawa, T. (2018). WINERED High-resolution Near-infrared Line Catalog: A-type Star. Astrophysical Journal Supplement, 239(2), Article 19. https://doi.org/10.3847/1538-4365/aae924

• Journal Article Type: Article
• Acceptance Date: Oct 15, 2018
• Online Publication Date: Nov 26, 2018
• Publication Date: Nov 26, 2018
• Deposit Date: Dec 13, 2018
• Publicly Available Date: Dec 13, 2018
• Journal: Astrophysical Journal Supplement
• Print ISSN: 0067-0049
• Electronic ISSN: 1538-4365
• Publisher: American Astronomical Society
• Peer Reviewed: Peer Reviewed
• Volume: 239
• Issue: 2
• Article Number: 19
• DOI: https://doi.org/10.3847/1538-4365/aae924
• Public URL: https://durham-repository.worktribe.com/output/1341200