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Results 1 - 20 of 20

Surface C, N, O, and Na abundances of RR Lyrae variables implying the nature of internal mixing in low-mass stars. (arXiv:2205.15816v1 [astro-ph.SR])
- Virtual Journal - Volume 20, Issue 22 - article #9
- Yoichi Takeda
- http://arxiv.org/abs/2205.15816
Photospheric carbon and oxygen abundances of F-G type stars in the Pleiades cluster. (arXiv:1610.05439v1 [astro-ph.SR])
- Virtual Journal - Volume 14, Issue 43 - article #18
- Yoichi Takeda, Osame Hashimoto, Satoshi Honda
- http://arxiv.org/abs/1610.05439
Sulfur and zinc abundances of red giant stars. (arXiv:1607.04385v1 [astro-ph.SR])
- Virtual Journal - Volume 14, Issue 30 - article #13
- Yoichi Takeda, Masashi Omiya, Hiroki Harakawa, Bun'ei Sato
- http://arxiv.org/abs/1607.04385
A NON-LTE STUDY OF SILICON ABUNDANCES IN GIANT STARS FROM THE SI i INFRARED LINES IN THE zJ-BAND
- Virtual Journal - Volume 14, Issue 21 - article #19
- Kefeng Tan, Jianrong Shi, Masahide Takada-Hidai, Yoichi Takeda, and Gang Zhao
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/823/1/36
The elemental composition of the Sun - I. The intermediate mass elements Na to Ca
- Virtual Journal - Volume 13, Issue 2 - article #29
- Pat Scott, Nicolas Grevesse, Martin Asplund, A. Jacques Sauval, Karin Lind, Yoichi Takeda, Remo Collet, Regner Trampedach and Wolfgang Hayek
- Astronomy and Astrophysics - Volume: 573, Issue: January 2015
- http://dx.doi.org/10.1051/0004-6361/201424109
  Abstract Full HTML PDF (1.130 MB) ePUB (1.966 MB) References Online Material NASA ADS Abstract Service
Spectroscopic Study on the Beryllium Abundances of Red Giant Stars
- Virtual Journal - Volume 12, Issue 20 - article #139
- Yoichi Takeda, Akito Tajitsu
- arXiv.org - Astrophysics - Volume: 2014, Issue: 4 Jul
- arXiv:1406.7066 [pdf, ps, other]
The elemental composition of the Sun I. The intermediate mass elements Na to Ca
- Virtual Journal - Volume 12, Issue 19 - article #13
- Pat Scott, Nicolas Grevesse, Martin Asplund, A. Jacques Sauval, Karin Lind, Yoichi Takeda, Remo Collet, Regner Trampedach, Wolfgang Hayek
- arXiv.org - Astrophysics - Volume: 2014, Issue: 9 May
- arXiv:1405.0279 [pdf, other]
Carbon Abundances of Metal-Poor Star Determined from the C I 1.068-1.069 micron Lines
- Virtual Journal - Volume 11, Issue 7 - article #3
- Yoichi Takeda, Masahide Takada-Hidai
- arXiv.org - Astrophysics - Volume: 2013, Issue: 15 Feb
- arXiv:1302.3313 [pdf, ps, other]
Lithium, Carbon, and Oxygen Abundances of Hyades F-G Type Stars
- Virtual Journal - Volume 11, Issue 1 - article #4
- Yoichi Takeda, Satoshi Honda, Takashi Ohnishi, Michiko Ohkubo, Ryuko Hirata, Kozo Sadakane
- arXiv.org - Astrophysics - Volume: 2013, Issue: 4 Jan
- arXiv:1212.6318 [pdf, ps, other]
Lithium, Carbon, and Oxygen Abundances of Hyades F-G Type Stars
- Virtual Journal - Volume 10, Issue 52 - article #11
- Yoichi Takeda, Satoshi Honda, Takashi Ohnishi, Michiko Ohkubo, Ryuko Hirata, Kozo Sadakane
- arXiv.org - Astrophysics - Volume: 2012, Issue: 27 Dec
- arXiv:1212.6318 [pdf, ps, other]
The chemical composition of the post-asymptotic giant branch F supergiant CRL 2688
- Virtual Journal - Volume 10, Issue 34 - article #30
- Miho N. Ishigaki, Mudumba Parthasarathy, Bacham E. Reddy, Pedro García-Lario, Yoichi Takeda, Wako Aoki, D. Aníbal García-Hernández and Arturo Manchado
- Monthly Notices of the Royal Astronomical Society - Volume: 425, Issue: 2
- Abstract Full Article (HTML)PDF(580K)References Request Permissions
Behavior of [S/Fe] in Very Metal-Poor Stars from the S I 1.046 micron Lines Revisited
- Virtual Journal - Volume 9, Issue 45 - article #3
- Yoichi Takeda, Masahide Takada-Hidai
- arXiv.org - Astrophysics - Volume: 2011, Issue: 11 Nov
- arXiv:1111.2185 [pdf, ps, other]
Lithium, Sodium, and Potassium Abundances in Sharp-Lined A-Type Stars
- Virtual Journal - Volume 9, Issue 45 - article #9
- Yoichi Takeda, Dong-Il Kang, Inwoo Han, Byeong-Cheol Lee, Kang-Min Kim, Satoshi Kawanomoto, Naoko Ohishi
- arXiv.org - Astrophysics - Volume: 2011, Issue: 11 Nov
- arXiv:1111.1603 [pdf, ps, other]
Beryllium Abundances of Solar-Analog Stars
- Virtual Journal - Volume 9, Issue 13 - article #4
- Yoichi Takeda, Akito Tajitsu, Satoshi Honda, Satoshi Kawanomoto, Hiroyasu Ando, Takashi Sakurai
- arXiv.org - Astrophysics - Volume: 2011, Issue: 1 Apr
- arXiv:1103.5275 [pdf, ps, other]
Chromospheres in Metal-Poor Stars Evidenced from the He I 10830A Line
- Virtual Journal - Volume 9, Issue 7 - article #3
- Yoichi Takeda, Masahide Takada-Hidai
- arXiv.org - Astrophysics - Volume: 2011, Issue: 18 Feb
- arXiv:1102.3210 [pdf, ps, other]
Exploring the [S/Fe] Behavior of Metal-Poor Stars with the S I 1.046 micron Lines
- Virtual Journal - Volume 8, Issue 37 - article #5
- Yoichi Takeda, Masahide Takada-Hidai
- arXiv.org - Astrophysics - Volume: 2010, Issue: 10 Sep
- arXiv:1009.0824 [pdf, ps, other]
Can Sodium Abundances of A-Type Stars Be Reliably Determined from Na I 5890/5896 Lines?
- Virtual Journal - Volume 7, Issue 28 - article #2
- Yoichi Takeda, Dong-Il Kang, Inwoo Han, Byeong-Cheol Lee, Kang-Min Kim
- arXiv.org - Astrophysics - Volume: 2009, Issue: 10 Jul
- arXiv:0907.1329 [ps, pdf, other]
Rotation and surface abundance peculiarities in A-type stars
- Virtual Journal - Volume 6, Issue 35 - article #6
- Yoichi Takeda, Inwoo Han, Dong-Il Kang, Byeong-Cheol Lee, Kang-Min Kim
- arXiv.org - Astrophysics - Volume: 2008, Issue: 28 Aug
- arXiv:0808.3806 [ps, pdf, other]
Non-LTE Line-Formation and Abundances of Sulfur and Zinc in F, G, and K Stars
- Virtual Journal - Volume 3, Issue 37 - article #34
- Yoichi Takeda, Osamu Hashimoto, Hikaru Taguchi, Kazuo Yoshioka, Masahide Takada-Hidai, Yuji Saito, Satoshi Honda
- ArXiv – Astrophysics – September 2005
- astro-ph/0509239 [ abs , ps , pdf , other ]
Spectroscopic Studies of Extremely Metal-Poor Stars with the Subaru High Dispersion Spectrograph. I. Observational Data
- Virtual Journal - Volume 2, Issue 16 - article #20
- Satoshi Honda, Wako Aoki, Hiroyasu Ando, Hideyuki Izumiura, Toshitaka Kajino, Eiji Kambe, Satoshi Kawanomoto, Kunio Noguchi, Kiichi Okita, Kozo Sadakane, Bun'ei Sato, Masahide Takada-Hidai, Yoichi Takeda, Etsuji Watanabe, Timothy C. Beers, John E. Norris, and Sean G. Ryan
- The Astrophysical Journal Supplement Series - Volume 152, Number 1
- ABSTRACT , FULL TEXT , PDF (770 kB), PS

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