Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Dongtao Cao"'
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 2, p 217 (2024)
We present a series of nine Doppler images of the magnetically active K component of the RS CVn-type binary SZ Piscium (SZ Psc), based on high-resolution spectroscopic data collected from 2014 to 2018. We apply least-squares deconvolution (LSD) to al
Externí odkaz:
https://doaj.org/article/87780354b409483a8935854d65c1b56e
Autor:
Dongtao Cao, Shenghong Gu
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 1, p 13 (2024)
Stellar coronal mass ejections (CMEs) have recently attracted much attention for their impacts on stellar evolution and surrounding exoplanets. RS CVn-type stars could produce large flares, and therefore may have frequent CMEs. Here we report the cap
Externí odkaz:
https://doaj.org/article/7a7cc534a2704b5cb449ae8400e68009
Autor:
Jianhua Wang, Shenghong Gu, Xiaobin Wang, Bill Yeung, Eric Ng, Kamfung Yu, Leilei Sun, Yue Xiang, Dongtao Cao, Jinming Bai, Yufeng Fan, Fukun Xu, Yisi Liu, Xiaoyun Xu, Nanping Luo
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 521:6295-6304
We present optimized physical parameters of the active eclipsing binary system USNO-B1.0 1387-0467554 discovered recently in Yunnan–Hong Kong wide-field photometric (YNHK) survey, based on the analysis of its two colour light curves and low resolut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4032da860ce714fec0774ae56ba884c2
https://doi.org/10.1093/mnras/stad1051
https://doi.org/10.1093/mnras/stad1051
Autor:
Xiaoyun Xu, Xiaobing Wang, Karri Muinonen, Antti Penttilä, Nanping Luo, Shenghong Gu, Leilei Sun, Fukun Xu, Yisi Liu, Yue Xiang, Dongtao Cao, Jianhua Wang
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 521:3925-3938
The lightcurves of asteroids are essential for determining their physical characteristics, including shape, spin, size, and surface composition. However, most asteroids are missing some of these basic physical parameters due to lack of photometric da
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c3e9d49c23a2c4fdfd0ed17803e2705
https://doi.org/10.1093/mnras/stad765
https://doi.org/10.1093/mnras/stad765
Autor:
Shenghong Gu, Xiaobin Wang, Bill Yeung, Eric Ng, Kamfung Yu, Jinming Bai, Yufeng Fan, Leilei Sun, Yue Xiang, Dongtao Cao, Baoli Lun, Yuxin Xin, Chuanjun Wang, Fukun Xu, Yisi Liu
Publikováno v:
Astronomische Nachrichten. 343
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27dd02c0a47ef4cbe536409d8107aca4
https://doi.org/10.1002/asna.20224022
https://doi.org/10.1002/asna.20224022
Autor:
Shenghong Gu, Xiaobin Wang, Bill Yeung, Eric Ng, Kamfung Yu, Jinming Bai, Yufeng Fan, Leilei Sun, Yue Xiang, Dongtao Cao, Baoli Lun, Yuxin Xin, Chuanjun Wang, Fukun Xu, Yisi Liu
Publikováno v:
Astronomische Nachrichten. 343
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06282a2f6ba98468de34aab69af344d8
https://doi.org/10.1002/asna.20229013
https://doi.org/10.1002/asna.20229013
Publikováno v:
Cao, D, Gu, S, Grundahl, F & Palle, P L 2022, ' Magnetic activities on two single-lined RS Canum Venaticorum binaries IM Pegasi and σ Geminorum ', Monthly Notices of the Royal Astronomical Society, vol. 514, no. 3, pp. 4190-4204 . https://doi.org/10.1093/mnras/stac1576
We present the study on continuous high-resolution spectroscopic observations of two long-period single-lined RS Canum Venaticorum (RS CVn) binary stars IM Pegasi (IM Peg) and σ Geminorum (σ Gem), obtained with the Hertzsprung SONG telescope during
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d053c0573db310ff7f9767e4f51bc488
https://pure.au.dk/portal/da/publications/magnetic-activities-on-two-singlelined-rs-canum-venaticorum-binaries-im-pegasi-and--geminorum(c5b0d4c9-d4e6-4cd3-8638-a2b6fdd6b8a8).html
https://pure.au.dk/portal/da/publications/magnetic-activities-on-two-singlelined-rs-canum-venaticorum-binaries-im-pegasi-and--geminorum(c5b0d4c9-d4e6-4cd3-8638-a2b6fdd6b8a8).html
We apply the variational autoencoder (VAE) to the LAMOST-K2 low-resolution spectra to detect the magnetic activity of the stars in the K2 field. After the training on the spectra of the selected inactive stars, the VAE model can efficiently generate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24101b62c17c4e116cfb38d9597d9780
Autor:
Yisi Liu, Shenghong Gu, Jing Liu, Xiaobin Wang, Bill Yeung, Eric Ng, Jianhua Wang, Yue Xiang, Dongtao Cao, Leilei Sun, Fukun Xu, Xiang Luo, Lu Bai, Xiaoyun Xu
Publikováno v:
The Astronomical Journal. 163:167
USNO-B1.0 1421-0485411 is an eclipsing binary system newly discovered in the Yunnan-Hong Kong wide-field photometric survey. Its orbital period is 1.295 days. Based on the V- and R-band photometric data collected at Kunming 1.0 m telescope and spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::993bd5adbcefb8cf4ab67aaffba4eebd
https://doi.org/10.3847/1538-3881/ac50ab
https://doi.org/10.3847/1538-3881/ac50ab
Autor:
Yimin Ma, Dongtao Cao
Publikováno v:
Journal of Physics: Conference Series. 1802:032123
The three-stage Clos switching network is a kind of multi-stage switching network which is commonly used to build a high-speed and large-capacity switching network, and the scheduling algorithm of the switching network affects the performance of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47822c0068e4410a863f60fdc8c333aa
https://doi.org/10.1088/1742-6596/1802/3/032123
https://doi.org/10.1088/1742-6596/1802/3/032123