LAMOST medium-resolution spectroscopic survey of binarity and exotic star (LAMOST-MRS-B): Observation strategy and target selection

Autor: Jiao Li, Jiang-Dan Li, Yan-Jun Guo, Zhan-Wen Han, Xue-Fei Chen, Chao Liu, Hong-Wei Ge, Deng-Kai Jiang, Li-Fang Li, Bo Zhang, Jia-Ming Liu, Hao Tian, Hao-Tong Zhang, Hai-Long Yuan, Wen-Yuan Cui, Juan-Juan Ren, Jing-Hao Cai, Jian-Rong Shi

LAMOST-MRS-B is one of the sub-surveys of LAMOST medium-resolution (R ∼ 7500) spectroscopic survey. It aims at studying the statistical properties (e.g., binary fraction, orbital period distribution, mass ratio distribution) of binary stars and exo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8602dc78474d453e84e2e86ececc5378
http://arxiv.org/abs/2212.13400

Erratum to: Compact object candidates with K/M-dwarf companions from LAMOST low-resolution survey

Autor: Hui-Jun Mu, Wei-Min Gu, Tuan Yi, Ling-Lin Zheng, Hao Sou, Zhong-Rui Bai, Hao-Tong Zhang, Ya-Juan Lei, Cheng-Ming Li

Publikováno v: Science China Physics, Mechanics & Astronomy. 65

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::36da1d436c09a413e1d85e36b7a9602b
https://doi.org/10.1007/s11433-022-1944-0

A long-period pre-ELM system discovered from LAMOST medium-resolution survey

Autor: Zhi-Xiang Zhang, Ling-Lin Zheng, Wei-Min Gu, Mouyuan Sun, Tuan Yi, Jian-Rong Shi, Song Wang, Zhong-Rui Bai, Hao-Tong Zhang, Wen-Yuan Cui, Junfeng Wang, Jianfeng Wu, Xiang-Dong Li, Yong Shao, Kai-Xing Lu, Yu Bai, Chunqian Li, Jin-Bo Fu, Jifeng Liu

We present LAMOST~J041920.07+072545.4 (hereafter J0419), a close binary consisting of a bloated extremely low mass pre-white dwarf (pre-ELM WD) and a compact object with an orbital period of 0.607189~days. The large-amplitude ellipsoidal variations a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4407e8fbc74cf16b6d8c1700fe10e4e3

LAMOST Time-Domain Survey: First Results of four $K$2 plates

Autor: Song Wang, Hao-Tong Zhang, Zhong-Rui Bai, Hai-Long Yuan, Mao-Sheng Xiang, Bo Zhang, Wen Hou, Fang Zuo, Bing Du, Tan-Da Li, Fan Yang, Kai-Ming Cui, Yi-Lun Wang, Jiao Li, Mikhail Kovalev, Chun-Qian Li, Hao Tian, Wei-Kai Zong, Heng-Geng Han, Chao Liu, A-Li Luo, Jian-Rong Shi, Jian-Ning Fu, Shao-Lan Bi, Zhan-Wen Han, Ji-Feng Liu

Publikováno v: Wang, S, Zhang, H T, Bai, Z R, Yuan, H L, Xiang, M S, Zhang, B, Hou, W, Zuo, F, Du, B, Li, T D, Yang, F, Cui, K M, Wang, Y L, Li, J, Kovalev, M, Li, C Q, Tian, H, Zong, W K, Han, H G, Liu, C, Luo, A L, Shi, J R, Fu, J N, Bi, S L, Han, Z W & Liu, J F 2021, ' LAMOST Time-Domain survey : first results of four K2 plates ', Research in Astronomy and Astrophysics, vol. 21, no. 11, 292 . https://doi.org/10.1088/1674-4527/21/11/292

From Oct. 2019 to Apr. 2020, LAMOST performs a time-domain spectroscopic survey of four $K$2 plates with both low- and med-resolution observations. The low-resolution spectroscopic survey gains 282 exposures ($\approx$46.6 hours) over 25 nights, yiel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f27eefb7f35dc19a030d7b01c56d0e23

THE SEGUE STELLAR PARAMETER PIPELINE. I. DESCRIPTION AND COMPARISON OF INDIVIDUAL METHODS

Autor: Young Sun Lee, Timothy C. Beers, Thirupathi Sivarani, Carlos Allende Prieto, Lars Koesterke, Ronald Wilhelm, Paola Re Fiorentin, Coryn A. L. Bailer-Jones, John E. Norris, Constance M. Rockosi, Brian Yanny, Heidi J. Newberg, Kevin R. Covey, Hao-Tong Zhang, A.-Li Luo

Publikováno v: The Astronomical Journal. 136:2022-2049

We describe the development and implementation of the SEGUE (Sloan Extension for Galactic Exploration and Understanding) Stellar Parameter Pipeline (SSPP). The SSPP derives, using multiple techniques, radial velocities and the fundamental stellar atm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1da16e21ec2511fa3e2aaaaab1fec03b
https://doi.org/10.1088/0004-6256/136/5/2022