Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Xiang-Xiang Xue"'
Autor:
Ruizhi Zhang, Tadafumi Matsuno, Haining Li, Wako Aoki, Xiang-Xiang Xue, Takuma Suda, Gang Zhao, Yuqin Chen, Miho N. Ishigaki, Jianrong Shi, Qianfan Xing, Jingkun Zhao
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 174 (2024)
Very metal-poor (VMP) stars record the signatures of early accreted galaxies, making them essential tools for unraveling the early stages of Galaxy formation. Understanding the origin of VMP stars requires comprehensive studies of their chemical comp
Externí odkaz:
https://doaj.org/article/fb02387002c6405c81c9bbae3be98d44
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 10 (2024)
Thanks to the precise astrometric measurements of proper motions by the Gaia mission, a new tidal stellar stream has been discovered in the northern hemisphere. The distribution of star count shows that the stream is approximately 80° long and 1.°7
Externí odkaz:
https://doaj.org/article/e642940643aa46cebde21f1e5f92d7d8
Autor:
Yang Huang, Timothy C. Beers, Haibo Yuan, Ke-Feng Tan, Wei Wang, Jie Zheng, Chun Li, Young Sun Lee, Hai-Ning Li, Jing-Kun Zhao, Xiang-Xiang Xue, Yujuan Liu, Huawei Zhang, Xue-Ang Sun, Ji Li, Hong-Rui Gu, Christian Wolf, Christopher A. Onken, Jifeng Liu, Zhou Fan, Gang Zhao
Publikováno v:
The Astrophysical Journal, Vol 957, Iss 2, p 65 (2023)
We present precise photometric estimates of stellar parameters, including effective temperature, metallicity, luminosity classification, distance, and stellar age, for nearly 26 million stars using the methodology developed in the first paper of this
Externí odkaz:
https://doaj.org/article/5de56f6438f841df8030381460a4480c
Autor:
Andrés Almeida, Scott F. Anderson, Maria Argudo-Fernández, Carles Badenes, Kat Barger, Jorge K. Barrera-Ballesteros, Chad F. Bender, Erika Benitez, Felipe Besser, Jonathan C. Bird, Dmitry Bizyaev, Michael R. Blanton, John Bochanski, Jo Bovy, William Nielsen Brandt, Joel R. Brownstein, Johannes Buchner, Esra Bulbul, Joseph N. Burchett, Mariana Cano Díaz, Joleen K. Carlberg, Andrew R. Casey, Vedant Chandra, Brian Cherinka, Cristina Chiappini, Abigail A. Coker, Johan Comparat, Charlie Conroy, Gabriella Contardo, Arlin Cortes, Kevin Covey, Jeffrey D. Crane, Katia Cunha, Collin Dabbieri, James W. Davidson Jr, Megan C. Davis, Anna Barbara de Andrade Queiroz, Nathan De Lee, José Eduardo Méndez Delgado, Sebastian Demasi, Francesco Di Mille, John Donor, Peter Dow, Tom Dwelly, Mike Eracleous, Jamey Eriksen, Xiaohui Fan, Emily Farr, Sara Frederick, Logan Fries, Peter Frinchaboy, Boris T. Gänsicke, Junqiang Ge, Consuelo González Ávila, Katie Grabowski, Catherine Grier, Guillaume Guiglion, Pramod Gupta, Patrick Hall, Keith Hawkins, Christian R. Hayes, J. J. Hermes, Lorena Hernández-García, David W. Hogg, Jon A. Holtzman, Hector Javier Ibarra-Medel, Alexander Ji, Paula Jofre, Jennifer A. Johnson, Amy M. Jones, Karen Kinemuchi, Matthias Kluge, Anton Koekemoer, Juna A. Kollmeier, Marina Kounkel, Dhanesh Krishnarao, Mirko Krumpe, Ivan Lacerna, Paulo Jakson Assuncao Lago, Chervin Laporte, Chao Liu, Ang Liu, Xin Liu, Alexandre Roman Lopes, Matin Macktoobian, Steven R. Majewski, Viktor Malanushenko, Dan Maoz, Thomas Masseron, Karen L. Masters, Gal Matijevic, Aidan McBride, Ilija Medan, Andrea Merloni, Sean Morrison, Natalie Myers, Szabolcs Mészáros, C. Alenka Negrete, David L. Nidever, Christian Nitschelm, Daniel Oravetz, Audrey Oravetz, Kaike Pan, Yingjie Peng, Marc H. Pinsonneault, Rick Pogge, Dan Qiu, Solange V. Ramirez, Hans-Walter Rix, Daniela Fernández Rosso, Jessie Runnoe, Mara Salvato, Sebastian F. Sanchez, Felipe A. Santana, Andrew Saydjari, Conor Sayres, Kevin C. Schlaufman, Donald P. Schneider, Axel Schwope, Javier Serna, Yue Shen, Jennifer Sobeck, Ying-Yi Song, Diogo Souto, Taylor Spoo, Keivan G. Stassun, Matthias Steinmetz, Ilya Straumit, Guy Stringfellow, José Sánchez-Gallego, Manuchehr Taghizadeh-Popp, Jamie Tayar, Ani Thakar, Patricia B. Tissera, Andrew Tkachenko, Hector Hernandez Toledo, Benny Trakhtenbrot, José G. Fernández-Trincado, Nicholas Troup, Jonathan R. Trump, Sarah Tuttle, Natalie Ulloa, Jose Antonio Vazquez-Mata, Pablo Vera Alfaro, Sandro Villanova, Stefanie Wachter, Anne-Marie Weijmans, Adam Wheeler, John Wilson, Leigh Wojno, Julien Wolf, Xiang-Xiang Xue, Jason E. Ybarra, Eleonora Zari, Gail Zasowski
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 267, Iss 2, p 44 (2023)
The eighteenth data release (DR18) of the Sloan Digital Sky Survey (SDSS) is the first one for SDSS-V, the fifth generation of the survey. SDSS-V comprises three primary scientific programs or “Mappers”: the Milky Way Mapper (MWM), the Black Hole
Externí odkaz:
https://doaj.org/article/c316293bd0cb4069bc0c64377b2d0cef
Autor:
Wenbo Wu, Gang Zhao, Jiang Chang, Xiang-Xiang Xue, Yuqin Chen, Chengdong Li, Xianhao Ye, Chengqun Yang
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 2, p 151 (2023)
In N -body simulations, nearly radial mergers can form shell-like overdensities in the sky position and phase space ( r − v _r ) due to the combination of dynamical friction and tidal stripping. The merger event of Gaia-Sausage-Enceladus (GSE) has
Externí odkaz:
https://doaj.org/article/0617e938753540649c9d2151ac71e651
Publikováno v:
The Astronomical Journal, Vol 165, Iss 6, p 224 (2023)
We present a catalog of distances for 19,544 K giants drawn from Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) DR8. Most of them are located in the halo of the Milky Way up to ∼120 kpc. There are 15% K giants without Sloan Digi
Externí odkaz:
https://doaj.org/article/3e657106f25b48baa5648eeeb7baed93
Autor:
Jing Li, Lin Long, Jing Zhong, Lin Tang, Bo Zhang, Songmei Qin, Yirong Chen, Zhengzhou Yan, Li Chen, Xiang-Xiang Xue, Jinliang Hou, Jian-Rong Shi
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 266, Iss 1, p 4 (2023)
In this work, we update the catalog of M-giant stars from the low-resolution spectra of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Data Release 9. There are 58,076 M giants identified from the classification pipeline with
Externí odkaz:
https://doaj.org/article/52bb9cd6d3324169887e2f1437e5f2a8
Autor:
Sarah A Bird, Xiang-Xiang Xue, Chao Liu, Chris Flynn, Juntai Shen, Jie Wang, Chengqun Yang, Meng Zhai, Ling Zhu, Gang Zhao, Hai-Jun Tian
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 516:731-748
We measure the enclosed Milky Way mass profile to Galactocentric distances of $\sim70$ and $\sim50$ kpc using the smooth, diffuse stellar halo samples of Bird et al. The samples are LAMOST and SDSS/SEGUE K giants (KG) and SDSS/SEGUE blue horizontal b
We present a study of the influence of the Gaia-Sausage-Enceladus (GSE) on the density shape of the Galactic stellar halo using 11624 K giants from the LAMOST survey. Every star is assigned a probability of being a member of the GSE based on its sphe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f67f766ee19db059fe4535906a0436ef
http://arxiv.org/abs/2205.14815
http://arxiv.org/abs/2205.14815
Autor:
Yong Yang, Jing-Kun Zhao, Miho N Ishigaki, Jian-Zhao Zhou, Cheng-Qun Yang, Xiang-Xiang Xue, Xian-Hao Ye, Gang Zhao
By mining the data from $Gaia$ EDR3, SDSS/SEGUE DR16 and LAMOST DR8, 11 member stars of the NGC 5466 tidal stream are detected and 7 of them are newly identified. To reject contaminators, a variety of cuts are applied in sky position, color-magnitude
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0535979fac74f2da0addbc59722b002
http://arxiv.org/abs/2203.13414
http://arxiv.org/abs/2203.13414