Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Changxing Zhou"'
Publikováno v:
The Astrophysical Journal, Vol 955, Iss 1, p 61 (2023)
Using the Multi Unit Spectroscopic Explorer (MUSE) instrument on the Very Large Telescope, we identified three bubble nebulae (denoted as A, B, and C) around an ultraluminous X-ray source (ULX) in NGC 55. Bubble A shows a regular elliptical shape sur
Externí odkaz:
https://doaj.org/article/c9367ab07f1f4acb85b79ac268641fba
Publikováno v:
The Astrophysical Journal, Vol 947, Iss 2, p 52 (2023)
With Very Large Telescope Multi Unit Spectroscopic Explorer (MUSE) observations, we detected highly variable helium emission lines from the optical counterpart of the supersoft ultraluminous X-ray source (ULX) NGC 247 ULX-1. No Balmer lines can be se
Externí odkaz:
https://doaj.org/article/b3a5c9b18b56490f98e9b674145b5c30
Autor:
Jing Guo, Jianfeng Wu, Hua Feng, Zheng Cai, Ping Zhou, Changxing Zhou, Shiwu Zhang, Junfeng Wang, Mouyuan Sun, Wei-Min Gu, Shan-Shan Weng, Jifeng Liu
Publikováno v:
The Astrophysical Journal, Vol 946, Iss 2, p 72 (2023)
We present a deep optical imaging campaign on the starburst galaxy NGC 4631 with CFHT/MegaCam. By supplementing the HST/ACS and Chandra/ACIS archival data, we search for the optical counterpart candidates of the five brightest X-ray sources in this g
Externí odkaz:
https://doaj.org/article/b95b3926482f4831946af51598e93327
Publikováno v:
Advances in Mechanical Engineering, Vol 10 (2018)
Positioning error of the feed drive system has great influence of the machining quality. In order to guarantee the positioning accuracy, the linear grating scale is adopted to form a full-closed loop. However, due to the inner heat sources and enviro
Externí odkaz:
https://doaj.org/article/5ee9db469d5c4a72b671a09ddd644a6a
Autor:
Jing Guo, Jianfeng Wu, Hua Feng, Zheng Cai, Ping Zhou, Changxing Zhou, Shiwu Zhang, Junfeng Wang, Mouyuan Sun, Wei-Min Gu, Shan-Shan Weng, Jifeng Liu
We present a deep optical imaging campaign on the starburst galaxy NGC 4631 with CFHT/MegaCam. By supplementing the HST/ACS and Chandra/ACIS archival data, we search for the optical counterpart candidates of the five brightest X-ray sources in this g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41355f8e0dac26384350b03837e896a4
http://arxiv.org/abs/2301.00022
http://arxiv.org/abs/2301.00022
Publikováno v:
The Astrophysical Journal. 935:38
The bubble nebula surrounding NGC 1313 X-2 is believed to be powered by high velocity winds from the central ultraluminous X-ray source (ULX) as a result of supercritical accretion. With the Multi-Unit Spectroscopic Explorer (MUSE) observation of the
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 230:2307-2311
For semi-closed-loop computer numerical control machine tool, the pitch error of screw caused by thermal expansion can deteriorate the positioning accuracy of ball screw feed drive system. This study presents different prediction models for positioni
Publikováno v:
Advances in Mechanical Engineering, Vol 10 (2018)
Positioning error of the feed drive system has great influence of the machining quality. In order to guarantee the positioning accuracy, the linear grating scale is adopted to form a full-closed loop. However, due to the inner heat sources and enviro
Publikováno v:
SPIE Proceedings.
The present paper describes a new polymer dispersed liquid crystal (PDLC) material with rapid response time of 1 to 2 ms at operating voltage of 40 volts. The improved response time at lower operating voltage was achieved by selection of suitable mon
Conference
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