理论研究室----中国科学院国家天文台长春人造卫星观测站

理论研究室构建了实测天体物理与理论天体物理并重的研究体系，聚焦前沿科学问题开展系统性研究。现有科研人员 5 人，其中副研究员1 名，助理研究员 2 名，特聘研究助理 2 名。研究领域覆盖行星科学、恒星及星系物理、活动星系核的观测与理论研究、核天体物理、计算天体物理等方向，核心研究方向包括：太阳系及行星系统形成与演化、恒星及星系物理特性、活动星系核多波段观测与理论、引力理论、脉冲星物态与演化规律等。累计以第一单位发表 SCI 论文 50 余篇、EI 及核心论文 20 余篇；先后主持国家及省部级科研项目 20 余项。

一、研究方向

1. 行星科学

小天体是探究太阳系形成与演化的关键信息来源，已成为行星科学研究的核心课题之一。

目前组里主要研究领域包括：

(1) 小行星族群物理性质观测与动力学演化研究；

(2) 多小行星系统形成与演化机制研究

(3) 近地小天体基础物理性质观测研究

(4) 活动小行星物理性质观测研究

(5) 小天体内部结构反演研究

2. 恒星及星系物理

恒星是星系研究核心对象，目前组里研究涵盖：

(1) 恒星自转角动量演化;

(2)恒星初始质量函数;

(3)恒星非传统磁活动；

(4)银河系结构及演化

3. 活动星系核的观测与理论研究

围绕超大质量黑洞活动区域，目前组里研究涵盖：

(1)活动星系核“变脸” 现象；

(2)活动星系核VLBI 高分辨率观测;

(3)耀变体辐射;

(4)中等质量黑洞射电辐射来源研究。

4. 核天体物理

目前组里研究涵盖：

(1)静态中子星物态方程与内部结构；

(2)中子星内部极端物理过程研究；

(3)引力理论模型的应用

(4)转动中子星结构与演化。

5. 计算天体物理

计算天体物理已从理论天体物理的单纯辅助工具，发展成为与理论、观测并列的天文学第三大研究支柱。它不仅在理论上揭示了各种尺度上天体形成与演化历史，还为大型观测项目（如JWST、LSST、SKA、LISA、CSST等）提供了关键的预测和解释框架，已经成为连接基本物理定律与宏观天文现象的核心桥梁。目前理论研究室主要（预计）开展的研究内容包括：

(1)基于相对论平均场理论、MIT口袋模型等方法，开展脉冲星物态方程与演化性质的模拟研究；

(2)基于N体、光滑粒子流体动力学、离散元方法，模拟太阳系小天体形成与演化过程。

6. 其它

未来将侧重加强基础理论与观测技术融合，利用人工智能、大数据提升数据分析效率。

二、科研成果

[1] Jia Jing He, Yan Xu, Yi Bo Wang, Xiu Lin Huang, Xing Xing Hu, and Yu Fu Shen. “Dark energy eﬀects on surface gravitational redshift and Keplerian frequency of neutron stars”. In: Communications in Theoretical Physics 77 (2025), p. 015401.

[2] Xiu Lin Huang and Yan Xu. “Extending General Covariance: A Uniﬁed Frame- work for Electromagnetic Interactions and Geometric Uniﬁcation”. In: Advances in Mathematical Physics (2025). doi: 10 . 1155/admp/9951427 .

[3] Yuan Qi, Hengxiao Guo, Minfeng Gu, et al. “First Detection of Radio Emission from the Intermediate-mass Black Hole in POX 52: Deep Multiband Observations with ATCA and VLA”. In: The Astrophysical Journal 980 (2025), p. 97.

[4] Yu Fu Shen, Yan Xu, Yi Bo Wang, Xiu Lin Huang, Xing Xing Hu, and Qi Yuan. “The Angular Momentum of Stars Reﬂects the Relationship between Star-forming Environment and Galactic Evolution History”. In: The Astrophysical Journal 988 (2025), p. 125.

[5] Software Copyright Registration. TOV 方程求解器软件（含中子星壳层模型）. Ver- sion V1.0, Registration No. 2025SR1701872, Authorized. 2025.

[6] Software Copyright Registration. 中子星物理参数径向计算系统 [简称：核星] . Ver- sion V1.0, Registration No. 2025SR2216694, Authorized. 2025.

[7] Yi Bo Wang and Yan Xu. “(434936) 2006 TW124-2015 HB287: Is it Another Young Asteroid Pair?” In: Astronomische Nachrichten 0 (2025), e70047.

[8] Yan Xu, Yu F. Shen, Qi Yuan, Xiu Lin Huang, and Yi Bo Wang. “A Study on the Triggering of Nucleonic Direct Urca Processes in Neutron Stars of Speciﬁc Masses and Their Hyperon Dependence”. In: Chinese Physics C (2025). doi: 10 . 1088/ 1674-1137/ae2109.

[9] Bin Diao, Yan Xu, Xiu Lin Huang, and Yi Bo Wang. “Study of tidal deformabilities of neutron stars using relativistic mean ﬁeld theory containing d mesons”. In: Acta Physica Sinica 72 (2023), p. 022601.

[10] Y. F. Shen. “S-index periodicity detection based on multiple random spectral ob- servations”. In: Scientiﬁc Reports 21095 (2023).

[11] Yan Xu, Bin Diao, Yi Bo Wang, Xiu Lin Huang, Xing Xing Hu, and Zi Yu. “Probing into the Possible Range of the U Bosonic Coupling Constants in Neu- tron Stars Containing Hyperons”. In: Research in Astronomy and Astrophysics 23 (2023), p. 055016.

[12] Yi Bo Wang, Zhe Kang, and Yan Xu. “Multi-color photometric observations of three asteroids in the vicinity of Vesta family”. In: Astronomische Nachrichten 343 (2022), e20210102.

[13] Yan Xu. “天文观测对中子星内部结构的可能约束”. In: 天文学进展 40 (2022). In Chinese, p. 193.

[14] Yi Bo Wang and Yan Xu. “Study on the asteroidal spin characteristics in the Hun- garia region”. In: Astronomische Nachrichten 342 (2021), p. 914.

[15] Yan Xu, Xiu Lin Huang, Yi Bo Wang, Cheng Zhi Liu, and Jin Lin Han. “Baryon- Baryon interaction eﬀects on neutrino emission from direct URCA processes of baryons and modiﬁed URCA processes of nucleons in neutron star matter”. In: International Journal of Modern Physics D 30 (2021), p. 2150054.

[16] Shi Yi Zhao, Cheng Zhi Liu, Xiu Lin Huang, Yi Bo Wang, and Yan Xu. “Eﬀects of the strong magnetic ﬁeld on the moment of inertia and the surface gravitational redshift in neutron star”. In: Acta Physica Sinica 70 (2021), p. 222601.

[17] Yan Xu, Wen Bo Ding, Cheng Zhi Liu, and Jin Lin Han. “Nucleonic Direct Urca Processes and Cooling of the Massive Neutron Star by Antikaon Condensations”. In: Advances in Astronomy 2020 (2020), p. 6146913.

[18] Hong Yan Wang and Yan Xu. “CFL 色超导能隙对混合星性质的影响”. In: 吉林大学学报 (理学版) 57 (2019). In Chinese, p. 406.

[19] Yi Bo Wang, Cheng Zhi Liu, Cun Bo Fan, and Yan Xu. “Study on the Spin Charac- teristics of the Flora Asteroid Family”. In: Chinese Astronomy and Astrophysics 43 (2019). Also published in Acta Astronomica Sinica 60, 1 (2019), in Chinese, p. 375.

[20] Yan Xu, Qi Jun Zhi, Yi Bo Wang, Xiu Lin Huang, Wen Bo Ding, Zi Yu, and Cheng Zhi Liu. “Nucleonic 1 S0 Superﬂuidity induced by a soft pion in neutron star matter with antikaon condensations”. In: Chinese Physics Letters 36 (2019), p. 061301.

[21] Xiu Lin Huang, Yan Xu, and Cheng Zhi Liu. “Gauge Method for a Special Spinor Field Transformation”. In: Canadian Journal of Physics 96 (2018), p. 1309.

[22] Y.-B. Wang, Y. Xu, C.-B. Fan, and C.-Z. Liu. “Study on the spin states of asteroids using a simplistic shape model”. In: Astronomische Nachrichten 339.6 (2018).

[23] Yan Xu, Xiu Lin Huang, Xiao Jun Zhang, Zi Yu, Cun Bo Fan, Wen Bo Ding, and Cheng Zhi Liu. “The inﬂuence of antikaon condensations on nucleon 1 S0 superﬂuid- ity in neutron star matter”. In: Monthly Notices of the Royal Astronomical Society 474 (2018), p. 3576.

[24] Zi Yu, Yan Xu, Gui Qing Zhang, and Tao Ping Hu. “Eﬀects of a weakly interacting light U boson on Protoneutron stars including the hyperon-hyperon interactions”. In: Communications in Theoretical Physics 69 (2018), p. 417.

[25] Xiao-Jun Zhang, Hai-Hua Wang, Cheng-Zhi Liu, Guo-Wan Zhang, Lei Wang, and Jin-Hui Wu. “Controlling transverse shift of the reﬂected light via high refractive index with zero absorption”. In: Optics Express 25 (2017), p. 10335.

[26] Xiu-Lin Huang, Cheng-Zhi Liu, Yan Xu, and Guang-Zhou Liu. “Eﬀects of tensor couplings of ω and ρ mesons on 1 S0 nucleon superﬂuidity in neutron star matter”. In: International Journal of Modern Physics D 25 (2016), p. 1650059.

[27] Min Li and Lin Xiao. “Lifetimes and Accretion Rates of Protoplanetary Disks”. In: The Astrophysical Journal 820 (2016), p. 36.

[28] Xing-hu Li, Zhi-Fu Gao, Xiang-Dong Li, Pei Wang, Na Wang, Yan Xu, and Qiu-he Peng. “Numerically ﬁtting the electron Fermi energy and the electron fraction in a neutron star”. In: International Journal of Modern Physics D 25 (2016), p. 1650002.

[29] Software Copyright Registration. 长春人卫站卫星激光测距轨道检核程序. Regis- tration No. 2016SR235456, Authorized. 2016.

[30] Ning Sui and Min Li. “The eﬀects of diﬀerent forms of viscosities on the formation of (pre-) transitional discs”. In: Monthly Notices of the Royal Astronomical Society 462 (2016), p. 323.

[31] Lin Xiao, Li-Ping Jin, Cheng-Zhi Liu, and Cun-Bo Fan. “Gas giant planet forma- tion in the photoevaporating I. Gap formation”. In: The Astrophysical Journal 826 (2016), p. 168.

[32] Yan Xu, Xiu-Lin Huang, Cheng-Zhi Liu, Tmurbagan Bao, and Guang-Zhou Liu. “Eﬀects of tensor couplings on nucleonic direct Urca processes in neutron star mat- ter”. In: Chinese Physics Letters 33 (2016), p. 099701.

[33] Zhi-Fu Gao, Na Wang, and Yan Xu. “The eﬀects of superhigh magnetic ﬁelds on the equations of state of neutron stars”. In: Astronomische Nachrichten 336 (2015), p. 866.

[34] Xiu-Lin Huang, Hai-Jun Wang, Guang-Zhou Liu, Cheng-Zhi Liu, and Yan Xu. “Ef- fects of delta mesons on the baryonic direct Urca processes in neutron star matter”. In: Chinese Physics C 39 (2015), p. 105102.

[35] Min Li and Xiang Li. “Masses of discs form from collapse of molecular cloud cores”. In: Monthly Notices of the Royal Astronomical Society 449 (2015), p. 2259.

[36] Yin-Zhe Ma, Min Li, and Ping He. “Constraining cosmology with pairwise velocity estimator”. In: Astronomy & Astrophysics 582 (2015), p. 52.

[37] Software Copyright Registration. “中国科学院国家天文台长春人造卫星观测站”,空间非合作目标优选预报程序 V1.0 . Registration No. 2015SR023510, Authorized. 2015.

[38] Xiao-Xiao Wang, Ai-Jun Li, Jia-Xiang Sun, Yuan-Hang Sun, Yi Chen, Xiao-Jun

Zhang, Lei Wang, Hai-Hua Wang, and Jin-Yue Gao. “Preservation of transverse spatial coherence in the storage of double light pulses”. In: Journal of the Optical Society of America B 32 (2015), p. 1318.

[39] Yan Xu, Cheng-Zhi Liu, Cun-Bo Fan, Xing-Wei Han, Xiao-Jun Zhang, Ming-Feng Zhu, Hong-Yan Wang, and Guang-Zhou Liu. “Singlet pairing gaps of neutrons and protons in hyperonic neutron Stars”. In: Research in Astronomy and Astrophysics

15 (2015), p. 725.

[40] Xiao-Jun Zhang, Hai-Hua Wang, Zhi-Peng Liang, Yan Xu, Cun-Bo Fan, Cheng-Zhi

Liu, and Jin-Yue Gao. “Goos-Hänchen shift in a standing-wave-coupled electromagnetically- induced-transparency medium”. In: Physical Review A 91 (2015), p. 033831.

[41] Xiao-Jun Zhang, Hai-Hua Wang, Chun-Liang Wang, Yan Xu, Zhi-Peng Liang, Cun- Bao Fan, Cheng-Zhi Liu, and Jin-Yue Gao. “Goos–Hänchen shift of the reﬂected beam in a standing-wave coupled electromagnetically induced transparency system”.

In: Journal of the Optical Society of America B 32 (2015), p. 2281.

[42] Ning Sui, Min Li, and Ping He. “Statistical computation of Boltzmann entropy and estimation of the optimal probability density function from statistical sample”. In:

Monthly Notices of the Royal Astronomical Society 445 (2014), p. 4211.

[43] Yan Xu, Guang-Zhou Liu, Cheng-Zhi Liu, Cun-Bo Fan, Xing-Wei Han, Xiao-Jun Zhang, Hong-Yan Wang, Ming-Feng Zhu, and Yu Meng. “Direct Urca processes involving hyperons in neutron star matter”. In: Chinese Science Bulletin 59 (2014), p. 273.

[44] Li-Li Han, Xiao-Jun Zhang, Cheng-Zhi Liu, Cun-Bo Fan, Xing-Wei Han, Jin-Hui Wu, and Jin-Yue Gao. “Controlled Photonic Stop Bands in a Four-Level Atomic

System of an Inhomogeneously Broadened Solid”. In: Chinese Physics Letters 30 (2013), p. 034203.

[45] Hong-Yan Wang, Guang-Zhou Liu, Yao-Rui Wu, Yan Xu, Ming-Feng Zhu, and Tmurbagan Bao. “The third family of compact stars with the color-ﬂavor locked quark core”. In: Chinese Science Bulletin 58 (2013), p. 3731.

[46] Hong-Yan Wang, Guang-Zhou Liu, Yao-Rui Wu, Yan Xu, Ming-Feng Zhu, Tmurba- gan Bao, and En-Guang Zhao. “Bulk Properties of Hybrid Stars with the Color- Flavor Locked Quark Matter Core”. In: Chinese Physics Letters 30 (2013), p. 061201.

[47] Yan Xu, Guang-Zhou Liu, Cheng-Zhi Liu, Cun-Bo Fan, Xing-Wei Han, Xiao-Jun Zhang, Hong-Yan Wang, and Ming-Feng Zhu. “1S0 nucleon superﬂuidity in neutron star matter”. In: Chinese Physics Letters 30 (2013), p. 062101.

[48] Yan Xu, Guang-Zhou Liu, Cheng-Zhi Liu, Cun-Bo Fan, Hong-Yan Wang, Ming- Feng Zhu, and En-Guang Zhao. “The Nucleon Direct Urca Processes in a Cooling Neutron Star”. In: Chinese Physics Letters 30 (2013), p. 129501.

[49] Xiao-Jun Zhang, Hai-Hua Wang, Zeng-Bin Wang, Xue Dong, Lei Wang, Li-Li Han, Yan Xu, Cheng-Zhi Liu, Cun-Bo Fan, and Jin-Yue Gao. “Tunable reﬂection based on electromagnetically induced transparency”. In: Journal of the Optical Society of America B 30 (2013), p. 1095.

[50] Zhi-peng Liang, Cheng-zhi Liu, Cun-bo Fan, and Ming-guo Sun. “TLE-Aided Orbit Determination Using Single-station SLR Data”. In: Chinese Astronomy and Astro- physics 36 (2012), p. 417.

[51] Yan Xu, Guang-Zhou Liu, Hong-Yan Wang, Wen-Bo Ding, and En-Guang Zhao. “Inﬂuence of σ * and Mesons on Λ Hyperon 1 S0 Superﬂuidity in Neutron Star Mat- ter”. In: Chinese Physics Letters 29 (2012), p. 059701.

[52] Yan Xu, Guang-Zhou Liu, Yao-Rui Wu, Ming-Feng Zhu, Zi Yu, Hong-Yan Wang, and En-Guang Zhao. “The eﬀect of delta meson on the neutron star cooling”. In: Plasma Science and Technology 14 (2012), p. 375.

[53] Xiao-Jun Zhang, Hai-Hua Wang, Cheng-Zhi Liu, Xing-Wei Han, Cun-Bo Fan, Jin- Hui Wu, and Jin-Yue Gao. “Direct conversion of slow light into a stationary light pulse”. In: Physical Review A 86 (2012), p. 023821.

[54] 梁智鹏, 刘承志, 范存波, and 孙明国. “两行根数辅助的 SLR 单站定轨”. In: 天文学报 53 (2012). In Chinese, p. 137.

[55] Yan Xu, Guang-Zhou Liu, Yao-Rui Wu, Hong-Yan Wang, and Feng Zhang. “Inﬂu- ence of L hyperons 1S0 superﬂuidity on the direct Urca processes with hyperons”. In: Communications in Theoretical Physics 56 (2011), p. 521.

[56] Yan Xu, Guang-Zhou Liu, Yao-Rui Wu, Ming-Feng Zhu, Zi Yu, Hong-Yan Wang, and En-Guang Zhao. “Direct Urca processes with hyperon in cooling neutron star”. In: Chinese Physics Letters 28 (2011), p. 079701.

[57] Cheng-Zhi Liu, Xing-Wei Han, Qing-Li Song, Cun-Bo Fan, and Zi-Ang Zhang. “Progress in KHz SLR and Daylight tracking at Changchun Station”. In: Proceed- ings of 12. th International Workshop on Laser Ranging (2008).

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[59] Cheng-Zhi Liu. “Atmospheric Refraction and Center-of-Mass Correction”. In: The 3rd ROK-PRC Optics Technology Workshop (2006).

[60] Cheng-Zhi Liu, You Zhao, Cun-Bo Fan, Xing-Wei Han, Xing-Hua Zhang, Jian- Yong Shi, and Hai-Tao Zhang. “The Performance Of Changchun SLR Station”. In: Proceeding of 14th International Workshop on Laser Ranging. Spain, July 2004.

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