Hello

My name is Yang Yang (杨阳). I am currently a faculty at Xiangtan University, Hunan, China (joined in 2025.05). Before joining Xiangtan University, I was a postdoctoral researcher at the Purple Mountain Observatory (PMO, 2022-2025), and Shanghai Astronomical Observatory(SHAO, 2017-2022), Chinese Academy of Science.
I completed my Ph.D. in Astrophysics in 2017.03 at Nanjing University in China, supervised by Prof. Zhiyuan Li at Nanjing University. I then did my postdoctoral research with Prof. Jiangtao Li at PMO, and with Prof.Zhiqiang Shen at SHAO.

My research primarily focuses on studying the feedback mechanisms of active galactic nuclei (AGNs) and HI gas in nearby galaxies. As a member of the Continuum Halos of Nearly Galaxies – an EVLA Survey (CHANG-ES) , I have extensively analyzed deep VLA radio data to understand AGN feedback activity at various scales. This involves investigating how AGNs impact their surrounding environment and the role they play in galaxy evolution. I am familiar with both the observation and data reduction processes involved in utilizing the VLA. By employing multi-band observational results, I have explored the influence of nuclear activity on the surrounding medium, allowing for the clearest observable evidence in unraveling the complexities of AGN feedback.
More recently, I have broadened my research interests to include the study of the cold circumgalactic medium (CGM) within galaxies and galaxy clusters. I am leading a new observational research project HIMALAYA, on the extended HI gas disk of massive disk galaxies.

Timeline of my academic activities

08.15.2025: Yang Yang's FAST proposal has been awarded 7.5-hours observation time.
07.30.2025: Rui Huang's Chandra large program on NGC3079 (500ks, plus 24 hours joint VLA time; Yang Yasng is a co-I) has been approved!
07.30.2025: Yang Yang has contributed as a co-I to two VLA proposal submission.
07.15.2025: Yang Yang has submitted a MeerKAT proposal.
07.09-11.2025: Yang Yang participated in "FAST expand array" seminar at Changsha, Hunan.
07.01-09.2025: Yang Yang visited Purple Mountain Observatory.
06.16-20.2025: Yang Yang gave an on-line talk “Preliminary results from HIMALAYA--deep HI observations of MAssive disk gaLAxies to studY cold gAs” at the 2025 SKAO General Science Meeting "A new era in astrophysics: Preparing for early science with the SKAO".
05.23-25.2025: Yang Yang gave a talk “Preliminary results from HIMALAYA--deep HI observations of MAssive disk gaLAxies to studY cold gAs” at 2025 Guoshoujing workshop at Changsha, Hunan
05.15.2025: Yang Yang has submitted two FAST proposal about HI galaxies.
05.13.2025: Yang Yang's GBT proposal has been awarded 37.25 hours observation time in 2025B.
05.01.2025: Yang Yang joined Xiangtan University on 05.01.2025.
03.10.2025: Michael Stein's CHANG-ES Paper XXXIV (Yang Yang is a co-author) has been accepted for publication by A&A.
03.14.2025: Yang Yang has submitted an NSFC “面上” proposal about the HIMALAYA project.
01.30.2025: Yang Yang has submitted a GBT proposal about HI galaxies.

Group

Teaching

Publications

ORCID ID: 0000-0001-7254-219X

My Publications at ADS

  1. Stein, M.; Kleimann, J.; Adebahr, B., et al., (Yang Yang is a co-author), CHANG-ES: XXXIV. Magnetic field structure in edge-on galaxies: Characterising large-scale magnetic fields in galactic halos. A&A. 696, A112. 2025
  2. Xu, Jianghui; Yang, Yang; Li, Jiang-Tao, et al., (Yang Yang is a co-author), CHANG-ES XXXV: Cosmic Ray Transport and Magnetic Field Structure of NGC 3556 at 3 GHz. ApJ accepted. 2024
  3. Li, Jiang-Tao; Yu, Xiaodi; Mao, Huiyang, et al., (Yang Yang is a co-author), Probing the He II re-Ionization ERa via Absorbing C IV Historical Yield (HIERACHY) II: Project Design, Current Status, and Examples of Initial Data Products. ApJ accepted. 2024
  4. Li-Yuan. Lu, Jiang-Tao. Li, Carlos J. Vargas, et al., (Yang Yang is a co-author), eDIG-CHANGES III: the lagging eDIG revealed by multi-slit spectroscopy of NGC 891. A&A accepted. 2024
  5. V. Heesen, T. Wiegert, J. Irwin, et al., (Yang Yang is co-author), CHANG-ES XXXIV: a 20 kpc radio bubble in the halo of the star-forming galaxy NGC 4217. A&A accepted. 2024
  6. Jiang-Tao Li, Li-Yuan Lu, Zhijie Qu, Robert A. Benjamin, Joel N. Bregman, Ralf-Jurgen Dettmar, Jayanne English, Taotao Fang, Judith A. Irwin, Yan Jiang, Hui Li, Guilin Liu, Paul Martini, Richard J. Rand, Yelena Stein, Andrew W. Strong, Carlos J. Vargas, Q. Daniel Wang, Jing Wang, Theresa Wiegert, Jianghui Xu, and Yang Yang, eDIG-CHANGES II: Project Design and Initial Results on NGC 3556. 2024, ApJ, 967 78L
  7. Irwin, Judith; Beck, Rainer; Cook, Tanden; Dettmar, Ralf-Jürgen; English, Jayanne; Heesen, Volker; Henriksen, Richard; Jiang, Yan; Li, Jiang-Tao; Lu, Li-Yuan; Mele, Crystal; Müller, Ancla; Murphy, Eric; Porter, Troy; Rand, Richard; Skeggs, Nathan; Stein, Michael; Stein, Yelena; Stil, Jeroen; Strong, Andrew, and Yang Yang, eDIG-CHANGES II: Project Design and Initial Results on NGC 3556. 2024, Galaxies, 12 22l
  8. Jiang-Tao Li, Wei Sun, Li Ji, Yang Yang, Pressure Balance and Energy Budget of the Nuclear Superbubble of NGC 3079. 2024, ApJ, 966 239L
  9. Yang Yang, Jiang-tao Li, Theresa Wiegert, Zhiyuan Li, Fulai Guo, Judith Irwin, Q. Daniel Wang, Ralf-Juergen Dettmar, Rainer Beck, Jayanne English, Li Ji, CHANG-ES. XXX. 10 kpc Radio Lobes in The Sombrero Galaxy. 2024, ApJ, 966 213Y
  10. Jiang, Yan; Li, Jiang-Tao; Gao, Yu ; Bregman, Joel N. ; Ji, Li ; Jiang, Xue-Jian; Tan, Qing-Hua; Wang, Jian-Fa; Wang, Q. Daniel; Yang Yang, CO-CHANGES - I. IRAM 30-m CO observations of molecular gas in the sombrero galaxy. 2024, MNRAS, 528, 4160J
  11. Peng, Sijia; Li, Zhiyuan; Sjouwerman, Lor ́ant O.;Yang Yang; Jiang, Wu; Shen, Zhi-Qiang, Searching for Radio Outflows from M31* with VLBI Observations. 2023, ApJ, 953, 12P
  12. Li, J.-T., Wang, Q. D., Wiegert, T., Bregman, Joel N., Beck, Rainer, Damas-Segovia, Ancor, Irwin, Judith A., Ji, Li, Stein, Yelena, Sun, Wei, Yang Yang, CHANG-ES XXIX: the sub-kpc nuclear bubble of NGC 4438. 2022, MNRAS, 515, 2483L
  13. Yang, Yang, Judith Irwin, Jiangtao Li, Theresa Wiegert, Q. Daniel Wang, Wei Sun, A. Damas- Segovia, Zhiyuan Li, Zhiqiang Shen, Rene. M. Walterbos, Carlos J. Vargas, CHANG-ES. XXIV. First Detection of A Radio Nuclear Ring and Potential LLAGN in NGC 5792. 2022, ApJ, 927, 11P
  14. Eric S. Perlman, Eileen T. Meyer, Q. Daniel Wang, Qiang Yuan, Richard Henriksen, Judith Irwin, Jiangtao Li, Theresa Wiegert, Haochuan Li, and Yang Yang, Lightcurve Evolution of the nearest Tidal Disruption Event: A late-time, radio-only flare . 2021, ApJ, 925, 143P
  15. Peng, Sijia; Li, Zhiyuan; Sjouwerman, Lorąnt O.; Yang, Yang; Xie, Fuguo; Yuan, Feng, Resolving the Nuclear Radio Emission from M32 with the Very Large Array. 2020, ApJ, 894, 61P
  16. Irwin, Judith A.; Henriksen, Richard N.; Weazgowiec, Marek; Damas-Segovia, Ancor; Wang, Q. Daniel; Krause, Marita; Heald, George; Dettmar, Ralf-Jaijrgen; Li, Jiang-Tao; Wiegert, Theresa; Stein, Yelena; Braun, Timothy T.; Im, Jisung; Schmidt, Philip; Macdonald, Scott; Miskolczi, Arpad; Merritt, Alison; Mora-Partiarroyo, S. C.; Saikia, D. J.; Sotomayor, Carlos; Yang, Yang, CHANG-ES - XI. Circular polarization in the cores of nearby galaxies. 2018, MNRAS, 474. 5057
  17. Yang, Yang; Li, Zhiyuan; Sjouwerman, Lorant O.; Feng Yuan, Zhi-Qiang Shen, Very Large Array Multiband Monitoring Observations of M31*. 2017, ApJ, 845, 140
  18. Yang, Yang; Li, Zhiyuan; Sjouwerman, Lorant O.; Wang, Q. Daniel; Gu, Qiusheng; Kraft, Ralph P.; Yuan, Feng, Detection of a Compact Nuclear Radio Source in the Local Group Elliptical Galaxy M32. 2015, ApJL, 807, L19

Research Projects

  • AGN Feedback in Nearby Galaxy: insights from radio observations

    In preparation.

  • HIMALAYA project

    The HIMALAYA (deep HI observations of MAssive disk gaLAxies to studY cold gAs) project aims to investigate how isolated massive disk galaxies acquire and regulate their cold gas reservoirs. So far, HIMALAYA has obtained 112 hours of deep VLA D-array H I observations of 14 nearby, massive, and relatively isolated spiral galaxies (v_rot ≥ 300 km s^−1, M∗ ≥ 10^11 M⊙, d < 150 Mpc). These data reach a HI column density sensitivity of ≲ 10^19 cm^−2, sufficient to detect extended, low-surface-brightness structures beyond the stellar disks. The sample selection excludes galaxies with recent major mergers or strong interactions, ensuring that the detected diffuse gas features are not dominated by tidal effects. In addition, 37 hours of new GBT filling observations have been allocated in 2025, which will provide the missing short-spacing information and enable us to recover the total H I mass and the diffuse, low-column-density structures down to ∼ 10^17 cm^−2. These complementary single-dish data will be combined with the VLA maps to derive the diffuse HI fraction and better constrain the multiphase baryon budget in the CGM. Together with multi-wavelength data (e.g. ionized gas, X-ray hot gas, and CO gas), HIMALAYA provides a unique dataset to probe the cold gas accretion process and the multiphase CGM in the massive galaxy regime.

  • Molecular gas of galaxies in He II reionization epoch

    In preparation...