Bio

I studied in Peking University during 2013 - 2017 and got my bachelor's degree in astronomy in 2017. I was then enrolled in the graduate program in astronomy in The Ohio State University and got my PhD degree in 2023. I am now a postdoc fellow in the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) in Stanford University.

Stanford Advisors

Contact

  • Academic
    zhefuyu@stanford.edu
    University - Scholar Department: Physics Position: Postdoctoral Scholar

Additional Info

Links

Current Research and Scholarly Interests

My research aims to understand how supermassive black holes (SMBHs) grow over cosmic time, one of the key questions in astrophysics.

I have done substantial work in accurately measuring the mass of SMBHs through reverberation mapping (RM). In particular, I derived a new relationship between the radius of the Mg II broad line region and the continuum luminosity of the active galactic nuclei (AGN) based on the OzDES RM project, which is critical for SMBH mass measurements and demographic studies in cosmic noon – the peak of AGN activity. I have also done extensive work in understanding the accretion physics in both AGN and quiescent SMBHs.

Now my work focuses on better understanding the accretion onto SMBHs, the major path of SMBH growth. I collaborate closely with the XOC group and the Rubin LSST team in KIPAC. My research probes the inner most region of the AGN accretion disk through joint analysis of the X-ray spectral and timing data. I will also probe the accretion disk through time domain analysis of the LSST data in the near future.

All Publications

  • OzDES Reverberation Mapping Programme: Mg II lags and R-L relation MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Yu, Z., Martini, P., Penton, A., Davis, T. M., Kochanek, C. S., Lewis, G. F., Lidman, C., Malik, U., Sharp, R., Tucker, B. E., Aguena, M., Annis, J., Bertin, E., Bocquet, S., Brooks, D., Carnero Rosell, A., Carollo, D., Carrasco Kind, M., Carretero, J., Costanzi, M., da Costa, L. N., Pereira, M. S., De Vicente, J., Diehl, H. T., Doel, P., Everett, S., Ferrero, Garcia-Bellido, J., Gatti, M., Gerdes, D. W., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., James, D. J., Kuehn, K., Mena-Fernandez, J., Menanteau, F., Miquel, R., Nichol, B., Paz-Chinchon, F., Pieres, A., Plazas Malagon, A. A., Raveri, M., Romer, A. K., Sanchez, E., Scarpine, Sevilla-Noarbe, Smith, M., Suchyta, E., Swanson, M. C., Tarle, G., Vincenzi, M., Walker, A. R., Weaverdyck, N. 2023; 522 (3): 4132-4147

    View details for DOI 10.1093/mnras/stad1224

    View details for Web of Science ID 000992509900029

  • OzDES Reverberation Mapping Program: H beta lags from the 6-yr survey MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Malik, U., Sharp, R., Penton, A., Yu, Z., Martini, P., Lidman, C., Tucker, B. E., Davis, T. M., Lewis, G. F., Aguena, M., Allam, S., Alves, O., Andrade-Oliveira, F., Asorey, J., Bacon, D., Bertin, E., Bocquet, S., Brooks, D., Burke, D. L., Rosell, A., Carollo, D., Kind, M., Carretero, J., Costanzi, M., da Costa, L. N., Pereira, M. S., De Vicente, J., Desai, S., Diehl, H. T., Doel, P., Everett, S., Ferrero, Frieman, J., Garcia-Bellido, J., Gerdes, D. W., Gruen, D., Gruendl, R. A., Gschwend, J., Hinton, S. R., Hollowood, D. L., Honscheid, K., James, D. J., Kuehn, K., Marshall, J. L., Mena-Fernandez, J., Menanteau, F., Miquel, R., Ogando, R. C., Palmese, A., Paz-Chinchon, F., Pieres, A., Malagon, A., Raveri, M., Rodriguez-Monroy, M., Romer, A. K., Sanchez, E., Scarpine, Sevilla-Noarbe, Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M. C., Tarle, G., Taylor, G., Tucker, D. L., Weaverdyck, N., Wilkinson, R. D. 2023; 520 (2): 2009-2023

    View details for DOI 10.1093/mnras/stad145

    View details for Web of Science ID 000948990600004

  • Accretion disks, quasars and cosmology: meandering towards understanding ASTROPHYSICS AND SPACE SCIENCE Czerny, B., Cao, S., Jaiswal, V., Karas, V., Khadka, N., Martinez-Aldama, M., Naddaf, M., Panda, S., Nunez, F., Prince, R., Ratra, B., Sniegowska, M., Yu, Z., Zajacek, M. 2023; 368 (2)

    View details for DOI 10.1007/s10509-023-04165-7

    View details for Web of Science ID 000929409300001

  • Observational window effects on multi-object reverberation mapping MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Malik, U., Sharp, R., Martini, P., Davis, T. M., Tucker, B. E., Yu, Z., Penton, A., Lewis, G. F., Calcino, J. 2022; 516 (3): 3238-3253

    View details for DOI 10.1093/mnras/stac2263

    View details for Web of Science ID 000854276200005

  • An X-ray view of the ambiguous nuclear transient AT2019pev MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Yu, Z., Kochanek, C. S., Mathur, S., Auchettl, K., Grupe, D., Holoien, T. 2022; 515 (4): 5198-5210

    View details for DOI 10.1093/mnras/stac2073

    View details for Web of Science ID 000841537800022

  • OzDES reverberation mapping program: Lag recovery reliability for 6-yr C iv analysis MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Penton, A., Malik, U., Davis, T. M., Martini, P., Yu, Z., Sharp, R., Lidman, C., Tucker, B. E., Hoormann, J. K., Aguena, M., Allam, S., Annis, J., Asorey, J., Bacon, D., Bertin, E., Bhargava, S., Brooks, D., Calcino, J., Rosell, A., Carollo, D., Kind, M., Carretero, J., Costanzi, M., da Costa, L. N., Pereira, M. S., De Vicente, J., Diehl, H. T., Eifler, T. F., Everett, S., Ferrero, Fosalba, P., Frieman, J., Garcia-Bellido, J., Gaztanaga, E., Gerdes, D. W., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., James, D. J., Kim, A. G., Kuehn, K., Kuropatkin, N., Maia, M. G., Marshall, J. L., Menanteau, F., Miquel, R., Morgan, R., Moller, A., Palmese, A., Paz-Chinchon, F., Plazas, A. A., Romer, A. K., Sanchez, E., Scarpine, Scolnic, D., Serrano, S., Smith, M., Suchyta, E., Swanson, M. C., Tarle, G., To, C., Uddin, S. A., Varga, T. N., Wester, W., Wilkinson, R. D., Lewis, G., DES Collaboration 2022; 509 (3): 4008-4023

    View details for DOI 10.1093/mnras/stab3027

    View details for Web of Science ID 000756700900004

  • Standardizing reverberation-measured Mg II time-lag quasars, by using the radius-luminosity relation, and constraining cosmological model parameters MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Khadka, N., Yu, Z., Zajacek, M., Martinez-Aldama, M., Czerny, B., Ratra, B. 2021; 508 (4): 4722-4737

    View details for DOI 10.1093/mnras/stab2807

    View details for Web of Science ID 000715897400004

  • OzDES Reverberation Mapping Programme: the first Mg II lags from 5 yr of monitoring MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Yu, Z., Martini, P., Penton, A., Davis, T. M., Malik, U., Lidman, C., Tucker, B. E., Sharp, R., Kochanek, C. S., Peterson, B. M., Aguena, M., Allam, S., Andrade-Oliveira, F., Annis, J., Asorey, J., Bertin, E., Brooks, D., Burke, D. L., Calcino, J., Rosell, A., Carollo, D., Kind, M., Costanzi, M., da Costa, L. N., Pereira, M., Diehl, H. T., Everett, S., Ferrero, Flaugher, B., Frieman, J., Garcia-Bellido, J., Gaztanaga, E., Gerdes, D. W., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hinton, S. R., Hollowood, D. L., James, D. J., Kim, A. G., Kron, R., Kuehn, K., Kuropatkin, N., Lewis, G. F., Maia, M. G., March, M., Marshall, J. L., Menanteau, F., Miquel, R., Morgan, R., Moller, A., Palmese, A., Paz-Chinchon, F., Plazas, A. A., Sanchez, E., Scarpine, Serrano, S., Sevilla-Noarbe, Smith, M., Soares-Santos, M., Suchyta, E., Tarle, G., Thomas, D., To, C., Tucker, D. L. 2021; 507 (3): 3771-3788

    View details for DOI 10.1093/mnras/stab2244

    View details for Web of Science ID 000708848000045

  • Faint Active Galactic Nuclei Favor Unexpectedly Long Inter-band Time Lags ASTROPHYSICAL JOURNAL LETTERS Li, T., Sun, M., Xu, X., Brandt, W. N., Trump, J. R., Yu, Z., Wang, J., Xue, Y., Cai, Z., Gu, W., Homayouni, Y., Liu, T., Wang, J., Zhang, Z., Li, H. 2021; 912 (2)

    View details for DOI 10.3847/2041-8213/abf9aa

    View details for Web of Science ID 000651530300001

  • OzDES multi-object fibre spectroscopy for the Dark Energy Survey: results and second data release MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Lidman, C., Tucker, B. E., Davis, T. M., Uddin, S. A., Asorey, J., Bolejko, K., Brout, D., Calcino, J., Carollo, D., Carr, A., Childress, M., Hoormann, J. K., Foley, R. J., Galbany, L., Glazebrook, K., Hinton, S. R., Kessler, R., Kim, A. G., King, A., Kremin, A., Kuehn, K., Lagattuta, D., Lewis, G. F., Macaulay, E., Malik, U., March, M., Martini, P., Moller, A., Mudd, D., Nichol, R. C., Panther, F., Parkinson, D., Pursiainen, M., Sako, M., Swann, E., Scalzo, R., Scolnic, D., Sharp, R., Smith, M., Sommer, N. E., Sullivan, M., Webb, S., Wiseman, P., Yu, Z., Yuan, F., Zhang, B., Abbott, T. C., Aguena, M., Allam, S., Annis, J., Avila, S., Bertin, E., Bhargava, S., Brooks, D., Carnero Rosell, A., Kind, M., Carretero, J., Castander, F. J., Costanzi, M., da Costa, L. N., De Vicente, J., Doel, P., Eifler, T. F., Everett, S., Fosalba, P., Frieman, J., Garcia-Bellido, J., Gaztanaga, E., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hartley, W. G., Hollowood, D. L., Honscheid, K., James, D. J., Kuropatkin, N., Li, T. S., Lima, M., Lin, H., Maia, M. G., Marshall, J. L., Melchior, P., Menanteau, F., Miquel, R., Palmese, A., Paz-Chinchon, F., Plazas, A. A., Roodman, A., Rykoff, E. S., Sanchez, E., Santiago, B., Scarpine, Schubnell, M., Serrano, S., Sevilla-Noarbe, Suchyta, E., Swanson, M. C., Tarle, G., Tucker, D. L., Varga, T. N., Walker, A. R., Wester, W., Wilkinson, R. D., DES Collaboration 2020; 496 (1): 19-35

    View details for DOI 10.1093/mnras/staa1341

    View details for Web of Science ID 000560784700003

  • On reverberation mapping lag uncertainties MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Yu, Z., Kochanek, C. S., Peterson, B. M., Zu, Y., Brandt, W. N., Cackett, E. M., Fausnaugh, M. M., McHardy, I. M. 2020; 491 (4): 6045-6064

    View details for DOI 10.1093/mnras/stz3464

    View details for Web of Science ID 000512310600111

  • Quasar Accretion Disk Sizes from Continuum Reverberation Mapping in the DES Standard-star Fields ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES Yu, Z., Martini, P., Davis, T. M., Gruendl, R. A., Hoormann, J. K., Kochanek, C. S., Lidman, C., Mudd, D., Peterson, B. M., Wester, W., Allam, S., Annis, J., Asorey, J., Avila, S., Banerji, M., Bertin, E., Brooks, D., Buckley-Geer, E., Calcino, J., Rosell, A., Carollo, D., Kind, M., Carretero, J., Cunha, C. E., D'Andrea, C. B., Costa, L., De Vicente, J., Desai, S., Diehl, H. T., Doel, P., Eifler, T. F., Flaugher, B., Fosalba, P., Frieman, J., Garcia-Bellido, J., Gaztanaga, E., Glazebrook, K., Gruen, D., Gschwend, J., Gutierrez, G., Hartley, W. G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Hoyle, B., James, D. J., Kim, A. G., Krause, E., Kuehn, K., Kuropatkin, N., Lewis, G. F., Lima, M., Macaulay, E., Maia, M. G., Marshall, J. L., Menanteau, F., Miquel, R., Moller, A., Plazas, A. A., Romer, A. K., Sanchez, E., Scarpine, V., Schubnell, M., Serrano, S., Smith, M., Smith, R. C., Soares-Santos, M., Sobreira, F., Suchyta, E., Swann, E., Swanson, M. C., Tarle, G., Tucker, B. E., Tucker, D. L., Vikram, V. 2020; 246 (1)

    View details for DOI 10.3847/1538-4365/ab5e7a

    View details for Web of Science ID 000521090100001

  • C IV black hole mass measurements with the Australian Dark Energy Survey (OzDES) MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Hoormann, J. K., Martini, P., Davis, T. M., King, A., Lidman, C., Mudd, D., Sharp, R., Sommer, N. E., Tucker, B. E., Yu, Z., Allam, S., Asorey, J., Avila, S., Banerji, M., Brooks, D., Buckley-Geer, E., Burke, D. L., Calcino, J., Carnero Rosell, A., Carollo, D., Kind, M., Carretero, J., Castander, F. J., Childress, M., De Vicente, J., Desai, S., Diehl, H. T., Doel, P., Flaugher, B., Fosalba, P., Frieman, J., Garcia-Bellido, J., Gerdes, D. W., Gruen, D., Gutierrez, G., Hartley, W. G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Hoyle, B., James, D. J., Krause, E., Kuehn, K., Kuropatkin, N., Lewis, G. F., Lima, M., Macaulay, E., Maia, M. G., Menanteau, F., Miller, C. J., Miquel, R., Moller, A., Plazas, A. A., Romer, A. K., Roodman, A., Sanchez, E., Scarpine, V., Schubnell, M., Serrano, S., Sevilla-Noarbe, I., Smith, M., Smith, R. C., Soares-Santos, M., Sobreira, F., Suchyta, E., Swann, E., Swanson, M. C., Tarle, G., Uddin, S. A., DES Collaboration 2019; 487 (3): 3650–63

    View details for DOI 10.1093/mnras/stz1539

    View details for Web of Science ID 000478053200052

  • The Sloan Digital Sky Survey Reverberation Mapping Project: Quasar Host Galaxies at z < 0.8 from Image Decomposition ASTROPHYSICAL JOURNAL Yue, M., Jiang, L., Shen, Y., Hall, P. B., Yu, Z., Schneider, D. P., Ho, L. C., Horne, K., Petitjean, P., Trump, J. R. 2018; 863 (1)

    View details for DOI 10.3847/1538-4357/aacf04

    View details for Web of Science ID 000441126000007

https://orcid.org/0000-0003-0644-9282