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Computational Cosmology Center

Zarija Lukić

Zarija Lukić
Staff Scientist, Group Lead
Phone: +1 510 486 7378
Scientific Data Division

Zarija Lukić is a staff scientist leading the Computational Cosmology Center at Berkeley Lab. He earned his astrophysics PhD in 2008 from the University of Illinois at Urbana-Champaign and has been a postdoctoral researcher in the Theoretical Division of Los Alamos National Laboratory (2008-2011) and the Computational Research Division of Lawrence Berkeley Lab (2011-2013).

The main topic of Zarija's research is the large-scale structure of the Universe, with the focus on numerical simulations and ML/AI generative methods.  An essential component of this research is developing new computational methods for modeling and interpreting physical systems: building simulation codes that can efficiently run on the largest supercomputers, as well as methods for extracting scientific insights using simulation models and observational data from sky surveys.  Zarija is currently the P.I. on the LDRD project "Developing the next-generation of mock skies for cosmology" and the LBL P.I. on SciDAC-5 project "Enabling Cosmic Discoveries in the Exascale Era".  Over the past 20+ years, Zarija was the lead on many computational projects using world-leading supercomputers, including those at NERSC, the National Center for Supercomputing Applications (NCSA), the Los Alamos Supercomputer Center, the Oak Ridge Leadership Computing Facility (OLCF), and the Argonne Leadership Computing Facility (ALCF). 

In addition to astrophysics, Zarija's research included topics in applied nuclear physics. He published research on the practical use of cosmic rays to identify materials and remotely diagnose the state of damaged reactor cores in the wake of the 2011 Fukushima Daiichi Nuclear Power Plant accident.

Zarija's full publication list can be found on Google Scholar.

Journal Articles

Jean Sexton, Zarija Lukic, Ann Almgren, Chris Daley, Brian Friesen, Andrew Myers, and Weiqun Zhang, "Nyx: A Massively Parallel AMR Code for Computational Cosmology", The Journal Of Open Source Software, July 10, 2021,

Timur Takhtaganov, Zarija Lukić, Juliane Mueller, Dmitriy Morozov, "Cosmic Inference: Constraining Parameters With Observations and Highly Limited Number of Simulations", Astrophysical Journal, 2021, 906:74, doi: 10.3847/1538-4357/abc8ed

T. M. Schmidt, J. F. Hennawi, K.-G. Lee, Z. Lukić, J. Oñorbe, M. White, "Mapping quasar light echoes in 3D with Ly alpha forest tomography", The Astrophysical Journal, 2019, 882:165, doi: 10.3847/1538-4357/ab2fcb

J. Onorbe, F. B. Davies, Z. Lukić, J. F. Hennawi, D. Sorini, "Inhomogeneous Reionization Models in Cosmological Hydrodynamical Simulations", Monthly Notices of Royal Astronomical Society, 2019, 486:4075, doi: 10.1093/mnras/stz984

Vikram Khaire, Michael Walther, Joseph F. Hennawi, Jose Oñorbe, Zarija Lukić, Xavier J. Prochaska, Todd M. Tripp, Joseph N. Burchett, Christian Rodriguez, "The power spectrum of the Lyman-α Forest at z < 0.5", Monthly Notices of the Royal Astronomical Society, 2019, 486:769, doi: 10.1093/mnras/stz344

M. Mustafa, D. Bard, W. Bhimji, Z. Lukić, R. Al-Rfou, J. Kratochvil, "CosmoGAN: creating high-fidelity weak lensing convergence maps using Generative Adversarial Networks", Computational Astrophysics and Cosmology, 2019, 6:1, doi: 10.1186/s40668-019-0029-9

M. Walther, J. Onorbe, J. F. Hennawi, Z. Lukić, "New Constraints on IGM Thermal Evolution from the Ly-alpha Forest Power Spectrum", The Astrophysical Journal, 2019, 872:13, doi: 10.3847/1538-4357/aafad1

H. Hiss, M. Walther, J. F. Hennawi, J. Onorbe, J. M. O\rsquoMeara, A. Rorai, Z. Lukic, "A New Measurement of the Temperature\ndashdensity Relation of the IGM from Voigt Profile Fitting", Astrophysical Journal, 2018, 865:42, doi: 10.3847/1538-4357/aada86

A. Krolewski, K.-G. Lee, M. White, J. F. Hennawi, D. J., P. E. Nugent, Z. Lukic, C. W., A. M. Koekemoer, O. Le F\ evre, B. C., C. Maier, R. M. Rich, M. Salvato, L. Tasca, "Detection of z \tilde 2.3 Cosmic Voids from 3D Ly$\alpha$ Forest Tomography in the COSMOS Field", Astrophysical Journal, 2018, 861:60, doi: 10.3847/1538-4357/aac829

T. M. Schmidt, J. F. Hennawi, G. Worseck, F. B. Davies, Z. Lukic, J. Onorbe, "Modeling the He II Transverse Proximity Effect: Constraints on Quasar Lifetime and Obscuration", Astrophysical Journal, 2018, 861:122, doi: 10.3847/1538-4357/aac8e4

D. Sorini, J. Onorbe, J. F. Hennawi, Z. Lukic, "A Fundamental Test for Galaxy Formation Models: Matching the Lyman-$\alpha$ Absorption Profiles of Galactic Halos Over Three Decades in Distance", Astrophysical Journal, 2018, 859:125, doi: 10.3847/1538-4357/aabb52

Y.-Y. Mao, E. Kovacs, K. Heitmann, T. D. Uram, A. J., D. Campbell, S. A. Cora, J. DeRose, T. Matteo, S. Habib, A. P. Hearin, J. Bryce Kalmbach, K. S., F. Lanusse, Z. Lukic, R., J. A. Newman, N. Padilla, E. Paillas, A., P. M. Ricker, A. N. Ruiz, A. Tenneti, C. A., R. H. Wechsler, R. Zhou, Y. Zu, LSST Dark Energy Science Collaboration, "DESCQA: An Automated Validation Framework for Synthetic Sky Catalogs", Astrophysical Journal Supplement, 2018, 234:36, doi: 10.3847/1538-4365/aaa6c3

Jose Oñorbe, Joseph F. Hennawi, Zarija Lukić, and Michael Walther, "Constraining Reionization with the z ~ 5-6 Lyman-alpha Forest Power Spectrum: the Outlook after Planck", The Astrophysical Journal, 2017,

Frederick B. Davies, Joseph F. Hennawi, Anna-Christina Eilers, and Zarija Lukić, "A New Method to Measure the Post-Reionization Ionizing Background from the Joint Distribution of Lyman-α and Lyman-β Forest Transmission", The Astrophysical Journal, 2017,

Anna-Christina Eilers, Frederick B. Davies, Joseph F. Hennawi, J. Xavier Prochaska, Zarija Lukić, and Chiara Mazzucchelli, "Implications of z ~ 6 Quasar Proximity Zones for the Epoch of Reionization and Quasar Lifetimes", The Astrophsyical Journal, 2017, 840:24,

Alex Krolewski, Khee-Gan Lee, Zarija Lukić, and Martin White, "Measuring Alignments between Galaxies and the Cosmic Web at z ~ 2-3 Using IGM Tomography", The Astrophysical Journal, 2017, 837:31,

T. M. Schmidt, G. Worseck, J. F. Hennawi, J. X., N. H. M. Crighton, Z. Lukic, J. Onorbe, "Statistical Detection of the HeII Transverse Proximity Effect: Evidence for Sustained Quasar Activity for $\gt$25 Million Years", Frontiers in Astronomy and Space Sciences, 2017, 4:23, doi: 10.3389/fspas.2017.00023

J. O\ norbe, J. F. Hennawi, Z. Lukic, M. Walther, "Constraining Reionization with the z ~ 5-6 Ly-alpha Forest Power Spectrum: The Outlook after Planck", Astrophysical Journal, 2017, 847:63, doi: 10.3847/1538-4357/aa898d

A. Krolewski, K.-G. Lee, Z. Lukic, M. White, "Measuring Alignments between Galaxies and the Cosmic Web at z~ 2-3 Using IGM Tomography", Astrophysical Journal, 2017, 837:31, doi: 10.3847/1538-4357/837/1/31

A. Rorai, J. F. Hennawi, J. O\ norbe, M. White, J. X., G. Kulkarni, M. Walther, Z. Luki\ c, K.-G. Lee, "Measurement of the small-scale structure of the intergalactic medium using close quasar pairs", Science, 2017, 356:418-422, doi: 10.1126/science.aaf9346

J. O\ norbe, J. F. Hennawi, Z. Luki\ c, "Self-consistent Modeling of Reionization in Cosmological Hydrodynamical Simulations", Astrophysical Journal, 2017, 837:106, doi: 10.3847/1538-4357/aa6031

Brian Friesen, Ann Almgren, Zarija Lukić, Gunther Weber, Dmitriy Morozov, Vincent Beckner, Marcus Day, "In situ and in-transit analysis of cosmological simulations", Computational Astrophysics and Cosmology, 2016, 3 (4):1-18,

Daniele Sorini, José Oñorbe, Zarija Lukić, Joseph Hennawi, "Modeling the Lyman-alpha Forest in Collisionless Simulations", The Astrophysical Journal, 2016, 827:97,

Salman Habib, Adrian Pope, Hal Finkel, Nicholas Frontiere, Katrin Heitmann, David Daniel, Patricia Fasel, Vitali Morozov, George Zagaris, Tom Peterka, Venkatram Vishwanath, Zarija Lukić, Saba Sehrish, Wei-keng Liao, "HACC: Simulating sky surveys on state-of-the-art supercomputing architectures", New Astronomy, 2016, 42:49,

D Morozov, Z Lukić, "Master of puppets: Cooperative multitasking for in situ processing", HPDC 2016 - Proceedings of the 25th ACM International Symposium on High-Performance Parallel and Distributed Computing, 2016, 285--288, doi: 10.1145/2907294.2907301

M. A. Patwary, S. Byna, N. Satish, N. Sundaram, Z. Lukić, V. Roytershteyn, M. Anderson, Y. Yao, Prabhat, P. Dubey, "BD–CATS: Big Data Clustering at Trillion Particles Scale", Supercomputing, 2015, 6,

Zarija Lukić, Casey Stark, Peter Nugent, Martin White, Avery Meiksin, Ann Almgren, "The Lyman α forest in optically thin hydrodynamical simulations", Monthly Notices of the Royal Astronomical Society, 2015, 446:3697,

Salman Habib, Vitali Morozov, Nicholas Frontiere, Hal Finkel, Adrian Pope, Katrin Heitmann, Kalyan Kumaran, Venkat Vishwanath, Tom Peterka, Joe Insley, David Daniel, Patricia Fasel, Zarija Lukić, "HACC: Extreme Scaling and Performance Across Diverse Architectures", Supercomputing, 2013, 6,

Alexander Knebe, Frazer R. Pearce, Hanni Lux, Yago Ascasibar, Peter Behroozi, Javier Casado, Christine Corbett Moran, Juerg Diemand, Klaus Dolag, Rosa Dominguez-Tenreiro, Pascal Elahi, Bridget Falck, Stefan Gottlöber, Jiaxin Han, Anatoly Klypin, Zarija Lukić, Michal Maciejewski, Cameron K. McBride, Manuel E. Merchán, Stuart I. Muldrew, Mark Neyrinck, Julian Onions, Susana Planelles, Doug Potter, Vicent Quilis, Yann Rasera, Paul M. Ricker, Fabrice Roy, Andrés N. Ruiz, Mario A. Sgró, Volker Springel, Joachim Stadel, Paul M. Sutter, Dylan Tweed, Marcel Zemp, "Structure finding in cosmological simulations: the state of affairs", Monthly Notices of the Royal Astronomical Society, 2013, 435:1618,

C. L. Morris, Jeffrey Bacon, Konstantin Borozdin, Haruo Miyadera, John Perry, Evan Rose, Scott Watson, Tim White, Derek Aberle, J. Andrew Green, George G. McDuff, Zarija Lukić, Edward C. Milner, "A new method for imaging nuclear threats using cosmic ray muons", AIP Advances, 2013, 3:082128,

Haruo Miyadera, Konstantin N. Borozdin, Steve J. Greene, Zarija Lukić, Koji Masuda, Edward C. Milner, Christopher L. Morris, John O. Perry, "Imaging Fukushima Daiichi reactors with muons", AIP Advances, 2013, 3:052133,

John Perry, Mara Azzouz, Jeffrey Bacon, Konstantin Borozdin, Elliott Chen, Joseph Fabritius II, Edward Milner, Haruo Miyadera, Christopher Morris, Jonathan Roybal, Zhehui Wang, Bob Busch, Ken Carpenter, Adam A. Hecht, Koji Masuda, Candace Spore, Nathan Toleman, Derek Aberle and Zarija Lukić, "Imaging a nuclear reactor using cosmic ray muons", Journal of Applied Physics, 2013, 113:184909,

A. S. Almgren, J. B. Bell, M.J. Lijewski, Z. Lukić, E. Van Andel, "Nyx: A Massively Parallel AMR Code for Computational Cosmology", The Astrophysical Journal, 2013, 765:39,

C. L. Morris, Konstantin Borozdin, Jeffrey Bacon, Elliott Chen, Zarija Lukić, Edward Milner, Haruo Miyadera, John Perry, Dave Schwellenbach, Derek Aberle, Wendi Dreesen, J. Andrew Green, George G. McDuff, Kanetada Nagamine, Michael Sossong, Candace Spore, Nathan Toleman, "Obtaining material identification with cosmic ray radiography", AIP Advances, 2012, 2:042128,

Salman Habib, Vitali Morozov, Hal Finkel, Adrian Pope, Katrin Heitmann, Kalyan Kumaran, Tom Peterka, Joe Insley, David Daniel, Patricia Fasel, Nicholas Frontiere, Zarija Lukić, "The universe at extreme scale: multi-petaflop sky simulation on the BG/Q", Supercomputing, 2012, 4,

Konstantin Borozdin, Steven Greene, Zarija Lukić, Edward Milner, Haruo Miyadera, Christopher Morris, John Perry, "Cosmic Ray Radiography of the Damaged Cores of the Fukushima Reactors", Physical Review Letters, 2012, 109:152501,

Ujjaini Alam, Zarija Lukić, Suman Bhattacharya, "Galaxy Clusters as a Probe of Early Dark Energy", The Astrophysical Journal, 2011, 727:87,

Suman Bhattacharya, Katrin Heitmann, Martin White, Zarija Lukić, Christian Wagner, and Salman Habib, "Mass Function Predictions Beyond ΛCDM", The Astrophysical Journal, 2011, 732:122,

Alexander Knebe, Steffen R. Knollmann, Stuart I. Muldrew, Frazer R. Pearce, Miguel Angel Aragon-Calvo, Yago Ascasibar, Peter S. Behroozi, Daniel Ceverino, Stephane Colombi, Juerg Diemand, Klaus Dolag, Bridget L. Falck, Patricia Fasel, Jeff Gardner, Stefan Gottlöber, Chung-Hsing Hsu, Francesca Iannuzzi, Anatoly Klypin, Zarija Lukić, Michal Maciejewski, Cameron McBride, Mark C. Neyrinck, Susana Planelles, Doug Potter, Vicent Quilis, Yann Rasera, Justin I. Read, Paul M. Ricker, Fabrice Roy, Volker Springel, Joachim Stadel, Greg Stinson, P. M. Sutter, Victor Turchaninov, Dylan Tweed, Gustavo Yepes, Marcel Zemp, "Haloes gone MAD: The Halo-Finder Comparison Project", Monthly Notices of the Royal Astronomical Society, 2011, 415:2293,

Adrian Pope, Salman Habib, Zarija Lukić, David Daniel, Patricia Fasel, Nehal Desai, Katrin Heitmann, "The Accelerated Universe", Computing in Science and Engineering, 2010, 12:17,

Martin White, Adrian Pope, Jordan Carlson, Katrin Heitmann, Salman Habib, Patricia Fasel, David Daniel, and Zarija Lukić, "Particle Mesh Simulations of the Lyα Forest and the Signature of Baryon Acoustic Oscillations in the Intergalactic Medium", The Astrophysical Journal, 2010, 713:383,

Salman Habib, Adrian Pope, Zarija Lukić, David Daniel, Patricia Fasel, Nehal Desai, Katrin Heitmann, Chung-Hsing Hsu, Lee Ankeny, Graham Mark, "Hybrid petacomputing meets cosmology: The Roadrunner Universe project", Journal of Physics, 2009, 180:012019,

Zarija Lukić, Darren Reed, Salman Habib, Katrin Heitmann, "The Structure of Halos: Implications for Group and Cluster Cosmology", The Astrophysical Journal, 2009, 692:217,

Katrin Heitmann, Zarija Lukić, Patricia Fasel, Salman Habib, Michael S Warren, Martin White, James Ahrens, Lee Ankeny, Ryan Armstrong, Brian O'Shea, Paul M Ricker, Volker Springel, Joachim Stadel, Hy Trac, "The cosmic code comparison project", Computational Science & Discovery, 2008, 1:015003,

Zarija Lukić, Katrin Heitmann, Salman Habib, Sergei Bashinsky, Paul M. Ricker, "The Halo Mass Function: High-Redshift Evolution and Universality", The Astrophysical Journal, 2007, 671:1160,

Katrin Heitmann, Zarija Lukić, Salman Habib, and Paul M. Ricker, "Capturing Halos at High Redshifts", The Astrophysical Journal, 2006, 642:85,

Conference Papers

Erich Lohrmann, Zarija Lukic, Dmitriy Morozov, Juliane Mueller, "Programmable In Situ System for Iterative Workflows", Lecture Notes in Computer Science, Cham, Springer International Publishing, January 1, 2018, 10773:122--131, doi: 10.1007/978-3-319-77398-8\_7

Utkarsh Ayachit, Andrew Bauer, Earl PN Duque, Greg Eisenhauer, Nicola Ferrier, Junmin Gu, Kenneth E Jansen, Burlen Loring, Zarija Lukic, Suresh Menon, others, "Performance analysis, design considerations, and applications of extreme-scale in situ infrastructures", SC 16: Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis, 2016, 921--932, LBNL 1007264,


A. Aghamousa et al., "The DESI Experiment Part I: Science,Targeting, and Survey Design", arXiv:1611.00036, 2016,

A. Aghamousa et al., "The DESI Experiment Part II: Instrument Design", arXiv:1611.00037, 2016,

S. Habib, R. Roser, R. Gerber, K. Antypas, K. Riley, T. Williams, J. Wells, T. Straatsma, A. Almgren, J. Amundson, S. Bailey, D. Bard, K. Bloom, B. Bockelman, A. Borgland, J. Borrill, R. Boughezal, R. Brower, B. Cowan, H. Finkel, N. Frontiere, S. Fuess, L. Ge, N. Gnedin, S. Gottlieb, O. Gutsche, T. Han, K. Heitmann, S. Hoeche, K. Ko, O. Kononenko, T. LeCompte, Z. Li, Z. Lukic, W. Mori, P. Nugent, C.-K. Ng, G. Oleynik, B. O'Shea, N. Padmanabhan, D. Petravick, F.J. Petriello, J. Power, J. Qiang, L. Reina, T.J. Rizzo, R. Ryne, M. Schram, P. Spentzouris, D. Toussaint, J.-L. Vay, B. Viren, F. Wurthwein, L. Xiao, "ASCR/HEP Exascale Requirements Review Report", arXiv:1603.09303, 2016,