Kentaro Nagamine
Peta-Cosmology: galaxy formation and virtual astronomy
(jmg)Apr 2013 - Mar 2015
2016
Jason Jaacks, Steven L. Finkelstein, and Kentaro Nagamine (2016): Connecting the Dots: Tracking Galaxy Evolution Using Constant Cumulative Number Density at 3 ≤ z ≤ 7, Astrophysical Journal, American Astronomical Society, Vol 817, Num 2, pp174
2015
Robert Thompson, Romeel Davé, and Kentaro Nagamine (2015): The rise and fall of a challenger: the Bullet Cluster in Lambda cold dark matter simulations, Monthly Notices of the Royal Astronomical Society, Oxford University Press, Vol 452, Num 3, pp3030-3037
Ena Choi, Jeremiah P. Ostriker, Thorsten Naab, Ludwig Oser, and Benjamin P. Moster (2015): The Impact of Mechanical AGN Feedback on the Formation of Massive Early-Type Galaxies, Monthly Notices of the Royal Astronomical Society, Oxford University Press, Vol 449, Num 4, pp4105-4116
2014
Greg L. Bryan and Michael L. Norman and Brian W. O'Shea and Tom Abel and John H. Wise and Matthew J. Turk and Daniel R.
Reynolds and David C. Collins and Peng Wang and Samuel W. Skillman and Britton Smith and Robert P. Harkness and James
Bordner and Ji-hoon Kim and Michael Kuhlen and Hao Xu and Nathan Goldbaum and Cameron Hummels and Alexei G.
Kritsuk and Elizabeth Tasker and Stephen Skory and Christine M. Simpson and Oliver Hahn and Jeffrey S. Oishi and Geoffrey C.
So and Fen Zhao and Renyue Cen and Yuan Li and The Enzo Collaboration (2014): Enzo: An Adaptive Mesh Refinement Code for Astrophysics, Astrophysical Journal Supplement Series, The American Astronomical Society, Vol 211, Num 2, pp19
Ji-hoon Kim and Tom Abel and Oscar Agertz and Greg L. Bryan and Daniel Ceverino and Charlotte Christensen and Charlie Conroy and Avishai Dekel and Nickolay Y. Gnedin and Nathan J. Goldbaum and Javiera Guedes and Oliver Hahn and Alexander Hobbs and Philip F. Hopkins and Cameron B. Hummels and Francesca Iannuzzi and Dusan Keres and Anatoly Klypin and Andrey V. Kravtsov and Mark R. Krumholz and Michael Kuhlen and Samuel N. Leitner and Piero Madau and Lucio Mayer and Christopher E. Moody and Kentaro Nagamine and Michael L. Norman and Jose Onorbe and Brian W. O'Shea and Annalisa Pillepich and Joel R. Primack and Thomas Quinn and Justin I. Read and Brant E. Robertson and Miguel Rocha and Douglas H. Rudd and Sijing Shen and Britton D. Smith and Alexander S. Szalay and Romain Teyssier and Robert Thompson and Keita Todoroki and Matthew J. Turk and James W. Wadsley and John H. Wise and and Adi Zolotov (2014): The AGORA High-Resolution Galaxy Simulations Comparison Project, Astrophysical Journal Supplement Series, The American Astronomical Society, Vol 210, Num 1, pp14
Renyue Cen, Ana Roxana Pop, and Neta A. Bahcall (2014): Gas Loss in Simulated Galaxies as They Fall Into Clusters, Proceedings of the National Academy of Sciences, National Academy of Sciences, Vol 111, Num 22, pp7914-7919
Renyue Cen (2014): Evolution of Cold Streams and Emergence of the Hubble Sequence, Astrophysical Journal Letters, The American Astronomical Society, Vol 789, Num 1, ppL21
Renyue Cen (2014): Frequent Spin Reorientation of Galaxies Due to Local Interactions, Astrophysical Journal Letters, The American Astronomical Society, Vol 785, Num 1, ppL15
Renyue Cen (2014): On the Origin of the Hubble Sequence: I. Insights on Galaxy Color Migration from Cosmological Simulations, Astrophysical Journal, The American Astronomical Society, Vol 781, Num 1, pp38
Renyue Cen (2014): Temporal Self-Organization in Galaxy Formation, Astrophysical Journal Letters, The American Astronomical Society, Vol 785, Num 2, ppL21
Renyue Cen and Taysun Kimm (2014): Infrared Properties of Z=7 Galaxies from Cosmological Simulations, Astrophysical Journal, The American Astronomical Society, Vol 782, Num 1, pp32
Stephanie Tonnesen and Renyue Cen (2014): On the Reversal of SFR-Density Relation at Z=1: Insights from Simulations, Astrophysical Journal, The American Astronomical Society, Vol 788, Num 2, pp133
Taysun Kimm and Renyue Cen (2014): Escape Fraction of Ionizing Photons During Reionization: Effects Due to Supernova Feedback and Runaway OB Stars, Astrophysical Journal, The American Astronomical Society, Vol 788, Num 2, pp121
2013
Ludwig Oser, Manisha Gajbe, Kentaro Nagamine, Greg Bryan, Jeremiah P. Ostriker, and Renyue Cen (2013): Alleviating the Scaling Problem of Cosmological Hydrodynamic Simulations with HECA, Association for Computing Machinery, XSEDE '13: Proceedings of the Conference on Extreme Science and Engineering Discovery Environment Gateway to Discovery, pp9:1-9:4, San Diego, California, U.S.A.
M. Hirschmann, T. Naab, R. Dave, B. D. Oppenheimer, J. P. Ostriker, R. S. Somerville, L. Oser, R. Genzel, L. J. Tacconi, N. M. Forster-Schreiber, A. Burkert, and S. Genel (2013): The Effect of Metal Enrichment and Galactic Winds on Galaxy Formation in Cosmological Zoom Simulations, Monthly Notices of the Royal Astronomical Society, Oxford University Press, Vol 436, Num 4, pp2929-2949
Renyue Cen and Zheng Zheng (2013): The Nature of Lyα Blobs: Powered by Extreme Starbursts, Astrophysical Journal, The American Astronomical Society, Vol 775, Num 2, pp112
Taysun Kimm and Renyue Cen (2013): Heavy Dust Obscuration of Z=7 Galaxies in a Cosmological Hydrodynamic Simulation, Astrophysical Journal, The American Astronomical Society, Vol 776, Num 1, pp35
2011
Stephanie Tonnesen, Greg L. Bryan, and Rena Chen (2011): How to Light It Up: Simulating Ram-Pressure Stripped X-Ray Bright Tails, Astrophysical Journal, The American Astronomical Society, Vol 731, Num 2, pp98
D. C. Hambrick, J. P. Ostriker, P. H. Johansson, and T. Naab (2011): The Effects of X-Ray and UV Background Radiation on the Low-Mass Slope of the Galaxy Mass Function, Monthly Notices of the Royal Astronomical Society, Oxford University Press, Vol 413, Num 4, pp2421-2428
D. Clay Hambrick, Jeremiah P. Ostriker, Thorsten Naab, and Peter H. Johansson (2011): The Effects of X-Ray Feedback from Active Galactic Nuclei on Host Galaxy Evolution, Astrophysical Journal, The American Astronomical Society, Vol 738, Num 1, pp16
Gregory S. Novak, Jeremiah P. Ostriker, and Luca Ciotti (2011): Feedback from Central Black Holes in Elliptical Galaxies: Two-Dimensional Models Compared to One-Dimensional Models, Astrophysical Journal, The American Astronomical Society, Vol 737, Num 1, pp26
Hidenobu Yajima, Jun-Hwan Choi, and Kentaro Nagamine (2011): Escape Fraction of Ionizing Photons from High-Redshift Galaxies in Cosmological SPH Simulations, Monthly Notices of the Royal Astronomical Society, Oxford University Press, Vol 412, Num 1, pp411-422
Jun-Hwan Choi and Kentaro Nagamine (2011): Multicomponent and Variable Velocity Galactic Outflow in Cosmological Hydrodynamic Simulations, Monthly Notices of the Royal Astronomical Society, Oxford University Press, Vol 410, Num 4, pp2579-2592
Paramita Barai, Daniel Proga, and Kentaro Nagamine (2011): Smoothed Particle Hydrodynamics Simulations of Black Hole Accretion: A Step to Model Black Hole Feedback in Galaxies, Monthly Notices of the Royal Astronomical Society, Oxford University Press, Vol 418, Num 1, pp591-611
Renyue Cen and Nora Elisa Chisari (2011): Star Formation Feedback and Metal Enrichment History of the Intergalactic Medium, Astrophysical Journal, The American Astronomical Society, Vol 731, Num 1, pp11
2010
Stephanie Tonnesen and Greg L. Bryan (2010): The Tail of the Stripped Gas That Cooled: HI, Halpha and X-Ray Observational Signatures of Ram Pressure Stripping, Astrophysical Journal, The American Astronomical Society, Vol 709, Num 2, pp1203-1218
Jeremiah P. Ostriker, Ena Choi, Luca Ciotti, Gregory S. Novak, and Daniel Proga (2010): Momentum Driving: Which Physical Processes Dominate Active Galactic Nucleus Feedback?, Astrophysical Journal, The American Astronomical Society, Vol 722, Num 1, pp642-652
Jun-Hwan Choi and Kentaro Nagamine (2010): Effects of Cosmological Parameters and Star Formation Models on the Cosmic Star Formation History in Lambda CDM Cosmological Simulations, Monthly Notices of the Royal Astronomical Society, Oxford University Press, Vol 407, Num 3, pp1464-1476
Kentaro Nagamine, Jun-Hwan Choi, and Hidenobu Yajima (2010): Effects of Ultraviolet Background and Local Stellar Radiation on the H I Column Density Distribution, Astrophysical Journal Letters, The American Astronomical Society, Vol 725, Num 2, ppL219-L222
Luca Ciotti, Jeremiah P. Ostriker, and Daniel Proga (2010): Feedback from Central Black Holes in Elliptical Galaxies. III: Models with Both Radiative and Mechanical Feedback, Astrophysical Journal, The American Astronomical Society, Vol 717, Num 2, pp708-723
Ludwig Oser, Jeremiah P. Ostriker, Thorsten Naab, Peter H. Johansson, and Andreas Burkert (2010): The Two Phases of Galaxy Formation, Astrophysical Journal, The American Astronomical Society, Vol 725, Num 2, pp2312-2323
Min-Su Shin, Jeremiah P. Ostriker, and Luca Ciotti (2010): Feedback from Central Black Holes in Elliptical Galaxies. II: Can Purely Mechanical Energy Feedback Models Work?, Astrophysical Journal, The American Astronomical Society, Vol 711, Num 1, pp268-283
2009
M. Ryan Joung, Renyue Cen, and Greg L. Bryan (2009): Galaxy Size Problem at z=3: Simulated Galaxies Are Too Small, Astrophysical Journal Letters, The American Astronomical Society, Vol 692, Num 1, ppL1-L4
Ludwig Oser: Understanding Galaxy Formation with the help of Peta-scale computing
Blue Waters Symposium 2014, May 13, 2014
Astrophysicists, cosmologists to tap power of Blue Waters
Mar 18, 2010
Blue Waters is expected to be the most powerful supercomputer in the world for open scientific research when it comes online at Illinois in 2011. Scientists and engineers who are eager to tap this sustained-petaflop powerhouse for breakthrough research are already working closely with the Blue Waters project team to prepare their codes. The National Science Foundation provides Petascale Computing Resource Allocations (PRAC awards) to support these collaborations, which include help porting and re-engineering existing applications and in some cases building entirely new applications based on new programming models. Current PRAC projects—18 representing about 30 institutions—represent a wide range of scientific disciplines: biology and health, weather and climate, earthquakes and geophysics, and cosmology and our universe.
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Getting viral
Sep 1, 2009
"In the planning world, we work with policymakers to design studies of particular outcomes," says Virginia Tech's Keith Bisset. Months of planning, collaboration, and modeling might go into strategies for what a city, county, or entire country might do when facing a disease outbreak. "But now we also have tools that allow for a quick turnaround. We can do a situational assessment that shows them what a particular [outbreak] might look like tomorrow or next week as it unfolds. They describe the situation, and we can tell them the outcomes of various interventions," he says. This spring Bisset and a group from Virginia Tech joined forces with the Pittsburgh Supercomputing Center's Shawn Brown and Douglas Roberts and Diglio Simoni of North Carolina's Research Triangle Institute to win one of the first Petascale Computing Resource Allocations awards. With that support and with computing time on Blue Waters, they expect to model global epidemics, as well as smaller-scale outbreaks. Instead of looking at a few hundred million people, as the team members do with their current codes, they'll look at more than 6 billion people.
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