PyUltraLight: a pseudo-spectral solver for ultralight dark matter dynamics

被引：62

作者：

Edwards, Faber ^{[1
]}

Kendall, Emily ^{[1
]}

Hotchkiss, Shaun ^{[1
]}

Easther, Richard ^{[1
]}

机构：

[1] Univ Auckland, Dept Phys, Private Bag 92019, Auckland, New Zealand

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2018年 / 10期

关键词：

dark matter simulations; dark matter theory; galaxy dynamics; CODE; INTERFERENCE; SIMULATIONS; SOLITONS;

D O I：

10.1088/1475-7516/2018/10/027

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

PYULTRALIGHT simulates the dynamics of ultralight dark matter in a non-expanding background. PYULTRALIGHT can describe the evolution of several interacting ultralight dark matter halos or one or more halos orbiting a central, fixed Newtonian potential, the latter scenario corresponding to dwarf galaxies orbiting a massive central galaxy. We verify PYULTRALIGHT by showing that it reproduces qualitative dynamical features of previously published simulations and demonstrate that it has excellent energy-conservation properties. PYULTRALIGHT is implemented in a Python-based Jupyter notebook, solving the Schrodinger-Poisson equation governing ultralight scalar field dark matter dynamics in the non-relativistic regime using a symmetrised split-step pseudospectral algorithm. The notebook interface makes it simple to specify simulation parameters and visualise the resulting output but performance-critical routines are managed via calls to computationally efficient compiled libraries. PYULTRALIGHT runs on standard desktop hardware with support for shared memory mutlithreading and is available on GitHub.

引用

页数：26

共 48 条

[1] Planck 2015 results XIII. Cosmological parameters [J].

Ade, P. A. R. ;

Aghanim, N. ;

Arnaud, M. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartlett, J. G. ;

Bartolo, N. ;

Battaner, E. ;

Battye, R. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bonaldi, A. ;

Bonavera, L. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chary, R. -R. ;

Chiang, H. C. ;

Chluba, J. ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Combet, C. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. ;

Davies, R. D. ;

Davis, R. J. ;

de Bernardis, P. .

ASTRONOMY & ASTROPHYSICS, 2016, 594

[2]

Adeel Ajaib M., ARXIV13025601

[3]

Agrawal G., 2013, OPTICS PHOTONICS SER

[4] Results from a Search for Dark Matter in the Complete LUX Exposure [J].

Akerib, D. S. ;

Alsum, S. ;

Araujo, H. M. ;

Bai, X. ;

Bailey, A. J. ;

Balajthy, J. ;

Beltrame, P. ;

Bernard, E. P. ;

Bernstein, A. ;

Biesiadzinski, T. P. ;

Boulton, E. M. ;

Bramante, R. ;

Bras, P. ;

Byram, D. ;

Cahn, S. B. ;

Carmona-Benitez, M. C. ;

Chan, C. ;

Chiller, A. A. ;

Chiller, C. ;

Currie, A. ;

Cutter, J. E. ;

Davison, T. J. R. ;

Dobi, A. ;

Dobson, J. E. Y. ;

Druszkiewicz, E. ;

Edwards, B. N. ;

Faham, C. H. ;

Fiorucci, S. ;

Gaitskell, R. J. ;

Gehman, V. M. ;

Ghag, C. ;

Gibson, K. R. ;

Gilchriese, M. G. D. ;

Hall, C. R. ;

Hanhardt, M. ;

Haselschwardt, S. J. ;

Hertel, S. A. ;

Hogan, D. P. ;

Horn, M. ;

Huang, D. Q. ;

Ignarra, C. M. ;

Ihm, M. ;

Jacobsen, R. G. ;

Ji, W. ;

Kamdin, K. ;

Kazkaz, K. ;

Khaitan, D. ;

Knoche, R. ;

Larsen, N. A. ;

Lee, C. .

PHYSICAL REVIEW LETTERS, 2017, 118 (02)

[5] Nyx: A MASSIVELY PARALLEL AMR CODE FOR COMPUTATIONAL COSMOLOGY [J].

Almgren, Ann S. ;

Bell, John B. ;

Lijewski, Mike J. ;

Lukic, Zarija ;

Van Andel, Ethan .

ASTROPHYSICAL JOURNAL, 2013, 765 (01)

[6] Oscillons after Inflation [J].

Amin, Mustafa A. ;

Easther, Richard ;

Finkel, Hal ;

Flauger, Raphael ;

Hertzberg, Mark P. .

PHYSICAL REVIEW LETTERS, 2012, 108 (24)

[7] Inflaton fragmentation and oscillon formation in three dimensions [J].

Amin, Mustafa A. ;

Easther, Richard ;

Finkel, Hal .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2010, (12)

[8] GALACTICUS: A semi-analytic model of galaxy formation [J].

Benson, Andrew J. .

NEW ASTRONOMY, 2012, 17 (02) :175-197

[9] Beyond ΛCDM: Problems, solutions, and the road ahead [J].

Bull, Philip ;

Akrami, Yashar ;

Adamek, Julian ;

Baker, Tessa ;

Bellini, Emilio ;

Jimenez, Jose Beltran ;

Bentivegna, Eloisa ;

Camera, Stefano ;

Clesse, Sebastien ;

Davis, Jonathan H. ;

Di Dio, Enea ;

Enander, Jonas ;

Heavens, Alan ;

Heisenberg, Lavinia ;

Hu, Bin ;

Llinares, Claudio ;

Maartens, Roy ;

Mortsell, Edvard ;

Nadathur, Seshadri ;

Noller, Johannes ;

Pasechnik, Roman ;

Pawlowski, Marcel S. ;

Pereira, Thiago S. ;

Quartin, Miguel ;

Ricciardone, Angelo ;

Riemer-Sorensen, Signe ;

Rinaldi, Massimiliano ;

Sakstein, Jeremy ;

Saltas, Ippocratis D. ;

Salzano, Vincenzo ;

Sawicki, Ignacy ;

Solomon, Adam R. ;

Spolyar, Douglas ;

Starkman, Glenn D. ;

Steer, Daniele ;

Tereno, Ismael ;

Verde, Licia ;

Villaescusa-Navarro, Francisco ;

von Strauss, Mikael ;

Winther, Hans A. .

PHYSICS OF THE DARK UNIVERSE, 2016, 12 :56-99

[10] EQUILIBRIUM AND STABILITY OF RIEMANN ELLIPSOIDS .I. [J].

CHANDRAS.S .

ASTROPHYSICAL JOURNAL, 1965, 142 (03) :890-&

← 1 2 3 4 5 →