Cosmic CARNage I: on the calibration of galaxy formation models
We present a comparison of nine galaxy formation models, eight semi-analytical, and one halo occupation distribution model, run on the same underlying cold dark matter simulation (cosmological box of comoving width 125h−1 Mpc, with a dark-matter particle mass of 1.24 × 109h−1M) and the same merger t...
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| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Formato: | Articulo Preprint |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/93589 https://academic.oup.com/mnras/article/475/3/2936/4768290 https://arxiv.org/pdf/1712.06420.pdf |
| Aporte de: |
| id |
I19-R120-10915-93589 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Astronomía Física Ciencias Naturales Ciencias Exactas N-body simulations Galaxies: haloes Galaxies: evolution Cosmology: theory Dark matter |
| spellingShingle |
Astronomía Física Ciencias Naturales Ciencias Exactas N-body simulations Galaxies: haloes Galaxies: evolution Cosmology: theory Dark matter Knebe, Alexander Pearce, Frazer R. Gonzalez Perez, Violeta Thomas, Peter A. Benson, Andrew Asquith, Rachel Blaizot, Jeremy Bower, Richard Carretero, Jorge Castander, Francisco J. Cattaneo, Andrea Cora, Sofía Alejandra Croton, Darren J. Cui, Weiguang Cunnama, Daniel Devriendt, Julien E. Elahi, Pascal J. Font, Andreea Fontanot, Fabio Gargiulo, Ignacio Daniel Helly, John Henriques, Bruno Lee, Jaehyun Mamon, Gary A. Onions, Julian Padilla, Nelson David Power, Chris Pujol, Arnau Ruiz, Andrés Nicolás Srisawat, Chaichalit Stevens, Adam R. H. Tollet, Edouard Vega Martínez, Cristian Antonio Yi, Sukyoung K. Cosmic CARNage I: on the calibration of galaxy formation models |
| topic_facet |
Astronomía Física Ciencias Naturales Ciencias Exactas N-body simulations Galaxies: haloes Galaxies: evolution Cosmology: theory Dark matter |
| description |
We present a comparison of nine galaxy formation models, eight semi-analytical, and one halo occupation distribution model, run on the same underlying cold dark matter simulation (cosmological box of comoving width 125h−1 Mpc, with a dark-matter particle mass of 1.24 × 109h−1M) and the same merger trees. While their free parameters have been calibrated to the same observational data sets using two approaches, they nevertheless retain some ‘memory’ of any previous calibration that served as the starting point (especially for the manually tuned models). For the first calibration, models reproduce the observed z = 0 galaxy stellar mass function (SMF) within 3σ. The second calibration extended the observational data to include the z = 2 SMF alongside the z ∼ 0 star formation rate function, cold gas mass, and the black hole–bulge mass relation. Encapsulating the observed evolution of the SMF from z = 2 to 0 is found to be very hard within the context of the physics currently included in the models. We finally use our calibrated models to study the evolution of the stellar-to-halo mass (SHM) ratio. For all models, we find that the peak value of the SHM relation decreases with redshift. However, the trends seen for the evolution of the peak position as well as the mean scatter in the SHM relation are rather weak and strongly model dependent. Both the calibration data sets and model results are publicly available. |
| format |
Articulo Preprint |
| author |
Knebe, Alexander Pearce, Frazer R. Gonzalez Perez, Violeta Thomas, Peter A. Benson, Andrew Asquith, Rachel Blaizot, Jeremy Bower, Richard Carretero, Jorge Castander, Francisco J. Cattaneo, Andrea Cora, Sofía Alejandra Croton, Darren J. Cui, Weiguang Cunnama, Daniel Devriendt, Julien E. Elahi, Pascal J. Font, Andreea Fontanot, Fabio Gargiulo, Ignacio Daniel Helly, John Henriques, Bruno Lee, Jaehyun Mamon, Gary A. Onions, Julian Padilla, Nelson David Power, Chris Pujol, Arnau Ruiz, Andrés Nicolás Srisawat, Chaichalit Stevens, Adam R. H. Tollet, Edouard Vega Martínez, Cristian Antonio Yi, Sukyoung K. |
| author_facet |
Knebe, Alexander Pearce, Frazer R. Gonzalez Perez, Violeta Thomas, Peter A. Benson, Andrew Asquith, Rachel Blaizot, Jeremy Bower, Richard Carretero, Jorge Castander, Francisco J. Cattaneo, Andrea Cora, Sofía Alejandra Croton, Darren J. Cui, Weiguang Cunnama, Daniel Devriendt, Julien E. Elahi, Pascal J. Font, Andreea Fontanot, Fabio Gargiulo, Ignacio Daniel Helly, John Henriques, Bruno Lee, Jaehyun Mamon, Gary A. Onions, Julian Padilla, Nelson David Power, Chris Pujol, Arnau Ruiz, Andrés Nicolás Srisawat, Chaichalit Stevens, Adam R. H. Tollet, Edouard Vega Martínez, Cristian Antonio Yi, Sukyoung K. |
| author_sort |
Knebe, Alexander |
| title |
Cosmic CARNage I: on the calibration of galaxy formation models |
| title_short |
Cosmic CARNage I: on the calibration of galaxy formation models |
| title_full |
Cosmic CARNage I: on the calibration of galaxy formation models |
| title_fullStr |
Cosmic CARNage I: on the calibration of galaxy formation models |
| title_full_unstemmed |
Cosmic CARNage I: on the calibration of galaxy formation models |
| title_sort |
cosmic carnage i: on the calibration of galaxy formation models |
| publishDate |
2018 |
| url |
http://sedici.unlp.edu.ar/handle/10915/93589 https://academic.oup.com/mnras/article/475/3/2936/4768290 https://arxiv.org/pdf/1712.06420.pdf |
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Repositorios |
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1764820491412963329 |