A mysterious Universe: Revealing the bright and dark sides of the cosmos

Autors/ores

  • Susana Planelles University of Valencia (Spain).
  • Veronica Biffi University of Trieste (Italy).

DOI:

https://doi.org/10.7203/metode.7.8793

Paraules clau:

cosmology, astrophysics, baryons, dark matter, dark energy

Resum

Why is our universe as we observe it? Will it be the same forever? Understanding the nature of the main constituents of the universe is crucial to obtain a precise description of the way in which it reached its present state. Nowadays, many independent observations support a picture in which the matter content of the universe is shared between an ordinary and observable baryonic component (~5?%) and an invisible dark matter (~23?%). The remaining ~72?% of the universe content is in the form of a completely mysterious dark energy field. This composition emphasizes that, while ~95?% of our universe represents a major uncertainty for us, even the minor contribution from normal and, apparently, known matter entails important challenges for cosmologists.

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Biografies de l'autor/a

Susana Planelles, University of Valencia (Spain).

Postdoctoral researcher at the University of Valencia (Spain), where she also obtained her PhD in 2011. Her scientific interests are mainly focused on the field of Computational Cosmology. In particular, a major part of her research is devoted to analyse and interpret the formation and evolution of galaxy clusters in large cosmological simulations.

Veronica Biffi, University of Trieste (Italy).

Postdoctoral researcher at the University of Trieste and associated to the INAF Observatory of Trieste (Italy). Starting with her PhD in Munich, her research mainly focuses on the physics of galaxy clusters, through their study via numerical cosmological simulations and the comparison to X-ray synthetic observations of the hot intra-cluster medium.

Referències

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Eckert, D., Jauzac, M., Shan, H., Kneib, J. P., Erben, T., Israel, H., ... Tchernin, C. (2015). Warm-hot baryons comprise 5-10 per cent of filaments in the cosmic web. Nature, 528, 105–107. doi: 10.1038/nature16058

Hamilton, J. Ch. (2013). What have we learned from observational cosmology? Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics, 46(A), 70–85. doi: 10.1016/j.shpsb.2013.02.002

Hernández-Monteagudo, C., Ma, Y.-Z., Kitaura, F. S., Wang, W., Génova-Santos, R., Macías-Pérez, J., & Herranz, D. (2015). Evidence of the missing baryons from the kinematic Sunyaev-Zeldovich effect in Planck data. Physical Review Letters, 115(19). doi: 10.1103/PhysRevLett.115.191301

Moskowitz, C. (2016, April 11). Cosmic speed measurement suggests dark energy mystery. Scientific American. Retrieved from http://www.scientificamerican.com/article/cosmic-speed-measurement-suggests-dark-energy-mystery/

Olmo, G. J. (2012). Open questions in cosmology. Rijeka: InTech. doi: 10.5772/45746

Riess, A. G., Macri, L. M., Hoffmann, S. L., Scolnic, D., Casertano, S., Filippenko, A. V., ... Foley, R. J. (2016). A 2.4 % determination of the local value of the Hubble constant. The Astrophysical Journal, 826(1). doi: 10.3847/0004-637X/826/1/56

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Publicades

2017-06-20

Com citar

Planelles, S., & Biffi, V. (2017). A mysterious Universe: Revealing the bright and dark sides of the cosmos. Metode Science Studies Jornal, (7), 153–161. https://doi.org/10.7203/metode.7.8793
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Número

Unravelling science: Pulling the thread of knowledge (2017)

Secció

L'univers violent. Astrofísica d'altes energies i cosmologia del segle XXI

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