Conferencia
Pellizza, L.J.; Artale, M.C.; Tissera, P.B. "Chemical properties of long gamma-ray bursts progenitors in cosmological simulations" (2012) 2012 Gamma-Ray Bursts Conference, GRB 2012. 2012-May
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Abstract:
In this work, we investigate the chemical dependence of the progenitors of long gamma-ray bursts. Using hydrodynamical cosmological simulations consistent with the concordance Λ-CDM model which include star formation, chemical enrichment and supernova feedback in a self-consistent way, and assuming that these bursts are produced by a subset of massive stars (possibly with distinct chemical properties), we compute the LGRB rate at different redshifts. Introducing prescriptions for their peak isotropic luminosity function and intrinsic spectrum, and using a Monte Carlo scheme to model their detectability by different high-energy observatories, we compute the distributions of the burst observables (peak flux, spectral peak energy) and compare them to actual data. Our preliminary results show that a possible chemical dependence for LGRBs progenitors cannot be ruled out, but it might be more complex than the usually assumed metallicity cut-off. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
Registro:
| Documento: | Conferencia |
| Título: | Chemical properties of long gamma-ray bursts progenitors in cosmological simulations |
| Autor: | Pellizza, L.J.; Artale, M.C.; Tissera, P.B. |
| Filiación: | Instituto de Astronomía y Física del Espacio, Buenos Aires, Argentina Consejo Nacional de Investigaciones Cientícas y Técnicas, Argentina Max Planck Institute for Astrophysics, Germany |
| Palabras clave: | Chemical properties; Stars; Energy Observatory; Gamma ray bursts; Luminosity functions; Massive stars; Metallicities; Monte carlo schemes; Spectral peak energies; Star formations; Gamma rays |
| Año: | 2012 |
| Volumen: | 2012-May |
| Título revista: | 2012 Gamma-Ray Bursts Conference, GRB 2012 |
| Título revista abreviado: | Proc. Sci. |
| ISSN: | 18248039 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v2012-May_n_p_Pellizza |
Referencias:
- Artale, M.C., Pellizza, L.J., Tissera, P.B., Chemical abundances and spatial distribution of long gamma-ray bursts (2011) MNRAS, (415), p. 3417
- Band, D., Matteson, J., Ford, L., BATSE observations of gamma-ray burst spectra (1993) I - Spectral Diversity ApJ, (413), p. 281
- Chisari, N.E., Tissera, P.B., Pellizza, L.J., Host galaxies of long gamma-ray bursts in the Millennium Simulation (2011) MNRAS, (408), p. 647
- Daigné, F., Rossi, E.M., Mochkovitch, R., The redshift distribution of Swift gamma-ray bursts: Evidence for evolution (2006) MNRAS, 372, p. 1034
- Elliott, J., Greiner, J., Khochfar, S., Schady, P., Johnson, J.L., Rau, A., The long γ-ray burst rate and the correlation with host galaxy properties (2012) A&A, (539), p. 113
- Hopkins, A.M., Beacom, J.F., On the Normalization of the Cosmic Star Formation History (2006) ApJ, (651), p. 142
- Nuza, S.E., Tissera, P.B., Pellizza, L.J., The host galaxies of long-duration gamma-ray bursts in a cosmological hierarchical scenario (2007) MNRAS, 375, p. 665
- Pellizza, L., Nuza, S., Tissera, P., (2008) Proceedings of The First La Plata International School: “Compact Objects and Their Emission, p. 109. , G.E. Romero & I. Andruchow
- Porciani, C., Madau, P., On the Association of Gamma-Ray Bursts with Massive Stars: Implications for Number Counts and Lensing Statistics (2001) ApJ, (548), p. 522. , astro-ph/0008294
- Salvaterra, R., Chincarini, G., The Gamma Ray Burst Luminosity Function in the Light of the Swift 2-year Data (2007) ApJ, (656), p. 49. , astro-ph/0612278
- Scannapieco, C., Tissera, P.B., White, S., Springel, V., Feedback and metal enrichment in cosmological smoothed particle hydrodynamics simulations - I. A model for chemical enrichment (2005) MNRAS, 364, p. 552. , astro-ph/0505440v5
- Scannapieco, C., Tissera, P.B., White, S., Springel, V., Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback (2006) MNRAS, 371, p. 1125
- Stern, B., Tikhomirova, Y., Kompaneets, D., An Off-Line Scan of the BATSE Daily Records and a Large Uniform Sample of Gamma-Ray Bursts (2001) ApJ, (563), p. 80. , astro-ph/0009447
- Vedrenne, G., Atteia, J., Gamma-Ray Bursts: The Brigthest Explosions in The Universe, , Springer Praxis Books, Jointly published with Praxis Publishing, UK
Citas:
---------- APA ----------
Pellizza, L.J., Artale, M.C. & Tissera, P.B. (2012) . Chemical properties of long gamma-ray bursts progenitors in cosmological simulations. 2012 Gamma-Ray Bursts Conference, GRB 2012, 2012-May.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v2012-May_n_p_Pellizza [ ]
---------- CHICAGO ----------
Pellizza, L.J., Artale, M.C., Tissera, P.B. "Chemical properties of long gamma-ray bursts progenitors in cosmological simulations" . 2012 Gamma-Ray Bursts Conference, GRB 2012 2012-May (2012).Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v2012-May_n_p_Pellizza [ ]
---------- MLA ----------
Pellizza, L.J., Artale, M.C., Tissera, P.B. "Chemical properties of long gamma-ray bursts progenitors in cosmological simulations" . 2012 Gamma-Ray Bursts Conference, GRB 2012, vol. 2012-May, 2012.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v2012-May_n_p_Pellizza [ ]
---------- VANCOUVER ----------
Pellizza, L.J., Artale, M.C., Tissera, P.B. Chemical properties of long gamma-ray bursts progenitors in cosmological simulations. Proc. Sci. 2012;2012-May.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v2012-May_n_p_Pellizza [ ]
