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Artale, M.C.; Pellizza, L.J.; Tissera, P.B. "Chemical abundances and spatial distribution of long gamma-ray bursts" (2011) Monthly Notices of the Royal Astronomical Society. 415(4):3417-3422
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Abstract:

We analyse the spatial distribution within host galaxies and chemical properties of the progenitors of long gamma-ray bursts (LGRBs) as a function of redshift. By using hydrodynamical cosmological simulations, which include star formation, supernova feedback and chemical enrichment, and based on the hypothesis of the collapsar model with low metallicity, we investigate the progenitors in the range 0 < z < 3. Our results suggest that the sites of these phenomena tend to be located in the central regions of the hosts at high redshifts but move outwards for lower ones. We find that scenarios with low metallicity cut-offs best fit current observations. For these scenarios, LGRBs tend to be [Fe/H]-poor and show a strong α-enhancement evolution towards lower values as redshift decreases. The variation of typical burst sites with redshift would imply that they might be tracing different parts of galaxies at different redshifts. © 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS.

Registro:

Documento: Artículo
Título:Chemical abundances and spatial distribution of long gamma-ray bursts
Autor:Artale, M.C.; Pellizza, L.J.; Tissera, P.B.
Filiación:Instituto de Astronomía y Física del Espacio, C.C. 67 Suc. 28, C1428ZAA Ciudad de Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, Rivadavia 1917, C1033AAJ Ciudad de Buenos Aires, Argentina
Palabras clave:Galaxies: abundances; Galaxies: evolution; Gamma-ray burst: general
Año:2011
Volumen:415
Número:4
Página de inicio:3417
Página de fin:3422
DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.18955.x
Título revista:Monthly Notices of the Royal Astronomical Society
Título revista abreviado:Mon. Not. R. Astron. Soc.
ISSN:00358711
CODEN:MNRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v415_n4_p3417_Artale

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Citas:

---------- APA ----------
Artale, M.C., Pellizza, L.J. & Tissera, P.B. (2011) . Chemical abundances and spatial distribution of long gamma-ray bursts. Monthly Notices of the Royal Astronomical Society, 415(4), 3417-3422.
http://dx.doi.org/10.1111/j.1365-2966.2011.18955.x
---------- CHICAGO ----------
Artale, M.C., Pellizza, L.J., Tissera, P.B. "Chemical abundances and spatial distribution of long gamma-ray bursts" . Monthly Notices of the Royal Astronomical Society 415, no. 4 (2011) : 3417-3422.
http://dx.doi.org/10.1111/j.1365-2966.2011.18955.x
---------- MLA ----------
Artale, M.C., Pellizza, L.J., Tissera, P.B. "Chemical abundances and spatial distribution of long gamma-ray bursts" . Monthly Notices of the Royal Astronomical Society, vol. 415, no. 4, 2011, pp. 3417-3422.
http://dx.doi.org/10.1111/j.1365-2966.2011.18955.x
---------- VANCOUVER ----------
Artale, M.C., Pellizza, L.J., Tissera, P.B. Chemical abundances and spatial distribution of long gamma-ray bursts. Mon. Not. R. Astron. Soc. 2011;415(4):3417-3422.
http://dx.doi.org/10.1111/j.1365-2966.2011.18955.x