Artículo
The Far-infrared Emission of the First Massive Galaxies
Fecha de publicación:
10/2018
Editorial:
IOP Publishing
Revista:
Astrophysical Journal
ISSN:
0004-637X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Massive Population II galaxies undergoing the first phase of vigorous star formation after the initial Population III stage should have high energy densities and silicate-rich interstellar dust. We have modeled the resulting far-infrared spectral energy distributions (SEDs), demonstrating that they are shifted substantially to bluer (`warmer´) wavelengths relative to the best fitting ones at z ~ 3, and with strong outputs in the 10 - 40 micron range. When combined with a low level of emission by carbon dust, their SEDs match that of Haro 11, a local moderately-low-metallicity galaxy undergoing a very young and vigorous starburst that is likely to approximate the relevant conditions in young Population II galaxies. We expect to see similar SEDs at high redshifts (z >= 5) given the youth of galaxies at this epoch. In fact, we find a progression with redshift in observed galaxy SEDs, from those resembling local ones at 2 < z < 4 to a closer resemblance with Haro 11 at 5 < z < 7. In addition to the insight on conditions in high redshift galaxies, this result implies that estimates of the total infrared luminosities at z ~ 6 based on measurements near lambda ~ 1 mm can vary by factors of 2 - 4, depending on the SED template used. Currently popular modified blackbodies or local templates can result in significant underestimates compared with the preferred template based on the SED of Haro 11.
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IAFE)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Citación
de Rossi, Maria Emilia; Rieke, George H.; Shivaei, Irene; Bromm, Volker; Lyu, Jianwei ; The Far-infrared Emission of the First Massive Galaxies; IOP Publishing; Astrophysical Journal; 10-2018
Compartir
Altmétricas
Items relacionados
Mostrando titulos relacionados por título, autor y tema.
-
Artículo New quantitative nitrogen abundance estimations in a sample of Seyfert 2 active galactic nucleiDors Jr., O. L.; Arellano Córdova, K. Z.; Cardaci, Monica Viviana ; Hägele, Guillermo Federico (Wiley Blackwell Publishing, Inc, 2017-06)
-
Dors, Oli L.; Agarwal, B.; Hägele, Guillermo Federico ; Cardaci, Monica Viviana ; Rydberg, Claes Erik; Riffel, R. A.; Oliveira, A. S.; Krabbe, A. C. (Wiley Blackwell Publishing, Inc, 2018-09)
-
Carvalho, S.P.; Dors, O. L.; Cardaci, Monica Viviana ; Hägele, Guillermo Federico ; Krabbe, Nora Cristina; Pérez Montero, E.; Monteiro, A.F.; Armah, M.; Freitas Lemes, P. (Wiley Blackwell Publishing, Inc, 2020-06)