Zobrazeno 1 - 10
of 302
pro vyhledávání: '"Firmani, C."'
Autor:
Firmani, C., Avila-Reese, V.
Publikováno v:
MNRAS, 432, 2420-2432 (2013)
In order to attain a statistical description of the evolution of cosmic density fluctuations in agreement with results from the numerical simulations, we introduce a probability conditional formalism (CF) based on an inventory of isolated overdense r
Externí odkaz:
http://arxiv.org/abs/1304.0765
Autor:
Avila-Reese, V., Colín, P., González-Samaniego, A., Valenzuela, O., Firmani, C., Velázquez, H., Ceverino, D.
Publikováno v:
ApJ, 736, 134 (2011)
(Abridged) By means of high-resolution cosmological simulations in the context of the LCDM scenario, the specific star formation rate (SSFR=SFR/Ms, Ms is the stellar mass)--Ms and stellar mass fraction (Fs=Ms/Mh, Mh is the halo mass)--Ms relations of
Externí odkaz:
http://arxiv.org/abs/1103.4422
Autor:
Avila-Reese, V., Firmani, C.
Publikováno v:
RevMexAA (Serie de Conferencias) Vol. 40, pp. 27-35 (2011), Eds. W. J. Henney & S. Torres-Peimbert
The emerging empirical picture of galaxy stellar mass (Ms) assembly shows that galaxy population buildup proceeds from top to down in Ms. By connecting galaxies to LCDM halos and their histories, individual (average) Ms growth tracks can be inferred.
Externí odkaz:
http://arxiv.org/abs/1103.4329
Publikováno v:
2011RMxAA,47,235
By means of the abundance matching technique, we infer the local stellar and baryonic mass-halo mass (Ms-Mh and Mb-Mh) relation for central blue and red galaxies separately in the mass range Ms~10^8.5-10^12.0 Msun. The observational inputs are the SD
Externí odkaz:
http://arxiv.org/abs/1103.4151
Autor:
Firmani, C., Avila-Reese, V.
Publikováno v:
ApJ, 723, 755 (2010)
An unified picture of stellar and halo mass build-up as a function of mass is presented. Inferred stellar-dark halo mass relations of galaxies, Ms-Mh, out to z=4 together with average LCDM halo mass aggregation histories (MAHs) are used for inferring
Externí odkaz:
http://arxiv.org/abs/1008.4796
Publikováno v:
MNRAS, 404, 1100-1110 (2010)
The observations show that less massive the galaxies are, the higher on average is their specific star formation rate (SSFR = SFR/Ms, Ms is the stellar mass). Such a trend, called the 'SSFR downsizing' (SSFR-DS) phenomenon, is seen for local and high
Externí odkaz:
http://arxiv.org/abs/0909.5188
Autor:
Firmani, C., Avila-Reese, V.
Publikováno v:
Mon.Not.Roy.Astron.Soc. 396, 1675-1681 (2009)
By means of galaxy evolutionary models, we explore the direct consequences of the LCDM cosmogony on the size evolution of galactic discs, avoiding intentionally the introduction of intermediate (uncertain) astrophysical processes. Based on the shape
Externí odkaz:
http://arxiv.org/abs/0903.5325
We compare the spectral properties of 79 short and 79 long Gamma-Ray Bursts (GRBs) detected by BATSE and selected with the same limiting peak flux. Short GRBs have a low-energy spectral component harder and a peak energy slightly higher than long GRB
Externí odkaz:
http://arxiv.org/abs/0902.0983
Autor:
Firmani, C., Cabrera, J. I., Avila-Reese, V., Ghisellini, G., Ghirlanda, G., Nava, L., Bosnjak, Z.
Publikováno v:
Mon. Not. Roy. Astron. Soc. 393, 1209-1218 (2009)
For a sample of long GRBs with known redshift, we study the distribution of the evolutionary tracks on the rest-frame luminosity-peak energy Liso-Ep' diagram. We are interested in exploring the extension of the `Yonetoku' correlation to any phase of
Externí odkaz:
http://arxiv.org/abs/0811.1578
Publikováno v:
Astron. J. 136 (2008) 1340-1360
We explore how the slopes and scatters of the scaling relations of disk galaxies (Vm-L[-M], R-L[-M], and Vm-R) do change when moving from B to K bands and to stellar and baryonic quantities. For our compiled sample of 76 normal, non-interacting high
Externí odkaz:
http://arxiv.org/abs/0807.0636