Zobrazeno 1 - 10
of 58
pro vyhledávání: '"de la Rosa, I. G."'
We test cosmological hydrodynamical simulations of galaxy formation regarding the properties of the Blue Cloud (BC), Green Valley (GV) and Red Sequence (RS), as measured on the 4000$\small{ \mathring {\mathrm A}}$ break strength vs stellar mass plane
Externí odkaz:
http://arxiv.org/abs/2010.11232
Autor:
Nogueira-Cavalcante, J. P., Gonçalves, T. S., Menéndez-Delmestre, K., de la Rosa, I. G., Charbonnier, A.
Massive quiescent compact galaxies have been discovered at high redshifts, associated with rapid compaction and cessation of star formation (SF). In this work we set out to quantify the time-scales in which SF is quenched in compact galaxies at inter
Externí odkaz:
http://arxiv.org/abs/1901.03712
Autor:
La Barbera, F., Pasquali, A., Ferreras, I., Gallazzi, A., de Carvalho, R. R., de la Rosa, I. G.
A detailed analysis of how environment affects the star formation history of early-type galaxies (ETGs) is undertaken via high signal to noise ratio stacked spectra obtained from a sample of 20,977 ETGs (morphologically selected) from the SDSS-based
Externí odkaz:
http://arxiv.org/abs/1408.6816
Autor:
La Barbera, F., Ferreras, I., Vazdekis, A., de la Rosa, I. G., de Carvalho, R. R., Trevisan, M., Falcón-Barroso, J., Ricciardelli, E.
We perform a spectroscopic study to constrain the stellar Initial Mass Function (IMF) by using a large sample of 24,781 early-type galaxies from the SDSS-based SPIDER survey. Clear evidence is found of a trend between IMF and central velocity dispers
Externí odkaz:
http://arxiv.org/abs/1305.2273
Autor:
Ferreras, I., La Barbera, F., de Carvalho, R. R., de la Rosa, I. G., Vazdekis, A., Falcon-Barroso, J., Ricciardelli, E.
Publikováno v:
Mon.Not.Roy.Astron.Soc. 429 (2013) L15-L19
An essential component of galaxy formation theory is the stellar initial mass function (IMF), that describes the parent distribution of stellar mass in star forming regions. We present observational evidence in a sample of early-type galaxies (ETGs)
Externí odkaz:
http://arxiv.org/abs/1206.1594
Autor:
La Barbera, F., Ferreras, I., de Carvalho, R. R., Lopes, P. A. A., Pasquali, A., de la Rosa, I. G., De Lucia, G.
Using optical-optical and optical-NIR colors, we analyze the radial dependence of age and metallicity inside massive (M* > 10^10.5 MSun), low-redshift (z<0.1), early-type galaxies (ETGs), residing in both high-density group regions and the field. On
Externí odkaz:
http://arxiv.org/abs/1108.0946
Autor:
La Barbera, F., de Carvalho, R. R., de la Rosa, I. G., Gal, R. R., Swindle, R., Lopes, P. A. A.
We present an analysis of stellar population gradients in 4,546 Early-Type Galaxies with photometry in $grizYHJK$ along with optical spectroscopy. A new approach is described which utilizes color information to constrain age and metallicity gradients
Externí odkaz:
http://arxiv.org/abs/1006.4056
We analyse the Fundamental Plane (FP) relation of $39,993$ early-type galaxies (ETGs) in the optical (griz) and $5,080$ ETGs in the Near-Infrared (YJHK) wavebands, forming an optical$+$NIR sample of $4,589$ galaxies. We focus on the analysis of the F
Externí odkaz:
http://arxiv.org/abs/1003.1119
Autor:
La Barbera, F., de Carvalho, R. R., de la Rosa, I. G., Lopes, P. A. A., Kohl-Moreira, J. L., Capelato, H. V.
This is the first paper of a series presenting a Spheroid's Panchromatic Investigation in Different Environmental Regions (SPIDER). The sample of spheroids consists of 5,080 bright (Mr<-20) Early-Type galaxies (ETGs), in the redshift range of 0.05 to
Externí odkaz:
http://arxiv.org/abs/0912.4547
We present a complete analysis of the Fundamental Plane of early-type galaxies (ETGs) in the nearby universe. The sample, as defined in paper I, comprises 39,993 ETGs located in environments covering the entire domain in local density (from field to
Externí odkaz:
http://arxiv.org/abs/0912.4558