Zobrazeno 1 - 10
of 1 188
pro vyhledávání: '"De Carvalho, R."'
In this work we improve the dynamic-evolutionary framework of two massive clusters at intermediate redshifts: Cl 0024+17 at $z \sim 0.4$ and MS 0451-03 at $z \sim 0.5$. The spectroscopic galaxy members were selected from Moran et al. (2007a), which c
Externí odkaz:
http://arxiv.org/abs/2410.19037
Autor:
Sampaio, V. M., de Carvalho, R. R., Aragón-Salamanca, A., Merrifield, M. R., Ferreras, I., Cornwell, D. J.
Galaxies infalling into clusters undergo both star-formation quenching and morphological transformation due to environmental effects. We investigate these processes and their timescales using a local sample of 20,191 cluster and 11,674 field galaxies
Externí odkaz:
http://arxiv.org/abs/2406.12273
We investigate the role that dense environments have on the quenching of star formation and the transformation of morphology for a sample of galaxies selected from the Sloan Digital Sky Survey. We make a distinction between galaxies falling into grou
Externí odkaz:
http://arxiv.org/abs/2403.07742
Autor:
Sampaio, V. M., Aragón-Salamanca, A., Merrifield, M. R., de Carvalho, R. R., Zhou, S., Ferreras, I.
We exploit a sample of 80,000 SDSS central galaxies to investigate the effect of AGN feedback on their evolution. We trace the demographics of optically-selected AGN (Seyferts) as a function of their internal properties and environment. We find that
Externí odkaz:
http://arxiv.org/abs/2307.10435
We have investigated the structure of the Hercules supercluster (SCL160) based on data originally extracted from the Sloan Digital Sky Survey SDSS-DR7. We have traced the mass distribution in the field through the numerical density-weighted by the $r
Externí odkaz:
http://arxiv.org/abs/2111.03053
We present a study of a sample of 254 clusters from the SDSS-DR7 Yang Catalog and an auxiliary sample of field galaxies to perform a detailed investigation on how galaxy quenching depends on both environment and galaxy stellar mass. Our samples are r
Externí odkaz:
http://arxiv.org/abs/2110.04342
Autor:
Sampaio, V. M., de Carvalho, R. R., Ferreras, I., Laganá, T. F., Ribeiro, A. L. B., Rembold, S. B.
By way of the projected phase-space (PPS), we investigate the relation between galaxy properties and cluster environment in a subsample of groups from the Yang Catalog. The sample is split according to the gaussianity of the velocity distribution in
Externí odkaz:
http://arxiv.org/abs/2103.03030
Autor:
Buytaert, J., Abud, A. Abed, Allport, P., Álvarez, A. Pazos, Akiba, K., Francisco, O. Augusto de Aguiar, Bay, A., Bernard, F., Baron, S., Bertella, C., Brunner, J., Bowcock, T., Jode, M. Buytaert-De, Byczynski, W., De Carvalho, R., Coco, V., Collins, P., Collins, R., Dikic, N., Dousse, N., Dowd, B., Dumps, R., Durante, P., Fadel, W., Farry, S., Prieto, A. Fernández, Flynn, G., Lima, V. Franco, Frei, R., Torreira, A. Gallas, Guida, R., Hennessy, K., Henriques, A., Hutchcroft, D., Ilic, S., Jevtic, A., Joram, C., Kapusniak, K., Cid, E. Lemos, Lindner, J., Lindner, R., Milovanovic, M., Mico, S., Morant, J., Morel, M., Männe, G., Murray, D., Nasteva, I., Neufeld, N., Neuhold, I., López, F. Pardo-Sobrino, Trigo, E. Pérez, Jallas, G. Pichel, Pilorz, E., Piquilloud, L., Pons, X., Reiner, D., Roosens, C., Rostalski, P., Schmidt, B., Saucet, E., Sanders, F., Sigaud, C., Schoettker, P., Schwemmer, R., Schindler, H., Sharma, A., Svihra, P., van Leemput, J., Vignaux, L., Vasey, F., Woonton, H., Wyllie, K.
HEV is a low-cost, versatile, high-quality ventilator, which has been designed in response to the COVID-19 pandemic. The ventilator is intended to be used both in and out of hospital intensive care units, and for both invasive and non-invasive ventil
Externí odkaz:
http://arxiv.org/abs/2007.12012
Autor:
Morell, D. F., Ribeiro, A. L. B., de Carvalho, R. R., Rembold, S. B., Lopes, P. A. A., Costa, A. P.
We analyze the dependence of galaxy evolution on cluster dynamical state and galaxy luminosities for a sample of 146 galaxy clusters from the Yang SDSS catalog. Clusters were split according to their velocity distribution in Gaussians (G) and Non-Gau
Externí odkaz:
http://arxiv.org/abs/2003.13836
Autor:
La Barbera, F., Vazdekis, A., Ferreras, I., Pasquali, A., Prieto, C. Allende, Martín-Navarro, I., Aguado, D. S., de Carvalho, R. R., Rembold, S., Falcón-Barroso, J., van de Ven, G.
Using new long-slit spectroscopy obtained with X-Shooter at ESO-VLT, we study, for the first time, radial gradients of optical and Near-Infrared IMF-sensitive features in a representative sample of galaxies at the very high-mass end of the galaxy pop
Externí odkaz:
http://arxiv.org/abs/1909.01382