Zobrazeno 1 - 10
of 453
pro vyhledávání: '"De Propris, R"'
Autor:
Bevacqua, D., Saracco, P., Boecker, A., D'Ago, G., De Lucia, G., De Propris, R., La Barbera, F., Pasquali, A., Spiniello, C., Tortora, C.
Publikováno v:
A&A 690, A150 (2024)
We investigate the stellar Mass-Metallicity Relation (MZR) using a sample of 637 quiescent galaxies with 10.4 <= log(M*/M ) < 11.7 selected from the LEGA-C survey at 0.6 <= z <= 1. We derive mass-weighted stellar metallicities using full-spectral fit
Externí odkaz:
http://arxiv.org/abs/2407.12704
Autor:
Phillipps, S., Bellstedt, S., Bremer, M. N., De Propris, R., James, P. A., Casura, S., Liske, J., Holwerda, B. W.
The star formation rate in galaxies is well known to correlate with stellar mass (the `star-forming main sequence'). Here we extend this further to explore any additional dependence on galaxy surface brightness, a proxy for stellar mass surface densi
Externí odkaz:
http://arxiv.org/abs/2211.15998
We derive the evolution of the ultraviolet upturn colour from a sample of field luminous red galaxies at $0.3 < z < 0.7$ with $-24 < M_r < -21.5$. No individual objects are securely detected, so we stack several hundred galaxies within absolute magni
Externí odkaz:
http://arxiv.org/abs/2203.02175
We measure the near-UV (rest-frame $\sim 2400$\AA) to optical color for early-type galaxies in 12 clusters at $0.3 < z < 1.0$. We show that this is a suitable proxy for the more common far-ultraviolet bandpass used to measure the ultraviolet upturn a
Externí odkaz:
http://arxiv.org/abs/2109.13935
Autor:
Phillipps, S., Ali, S. S., Bremer, M. N., De Propris, R., Sansom, A. E., Cluver, M. E., Alpaslan, M., Brough, S., Brown, M. J. I., Davies, L. J. M., Driver, S. P., Grootes, . M. W., Holwerda, B. W., Hopkins, A. M., James, P. A., Pimbblet, K., Robotham, A. S. G., Taylor, E. N., Wang, L.
We use data from the GAMA and GALEX surveys to demonstrate that the UV upturn, an unexpected excess of ultraviolet flux from a hot stellar component, seen in the spectra of many early-type galaxies, arises from processes internal to individual galaxi
Externí odkaz:
http://arxiv.org/abs/2001.02465
Autor:
Phillipps, S., Bremer, M. N., Hopkins, A. M., De Propris, R., Taylor, E. N., James, P. A., Davies, L. J. M., Cluver, M., Driver, S. P., Eales, S. A., Holwerda, B. W., Kelvin, L. S., Sansom, A. E.
We explore the constraints that can be placed on the evolutionary timescales for typical low redshift galaxies evolving from the blue cloud through the green valley and onto the red sequence. We utilise galaxies from the GAMA survey with 0.1 < z < 0.
Externí odkaz:
http://arxiv.org/abs/1903.07675
Using GALEX, UVOT and optical photometry, we explore the prevalence and strength of the UV-upturn in the spectra of quiescent early type galaxies in several nearby clusters. Even for galaxies with completely passive optical colours, there is a large
Externí odkaz:
http://arxiv.org/abs/1801.09688
Autor:
Bremer, M. N., Phillipps, S., Kelvin, L. S., De Propris, R., Kennedy, Rebecca, Moffett, Amanda J., Bamford, S., Davies, L. J. M., Driver, S. P., Häußler, B., Holwerda, B., Hopkins, A., James, P. A., Liske, J., Percival, S., Taylor, E. N.
We explore constraints on the joint photometric and morphological evolution of typical low redshift galaxies as they move from the blue cloud through the green valley and onto the red sequence. We select GAMA survey galaxies with $10.25<{\rm log}(M_*
Externí odkaz:
http://arxiv.org/abs/1801.04277
Autor:
Kettlety, T., Hesling, J., Phillipps, S., Bremer, M. N., Cluver, M. E., Taylor, E. N., Bland-Hawthorn, J., Brough, S., De Propris, R., Driver, S. P., Holwerda, B. W., Kelvin, L. S., Sutherland, W., Wright, A. H.
Recent work has suggested that mid-IR wavelengths are optimal for estimating the mass-to-light ratios of stellar populations and hence the stellar masses of galaxies. We compare stellar masses deduced from spectral energy distribution (SED) models, f
Externí odkaz:
http://arxiv.org/abs/1709.08316
Autor:
De Propris, R.
We derive the galaxy luminosity function in the $K_s$ band for galaxies in 24 clusters to provide a local reference for higher redshift studies and to analyse how and if the luminosity function varies according to environment and cluster properties.
Externí odkaz:
http://arxiv.org/abs/1611.04911