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Ultraviolet Fe ii emission in fainter quasars: luminosity dependences, and the influence of environments
(Oxford Univ. Press, 2016)
We investigate the strength of ultraviolet Fe ii emission in fainter quasars compared with brighter quasars for 1.0 a parts per thousand currency sign z a parts per thousand currency sign 1.8, using the Sloan Digital Sky ...
Blue straggler stars in Galactic open clusters and the effect of field star contamination
(EDP Sciences, 2008-12)
Context: We investigate the distribution of blue straggler stars in the field of three open star clusters. Aims: The main purpose is to highlight the crucial role played by general Galactic disk fore-/back-ground field ...
Open cluster survival within the solar circle: Teutsch 145 and Teutsch 146 star
(WILEY-BLACKWELL PUBLISHING, INC, 2010)
Teutsch 145 and Teutsch 146 are shown to be open clusters (OCs) orbiting well inside the solar circle, a region where several dynamical processes combine to disrupt most OCs on a time-scale of a few 108 yr. BVI photometry ...
The mass and galaxy distribution around SZ-selected clusters
(2021-11-01)
We present measurements of the radial profiles of the mass and galaxy number density around Sunyaev–Zel’dovich (SZ)-selected clusters using both weak lensing and galaxy counts. The clusters are selected from the Atacama ...
The mass and galaxy distribution around SZ-selected clusters
(Oxford Univ Press, 2021-11-01)
We present measurements of the radial profiles of the mass and galaxy number density around Sunyaev-Zel'dovich (SZ)-selected clusters using both weak lensing and galaxy counts. The clusters are selected from the Atacama ...
Constraining H-0 in general dark energy models from Sunyaev-Zeldovich/X-ray technique and complementary probes
(IOP PUBLISHING LTDBRISTOL, 2012)
In accelerating dark energy models, the estimates of the Hubble constant, Ho, from Sunyaev-Zerdovich effect (SZE) and X-ray surface brightness of galaxy clusters may depend on the matter content (Omega(M)), the curvature ...
Galaxy triplets in Sloan Digital Sky Survey Data Release 7-I. Catalogue
(WILEY-BLACKWELLMALDEN, 2012)
We present a new catalogue of galaxy triplets derived from the Sloan Digital Sky Survey (SDSS) Data Release 7. The identification of systems was performed considering galaxies brighter than Mr=-20.5 and imposing constraints ...
Hydrodynamical simulations of Galactic fountains - II. Evolution of multiple fountains
(WILEY-BLACKWELL PUBLISHING, INC, 2009)
The ejection of gas out of the disc in late-type galaxies is related to star formation and is mainly due to the explosion of Type II supernovae (SN II). In a previous paper, we considered the evolution of a single Galactic ...
The spitzer-hetdex exploratory large-area survey
(IOP Publishing, 2016)
We present post-cryogenic Spitzer imaging at 3.6 and 4.5 mu m with the Infrared Array Camera (IRAC) of the Spitzer/HETDEX Exploratory Large-Area (SHELA) survey. SHELA covers approximate to 24 deg(2) of the Sloan Digital ...
Stellar populations in the Carina region The Galactic plane at l=291 degrees
(EDP Sciences, 2016-08)
Context. Previous studies of the Carina region have revealed its complexity and richness as well as a significant number of early-type stars. However, in many cases, these studies only concentrated on the central region ...