56 research outputs found
Chaco Chachalaca (Ortalis canicollis, Wagler, 1830) feeding ecology in a gallery forest in the South Pantanal (Brazil)
Space Telescope and Optical Reverberation Mapping Project. IX. VelocityâDelay Maps for Broad Emission Lines in NGC 5548
In this contribution, we achieve the primary goal of the active galactic nucleus (AGN) STORM campaign by recovering velocityâdelay maps for the prominent broad emission lines (Lyα, C iv, He ii, and HÎČ) in the spectrum of NGC 5548. These are the most detailed velocityâdelay maps ever obtained for an AGN, providing unprecedented information on the geometry, ionization structure, and kinematics of the broad-line region. Virial envelopes enclosing the emission-line responses show that the reverberating gas is bound to the black hole. A stratified ionization structure is evident. The He ii response inside 5â10 lt-day has a broad single-peaked velocity profile. The Lyα, C iv, and HÎČ responses extend from inside 2 to outside 20 lt-day, with double peaks at ±2500 km sâ1 in the 10â20 lt-day delay range. An incomplete ellipse in the velocityâdelay plane is evident in HÎČ. We interpret the maps in terms of a Keplerian disk with a well-defined outer rim at R = 20 lt-day. The far-side response is weaker than that from the near side. The line-center delay days gives the inclination i â 45°. The inferred black hole mass is MBH â 7 Ă 107 Mâ. In addition to reverberations, the fit residuals confirm that emission-line fluxes are depressed during the "BLR Holiday" identified in previous work. Moreover, a helical "Barber-Pole" pattern, with stripes moving from red to blue across the C iv and Lyα line profiles, suggests azimuthal structure rotating with a 2 yr period that may represent precession or orbital motion of inner-disk structures casting shadows on the emission-line region farther out
GWAS and colocalization analyses implicate carotid intima-media thickness and carotid plaque loci in cardiovascular outcomes
Carotid artery intima media thickness (cIMT) and carotid plaque are measures of subclinical atherosclerosis associated with ischemic stroke and coronary heart disease (CHD). Here, we undertake meta-analyses of genome-wide association studies (GWAS) in 71,128 individuals for cIMT, and 48,434 individuals for carotid plaque traits. We identify eight novel susceptibility loci for cIMT, one independent association at the previously-identified PINX1 locus, and one novel locus for carotid plaque. Colocalization analysis with nearby vascular expression quantitative loci (cis-eQTLs) derived from arterial wall and metabolic tissues obtained from patients with CHD identifies candidate genes at two potentially additional loci, ADAMTS9 and LOXL4. LD score regression reveals significant genetic correlations between cIMT and plaque traits, and both cIMT and plaque with CHD, any stroke subtype and ischemic stroke. Our study provides insights into genes and tissue-specific regulatory mechanisms linking atherosclerosis both to its functional genomic origins and its clinical consequences in humans
Where is the UKâs pollinator biodiversity? The importance of urban areas for flower-visiting insects
Effect of Different Levels of Copper and Molybdenum Supplements on Serum Lipid Profiles and Antioxidant Status in Cashmere Goats
Some Carleson measures for the HilbertâHardy space of tube domains over symmetric cones
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