نتایج جستجو برای: infrec r500
تعداد نتایج: 94 فیلتر نتایج به سال:
We study the baryon mass fraction in a set of hydrodynamical simulations of galaxy clusters performed using the Tree+SPH code GADGET-2. We investigate the dependence of the baryon fraction upon the radiative cooling, star formation, feedback through galactic winds, conduction and redshift. Both the cold stellar component and the hot X-ray emitting gas have narrow distributions that, at large cl...
The mapping and functional analysis of quantitative traits in Brassica rapa can be greatly improved with the availability of physically positioned, gene-based genetic markers and accurate genome annotation. In this study, deep transcriptome RNA sequencing (RNA-Seq) of Brassica rapa was undertaken with two objectives: SNP detection and improved transcriptome annotation. We performed SNP detectio...
We investigate the galaxy populations in seven X-ray selected, intermediateredshift groups (0.2 < z < 0.6). Overall, the galaxy populations in these systems are similar to those in clusters at the same redshift; they have large fractions of early-type galaxies (fe ∼ 70%) and small fractions of galaxies with significant star formation (f[OII] ∼ 30%). We do not observe a strong evolution in the g...
The structural failure of round and egg-shaped sewer pipes is investigated by means laboratory experiments finite element method analyses. Two different are considered, which have an inner diameter 400 mm 500 mm, respectively referred to as R400 R500 pipes. pipe considered in this study has a horizontal vertical 600 labeled the E400/600 pipe. Sewer with these dimensions most commonly used Nethe...
We investigate if the discrepancy between estimates of the total baryon mass fraction obtained from observations of the cosmic microwave background (CMB) and of galaxy groups/clusters persists when a large sample of groups is considered. To this purpose, 91 candidate X-ray groups/poor clusters at redshift 0.1 ≤ z ≤ 1 are selected from the COSMOS 2 deg survey, based only on their X–ray luminosit...
Using K-band imaging for 15 of the Canadian Network for Observational Cosmology (CNOC1) clusters we examine the near-infrared properties of moderate-redshift (0.19 < z < 0.55) galaxy clusters. We find that the number of K-band selected cluster galaxies within R500 (the Halo Occupation Number, HON) is well-correlated with the the cluster dynamical mass (M500) and X-ray Temperature (Tx); however,...
We investigate the galaxy populations in seven X-ray selected, intermediateredshift groups (0.2 < z < 0.6). Overall, the galaxy populations in these systems are similar to those in clusters at the same redshift; they have large fractions of early-type galaxies (fe ∼ 70%) and small fractions of galaxies with significant star formation (f[OII] ∼ 30%). We do not observe a strong evolution in the g...
We investigate the history of galactic feedback and chemical enrichment within a sample of 15 X-ray bright groups of galaxies, on the basis of the inferred Fe and Si distributions in the hot gas and the associated metal masses produced by core-collapse and type Ia supernovae (SN). Most of these cool-core groups show a central Fe and Si excess, which can be explained by prolonged enrichment by S...
چکیده مقدمه: دمای بدن انسان میتواند شاخصی طبیعی برای تشخیص برخی از بیماریها باشد. تصویر برداری حرارتی (ترموگرافی) با استفاده از روش مادون قرمز شیوهای سریع، غیرتهاجمی، بدون تماس و انعطافپذیر برای نظارت بر درجه حرارت بدن انسان میباشد. هدف مطالعه حاضر تعیین ارزش تشخیصی تصویربرداری حرارتی در شناسایی برخی از بیماریهای بافت پستان میباشد. روش بررسی: نوع مطالعه به صورت بررسی مقطعی میباشد، که ب...
Using the South Pole Telescope (SPT), we have discovered the most massive known galaxy cluster at z > 1, SPT-CL J2106-5844. In addition to producing a strong Sunyaev–Zel’dovich (SZ) effect signal, this system is a luminous X-ray source and its numerous constituent galaxies display spatial and color clustering, all indicating the presence of a massive galaxy cluster. Very Large Telescope and Mag...
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