The content of active galactic nuclei in the z = 0.83 cluster MS 1054--0321
نویسندگان
چکیده
منابع مشابه
Observatory Observation of the High - Redshift Cluster MS 1054 − 0321
We observed MS 1054−0321, the highest redshift cluster of galaxies in the Einstein Medium Sensitivity Survey (EMSS), with the Chandra ACIS-S detector. We find the X-ray temperature of the cluster to be 10.4 −1.5 keV, lower than, but statistically consistent with, the temperature inferred previously. This temperature agrees well with the observed velocity dispersion and that found from weak lens...
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Using one of the deepest datasets available, we determine that the red sequence of the massive cluster MS1054-0321 at z = 0.831 is well populated at all studied magnitudes, showing no deficit of faint (down to M∗+3.5) red galaxies: the faint end of the colour– magnitude relation is neither empty nor underpopulated. The effect is quantified by the computation of the luminosity function (LF) of r...
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در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است
15 صفحه اولμ Jy radio sources in the z = 0 . 83 cluster MS 1054 − 03
An extremely deep 5GHz radio observation is presented of the rich cluster MS1054−03 at redshift z = 0.83. 34 radio sources are detected down to a 6σ level of 32μJy, compared to about 25 expected from previous blank field radio source count determinations; the sources giving rise to these excess counts lie predominantly within 2 arcmins (∼ 700 kpc) of the cluster centre. Existing imaging and spe...
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We use Chandra X-ray and Spitzer infrared (IR) observations to explore the active galactic nucleus (AGN) and starburst populations of XMMXCS J2215.9−1738 at z = 1.46, one of the most distant spectroscopically confirmed galaxy clusters known. The high-resolution X-ray imaging reveals that the cluster emission is contaminated by point sources that were not resolved in XMM-Newton observations of t...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2003
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.2003.06737.x