نتایج جستجو برای: 33 m
تعداد نتایج: 651861 فیلتر نتایج به سال:
We present a supervised machine learning classification of stellar populations in the Local Group spiral galaxy M\,33. The Probabilistic Random Forest (PRF) methodology, previously applied to NGC\,6822, utilises both near and far-IR features. It classifies sources into nine target classes: young objects (YSOs), oxygen- carbon-rich asymptotic giant branch stars, red super-giant active galactic n...
Recent surveys of the Local Group spiral Galaxies M 31 and M 33 with XMM-Newton yielded a large number of X-ray sources.
[This corrects the article DOI: 10.1371/journal.pone.0154234.].
In this paper we describe the approved DO Upgrade detector, and its physics capabilities. The DO Upgrade is under construction and will run during the next Fermilab collider running period in early 1999 (R un II). The upgrade is designed to work at the higher luminosities and shorter bunch spacings expected during this run. The major elements of the upgrade are: a new tracking system with a sil...
H2MoO4 and H2WO4 upon direct laser desorption produce small clusters in the gas phase, extending up to 4500 and 7200 Da, respectively. The clustering patterns are quite similar for the two systems. The mass difference between successive peaks differ with increasing mass number as different kinds of structures become possible. A distinct planar to three-dimensional structural cross over is obser...
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