Forming an X-ray Analysis Society

X-ray emission from star-forming galaxies

analysis of power in the network society

اندیشمندان و صاحب نظران علوم اجتماعی بر این باورند که مرحله تازه ای در تاریخ جوامع بشری اغاز شده است. ویژگیهای این جامعه نو را می توان پدیده هایی از جمله اقتصاد اطلاعاتی جهانی ، هندسه متغیر شبکه ای، فرهنگ مجاز واقعی ، توسعه حیرت انگیز فناوری های دیجیتال، خدمات پیوسته و نیز فشردگی زمان و مکان برشمرد. از سوی دیگر قدرت به عنوان موضوع اصلی علم سیاست جایگاه مهمی در روابط انسانی دارد، قدرت و بازتولید...

Ultraluminous X-ray Source Correlations with Star-forming Regions

Maps of low-inclination nearby galaxies in Sloan Digitized Sky Survey u − g, g − r and r − i colors are used to determine whether Ultraluminous X-ray sources (ULXs) are predominantly associated with star-forming regions of their host galaxies. An empirical selection criterion is derived from colors of H ii regions in M81 and M101 that differentiates between the young, blue stellar component and...

Linking the X-ray and infrared properties of star-forming

We present the most complete study to date of the X-ray emission from star formation in high-redshift (median z= 0.7; z < 1.5), IR-luminous (LIR = 10 –10 L⊙) galaxies detected by Herschel’s PACS and SPIRE instruments. For our purpose, we take advantage of the deepest X-ray data to date, the Chandra Deep Fields (North and South). Sources which host AGN are removed from our analysis by means of m...

A Filamentary Structure of Massive Star-forming Galaxies Associated with an X-ray–absorbed Qso

The genesis of spheroids is central to our understanding of galaxy formation: they are relatively simple systems, containing about half the stellar mass of the universe. A major subset of spheroids, massive elliptical galaxies, are preferentially found in clusters where they exhibit old coeval stellar populations suggesting that they formed synchronously at early epochs. Here we report Submilli...