Powerful sources bring opportunities
نویسندگان
چکیده
منابع مشابه
The spectral structure and energetics of powerful radio sources
Determining the energy spectrum of an electron population can give key insights into the underlying physics of a radio source; however, the lack of high resolution, broad-bandwidth observations has left many ambiguities in our understanding of radio galaxies. The improved capabilities of telescopes such as the JVLA and LOFAR mean that within the bandwidth of any given observation, a detailed sp...
متن کاملThe properties of powerful radio sources at 90 GHz
We have observed a small sample of powerful double radio sources (radio galaxies and quasars) at frequencies around 90 GHz with the BIMA millimetre array, with the intention of constraining the resolved high-frequency spectra of radio galaxies. When combined with other sources we have previously observed and with data from the BIMA archive, these observations allow us for the first time to make...
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We have obtained near-infrared spectroscopy of a small sample of powerful Compact Steep-Spectrum (CSS) radio sources mainly, but not exclusively, from the 3CR sample. We find no differences between the distributions in the equivalent width and luminosity of the [Oiii]5007 line for our sample and other larger, presumably older, high-redshift 3C objects, suggesting that the underlying quasar lumi...
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Diesel particulate filters (DPF) are an effective means for meeting increasingly stringent emissions regulations that limit particulate matter. Over time, ash primarily derived from metallic additives in the engine oil accumulates in DPFs. Lubricant-derived ash increases pressure drop and reduces fuel economy. After long time periods, the accumulation of ash may lead to irreversible plugging in...
متن کاملBring in the SNAREs
The Golgi's central COG ngar et al. report on page 405 that three separately studied Golgi protein complexes are one and the same. The mammalian version of the complex has been named the conserved oligomeric Golgi (COG) complex. COG is octameric, and five of its eight subunits have homologues in the octameric Sec34/35 complex from budding yeast, which was recently U Normal Golgi structure (left...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2006
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(05)71343-2