Interstellar Scintillation Observations of 146 Extragalactic Radio Sources
نویسندگان
چکیده
منابع مشابه
Scintillation-induced Variability in Radio Absorption Spectra against Extragalactic Sources
Abstract. Spectral features absorbed against some radio quasars exhibit ∼ 50mJy variations, with the lines varying both relative to the continuum and, when several lines are present, even relative to one another. We point out that such variability can be expected as a consequence of refractive scintillation caused by the interstellar medium of our Galaxy. Scintillation can cause independent var...
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Gigahertz Peaked Spectrum (GPS) sources and Compact Symmetric Objects (CSO) are selected in very different ways, but have a significant overlap in properties. Ever since their discovery it has been speculated that they are young objects, but only recently, strong evidence has been provided indicating that GPS sources and CSOs are indeed the young counterparts of large, extended sources. They ar...
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Quasi-continuous observations of PSR B0329+54 over 20 days using the Nanshan 25-m telescope at 1540 MHz have been used to study the effects of refractive scintillation on the pulsar flux density and diffractive scintillation properties. Dynamic spectra were obtained from datasets of 90 min duration and diffractive parameters derived from a two-dimensional auto-correlation analysis. Secondary sp...
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ژورنال
عنوان ژورنال: The Astrophysical Journal Supplement Series
سال: 2006
ISSN: 0067-0049,1538-4365
DOI: 10.1086/504897