منابع مشابه
A Deep, High-resolution Survey at 74 Mhz
We present a 74 MHz survey of a 165 deg2 region located near the north Galactic pole. This survey has an unprecedented combination of both resolution (2500 FWHM) and sensitivity ( as low as 24 mJy beam 1). We detect 949 sources at the 5 level in this region, enough to begin exploring the nature of the 74 MHz source population. We present differential source counts, spectral index measurements, ...
متن کاملA Deep 150 MHz GMRT Survey in Eridanus
We present results of a 150 MHz survey of a field centered on ǫ Eridani, undertaken with the Giant Metrewave Radio Telescope (GMRT). The survey covers an area with a diameter of ∼ 2, has a spatial resolution of ∼ 30 and a noise level of σ = 3.1 mJy at the pointing centre. These observations provide a deeper and higher resolution view of the 150 MHz radio sky than the 7C survey (although the 7C ...
متن کاملA Survey for Transient Astronomical Radio Emission at 611 MHz
We have constructed and operated the Survey for Transient Astronomical Radio Emission (STARE) to detect transient astronomical radio emission at 611 MHz originating from the sky over the northeastern United States. The system is sensitive to transient events on timescales of 0.125 s to a few minutes, with a typical zenith flux density detection threshold of approximately 27 kJy. During 18 month...
متن کاملOptical Identification Strategies for the Molonglo Cluster Survey
We describe a newly refined procedure for making optical identifications of radio sources in Abell cluster fields observed with the Molonglo Observatory Synthesis Telescope (MOST). The method is based on past experience but uses a range of new tools to improve the reliability and production rate of identification lists. The COSMOS/UKST Southern Sky Object Catalogue was used to make preliminary ...
متن کاملThe Molonglo Southern 4 Jy Sample ( MS 4 ) . I . Definition
We have defined a complete sample of 228 southern radio sources at 408 MHz with integrated flux densities S 408 > 4.0 Jy, Galactic latitude |b| > 10 • and dec-lination −85 • < δ < −30 •. The main finding survey used was the Molonglo Reference Catalogue. We describe in detail how the Molonglo Southern 4 Jy sample (MS4) was assembled and its completeness assessed. Sources in the sample were image...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1987
ISSN: 0074-1809
DOI: 10.1017/s007418090015956x