Research of the 21 CM radiation at Agassiz Station.
نویسندگان
چکیده
منابع مشابه
The First Light seen in the redshifted 21–cm radiation
We show how the investigation of the redshifted 21–cm radiation can give insight into the development of structures in the early universe (at redshifts z > 5). In particular we investigate: the epoch of the first light; the fluctuations in the redshifted 21–cm emission induced by the density inhomogeneities in CDM dominated universes; the emission and absorption shells that are generated around...
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We present the statistical results of a systematic, unbiased search for subpulse modulation of 187 pulsars performed with the Westerbork Synthesis Radio Telescope (WSRT) in the Netherlands at an observing wavelength of 21 cm (Weltevrede et al. 2006a). We have increased the list of pulsars that show the drifting subpulse phenomenon by 42, indicating that more than 55% of the pulsars that show th...
متن کاملThe subpulse modulation properties of pulsars at 21 cm
We present the results of a systematic, unbiased search for subpulse modulation of 187 pulsars performed with the Westerbork Synthesis Radio Telescope (WSRT) in the Netherlands at an observing wavelength of 21 cm. Using new observations and archival WSRT data we have expanded the list of pulsars which show the drifting subpulse phenomenon by 42, indicating that at least one in three pulsars exh...
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We report multi-epoch GMRT HI observations of the z = 0.3127 damped absorber towards the quasar PKS 1127-145 , which reveal variability in both the absorption profile and the flux of the background source, over a timescale of a few days. The observed variations cannot be explained by simple inter-stellar scintillation (ISS) models where there are only one or two scintillating components and all...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 1954
ISSN: 0004-6256
DOI: 10.1086/107070