The contribution of discrete sources to the sky temperature at 144 MHz

Free Access

Table 1

Fields used in the analysis.

Name	Number of sources	Area	RMS noise^(a)
	in area used	(deg²)	(μJy beam⁻¹)
DR2 13h	1 913 117	1970.0	62
Boötes	9167	3.216	39
ELAIS-N1	15 166	2.886	21
Lockman	12 268	3.042	26

Notes. ^(a) RMS noise tabulated is the median island rms reported by PyBDSF for the catalogue actually used for the analysis, and so differs from the noise levels quoted in the text because it depends on the regions of sky used and because it is biased towards low-noise regions.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.