this is for holding javascript data
Refiloe edited subsection_Faint_Images_of_the__.tex
over 8 years ago
Commit id: 1b928d78e8465557372f017d125ed0449cd453fa
deletions | additions
diff --git a/subsection_Faint_Images_of_the__.tex b/subsection_Faint_Images_of_the__.tex
index 47ad319..972f08e 100644
--- a/subsection_Faint_Images_of_the__.tex
+++ b/subsection_Faint_Images_of_the__.tex
...
\subsection{Faint Images of the Radio Sky (FIRST)}
Figure 1. Histogram of peak flux densities for sources in the FIRST survey. (http://iopscience.iop.org/0004-637X/742/1/49/pdf/apj_742_1_49.pdf) The Faint Images of the Radio Sky at Twenty-cm (FIRST) is presently the most sensitive large-area
survey ($\gg {1^{\circ}}^2$)survey at radio wavelengths \cite{Becker_1995}.
FIRST covers approximately 10,575 degrees squared. It is a radio snapshot survey performed at the NRAO Very Large Array (VLA) facility. FIRST covers approximately
10 000° squared ${10 000^{\circ}}^2$ with a resolution of approximately 5
arc-seconds. arcseconds. Coverage is shown in
figure Figure 6 and
figure Figure 7. FIRST produces 3-minute snapshots covering a hexagonal grid of the sky, using
2×7 $2 \times 7$ 3-MHz frequency channels
centred centered at 1365 and 1435 MHz The survey catalogue contains around one million sources, and it is estimated that nearly
15% $15\%$ of these sources have optical counterparts. The FIRST survey area has been selected to correspond with that of the SDSS. (Sky Survey). FIRST provides a database that is uniform in angular resolution and flux density sensitivity and it offers the opportunity to produce the largest unbiased survey for statistical analysis. FIRST’s design enables the search for radio variability of sources on timescales of minutes to
years. (http://iopscience.iop.org/0004-637X/742/1/49/pdf/apj_742_1_49.pdf) years \cite{Thyagarajan_2011}
\subsubsection{Trade-off between area and depth in FIRST survey - this section is incomplete}