Understanding synthesis imaging dynamic range | Astronomy & Astrophysics (A&A)

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Table 2

Measured and assumed telescope parameters.

Telescope	N	d	B_Max	B_Med	η_F	ϵ_S	P	τ_P			ϵ_Q	ϵ_B	l_C
		(m)	(km)	(km)			(arcsec)	(min)		(min)			(m)

JVLA-D Config.	27	25	1.0	0.17	0.1	0.02	10	15			0.055	0.05	8.2
JVLA-C Config.	27	25	3.4	0.57	0.1	0.02	10	15			0.055	0.05	8.2
JVLA-B Config.	27	25	11.1	1.85	0.1	0.02	10	15			0.055	0.05	8.2
JVLA-A Config.	27	25	36.4	6.07	0.1	0.02	10	15			0.055	0.05	8.2
ATA	42	6.1	0.32	0.08	0.7	0.01	90	15			0.04	0.01	3.0
ASKAP	36	12	6.0	0.63	0.2/2^a	0.02/10^b	10	15	0.01	1	0.04/100^a^b	0.05/10^a	6.0
MeerKAT	64	13.5	8.0	0.50	0.2	0.01	10	15			0.04	0.01	7.0
SKA1-Survey	96	15	20	1.0	0.2/2^a	0.01	10	15	0.01	1	0.04/10^a	0.01/10^a	7.0
SKA1-Dish	250	15	20 × 5^c	1.0	0.2	0.01	10	15			0.04	0.01	7.0

LOFAR HBA Core	48	30.8	3.5	0.25	0.5	0.1			0.01	1	0.01
LOFAR HBA Ext	64	30.8	121.	1.0	0.5	0.1			0.01	1	0.01
MWA	128	4.4	3.0	0.3	0.5	0.1			0.01	1	0.1
SKA1-Low Core	35	180	5.0	0.5	0.5	0.1			0.01	1	0.01
SKA1-Low Ext	50	180	100.	2.5	0.5	0.1			0.01	1	0.01

Notes.

^(a)

Phased array feeds provide improved aperture illumination and reduced beam modulation.

^(b)

A parallactic angle mount provides stationary near-in sidelobes and main beam.

^(c)

Analysis is presented for B_Max = 20 km, while the array is projected to extend to B_Max = 100 km.

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