Multifrequency study of three giant radio galaxies with recurrent jet-formation activity: J1021+1216, J1528+0544, and J2345−0449 - I. Radio observations

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Volume 704 (December 2025)

A&A, 704 (2025) A284

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Table A.1.

Basic information about the observational projects used in this study.

Object	Frequency	Bandwidth	Project	Instrument	Obs. date	Time on
	[MHz]	[MHz]			[dd mm yyyy]	source [min]
(1)	(2)	(3)	(4)	(5)	(6)	(7)
J1021+1216	323	33	25_065	GMRT	11 01 2014	264
	610	33	25_065	GMRT	05 01 2014	374
	3000	2000	23B-010	VLA-D^a	23 10 2023	9 ^(b)
	6000	4000	23B-010	VLA-D^a	06 11 2023/	19^c
					10 11 2023
	10000	4000	23B-010	VLA-D^a	23 10 2023	24^c
J1528+0544	400	200	44_008	uGMRT	05 05 2023/	180
					16 07 2023
	750	400	44_008	uGMRT	18 05 2023/	352
					18 07 2023
	3000	2000	23B-010	VLA-D^a	20 11 2023	5 ^(b)
	6000	4000	23B-010	VLA-D^a	24 10 2023/	23^c
					30 10 2023
	6000	4000	24A-002	VLA-B^a	11 05 2024	5
	22000	8000	24A-002	VLA-C^a	26 01 2024	25
J2345–0449	148	16	29_062	GMRT	28 11 2015	330
	323	33	29_061	GMRT	05 11 2015	350
	325	32	15JMA01	GMRT	24 11 2008	345
	610	33	29_061	GMRT	06 11 2015	294
	614	30	15JMA01	GMRT	04 12 2008	709
	1500	1000	23A-201	VLA-B^a	14 01 2023	58
	4860	100	AM954	VLA-D^a	27 06 2008	160^c
	5500	2000	23A-201	VLA-B^a	14 01 2023	50

Notes.

^(a)

VLA-B, VLA-C, and VLA-D refer to B, C, and D array configurations of the VLA.

^(b)

Combined on-source time across two pointings.

^(c)

Combined on-source time across three pointings. Column designation: (1) name of the object used throughout this study, (2) central frequency of the observing band, (3) total width of the observing band, (4) designation of the observational project, (5) name of the interferometer used for the observations, (6) observation date; in some cases the observations were split into several sessions on different days, (7) the total time the instrument spent pointed at the target object; in some cases the time is combined from several pointings.

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