Nonradial and radial period changes in the δ Scuti star 4 CVn - I. 700+ nights of photometry

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Table 2

Multifrequency solution of 4 CVn.

Frequency			ID	Average amplitudes		Frequency			ID	Average amplitudes
				v filter	y filter					v filter	y filter
	cd^-1	μHz		millimag	millimag		cd^-1	μHz		millimag	millimag

f₁	8.594	99.47		25.4	17.3	f₃₃	1.928	22.32	f₆–f₂	1.0	0.6
f₂	5.048	58.43		25.7	16.7	f₃₄	2.745	31.77	f₁–f₃	1.0	0.7
f₃	5.850	67.71		18.6	12.8	f₃₅	12.025	139.17	f₂+f₆	1.0	0.6
f₄	5.532	64.02		14.9	9.9	f₃₆	1.185	13.72	f₅–f₁₀	1.1	0.5
f₅	7.376	85.37		10.9	7.2	f₃₇	1.069	12.37	f₉–f₂	1.0	0.6
f₆	6.976	80.75		9.9	6.4	f₃₈	15.970	184.84	f₁+f₅	0.8	0.8
f₇	7.552	87.40		8.8	6.0	f₃₉	10.580	122.45	f₂+f₄	1.0	0.6
f₈	6.680	77.32		8.6	5.9	f₄₀	10.898	126.13	f₂+f₃	0.9	0.6
f₉	6.117	70.80		8.8	5.7	f₄₁	10.281	118.99	f₄+f₁₂	0.9	0.6
f₁₀	6.191	71.65		7.1	4.5	f₄₂	1.618	18.72	f₁-f₆	0.9	0.5
f₁₁	6.440	74.54		6.8	4.5	f₄₃	16.032	185.55	f₅+f₂₅	0.8	0.6
f₁₂	4.749	54.97		6.8	4.4	f₄₄	13.343	154.44	f₁+f₁₂	0.8	0.5
f₁₃	5.136	59.45		2.1	1.3	f₄₅	14.711	170.27	f₁+f₉	0.8	0.5
f₁₄	6.905	79.92		1.7	1.1	f₄₆	12.600	145.83	f₂+f₇	0.8	0.5
f₁₅	6.403	74.11		1.7	1.0	f₄₇	10.096	116.85	2f₂	0.7	0.5
f₁₆	6.749	78.12		1.4	1.0	f₄₈	15.274	176.79	f₁+f₈	0.7	0.5
f₁₇	5.314	61.51		1.5	0.9	f₄₉	11.723	135.68	f₄+f₁₀	0.7	0.5
f₁₈	6.108	70.69		1.4	0.9	f₅₀	11.649	134.82	f₄+f₉	0.7	0.5
f₁₉	4.499	52.07		1.4	0.8	f₅₁	15.571	180.22	f₁+f₆	0.7	0.5
f₂₀	7.873	91.12		1.1	0.7	f₅₂	13.779	159.48	f₅+f₁₅	0.7	0.4
f₂₁	4.712	54.53		1.1	0.7	f₅₃	1.368	15.83	f₉-f₁₂	0.7	0.4
f₂₂	5.184	60.01		1.1	0.6	f₅₄	10.922	126.42	f₁–f₂+f₅	0.6	0.4
f₂₃	5.572	64.49		0.9	0.6	f₅₅	14.353	166.12	f₆+f₅	0.6	0.4
f₂₄	0.468	5.41		1.0	0.5	f₅₆	15.249	176.49	f₅+f₂₀	0.5	0.4
f₂₅	8.655	100.18		0.7	0.5	f₅₇	0.400	4.63	f₅–f₆	0.6	0.3
f₂₆	1.699	19.66		0.6	0.4	f₅₈	13.953	161.49	2f₆	0.5	0.4
Combinations and harmonics						f₅₉	16.146	186.87	f₁+f₇	0.4	0.2
f₂₇	13.642	157.90	f₁+f₂	1.7	1.1	f₆₀	17.188	198.94	2f₁	0.3	0.2
f₂₈	2.328	26.95	f₅-f₂	1.6	0.9	f₆₁	22.947	265.59	f₁+f₆+f₅	0.3	0.2
f₂₉	13.226	153.08	f₃+f₅	1.1	0.7	f₆₂	23.522	272.25	f₁+f₅+f₇	0.2	0.2
f₃₀	1.143	13.23	f₁₀–f₂	1.0	0.7	f₆₃	24.565	284.31	2f₁+f₅	0.2	0.2
f₃₁	1.632	18.89	f₈–f₂	1.1	0.7	f₆₄	20.619	238.64	f₁+f₂+f₆	0.2	0.1
f₃₂	11.451	132.54	f₂+f₁₅	1.1	0.7

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