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Table 4

The chromospheric activity measurements and magnetic field measurements of HN Peg for seven epochs (2007.67, 2008.71, 2009.54, 2010.62, 2011.67, 2012.61 and 2013.68).

Julian date Rot. phase S-index Hα-index CaIRT-index B l N l
(2 454 000+) (G) (G)
309.595010 0.000000 0.3092±0.0032 0.3234±0.0008 0.9297±0.0044 1.8±0.5 –0.4±0.5
310.602470 0.219490 0.3158±0.0044 0.3276±0.0011 0.9384±0.0062 –1.6±0.7 0.8±0.7
311.560380 0.428185 0.3088±0.0048 0.3263±0.0012 0.9301±0.0067 12.7±0.8 0.0±0.8
312.547230 0.643185 0.3106±0.0045 0.3262±0.0012 0.9312±0.0065 5.1±0.7 –1.1±0.7
313.548380 0.861301 0.3099±0.0065 0.3248±0.0015 0.9286±0.0083 3.6±1.5 0.7±1.5
315.554720 0.298412 0.3162±0.0052 0.3273±0.0012 0.9341±0.0068 1.6±1.9 0.7±1.9
316.551130 0.515495 0.3104±0.0051 0.3255±0.0012 0.9287±0.0067 11.1±0.8 0.0±0.8
317.552700 0.733702 0.3086±.0063 0.3248±0.0015 0.9237±0.0084 7.4±1.3 –0.5±1.3
321.525450 0.599224 0.3082±0.0056 0.3254±0.0013 0.9287±0.0072 7.9±0.8 0.7±0.8
322.545370 0.821429 0.3045±0.0086 0.3263±0.0020 0.9241±0.0112 4.7±1.3 0.9±1.3
323.545440 0.039309 0.3097±0.0072 0.3282±0.0016 0.9284±0.0088 2.6±1.1 –0.4±1.1
327.534930 0.908479 0.4618±0.1629 0.3402±0.0118 0.9293±0.0633 3.8±0.9 1.2±0.9
330.524710 0.559847 0.3102±0.0062 0.3252±0.0014 0.9293±0.0075 12.2±0.8 0.5±0.8
331.481500 0.768298 0.3112±0.0051 0.3252±0.0012 0.9230±0.0067 1.8±1.2 0.7±1.2
689.532480 0.775048 0.3076±0.0048 0.3259±0.0012 0.9220±0.0065 –2.4±0.8 –0.7±0.8
691.512640 0.206455 0.3508±0.0689 0.3271±0.0073 0.7714±0.0437 –2.6±0.8 1.0±0.8
696.541340 0.302033 0.3080±0.0053 0.3216±0.0012 0.9110±0.0068 2.3±1.1 0.6±1.1
698.608480 0.752390 0.3285±0.0051 0.3269±0.0012 0.9254±0.0065 6.0±0.9 –1.0±0.9
699.569970 0.961865 0.3299±0.0085 0.3265±0.0017 0.9228±0.0092 7.0±0.8 –0.8±0.8
700.499080 0.164285 0.3145±0.0062 0.3244±0.0013 0.9129±0.0067 4.1±4.7 1.8±1.2
700.519240 0.168678 0.3075±0.0051 0.3233±0.0012 0.9069±0.0064 8.4±1.2 –5.3±4.7
701.454560 0.372451 0.3122±0.0692 0.3225±0.0015 0.9249±0.0084 –3.7±3.6 4.5±3.6
702.529090 0.606553 0.3041±0.0163 0.3230±0.0030 0.9304±0.0165 –1.3±1.1 –0.2±1.1
703.500480 0.818185 0.3233±0.0098 0.3275±0.0021 0.9201±0.0117 3.1±0.6 –0.4±0.6
704.553140 0.047523 0.3213±0.0043 0.3243±0.0010 0.9109±0.0056 3.7±0.7 0.9±0.7
984.634100 0.067340 0.3144±0.0042 0.3231±0.0010 0.9077±0.0056 5.3±0.9 0.1±0.9
985.633550 0.285085 0.3075±0.0043 0.3230±0.0011 0.9016±0.0058 1.7±0.8 0.3±0.8
986.630640 0.502316 0.3228±0.0063 0.3306±0.0013 0.9189±0.0070 5.1±1.6 2.6±1.6
995.615700 0.459845 0.3155±0.0056 0.3290±0.0012 0.9158±0.0065 8.5±4.4 –10.9±4.5
1001.610390 0.765878 0.3303±0.0059 0.3255±0.0012 0.9230±0.0066 –14.0±7.8 –17.7±7.8
1002.632590 0.988580 0.3036±0.0206 0.3245±0.0031 0.9098±0.0158 7.9±2.5 –0.7±2.5
1005.639920 0.643771 0.3107±0.0202 0.3250±0.0033 0.9318±0.0175 3.5±2.0 2.6±2.0
1006.610200 0.855161 0.3209±0.0180 0.3259±0.0029 0.9319±0.0154 5.9±1.0 –0.1±1.0
1010.568540 0.717545 0.3326±0.0080 0.3260±0.0013 0.9327±0.0072 –2.0±2.1 –1.5±2.1
1013.598260 0.377614 0.3338±0.0084 0.3271±0.0015 0.9259±0.0080 –4.5±1.8 –0.0±1.8
1018.658940 0.480159 0.3381±0.0072 0.3252±0.0014 0.9332±0.0072 3.1±1.7 –3.5±1.7
1369.590720 0.935885 0.3212±0.0074 0.3230±0.0013 0.9292±0.0068 13.9±0.9 0.3±0.9
1382.615660 0.773562 0.3193±0.0081 0.3251±0.0019 0.9147±0.0096 7.3±0.7 –0.7±0.7
1384.584890 0.202588 0.3577±0.0073 0.3291±0.0013 0.9423±0.0069 4.7±0.7 –0.7±0.7
1385.533000 0.409148 0.3323±0.0051 0.3255±0.0011 0.9265±0.0061 6.1±0.7 0.5±0.7
1388.555690 0.067686 0.3493±0.0057 0.3284±0.0011 0.9325±0.0062 9.5±1.0 –0.8±1.0
1390.561220 0.504621 0.3474±0.0056 0.3264±0.0011 0.9293±0.0062 3.2±1.1 0.9±1.1
1391.543670 0.718662 0.3446±0.0067 0.3256±0.0013 0.9293±0.0068 4.7±2.8 –0.8±2.8
1392.566500 0.941501 0.3370±0.0090 0.3262±0.0016 0.9263±0.0080 –4.6±1.0 2.1±1.0
1396.485880 0.795397 0.3290±0.0100 0.3244±0.0018 0.9133±0.0096 4.4±0.9 1.0±0.9
1401.561040 0.901096 0.3358±0.0061 0.3248±0.0013 0.9214±0.0068 10.0±0.7 1.1±0.7
1411.510430 0.068719 0.3314±0.0062 0.3264±0.0011 0.9156±0.0062 8.4±1.0 –0.3±1.0
1416.561860 0.169248 0.3302±0.0052 0.3262±0.0011 0.9155±0.0059 5.5±0.8 0.8±0.8
1429.547050 0.998266 0.3474±0.0072 0.3289±0.0013 0.9177±0.0069 8.1±1.5 0.1±1.5
1754.590060 0.813736 0.3520±0.0068 0.3287±0.0012 0.9170±0.0064 –2.3±1.1 –0.4±1.1
1764.613990 0.997599 0.3397±0.0135 0.3264±0.0017 0.9093±0.0095 –2.4±0.9 –0.1±0.9
1765.579850 0.208026 0.3392±0.0075 0.3281±0.0016 0.9445±0.0088 6.1±0.8 0.5±0.8
1782.512460 0.897048 0.3445±0.0040 0.3286±0.0012 0.9421±0.0068 –6.4±1.9 0.1±1.9
1784.515440 0.333427 0.3398±0.0048 0.3285±0.0012 0.9415±0.0068 4.3±2.1 1.4±2.1
1785.571320 0.563466 0.3475±0.0056 0.3289±0.0014 0.9458±0.0079 12.8±0.8 –1.0±0.8
1789.590600 0.439126 0.3292±0.0072 0.3278±0.0014 0.9324±0.0078 3.7±1.1 –0.3±1.1
1790.530870 0.643978 0.3674±0.0056 0.3344±0.0013 0.9572±0.0073 6.1±0.9 0.1±0.9
1791.472450 0.849115 0.3313±0.0070 0.3277±0.0014 0.9453±0.0076 – –
1792.535280 0.080669 0.3808±0.0084 0.3328±0.0013 0.9579±0.0073 – –
2100.610620 0.199479 0.3737±0.0071 0.3319±0.0014 0.9606±0.0075 – –
2101.635920 0.422856 0.3344±0.0096 0.3253±0.0018 0.9335±0.0110 – –
2102.612400 0.635597 0.3560±0.0069 0.3281±0.0015 0.9344±0.0082 – –
2103.529510 0.835403 0.3419±0.0054 0.3260±0.0013 0.9280±0.0074 – –
2118.614210 0.121830 0.3514±0.0057 0.3265±0.0014 0.9339±0.0081 – –
2124.664630 0.440004 0.3407±0.0082 0.3278±0.0017 0.9361±0.0092 – –
2125.639690 0.652436 0.3459±0.0051 0.3293±0.0015 0.9290±0.0085 – –
2126.631180 0.868447 0.3374±0.0062 0.3273±0.0012 0.9252±0.0069 – –
2127.593570 0.078118 0.3511±0.0049 0.3288±0.0012 0.9401±0.0067 – –
2128.578110 0.292614 0.3490±0.0058 0.3300±0.0012 0.9457±0.0069 – –
2131.572610 0.945011 0.3451±0.0044 0.3273±0.0012 0.9412±0.0070 – –
2132.561810 0.160523 0.3361±0.0061 0.3270±0.0013 0.9302±0.0072 – –
2133.592020 0.384969 0.3523±0.0055 0.3290±0.0012 0.9444±0.0072 – –
2146.566500 0.211654 0.3467±0.0059 0.3298±0.0013 0.9401±0.0075 – –
2147.537680 0.423240 0.3357±0.0055 0.3283±0.0013 0.9288±0.0076 – –
2482.556520 0.412094 0.3507±0.0064 0.3285±0.0011 0.9437±0.0063 2.8±0.8 –0.2±0.8
2485.512210 0.056035 0.3385±0.0083 0.3261±0.0014 0.9330±0.0076 12.7±1.1 –2.4±1.1
2507.629120 0.874534 0.3404±0.0054 0.3272±0.0012 0.9341±0.0066 4.1±2.5 –3.3±2.5
2509.533370 0.289403 0.3384±0.0068 0.3263±0.0016 0.9330±0.0090 6.2±0.8 0.5±0.8
2510.636070 0.529643 0.3367±0.0070 0.3249±0.0015 0.9287±0.0083 6.1±0.9 0.3±0.9
2513.550070 0.164501 0.3520±0.0064 0.3293±0.0012 0.9430±0.0068 10.3±1.0 0.3±1.0
2514.559260 0.384368 0.3520±0.0080 0.3288±0.0014 0.9452±0.0078 5.4±0.8 0.6±0.8
2515.562810 0.603007 0.3414±0.0079 0.3278±0.0014 0.9384±0.0079 4.8±0.8 0.3±0.8
2516.582590 0.825181 0.3515±0.0062 0.3278±0.0012 0.9422±0.0069 3.4±0.8 –0.1±0.8
2518.601950 0.265129 0.3535±0.0052 0.3275±0.0012 0.9367±0.0067 8.4±0.8 0.2±0.8
2520.501260 0.678922 0.3498±0.0060 0.3280±0.0012 0.9407±0.0066 2.8±0.8 0.2±0.8
2523.532240 0.339266 0.3505±0.0058 0.3293±0.0012 0.9390±0.0065 5.0±0.8 –0.6±0.8
2524.518410 0.554118 0.3548±0.0056 0.3288±0.0012 0.9402±0.0067 7.7±0.9 –0.7±0.9
2525.463280 0.759972 0.3547±0.0073 0.3282±0.0012 0.9402±0.0068 1.8±0.8 –0.0±0.8
2526.533220 0.993074 0.3545±0.0065 0.3281±0.0012 0.9412±0.0065 5.9±0.8 –0.2±0.8

Notes. From left to right it represents: Julian date, rotational phase, S-index, Hα-index, CaIRT-index, longitudinal magnetic field (Bl) and magnetic field of the Null profile (Nl). The longitudinal magnetic field measurements are not included for 2012.61 and parts of 2011.67 epochs due to spectropolarimetric errors at NARVAL. See Sect. 3 for details.

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