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Table 3:

Previously published, reanalysed, and new mid-eclipse times of the white dwarf in NN Ser with residuals for the light-travel-time effect produced by the two planets of Model 2a.

E
BJD(TT) Error Residual Error Residual References Comment
  JD 2 400 000+ (days) (days) (s) (s)    
0 47 344.5246635 0.0003500 0.0000290 30.00 2.51 (1) Reanalysed
2760 47 703.5457436 0.0000020 0.0000012 0.17 0.10 (2)  
2761 47 703.6758326 0.0000060 0.0000101 0.52 0.87 (2)  
2769 47 704.7164596 0.0000030 -0.0000038 0.26 -0.33 (3)  
2776 47 705.6270226 0.0000030 -0.0000016 0.26 -0.14 (3)  
2777 47 705.7571046 0.0000070 0.0000003 0.60 0.03 (3) Corrected
2831 47 712.7815836 0.0001500 0.0001534 12.96 13.25 (2)  
2839 47 713.8222336 0.0001500 0.0001625 12.96 14.04 (2)  
7360 48 301.9141954 0.0001500 -0.0000627 12.96 -5.42 (2)  
28 152 51 006.5405495 0.0002000 0.0000605 17.28 5.23 (2)  
30 721 51 340.7165402 0.0000023 -0.0000004 0.20 -0.03 (2) Reanalysed
33 233 51 667.4780058 0.0000960 0.0000041 8.29 0.35 (4) Reanalysed
38 960 52 412.4470566 0.0000006 -0.0000006 0.05 -0.05 (5)  
38 961 52 412.5771382 0.0000005 0.0000008 0.04 0.07 (5)  
38 968 52 413.4876977 0.0000009 -0.0000006 0.08 -0.05 (5) Corrected
38 976 52 414.5283389 0.0000007 -0.0000004 0.06 -0.03 (5)  
38 984 52 415.5689804 0.0000007 0.0000000 0.06 0.00 (5)  
41 782 52 779.5331703 0.0000015 0.0000001 0.13 0.01 (5)  
41 798 52 781.6144523 0.0000007 0.0000002 0.06 0.02 (5)  
41 806 52 782.6550927 0.0000008 -0.0000004 0.07 -0.03 (5)  
41 820 52 784.4762150 0.0000008 0.0000003 0.07 0.03 (5)  
44 472 53 129.4486808 0.0000040 0.0000008 0.35 0.07 (5)  
44 473 53 129.5787632 0.0000028 0.0000031 0.24 0.27 (5)  
44 474 53 129.7088370 0.0000017 -0.0000032 0.15 -0.28 (5)  
44 480 53 130.4893234 0.0000030 0.0000025 0.26 0.22 (5)  
49 662 53 804.5644567 0.0000025 0.0000001 0.22 0.01 (5)  
49 663 53 804.6945350 0.0000012 -0.0000017 0.10 -0.15 (5)  
49 671 53 805.7351781 0.0000006 0.0000005 0.05 0.04 (5)  
53 230 54 268.6903114 0.0000006 0.0000008 0.05 0.07 (5)  
53 237 54 269.6008713 0.0000002 -0.0000001 0.02 -0.01 (5)  
56 442 54 686.5076279 0.0000009 -0.0000001 0.08 -0.01 (5)  
58 638 54 972.1634971 0.0000800 -0.0000380 6.91 -3.28 (6)  
58 645 54 973.0740553 0.0001000 -0.0000406 8.64 -3.51 (6)  
58 684 54 978.1471791 0.0001200 -0.0000408 10.37 -3.53 (6)  
58 745 54 986.0820789 0.0001200 -0.0000274 10.37 -2.37 (6)  
58 753 54 987.1228359 0.0001300 0.0000887 11.23 7.66 (6)  
58 796 54 992.7161925 0.0000015 0.0000008 0.13 0.07 (6)  
60 489 55 212.9418187 0.0000069 0.0000027 0.60 0.23 (7,8)  
60 505 55 215.0230961 0.0000066 -0.0000017 0.57 -0.15 (7,8)  
60 528 55 218.0149380 0.0000043 -0.0000024 0.37 -0.21 (7,8)  
60 735 55 244.9415254 0.0000029 0.0000012 0.25 0.10 (7,8)  
60 743 55 245.9821654 0.0000032 0.0000003 0.28 0.03 (7,8)  
60 751 55 247.0228063 0.0000034 0.0000002 0.29 0.02 (7,8)  
60 774 55 250.0146469 0.0000034 -0.0000018 0.29 -0.16 (7,8)  
60 927 55 269.9169047 0.0000014 -0.0000018 0.12 -0.16 (7,9)  
60 950 55 272.9087487 0.0000013 -0.0000005 0.11 -0.04 (7,9)  
61 219 55 307.9003015 0.0000010 0.0000005 0.09 0.04 (7,10)  
61 426 55 334.8268834 0.0000018 -0.0000025 0.16 -0.22 (7,9)  
61 440 55 336.6480059 0.0000018 -0.0000017 0.16 -0.15 (7,9)  
61 441 55 336.7780894 0.0000015 0.0000017 0.13 0.15 (7,9)  
61 564 55 352.7779443 0.0000016 0.0000017 0.14 0.15 (7,9)  
61 579 55 354.7291448 0.0000009 0.0000004 0.08 0.03 (7,10)  

Notes. The published mid-eclipse times have been converted to BJD(TT) if not yet on this time standard.

References. (1) Haefner et al. (1989); ESO Msngr, 55, 61, reanalysed using up-to-date eclipse profile; (2) Haefner et al. (2004), misprint for E=2777corrected, VLT trailed imaging observation (E=30721) reanalysed using the original data; (3) Wood & Marsh (1991); (4) Pigulski & Michalska (2002), reanalysed using the original data; (5) Parsons et al. (2010b), timing for E=38 968 corrected for misprint; (6) Qian et al. (2009); (7) this work; (8) MONET/North 1.2-m white light photometry; (9) McDonald 2.1-m photometry with Schott BG40 filter; (10) ESO NTT 3.5-m ULTRACAM Sloan g' photometry.


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