# Microlensing optical depth and event rate toward the Galactic bulge # from eight years of OGLE-IV observations # # Table 7. Microlensing optical depth and event rates in the OGLE-IV # fields (averaged over sources brighter than I=21). # # Byte-to-byte description of file: # ------------------------------------------------------------------------- # Bytes Format Label Explanations # ------------------------------------------------------------------------- # 1- 6 S6 field OGLE-IV subfield name # 8- 15 F8.4 glon Galactic longitude (deg) # 17- 24 F8.4 glat Galactic latitude (deg) # 26- 29 F4.2 tau Optical depth (10^{-6}) # 31- 34 F4.2 tau_err Uncertainty of tau (10^{-6}) # 36- 39 F4.1 gam Event rate per star (10^{-6} per year) # 41- 44 F4.1 gam_err Uncertainty of gam (10^{-6} per year) # 46- 50 F5.1 gam_deg2 Event rate per unit area (per year per deg^2) # 52- 55 F4.1 gam_deg2_err Uncertainty of gam_deg2 (per year per deg^2) # 57- 60 F4.1 t_E_mean Mean Einstein timescale (d) # 62- 65 F4.1 t_E_mean_err Uncertainty of t_E_mean (d) # 67- 69 I3 N_events Number of events # 71- 75 F5.2 N_stars Number of sources (10^6) # ------------------------------------------------------------------------- BLG500 0.9999 -1.0293 1.93 0.21 23.9 2.0 168.8 13.7 18.8 1.6 164 6.78 BLG501 -0.0608 -1.6400 2.13 0.15 24.1 1.4 222.9 12.9 20.5 1.1 317 13.31 BLG502 -3.2832 -3.4735 1.22 0.12 11.0 0.9 69.7 5.5 25.7 1.8 171 10.02 BLG503 -4.3547 -4.0831 0.74 0.10 5.5 0.7 37.4 4.2 31.4 3.3 91 10.70 BLG504 2.1491 -1.7747 1.45 0.12 16.9 1.2 134.3 9.1 20.0 1.2 225 11.86 BLG505 1.0870 -2.3890 2.09 0.17 22.2 1.1 265.3 12.8 21.8 1.5 441 19.02 BLG506 0.0103 -2.9974 1.97 0.25 16.5 1.1 137.4 8.9 28.0 2.9 247 12.85 BLG507 -1.0641 -3.6101 1.21 0.10 12.3 0.9 87.3 6.1 22.9 1.4 216 11.22 BLG508 -2.1341 -4.2222 0.83 0.09 6.8 0.7 42.3 4.1 28.5 2.2 119 9.53 BLG509 -3.2058 -4.8329 0.73 0.10 4.6 0.5 28.5 3.5 36.6 4.2 79 9.82 BLG510 -4.2794 -5.4419 0.48 0.09 3.6 0.7 17.5 3.1 31.2 4.6 38 7.67 BLG511 3.2835 -2.5219 1.43 0.15 13.5 1.0 113.9 8.1 24.5 2.0 204 13.45 BLG512 2.2154 -3.1355 1.44 0.13 14.0 0.9 148.5 9.0 24.0 1.5 280 17.48 BLG513 1.1399 -3.7432 0.89 0.08 8.5 0.7 76.0 5.4 24.4 1.6 213 13.71 BLG514 0.0747 -4.3626 0.68 0.08 6.2 0.7 39.8 4.0 25.2 2.0 108 10.27 BLG515 -0.9993 -4.9741 0.74 0.11 5.7 0.8 29.6 3.8 30.5 4.3 80 8.10 BLG516 -2.0711 -5.5870 0.50 0.08 4.6 0.7 21.5 3.2 25.3 2.6 48 7.61 BLG517 -3.1453 -6.1976 0.36 0.11 2.6 0.9 9.7 3.2 32.6 8.6 12 5.96 BLG518 4.4046 -3.2761 0.94 0.10 7.3 0.5 56.7 4.6 30.0 2.3 160 12.34 BLG519 3.3316 -3.8823 1.04 0.10 9.3 0.7 77.8 5.4 25.9 1.7 223 12.93 BLG520 2.2603 -4.4933 0.71 0.09 5.6 0.5 40.5 3.7 29.5 2.6 124 11.63 BLG521 1.1905 -5.1086 0.59 0.08 4.5 0.5 24.7 3.1 30.9 2.6 69 9.18 BLG522 5.5202 -4.0329 0.90 0.11 7.4 0.8 41.5 4.3 28.5 2.8 108 8.62 BLG523 4.4477 -4.6423 0.87 0.11 6.0 0.7 39.2 4.2 34.1 3.4 99 10.40 BLG524 3.3712 -5.2462 0.72 0.11 6.0 0.8 36.7 4.5 28.2 3.4 75 9.66 BLG525 2.2975 -5.8574 0.40 0.08 3.2 0.5 15.1 2.6 29.9 3.4 36 7.84 BLG526 1.2260 -6.4752 0.31 0.08 2.3 0.5 7.8 1.8 31.3 4.9 20 5.25 BLG527 8.8082 -3.6426 0.92 0.15 5.5 0.9 21.9 3.5 39.5 5.0 48 6.36 BLG528 7.7241 -4.2297 0.63 0.11 5.5 0.9 24.7 4.0 26.9 3.7 50 7.39 BLG529 6.6383 -4.8152 0.65 0.12 5.6 1.0 26.8 4.7 27.2 3.9 39 7.79 BLG530 5.5505 -5.3987 1.00 0.16 8.5 1.3 39.2 6.3 27.6 3.9 54 7.37 BLG531 4.4760 -6.0094 0.68 0.13 5.1 1.0 22.2 4.1 30.7 4.1 34 6.85 BLG532 3.3951 -6.6107 0.41 0.10 2.7 0.7 10.3 2.2 34.8 6.0 23 6.02 BLG533 2.0542 -0.4054 1.23 1.23 7.1 7.1 4.7 4.7 40.5 40.5 1 1.02 BLG534 -1.1356 -2.2547 1.55 0.15 17.2 1.3 104.8 8.1 20.8 1.6 176 9.06 BLG535 -2.2129 -2.8632 1.67 0.15 15.2 1.1 85.2 6.4 25.7 1.7 189 7.57 BLG536 -5.3552 -6.0490 0.51 0.14 3.8 1.1 12.2 3.4 31.3 6.0 15 5.21 BLG539 -4.2223 -6.8055 0.61 0.21 4.0 1.4 11.6 4.0 34.9 11.9 13 4.52 BLG543 8.7716 -2.2752 1.07 0.20 5.9 1.1 17.7 3.1 41.8 5.5 36 4.76 BLG544 7.6890 -2.8622 0.77 0.13 6.1 1.0 22.1 3.7 29.2 3.5 40 5.66 BLG545 6.6053 -3.4482 0.85 0.13 6.1 0.9 25.0 3.7 32.3 4.2 57 6.47 BLG546 0.1530 -7.0928 0.45 0.13 3.4 1.0 8.4 2.5 30.7 4.5 12 4.25 BLG547 -0.9252 -7.7037 0.19 0.11 1.3 0.8 3.1 1.8 32.6 12.6 3 3.67 BLG566 9.9310 -7.1538 0.14 0.10 0.9 0.7 1.6 1.1 38.5 13.6 2 3.03 BLG573 0.1216 -5.7276 0.40 0.08 3.7 0.7 16.9 3.0 25.0 2.8 33 7.16 BLG580 5.4762 -2.6684 1.00 0.11 8.0 0.8 43.1 4.1 29.1 2.2 116 8.47 BLG588 -0.9534 -6.3377 0.40 0.09 2.7 0.5 9.1 1.9 33.9 4.0 23 5.39 BLG597 -2.0280 -6.9510 0.56 0.11 4.0 0.8 11.1 2.2 31.6 3.6 27 4.28 BLG599 -5.4275 -4.6916 0.52 0.10 3.9 0.7 19.4 3.3 31.4 4.2 41 7.80 BLG600 -6.5036 -5.2961 0.44 0.12 2.9 0.8 9.6 2.6 35.1 8.7 18 5.29 BLG603 -4.4401 -2.7412 1.21 0.12 10.6 0.9 66.8 5.4 26.7 2.0 167 10.02 BLG604 -5.5113 -3.3505 0.96 0.11 7.0 0.8 43.0 4.6 32.0 2.6 100 9.80 BLG605 -6.5850 -3.9567 0.77 0.17 3.9 0.8 14.7 3.0 45.9 8.5 29 6.13 BLG606 -7.6615 -4.5597 0.98 0.50 3.8 1.2 10.3 3.2 60.3 24.7 11 4.48 BLG609 -5.6069 -2.0233 1.24 0.15 8.4 1.0 36.7 4.2 34.4 2.7 81 6.77 BLG610 -6.6777 -2.6334 0.88 0.16 6.2 1.3 22.3 4.5 32.8 5.9 38 5.78 BLG611 0.3282 2.8242 1.52 0.15 16.2 1.3 70.0 5.7 21.8 1.6 158 6.93 BLG612 -1.0464 3.4008 1.19 0.15 10.1 1.2 48.2 5.5 27.0 2.6 87 7.34 BLG613 -2.0762 2.7248 1.31 0.14 12.4 1.2 62.7 6.3 24.4 2.1 119 7.99 BLG614 -2.2382 4.0765 0.78 0.14 5.5 0.9 21.9 3.6 33.2 4.7 43 6.32 BLG615 -3.2679 3.3992 1.09 0.16 6.8 0.9 35.9 4.4 37.5 4.5 74 8.09 BLG616 -3.1997 5.6697 0.41 0.12 3.4 1.0 11.2 3.3 28.2 4.1 12 5.08 BLG617 -4.2100 4.9609 0.70 0.14 5.2 1.1 20.9 4.4 30.8 7.0 43 6.32 BLG619 0.0082 5.4341 0.69 0.40 3.3 2.0 9.4 5.6 49.0 11.2 3 4.47 BLG621 4.4323 5.5773 0.71 0.12 6.8 1.2 21.3 3.8 24.5 3.3 44 5.15 BLG622 3.3887 4.9182 0.75 0.17 3.6 0.8 10.6 2.3 49.4 8.1 25 4.76 BLG624 5.6025 4.8747 0.61 0.13 4.3 0.9 16.3 3.4 33.6 6.5 31 6.02 BLG625 4.5592 4.2168 0.78 0.15 5.5 0.9 22.9 3.5 33.4 5.0 46 6.47 BLG626 3.5176 3.5577 0.95 0.11 8.3 1.0 43.7 4.9 26.8 2.4 92 8.32 BLG629 7.8134 4.8089 0.53 0.17 3.4 1.1 9.7 3.1 36.7 7.8 11 4.56 BLG630 6.7610 4.1659 0.73 0.17 4.4 0.8 13.8 2.6 39.1 6.6 30 5.11 BLG631 5.7162 3.5117 0.87 0.13 7.1 1.0 31.5 4.4 28.7 3.5 61 7.09 BLG632 4.6747 2.8534 1.11 0.12 9.0 0.9 55.1 5.1 28.5 2.2 128 9.59 BLG633 3.6341 2.1945 1.72 0.20 13.1 1.4 52.4 5.4 30.4 2.8 106 6.30 BLG636 7.9121 3.4452 0.64 0.17 5.1 1.4 13.8 3.9 29.0 5.0 14 4.26 BLG637 6.8600 2.8041 0.97 0.16 5.2 0.9 19.4 3.2 43.0 4.7 40 5.84 BLG638 5.8168 2.1491 0.87 0.13 6.9 1.0 35.5 4.9 29.4 3.6 64 7.96 BLG639 4.7762 1.4906 1.38 0.19 10.4 1.3 33.5 4.3 30.9 3.0 70 5.08 BLG641 7.9992 2.0816 0.82 0.16 4.9 1.0 16.5 3.2 38.8 5.7 31 5.33 BLG642 6.9487 1.4394 1.25 0.23 8.7 1.5 17.4 3.0 33.5 3.6 36 3.22 BLG643 5.9062 0.7838 1.17 0.33 5.7 1.4 7.5 1.9 47.6 9.0 17 2.11 BLG644 4.2691 -0.5348 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 1.02 BLG645 3.2039 -1.1511 2.02 0.32 13.6 1.9 29.2 4.0 34.3 4.5 63 3.33 BLG646 4.3401 -1.8981 1.12 0.17 8.3 1.2 26.3 3.7 31.7 4.1 57 5.09 BLG647 3.1204 0.2092 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 0.68 BLG648 1.9634 0.9419 1.90 0.28 18.3 2.4 33.2 4.4 24.0 2.8 67 2.86 BLG649 0.8963 0.3281 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 0.93 BLG650 -0.1665 -0.2925 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 0.91 BLG651 -1.2329 -0.9073 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 1.56 BLG652 1.8508 2.3000 1.52 0.17 14.2 1.6 60.0 6.9 24.9 2.6 100 6.55 BLG653 -0.8998 2.0442 2.29 0.24 20.1 2.0 67.7 6.5 26.6 2.1 127 5.37 BLG654 -1.9286 1.3682 1.84 0.20 16.7 1.6 53.0 5.3 25.6 1.9 110 4.92 BLG655 -2.9551 0.6890 1.07 0.62 9.5 6.1 12.7 8.2 26.3 12.3 3 2.13 BLG657 2.3179 -7.2216 0.32 0.13 2.6 1.1 7.2 3.0 27.2 4.0 6 4.43 BLG659 -2.3030 -1.5164 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 1.05 BLG660 -3.3695 -2.1318 2.59 0.34 23.7 2.6 81.8 9.1 25.5 2.6 94 4.63 BLG661 -4.5361 -1.4138 2.22 0.32 15.2 2.2 41.1 5.9 34.0 5.0 80 4.22 BLG662 -3.1047 2.0479 1.50 0.19 12.2 1.4 47.9 5.6 28.6 2.8 87 6.16 BLG663 6.5466 -2.0595 0.40 0.23 3.7 2.3 5.1 3.1 25.2 16.1 4 2.15 BLG664 5.4117 -1.2924 0.51 0.22 5.7 2.7 6.6 3.2 21.0 8.5 6 1.85 BLG665 1.2091 4.8559 0.41 0.41 1.2 1.2 2.1 2.1 79.6 79.6 1 2.72 BLG666 0.1737 4.1858 1.57 0.94 9.8 5.8 12.7 7.5 37.3 12.4 3 2.04 BLG667 1.3523 3.4996 1.23 0.26 11.3 2.5 17.3 3.8 25.3 5.1 27 2.41 BLG668 -4.1383 1.3792 0.81 0.22 8.8 2.9 10.7 3.5 21.3 5.7 15 1.93 BLG670 -5.7392 -0.6699 1.70 0.55 10.7 2.6 11.1 2.8 37.0 11.0 19 1.65 BLG672 -7.9091 -1.8529 1.24 0.35 5.6 1.4 8.3 2.1 51.8 10.6 17 2.45 BLG675 0.7819 1.6875 2.40 0.23 26.5 2.3 95.5 8.3 21.0 1.8 160 5.64 BLG676 -0.2799 1.0642 0.19 0.19 3.9 3.9 11.0 11.0 10.8 10.8 1 4.58 BLG677 -1.3467 0.4490 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 0.96 BLG680 -7.7734 -3.2045 0.50 0.19 5.0 2.0 11.3 4.3 23.4 6.6 8 3.57 BLG683 3.0214 1.5708 3.63 0.88 26.2 5.9 73.0 16.3 32.3 4.7 21 4.28 BLG705 4.4295 -11.4798 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 1.10 BLG706 5.4859 -12.2582 0.14 0.14 3.4 3.4 2.0 2.0 9.9 9.9 1 0.94 BLG707 4.3744 -12.8458 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 0.81 BLG708 5.4276 -13.6408 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 0.84 BLG709 6.4709 -14.4267 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 0.61 BLG710 5.3429 -15.0054 0.63 0.63 2.6 2.6 1.0 1.0 56.0 56.0 1 0.59 BLG711 6.3893 -15.8210 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 0.48 BLG714 2.4794 2.8944 1.24 0.20 11.0 1.7 41.6 6.6 26.4 3.6 54 5.84 BLG715 2.3472 4.2575 1.24 0.22 10.2 1.9 22.0 3.9 28.0 3.1 36 3.42 BLG717 7.6458 -1.5033 0.81 0.34 3.9 1.6 5.1 2.1 48.1 9.2 6 2.06