Fig. 3
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Cadence of the VVV+VVVX bulge observations. Top: density plot showing the cadence of the bulge observations in both VVV and VVVX campaigns. Bottom: light curve example for the source VVV-VIVACE ID 533558 (Ks − 14.9 mag; Molnar et al. 2022), observed by VVV+VVVX in the five VISTA broad band filters in the bulge field b307. There are a total of 363 observations in the five filters along years 2010 to 2019. The coordinates for the target are RA, Dec (J2000) = 18:00:11.48, −28:25:13 (corresponding to l, b = 2.0688, −2.4904 deg.).
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