Radio fluxes of PSR B1259−63. Those obtained with ALMA are shown by the filled black square (Band 3 or 97 GHz at tp + 71 d), the filled orange circle (Band 3 at tp + 84 d), and the filled blue circle (Band 7 or 343 GHz at tp + 69 d). Unpulsed fluxes obtained with ATCA at tp + 63.4 d at the 2000 passage are shown by red dots (Connors et al. 2002) and those at tp + 64.2 d at the 2004 passage are shown by green dots (Johnston et al. 2005). The dotted purple line is a spectrum represented by Sν ∝ ν−0.5. The normalization is set so that the line passes the second ALMA Band 3 observation (filled orange circle). Dashed black lines show the infrared emission from the Be star’s circumstellar disk for different disk sizes predicted by van Soelen & Meintjes (2011). The disk sizes are (from the bottom to the top) 10, 20, 30, 40, and 50 R*. (Color online)
