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First Detection of an Ultracool Dwarf at 340 MHz: VLITE Observations of EI Cancri AB

  • Authors: Michele L. Silverstein, Tracy E. Clarke, Wendy M. Peters, Emil Polisensky, Jackie Villadsen, Jordan M. Stone

Michele L. Silverstein et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 1.

Left: VLITE detection of EI Cancri on 2018 April 26 from an image with 7 hr on source across a 28 hr duration. The image has a pixel scale of 1﹩\mathop{.}\limits^{\unicode{x02033}}﹩2 pixel−1 and a resolution of ﹩3\mathop{.}\limits^{\unicode{x02033}}9\times 3\mathop{.}\limits^{\unicode{x02033}}8﹩. The stellar binary is prominently detected with a peak flux of 2.7 ± 0.4 mJy beam−1 and S/N = 7.71. Right: zoom-in on the detection. The positions of the stellar components are shown by the star symbols, corrected for proper motion. The positions of the three individual detections in the time-chopped (10 minutes) images are marked with plus signs, with shaded light-blue circles representing 1σ positional errors. Table 2 places the 7 hr event in context with other archival detections, and the three 10-minute events are further described in Table 3.

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