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A Large Misalignment between Continuous Jet and Discrete Ejecta in Microquasar GRS 1915+105 during Its Obscured Phase

  • Authors: Wu Jiang, Xi Yan, Zhen Yan, Ya-Ping Li, Lang Cui, Zhi-Qiang Shen

Wu Jiang et al 2026 The Astrophysical Journal Letters 1000 .

  • Provider: AAS Journals

Caption: Figure 3.

Phase-referenced images of GRS 1915+105 observed with EAVN at 6.7 GHz on 2023 April 15 (left), 17 (middle), and 23 (right). Contours start at 0.5 mJy beam−1, increasing by factors of 2. The synthesized beam is indicated in the bottom-left corner of each panel. The J2000 coordinates of the map center (0,0) are (﹩1{9}^{{\rm{h}}}1{5}^{{\rm{m}}}11\mathop{.}\limits^{s}5473﹩, ﹩+1{0}^{\circ }5{6}^{{\prime} }44\mathop{.}\limits{^{\prime\prime} }7040﹩), corresponding to the source positions at an epoch within 2007–2008. The red cross marks the expected source position in 2023 (﹩1{9}^{{\rm{h}}}1{5}^{{\rm{m}}}11\mathop{.}\limits^{s}54409﹩ mas, ﹩+1{0}^{\circ }5{6}^{{\prime} }44\mathop{.}\limits{^{\prime\prime} }6044﹩ mas), extrapolated from proper motion estimates. These results suggest the detection of a bright, compact core of GRS 1915+105 in our phase-referenced images.

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