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Rapid Orbital Decay in the Ultracompact Double-degenerate Binary eRASSU J060839.5–704014

  • Authors: Rahul Sharma, Chandreyee Maitra, Frank Haberl, Joheen Chakraborty, Susanne Friedrich, Yong-Feng Huang, Chichuan Jin, Zhaosheng Li, Georgios Vasilopoulos, Yanjun Xu, Haonan Yang, Weimin Yuan

Rahul Sharma et al 2026 The Astrophysical Journal Letters 1007 .

  • Provider: AAS Journals

Caption: Figure 3.

Phase-resolved spectroscopy with NICER (black) and EP-FXT (red). The panels (from top to bottom) show the orbital-folded profile in terms of normalized count rate, blackbody temperature (kT), blackbody normalization, and unabsorbed flux in the 0.2–2 keV range in units of 10−13 erg cm−2 s−1, respectively.

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