Smooth X-ray variability from ? Ophiuchi A+B. A strongly magnetized primary B2 star?DOI: info:10.1051/0004-6361/201424243v. 567EDP SciencesL4
Pillitteri, Ignazio, Wolk, Scott J., Goodman, Alyssa A., and Sciortino, Salvatore. 2014. "Smooth X-ray variability from ? Ophiuchi A+B. A strongly magnetized primary B2 star?" Astronomy and Astrophysics, 567 L4. https://doi.org/10.1051/0004-6361/201424243.