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Clumpy Wind Studies and the Nondetection of a Cyclotron Line in OAO 1657–415

  • Authors: Pragati Pradhan, Carlo Ferrigno, Biswajit Paul, Enrico Bozzo, Ileyk El Mellah, David P. Huenemoerder, James F. Steiner, Victoria Grinberg, Felix Furst, Chandreyee Maitra, Patrizia Romano, Peter Kretschmar, Jamie Kennea, Deepto Chakrabarty

Pragati Pradhan et al 2023 The Astrophysical Journal 945 .

  • Provider: AAS Journals

Caption: Figure 1.

Orbit of the neutron star (solid green line) around its massive stellar companion (in blue) as seen from Earth. The values of orbital separation (a), orbital inclination (i), eccentricity (e), longitude of periastron (Ω), and periastron angle (ω) are given in the lower right corner (Jenke et al. 2012). Black dots along the orbit mark orbital phases, while the red solid line is the main axis of the orbit. The phases for NuSTAR (magenta line) and NICER observations (brown crosses) are plotted.

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