A5115458390- Astrophysical Phenomena and Observations
- Mechanics and Biomechanics Studies
- Pulsars and Gravitational Waves Research
- Gamma-ray bursts and supernovae
We present the first spectro-polarimetric study of bright atoll source GX 9+1, using simultaneous Imaging X-ray Polarimetry Explorer (IXPE), and Neutron star Interior Composition (NICER) observations. The was observed to remain in soft state, with no changes state throughout observation period. does not show significant polarization 2-8 keV energy range. However, a (3.3 sigma) detected 2-3 range, degree 3.3 +/- 0.8% angle 11 7 deg. used spectra from NICER (0.6 - keV) IXPE (2-8 spectral...
Abstract We present the spectral and timing study of bright neutron star low-mass X-ray binary GX 5-1 using AstroSat/Large Area Proportional Counter (LAXPC) Soft Telescope observations conducted in 2018. During observation, source traces out complete horizontal branch (HB) normal (NB) Z-track hardness–intensity diagram (HID). Understanding temporal evolution along can probe accretion process vicinity a star. Spectral analysis was performed 0.7–20 keV energy range for different segments HID...