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astro-ph.HE2025
Radiation pressure instability: from heart-beat states in black hole binary systems to Quasars and Changing-Look AGN
Agnieszka Janiuk, Bozena Czerny, Pulkit Ojha +2
Radiation-pressure instability was identified soon after the seminal classical accretion disk models of Shakura-Sunyaev and Novikov-Thorne, yet its full implications remain an acti…
astro-ph.HE2025
Long-term evolution of Sco X-1: implications for the current spin frequency and ellipticity of the neutron star
Abhijnan Kar, Pulkit Ojha, Sudip Bhattacharyya
Sco X-1 is the brightest observed extra-solar X-ray source, which is a neutron star (NS) low-mass X-ray binary (LMXB), and is thought to have a strong potential for continuous grav…