Month: September 2022

PREDICTION. “We expect these disruption events to be very luminous as a portion of the accretion power likely channels into a relativistic jet.” https://lnkd.in/djnsGi4 View in LinkedIn

VERIFIED. “There are now a few cases in which hard X-ray emission from launching a relativistic jet was observed following a flare from stellar disruption.” https://lnkd.in/djnsGi4 View in LinkedIn

LOWER LIMIT. “An otherwise quiet MBH would show bright, beamed emission after the disruption of a WD. Therefore, detecting (or not detecting) signals from the tidal disruptions of WDs could place constraints on the MBH population.” (WD = white dwarf; MBH = Massive Black Hole). https://lnkd.in/djnsGi4 View in LinkedIn

INEVITABLE QUESTION. “A major goal of this paper is to determine the tidal energy and angular momentum transfer rates for a WD in a high-eccentricity orbit around an MBH.” (WD = white dwarf; MBH = Massive Black Hole). https://lnkd.in/djnsGi4 View in LinkedIn

UNFORGETTABLE LITMUS TEST. “Is this brilliance or complicated nonsense?” (Cartoonist of Shoe, Jeff MacNelly, whose brilliant epithet has been lost in the bowels of time). Once kept on a suspended baseball bat over my desk. Never forget this one! https://lnkd.in/dCstGxV View in LinkedIn

Guesses? View in LinkedIn

COSMIC POSTAL SYSTEM. “Tidal dissipation in WDs arises from the excitation of gravity waves in the deeper envelope of the WD and their dissipation in the outer envelope.” (WD = white dwarf). https://lnkd.in/djnsGi4 View in LinkedIn

TECHNICALITIES. “These processes depend on the detailed properties of the WD, in particular, properties of the envelope. In this paper, we consider two CO WD models consisting of a CO core with a He–H envelope.” (WD = white dwarf). https://lnkd.in/djnsGi4 View in LinkedIn

A FIRST. “This paper is a first study on how dynamical tides affect a WD in an eccentric orbit around an MBH.” (WD = white dwarf; MBH = massive black hole). https://lnkd.in/djnsGi4 View in LinkedIn

HYDROGEN ENVELOPE. “Our work poses the question of what happens to a WD in an eccentric orbit around a BH that has already lost its hydrogen envelope in a runaway fusion event. The absence of a hydrogen envelope will change the behaviour of gravity waves near the surface of the WD and may reduce tidal dissipation.” (WD = white dwarf; BH = black hole). https://lnkd.in/djnsGi4 View in LinkedIn