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- Goddard Space Flight CenterUS398 papers
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61 papers · 1 filter
Conceptual Analogies Between Multi-Scale Feeding and Feedback Cycles in Supermassive Black Hole and Cancer Environments
Matteo Santoni, Francesco Tombesi, Alessia Cimadamore +2
Adopting three physically-motivated scales (micro - meso - macro, which refer to mpc - kpc - Mpc, respectively) is paramount for achieving a unified theory of multiphase active gal…
Broadband X-ray Burst Spectroscopy of the FRB-Emitting Galactic Magnetar
G. Younes, M. G. Baring, C. Kouveliotou +22
Magnetars are young, magnetically-powered neutron stars possessing the strongest magnetic fields in the Universe. Fast Radio Bursts (FRBs) are extremely intense millisecond-long ra…
A tidal disruption event coincident with a high-energy neutrino
Robert Stein, Sjoert van Velzen, Marek Kowalski +55
Cosmic neutrinos provide a unique window into the otherwise-hidden mechanism of particle acceleration in astrophysical objects. A flux of high-energy neutrinos was discovered in 20…
GW190412: Observation of a Binary-Black-Hole Coalescence with Asymmetric Masses
The LIGO Scientific Collaboration, the Virgo Collaboration, R. Abbott +1254
We report the observation of gravitational waves from a binary-black-hole coalescence during the first two weeks of LIGO's and Virgo's third observing run. The signal was recorded…
NuSTAR perspective on high-redshift MeV blazars
L. Marcotulli, V. Paliya, M. Ajello +7
With bolometric luminosities exceeding erg s, powerful jets and supermassive black holes at their center, MeV blazars are some of the most extreme sources in the U…
Constraining the Local Burst Rate Density of Primordial Black Holes with HAWC
A. Albert, R. Alfaro, C. Alvarez +84
Primordial Black Holes (PBHs) may have been created by density fluctuations in the early Universe and could be as massive as solar masses or as small as the Planck mass. I…