278 citations
- Institut d'Astrophysique de ParisFR49 papers
- Johns Hopkins UniversityUS49 papers
- Centre National de la Recherche ScientifiqueFR46 papers
- Sorbonne UniversitéFR44 papers
- University of OxfordGB44 papers
- University of BaltimoreUS8 papers
- Laboratoire de Physique Théorique et Hautes EnergiesFR7 papers
- Université Paris CitéFR6 papers
- CEA Paris-SaclayFR5 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR5 papers
- Institut de Recherche sur les Lois Fondamentales de l'UniversFR5 papers
- Delta Institute for Theoretical PhysicsNL4 papers
52 papers
Toward Black Hole Stars: supermassive black hole growth in nuclear clusters via stellar-object and gas accretion
Konstantinos Kritos, Joseph Silk
Supermassive black hole (SMBH) growth plausibly occurs via runaway astrophysical black hole mergers in nuclear star clusters that form intermediate mass black hole seeds at high re…
Semi-primitive roots and irreducible quadratic forms
Marc Wolf, François Wolf
Modulo a prime number, we define semi-primitive roots as the square of primitive roots. We present a method for calculating primitive roots from quadratic residues, including semi-…
Least response method to separate CMB spectral distortions from foregrounds
J. -P. Maillard, A. Mihalchenko, D. Novikov +3
We present a signal-foreground separation algorithm for filtering observational data to extract spectral distortions of the cosmic microwave background (CMB). Our linear method, ca…
Magnetic fields catalyze massive black hole formation and growth
Mitchell C. Begelman, Joseph Silk
Large-scale magnetic fields in the nuclear regions of protogalaxies can promote the formation and early growth of supermassive black holes (SMBHs) by direct collapse and magnetical…
Dark Matter spikes around Sgr A* in -rays
Shyam Balaji, Divya Sachdeva, Filippo Sala +1
We use H.E.S.S. -ray observations of Sgr A* to derive novel limits on the Dark Matter (DM) annihilation cross-section. We quantify their dependence on uncertainties i) in the DM…
Off-centre supermassive black holes in bright central galaxies
Aline Chu, Pierre Boldrini, Joe Silk
Supermassive black holes (SMBHs) are believed to reside at the centre of massive galaxies such as brightest cluster galaxies (BCGs). However, as BCGs experienced numerous galaxy me…