Results 51 to 60 of about 3,210,725 (308)

Growing Massive Black Holes in a Local Group Environment: the Central Supermassive, Slowly Sinking, and Ejected Populations

, 2011
We explore the growth of < 10^7 Msun black holes that reside at the centers of spiral and field dwarf galaxies in a Local Group type of environment. We use merger trees from a cosmological N-body simulation known as Via Lactea II (VL-2) as a framework to
Abel, Abel, Adams, Aguilar, Alexander, Baes, Baker, Begelman, Begelman, Bellovary, Berczik, Binney, Bogdanovic, Boker, Booth, Boylan-Kolchin, Bromm, Bromm, Bromm, Bullock, Burkert, Campanelli, Cattaneo, Colpi, Cote, Cox, Croton, David, Dekel, Di, Di, Di, Di Steffano, Diemand, Diemand, Dotti, Dotti, Ebisuzaki, Escala, Fan, Fender, Ferrarese, Ferrarese, Ferrarese, Gebhardt, Gebhardt, Ghez, Ghigna, Gnedin, Gonzalez, Gonzalez, Granato, Greenstein, Haehnelt, Haehnelt, Heger, Heggie, Hernquist, Herrmann, Ho, Holley-Bockelmann, Holley-Bockelmann, Holley-Bockelmann, Hopkins, Hopkins, Hopkins, Hopkins, Hu, Islam, Islam, Kauffmann, Kazantzidis, Kelly Holley-Bockelmann, Keres, Kesden, Komossa, Koppitz, Kormendy, Koushiappas, Kravtsov, Lehner, Loeb, Lousto, Maccarone, Maccarone, Maccarone, Mack, Madau, Makino, Marconi, Matthews, Mayer, Melia, Menou, Merloni, Merritt, Merritt, Micic, Micic, Mihos, Miller, Milosavljevic, Milosavljevic, Miroslav Micic, Monaco, Navarro, Nayakshin, Ostriker, O’Sullivan, Pedersen, Portegies, Quataert, Quinlan, Rees, Richstone, Robertson, Sales, Schneider, Schnittman, Schnittman, Sesana, Shakura, Shankar, Sigurdsson, Sijacki, Sijacki, Silk, Sinha, Soltan, Somerville, Sperhake, Steinn Sigurdsson, Taffoni, Tremaine, Trenti, Trenti, Valluri, van der Marel, Volonteri, Volonteri, Volonteri, Weinberg, Wise, Wyithe   +143 more
core   +1 more source

Testing general relativity using gravitational wave signals from the inspiral, merger and ringdown of binary black holes [PDF]

, 2017
Advanced LIGO’s recent observations of gravitational waves (GWs) from merging binary black holes have opened up a unique laboratory to test general relativity (GR) in the highly relativistic regime.
A. Ghosh, N. Johnson-McDaniel, A. Ghosh, C. Mishra, P. Ajith, W. D. Pozzo, C. Berry, A. Nielsen, L. London   +8 more
semanticscholar   +1 more source

Large-scale Reservoir Simulations on IBM Blue Gene/Q

, 2016
This paper presents our work on simulation of large-scale reservoir models on IBM Blue Gene/Q and studying the scalability of our parallel reservoir simulators. An in-house black oil simulator has been implemented.
H Liu, K Coats, K Coats, K Coats, K Coats, L Zhang, M Christie, Z Chen   +7 more
core   +1 more source

Black tattoos entail substantial uptake of genotoxicpolycyclic aromatic hydrocarbons (PAH) in human skin and regional lymph nodes. [PDF]

PLoS ONE, 2014
Hundreds of millions of people worldwide have tattoos, which predominantly contain black inks consisting of soot products like Carbon Black or polycyclic aromatic hydrocarbons (PAH). We recently found up to 200 μg/g of PAH in commercial black inks. After
Karin Lehner, Francesco Santarelli, Rudolf Vasold, Randolph Penning, Alexis Sidoroff, Burkhard König, Michael Landthaler, Wolfgang Bäumler   +7 more
doaj   +1 more source

The Constant Inner-Disk Radius of LMC X-3: A Basis for Measuring Black Hole Spin [PDF]

, 2010
The black-hole binary system LMC X-3 has been observed by virtually every X-ray mission since the inception of X-ray astronomy. Among the persistent sources, LMC X-3 is uniquely both habitually soft and highly variable.
Abramowicz, Arnaud, Blum, Capalbi, Davis, Davis, Done, Ebisawa, Esin, Fabian, Fiore, Gou, Guainazzi, Jahoda, Kubota, Kuiper, Li, Maeda, Makishima, McClintock, Miller, Noble, Orosz, Parmar, Penna, Reynolds, Serlemitsos, Shafee, Shafee, Smith, Steiner, Stuhlinger, Turner, Wilms, Zhang   +34 more
core   +2 more sources

A Wide Dispersion in Star Formation Rate and Dynamical Mass of 108 Solar Mass Black Hole Host Galaxies at Redshift 6 [PDF]

, 2017
Atacama Large Millimeter Array [C ii] line and continuum observations of five redshift quasars are presented. This sample was selected to probe quasars with lower black hole mass than most previous studies.
C. Willott, J. Bergeron, A. Omont
semanticscholar   +1 more source

Relativistic Hydrodynamic Evolutions with Black Hole Excision

, 2004
We present a numerical code designed to study astrophysical phenomena involving dynamical spacetimes containing black holes in the presence of relativistic hydrodynamic matter.
A.I. MacFadyen, A.I. MacFadyen, A.J. Castro-Tirado, A.M. Abrahams, B. Kelly, C.L. Fryer, D. Shoemaker, E. Seidel, F.A. Rasio, F.A. Rasio, F.A. Rasio, G. Calabrese, G. Calabrese, G. Yoneda, G. Yoneda, G.B. Cook, G.B. Cook, H. Sato, H.-J. Yo, Hwei-Jang Yo, J. Font, J. Hjorth, J.A. Faber, J.A. Font, J.A. Font, J.A. Font, J.K. Truelove, J.M. Bowen, J.M. Centrella, J.N. Cook, J.N. Reeves, J.R. Oppenheimer, J.R. Oppenheimer, J.S. Bloom, L. Barack, L.E. Kidder, L.I. Petrich, L.I. Petrich, M. Alcubierre, M. Alcubierre, M. Alcubierre, M. Alcubierre, M. Alcubierre, M. Alcubierre, M. Saijo, M. Shibata, M. Shibata, M. Shibata, M. Shibata, M. Shibata, M. Shibata, M. Shibata, M. Shibata, M. Shibata, M. Shibata, M.A. Abramowicz, M.A. Scheel, M.A. Scheel, M.A. Scheel, M.D. Duez, M.H.P.M. van Putten, M.J. Rees, M.W. Choptuik, Matthew D. Duez, N.Ó. Murchadha, O. Zanotti, P. Anninos, P. Anninos, P. Garnavich, P. Papadopoulos, R. Gómez, R. Gómez, R. Narayan, R. Penrose, R.F. Stark, R.L. Marsa, S. Balberg, S. Brandt, S. Brandt, S. Detweiler, S. Nishida, S.L. Shapiro, S.L. Shapiro, Stuart L. Shapiro, T. Nakamura, T. Piran, T. Zwerger, T.J. Galama, T.W. Baumgarte, T.W. Baumgarte, T.W. Baumgarte, T.W. Baumgarte, U. Sperhake, V. Moncrief, W.G. Unruh, Y. Eriguchi, Y.T. Liu, Y.T. Liu   +97 more
core   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Formation of Supermassive Black Holes

, 2010
Evidence shows that massive black holes reside in most local galaxies. Studies have also established a number of relations between the MBH mass and properties of the host galaxy such as bulge mass and velocity dispersion.
A Freise, A Heger, A Loeb, A Marconi, A Marconi, A Merloni, A Merloni, A Sesana, A Soltan, AJ Barth, AJ Barth, AM Ghez, AV Gruzinov, B Devecchi, BJ Carr, BJ Carr, C Alcock, C Lacey, CF McKee, CJ Willott, CJ Willott, CL Fryer, D Merritt, D Reed, D Spolyar, DJ Eisenstein, DN Page, E Berti, E Gallo, E Quataert, E Ripamonti, E Ripamonti, EH Wehner, F Hoyle, F Iocco, F Santoro, FC Bosch van den, G Ghisellini, G Lodato, HJ Mo, I Shlosman, J Diemand, J Kormendy, J Magorrian, JA Regan, JC Tan, JC Vernaleo, JE Greene, JF Navarro, JH Wise, JL Johnson, JR Bond, JS Bullock, K Freese, K Gebhardt, K Gebhardt, K Gültekin, K Omukai, K Omukai, KG Arun, L Ferrarese, L Ferrarese, L Ferrarese, L Gao, L Spitzer, LC Ho, M Ajello, M Dijkstra, M Elvis, M Freitag, M Freitag, M Mateo, M Milosavljević, M Ricotti, M Saijo, M Shibata, M Spaans, M Tegmark, M Trenti, M Valluri, M Volonteri, M Volonteri, M Volonteri, M Volonteri, M Volonteri, M Walter, MA Abramowicz, MA Abramowicz, MA Gürkan, MA Gürkan, Marta Volonteri, MC Aller, MC Begelman, MC Begelman, MC Begelman, MC Begelman, MC Begelman, MC Begelman, MC Miller, MG Haehnelt, MG Walker, MG Walker, MJ Turk, MS Bovill, MY Khlopov, N Häring, N Yoshida, NY Gnedin, P Côté, P Madau, PC Clark, PF Hopkins, Q Yu, R Decarli, R Salvaterra, R Schneider, R Schödel, RD Blandford, RD Blandford, RK Sheth, RP Kudritzki, S Hawking, S Tremaine, SA Hughes, SDM White, SE Woosley, SF Portegies Zwart, SF Portegies Zwart, SF Portegies Zwart, SL Shapiro, SM Koushiappas, SP Oh, SR Majewski, T Abel, T Ebisuzaki, T Tanaka, TH Greif, TW Baumgarte, V Bromm, V Bromm, V Bromm, V Springel, VR Eke, W Zhang, X Fan, X Fan, X Fan, YB Zeldovich, YB Zel’Dovich, Z Barkat, Z Haiman   +150 more
core   +1 more source

Dynamical Friction and the Evolution of Supermassive Black Hole Binaries: The Final Hundred-parsec Problem [PDF]

The Astrophysical Journal, 2017
Abstract The supermassive black holes originally in the nuclei of two merging galaxies will form a binary in the remnant core. The early evolution of the massive binary is driven by dynamical friction before the binary becomes “hard” and eventually reaches coalescence through gravitational-wave emission.
Fani Dosopoulou, Fabio Antonini
openaire   +3 more sources