Results 41 to 50 of about 4,155,209 (246)

DO QUIESCENT AND ACTIVE GALAXIES HAVE DIFFERENT MBH–σ* RELATIONS? [PDF]

, 2013
To investigate the validity of the assumption that quiescent galaxies and active galaxies follow the same black hole mass (MBH)–stellar velocity dispersion (σ*) relation, as required for the calibration of MBH estimators for broad line active galactic ...
J. Woo, A. Schulze, Daeseong Park, W. Kang, Sang Chul Kim, D. Riechers   +5 more
semanticscholar   +1 more source

Megamaser Activity in Active Galaxies [PDF]

Symposium - International Astronomical Union, 1999
Megamaser emission provides an unprecedented view of the inner nuclear regions of active galaxies. The characteristics of OH, H2CO, and H2O sources identify different physical environments in the nuclei of megamaser host galaxies. Various classification schemes suggest a dominant starburst nature for the OH and H2CO sources providing the NIR/FIR ...
openaire   +2 more sources

THE SINS/zC-SINF SURVEY OF z ∼ 2 GALAXY KINEMATICS: EVIDENCE FOR POWERFUL ACTIVE GALACTIC NUCLEUS-DRIVEN NUCLEAR OUTFLOWS IN MASSIVE STAR-FORMING GALAXIES [PDF]

, 2013
We report the detection of ubiquitous powerful nuclear outflows in massive (⩾1011 M☉) z ∼ 2 star-forming galaxies (SFGs), which are plausibly driven by an active galactic nucleus (AGN).
N. F. Schreiber, R. Genzel, S. Newman, J. Kurk, D. Lutz, L. Tacconi, S. Wuyts, K. Bandara, Andreas Burkert, P. Buschkamp, C. Carollo, G. Cresci, E. Daddi, R. Davies, F. Eisenhauer, E. Hicks, E. Hicks, P. Lang, S. Lilly, V. Mainieri, C. Mancini, T. Naab, Yingjie Peng, A. Renzini, D. Rosario, K. S. Griffin, A. Shapley, A. Sternberg, S. Tacchella, D. Vergani, E. Wisnioski, E. Wuyts, G. Zamorani   +32 more
semanticscholar   +1 more source

Addressing persistent challenges in digital image analysis of cancer tissue: resources developed from a hackathon

Molecular Oncology, EarlyView.
Large multidimensional digital images of cancer tissue are becoming prolific, but many challenges exist to automatically extract relevant information from them using computational tools. We describe publicly available resources that have been developed jointly by expert and non‐expert computational biologists working together during a virtual hackathon
Sandhya Prabhakaran, Clarence Yapp, Gregory J. Baker, Johanna Beyer, Young Hwan Chang, Allison L. Creason, Robert Krueger, Jeremy Muhlich, Nathan Heath Patterson, Kevin Sidak, Damir Sudar, Adam J. Taylor, Luke Ternes, Jakob Troidl, Xie Yubin, Artem Sokolov, Darren R. Tyson   +16 more
wiley   +1 more source

A HYBRID MODEL FOR THE EVOLUTION OF GALAXIES AND ACTIVE GALACTIC NUCLEI IN THE INFRARED [PDF]

, 2013
We present a comprehensive investigation of the cosmological evolution of the luminosity function of galaxies and active galactic nuclei (AGNs) in the infrared (IR).
Z. Cai, A. Lapi, J. Xia, G. De Zotti, M. Negrello, C. Gruppioni, E. Rigby, G. Castex, J. Delabrouille, L. Danese   +9 more
semanticscholar   +1 more source

Stellar populations in active galaxies [PDF]

Proceedings of the International Astronomical Union, 2004
To appear in "The Interplay among Black Holes, Stars and ISM in Galactic Nuclei", T. Storchi Bergmann, L.C. Ho & H.R. Schmitt, eds., Proc IAU Symp 222 (Cambridge University Press)
openaire   +2 more sources

Simultaneous inhibition of TRIM24 and TRIM28 sensitises prostate cancer cells to antiandrogen therapy, decreasing VEGF signalling and angiogenesis

Molecular Oncology, EarlyView.
TRIM24 and TRIM28 are androgen receptor (AR) coregulators which exhibit increased expression with cancer progression. Both TRIM24 and TRIM28 combine to influence the response of castrate‐resistant prostate cancer (CRPC) cells to AR inhibitors by mediating AR signalling, regulation of MYC and upregulating VEGF to promote angiogenesis. Castrate‐resistant
Damien A. Leach, Nilesh Chatterjee, Kellie Spahr, Gilberto Serrano de Almeida, Anabel Varela‐Carver, Taimur T. Shah, Mathias Winkler, Hashim U. Ahmed, Charlotte L. Bevan   +8 more
wiley   +1 more source

NEBULAR EXCITATION IN z ∼ 2 STAR-FORMING GALAXIES FROM THE SINS AND LUCI SURVEYS: THE INFLUENCE OF SHOCKS AND ACTIVE GALACTIC NUCLEI [PDF]

, 2013
Based on high-resolution, spatially resolved data of 10 z ∼ 2 star-forming galaxies from the SINS/zC-SINF survey and LUCI data for 12 additional galaxies, we probe the excitation properties of high-z galaxies and the impact of active galactic nuclei ...
S. Newman, P. Buschkamp, R. Genzel, N. F. Förster Schreiber, J. Kurk, A. Sternberg, O. Gnat, D. Rosario, C. Mancini, S. Lilly, A. Renzini, A. Burkert, C. Carollo, G. Cresci, R. Davies, F. Eisenhauer, S. Genel, K. Shapiro Griffin, E. Hicks, D. Lutz, T. Naab, Yingjie Peng, L. Tacconi, S. Wuyts, G. Zamorani, D. Vergani, B. Weiner   +26 more
semanticscholar   +1 more source

Scintillation Response of 0D Cs3Cu2I5 Thin Layers to Light‐ and Heavy‐Ion Irradiation

Advanced Photonics Research, EarlyView.
Driven by increasing interest in uncovering the remarkable photoluminescence quantum yield of Cs3Cu2I5, polycrystalline thin layers are synthesized to investigate its radioluminescence response to energetic ions. Its spectroscopic capability is assessed in a wide range of ion mass and internal excitation processes are explored.
Mátyás Hunyadi, Attila Csík, Cintia Hajdu, Csaba Janáky, István Rajta, Gergely F. Samu, Lóránt Csige   +6 more
wiley   +1 more source

FUELING ACTIVE GALACTIC NUCLEI. I. HOW THE GLOBAL CHARACTERISTICS OF THE CENTRAL KILOPARSEC OF SEYFERTS DIFFER FROM QUIESCENT GALAXIES [PDF]

, 2013
In a matched sample of Seyfert and quiescent galaxies we simultaneously probe the stellar and molecular gas kinematics from 1 kpc down to 50 pc with the aim of identifying the dynamical processes dictating black hole accretion rates.
E. Hicks, Richard I. Davies, W. Maciejewski, E. Emsellem, M. Malkan, G. Dumas, F. Sanchez, Austin Rivers   +7 more
semanticscholar   +1 more source