Results 121 to 130 of about 53,302 (262)

THE MOSDEF SURVEY: OPTICAL ACTIVE GALACTIC NUCLEUS DIAGNOSTICS AT z ∼ 2.3 [PDF]

, 2014
We present results from the MOSFIRE Deep Evolution Field (MOSDEF) survey on rest-frame optical active galactic nucleus (AGN) identification and completeness at z  ∼  2.3. With our sample of 50 galaxies and 10 X-ray and IR-selected AGNs with measured Hβ, [
A. Coil, J. Aird, N. Reddy, A. Shapley, M. Kriek, B. Siana, B. Mobasher, W. Freeman, S. Price, I. Shivaei   +9 more
semanticscholar   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Impact of red giant/AGB winds on active galactic nucleus jet propagation

, 2017
Dense stellar winds may mass-load the jets of active galactic nuclei, although it is unclear what are the time and spatial scales in which the mixing takes place.
M. Perucho, V. Bosch-Ramon, M. Barkov
semanticscholar   +1 more source

Long non‐coding RNAs Kcnq1ot1 and Lncpint are involved in skeletal muscle atrophy induced by the space exposome

The Journal of Physiology, EarlyView.
Abstract figure legend Long non‐coding RNAs (lncRNAs) KCNQ1OT1 and LINC‐PINT are upregulated in mouse, human and cell models of spaceflight‐induced muscle atrophy, revealing a novel regulatory role under (simulated) microgravity. Abstract Long non‐coding RNAs (lncRNAs) play an important role in the regulation of skeletal muscle transcriptional ...
Sergio Pérez‐Díaz, Bjorn Baselet, Alen Lovric, Tommy R. Lundberg, Mieke Neefs, Lisa Daenen, Eric Rullman, Rodrigo Fernandez‐Gonzalo   +7 more
wiley   +1 more source

Resolving a Candidate Dual Active Galactic Nucleus with ∼100 pc Separation in MCG-03-34-64

The Astrophysical Journal
We report the serendipitous multiwavelength discovery of a candidate dual black hole system with a separation of ∼100 pc, in the gas-rich luminous infrared galaxy MCG-03-34-64 ( z = 0.016).
Anna Trindade Falcão, T. J. Turner, S. B. Kraemer, J. Reeves, V. Braito, H. R. Schmitt, L. Feuillet   +6 more
doaj   +1 more source

Observing—and Imaging—Active Galactic Nuclei with the Event Horizon Telescope

Galaxies, 2016
Originally developed to image the shadow region of the central black hole in Sagittarius A* and in the nearby galaxy M87, the Event Horizon Telescope (EHT) provides deep, very high angular resolution data on other active galactic nucleus (AGN) sources ...
Vincent L. Fish, Kazunori Akiyama, Katherine L. Bouman, Andrew A. Chael, Michael D. Johnson, Sheperd S. Doeleman, Lindy Blackburn, John F. C. Wardle, William T. Freeman, the Event Horizon Telescope Collaboration   +9 more
doaj   +1 more source

A Small Pathbreaking Spacecraft: Giants of Space Research (Bernard Blake, Dieter Hovestadt, and Edward Stone)

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
wiley   +1 more source

Deformation mechanism of CeO2 nanocubes studied at room temperature using in situ nanocompression in environmental transmission electron microscopy

Journal of the American Ceramic Society, Volume 108, Issue 9, September 2025.
Deformation mechanism of CeO2 nanocubes and their size dependence of the elastic strain. Abstract The deformation mechanism of CeO2 nanocubes has been studied at room temperature using in situ nanocompression experiments in an environmental transmission electron microscope. Different imaging conditions were used to identify the slip systems.
Rongrong Zhang, Lucile Joly‐Pottuz, Frédéric Chaput, David J. Dunstan, Karine Masenelli‐Varlot   +4 more
wiley   +1 more source

Continental‐Hemispheric Scale Dust Events Driven by Last Glacial Alpine Ice Sheet Dynamics

Geophysical Research Letters, Volume 52, Issue 13, 16 July 2025.
Abstract Greenland ice cores demonstrate that transient last glacial cold climate events (stadials) were associated with greatly enhanced atmospheric dust loading. Detailed radiocarbon dating of loess in central Europe reveals concurrent increases in dust activity in dust‐emitting regions.
Yunus Baykal, Gábor Újvári, Thomas Stevens, Sergio Andò, Adriano Banak, Sanja Šuica, Marta Barbarano, Eduardo Garzanti   +7 more
wiley   +1 more source

A Reverberation Mapping Study of a Highly Variable Active Galactic Nucleus 6dFGS gJ022550.0-060145

The Astrophysical Journal
We use LCOGT observations (MJD 59434−59600) with a total exposure time of ≃50 hr and a median cadence of 0.5 day to measure the interband time delays (with respect to u ) in the g , r , and i continua of a highly variable active galactic nucleus (AGN ...
Danyang Li, Mouyuan Sun, Junfeng Wang, Jianfeng Wu, Zhixiang Zhang   +4 more
doaj   +1 more source