Results 61 to 70 of about 4,278,679 (301)
The Astrophysical JournalAccretion supermassive black holes in the center of active galaxies usually produce “jet”-collimated bipolar outflows of relativistic particles. Magnetic fields near the black hole event horizon may play a crucial role in the formation of jets/outflows ...
Yongyun Chen +6 more
doaj +1 more source
A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring
Advanced Science, EarlyView.Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo +4 more
wiley +1 more source
A Hubble Space Telescope Imaging Survey of Low-redshift Swift-BAT Active Galaxies* [PDF]
, 2021 Minjin Kim +3 more
openalex +1 more source
The Astrophysical JournalInfrared-faint radio sources (IFRSs) are believed to be a rare class of radio-loud active galactic nuclei (AGNs) characterized by their high radio-to-infrared flux density ratios of up to several thousand.
Yihang Zhang +6 more
doaj +1 more source
The mean star formation rate of X-ray selected active galaxies and its evolution from z~2.5: results from PEP-Herschel [PDF]
, 2012 We study relationships between star-formation rate (SFR) and the accretion luminosity and nuclear obscuration of X-ray selected active galactic nuclei (AGNs) using a combination of deep far-infrared (FIR) and X-ray data in three key extragalactic survey ...
D. Rosario +43 more
semanticscholar +1 more source
Edible Pneumatic Battery for Sustained and Repeated Robot Actuation
Advanced Science, EarlyView.This work presents an edible energy source and valve system to power soft, pneumatically driven edible robots. A chemical reaction between sodium bicarbonate and citric acid generates carbon dioxide gas, and a pressure‐triggered edible valve enables self‐repetitive motion of the edible actuator.
Bokeon Kwak +5 more
wiley +1 more source
AGN STORM 2. VIII. Investigating the Narrow Absorption Lines in Mrk 817 Using HST-COS Observations
The Astrophysical JournalWe observed the Seyfert 1 galaxy Mrk 817 during an intensive multiwavelength reverberation mapping campaign for 16 months. Here, we examine the behavior of narrow UV absorption lines seen in the Hubble Space Telescope/Cosmic Origins Spectrograph spectra,
Maryam Dehghanian +41 more
doaj +1 more source
The Astrophysical Journal Letters, 2023 The Cosmic Evolution Early Release Science program observed the Extended Groth Strip (EGS) with the Mid-Infrared Instrument (MIRI) on the James Webb Space Telescope (JWST) in 2022.
Allison Kirkpatrick +35 more
doaj +1 more source
RECALIBRATION OF THE VIRIAL FACTOR AND MBH–σ* RELATION FOR LOCAL ACTIVE GALAXIES [PDF]
, 2012 Determining the virial factor of the broad-line region gas is crucial for calibrating active galactic nucleus black hole mass estimators, since the measured line-of-sight velocity needs to be converted into the intrinsic virial velocity.
Daeseong Park, B. Kelly, J. Woo, T. Treu
semanticscholar +1 more source
Diversity and Ecological Potentials of Marine Viruses Inhabiting Continental Shelf Seas
Advanced Science, EarlyView.To the best of the knowledge, this study provides the largest viral genome dataset from a continental shelf sea. It reveals that over half of vOTUs are novel, highlighting the remarkable viral novelty in the eastern continental shelf seas of China (ECSSC).
Xiaoyue Guo +9 more
wiley +1 more source