Results 51 to 60 of about 85,185 (266)
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
The Astrophysical Journal, 2023 Observed breakBRD (“break bulges in red disks”) galaxies are a nearby sample of face-on disk galaxies with particularly centrally concentrated star formation: they have red disks but recent star formation in their centers as measured by the D _n 4000 ...
Stephanie Tonnesen +2 more
doaj +1 more source
Red Fraction Among Satellite Galaxies with Disk-like Light Profiles: Evidence for Inflow in the H I Disk [PDF]
, 2010 The relationships between color, characterized with respect to the g – r red sequence; stellar structure, as determined using the i-band Sérsic index; and group membership are explored using the Sloan Digital Sky Survey (SDSS).
Hester, J. A.
core
Dynamics of Starbursting Dwarf Galaxies. III. A HI study of 18 nearby objects [PDF]
, 2014 We investigate the dynamics of starbursting dwarf galaxies, using both new and archival HI observations. We consider 18 nearby galaxies that have been resolved into single stars by HST observations, providing their star formation history and total ...
Fraternali, Filippo +2 more
core +2 more sources
Nuclear Stellar Disks in Spiral Galaxies [PDF]
The Astrophysical Journal, 2002 We report evidence for nuclear stellar disks in 3 early-type spirals, namely NGC 1425, NGC 3898 and NGC 4698, revealed by WFPC2/F606W images out of a sample of 38 spiral galaxies, selected from the Hubble Space Telescope Data Archive. Adopting the photometric method introduced by Scorza & Bender we derived their central surface brightness and ...
PIZZELLA, ALESSANDRO +6 more
openaire +3 more sources
Astronomische Nachrichten, EarlyView.ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik +12 more
wiley +1 more source
An Explanation for the Overrepresentation of Tidal Disruption Events in Post-starburst Galaxies
The Astrophysical Journal, 2023 Tidal disruption events (TDEs) provide a valuable probe for studying the dynamics of stars in the nuclear environments of galaxies. Recent observations show that TDEs are strongly overrepresented in post-starburst or “green valley” galaxies, although the
Mengye Wang +3 more
doaj +1 more source
Properties of simulated Milky Way-mass galaxies in loose group and field environments [PDF]
, 2012 We test the validity of comparing simulated field disk galaxies with the empirical properties of systems situated within environments more comparable to loose groups, including the Milky Way's Local Group.
Brook, C. B. +5 more
core +6 more sources
Secular evolution in disk galaxies [PDF]
, 2013 159 pages, 84 postscript figures, 3 tables, LaTeX, requires tweaked cupbook.cls; published in Secular Evolution of Galaxies, XXIII Canary Islands Winter School of Astrophysics, ed. J Falcon-Barroso & J. H.
openaire +2 more sources
Batteries &Supercaps, EarlyView.Cycling water‐in‐salt batteries involves complex degradation processes that require multiprobe analysis. Using online electrochemical mass spectrometry (OEMS), postmortem X‐ray photoemission spectroscopy (XPS) (including hard‐XPS), and scanning electron microscopy (SEM), the degradation mechanisms are examined in composite electrodes (TiS2 and LiFePO4)
Célia Doublet +7 more
wiley +1 more source