Results 41 to 50 of about 421,913 (232)
The Astrophysical Journal Letters, 2022 Mergers are thought to be a fundamental channel for galaxy growth, perturbing the gas dynamics and the magnetic fields ( B -fields) in the interstellar medium (ISM).
Enrique Lopez-Rodriguez +10 more
doaj +1 more source
Dynamics of stars around spiral arms in an N-body/SPH simulated barred-spiral galaxy [PDF]
, 2009 We run N-body smoothed particle hydrodynamics (SPH) simulations of a Milky Way sized galaxy. The code takes into account hydrodynamics, self-gravity, star formation, supernova and stellar wind feedback, radiative cooling and metal enrichment.
R. Grand, D. Kawata, M. Cropper
semanticscholar +1 more source
Star Formation and Magnetic Field Amplification due to Galactic Spirals
The Astrophysical JournalWe use global MHD galaxy simulations to investigate the effects of spiral arms on the evolution of magnetic fields and star formation within a self-regulated interstellar medium.
Hector Robinson +3 more
doaj +1 more source
Optical observations of the nearby galaxy IC342 with narrow band [SII] and Hα filters. I [PDF]
Serbian Astronomical Journal, 2013 We present observations of a portion of the nearby spiral galaxy IC342 using narrow band [SII] and Hα filters. These observations were carried out in November 2011 with the 2m RCC telescope at Rozhen National Astronomical Observatory in Bulgaria.
Vučetić M.M. +6 more
doaj +1 more source
Facile Bottom‐Up Assembly of Photonic Micropatterns via Surface‐Guided Colloidal Crystallization
Advanced Materials, EarlyView.High‐resolution photonic micropatterns with vivid structural colors are fabricated through bottom‐up assembly, guided by surface‐dependent regioselective heterogeneous nucleation and crystal growth of colloidal particles. Full‐spectrum color tunability is achieved by controlling particle size and interparticle attraction, while in situ color mixing is ...
Yongseok Jung +3 more
wiley +1 more source
STAR FORMATION EFFICIENCY IN THE BARRED SPIRAL GALAXY NGC 4303 [PDF]
, 2010 We present new 12CO (J = 1 − 0) observations of the barred galaxy NGC 4303 using the Nobeyama 45 m telescope (NRO45) and the Combined Array for Research in Millimeter-wave Astronomy (CARMA).
R. Momose +3 more
semanticscholar +1 more source
A Dynamic Galaxy: Stellar Age Patterns across the Disk of M101
The Astrophysical JournalUsing deep, narrowband imaging of the nearby spiral galaxy M101, we present stellar age information across the full extent of the disk of M101. Our narrowband filters measure age-sensitive absorption features such as the Balmer lines and the slope of the
Ray Garner III +3 more
doaj +1 more source
Mass extinction and the structure of the milky way [PDF]
Serbian Astronomical Journal, 2013 We use the most up-to-date Milky Way model and solar orbit data in order to test the hypothesis that the Sun's galactic spiral arm crossings cause mass extinction events on Earth. To do this, we created a new model of the Milky Way's spiral arms
Filipović M.D. +4 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane +4 more
wiley +1 more source
DYNAMICAL CONSTRAINTS ON THE MASSES OF THE NUCLEAR STAR CLUSTER AND BLACK HOLE IN THE LATE-TYPE SPIRAL GALAXY NGC 3621 [PDF]
, 2008 NGC 3621 is a late-type (Sd) spiral galaxy with an active nucleus, previously detected through mid-infrared [Ne v] line emission. Archival Hubble Space Telescope (HST) images reveal that the galaxy contains a bright and compact nuclear star cluster.
A. Barth +4 more
semanticscholar +1 more source