Results 71 to 80 of about 482,012 (314)

FUNDAMENTAL MASS–SPIN–MORPHOLOGY RELATION OF SPIRAL GALAXIES [PDF]

, 2013
This work presents high-precision measurements of the specific baryon angular momentum jb contained in stars, atomic gas, and molecular gas, out to ≳ 10 scale radii, in 16 nearby spiral galaxies of the THINGS sample.
D. Obreschkow, K. Glazebrook
semanticscholar   +1 more source

Assembling Spiral Galaxies [PDF]

Symposium - International Astronomical Union, 1996
Nearby spiral galaxies offer vital clues to some of the most fundamental questions about galaxy formation and evolution: What is the star formation history of the universe, past and future? When did disks form, during the final stages of a single primeval collapse, or as a continuous or episodic process?
openaire   +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, Sehee Yang, Sanghyuk Park, Shin‐Hyun Kim   +3 more
wiley   +1 more source

JWST Reveals a Surprisingly High Fraction of Galaxies Being Spiral-like at 0.5 ≤ z ≤ 4

The Astrophysical Journal Letters
Spiral arms are one of the most important features used to classify the morphology of local galaxies. The cosmic epoch when spiral arms first appeared contains essential clues to the evolution of disk galaxies.
Vicki Kuhn, Yicheng Guo, Alec Martin, Julianna Bayless, Ellie Gates, AJ Puleo   +5 more
doaj   +1 more source

Extragalactic Magnetism with SOFIA (SALSA Legacy Program). V. First Results on the Magnetic Field Orientation of Galaxies

The Astrophysical Journal, 2023
We present the analysis of the magnetic field ( B -field) structure of galaxies measured with far-infrared (FIR) and radio (3 and 6 cm) polarimetric observations.
Alejandro S. Borlaff, Enrique Lopez-Rodriguez, Rainer Beck, Susan E. Clark, Evangelia Ntormousi, Konstantinos Tassis, Sergio Martin-Alvarez, Mehrnoosh Tahani, Daniel A. Dale, Ignacio del Moral-Castro, Julia Roman-Duval, Pamela M. Marcum, John E. Beckman, Kandaswamy Subramanian, Sarah Eftekharzadeh, Leslie Proudfit   +15 more
doaj   +1 more source

M101: The Pinwheel Galaxy [PDF]

, 2006
This Hubble Space Telescope image of M101 showcases a spiral galaxy's well-known features. The text describes the features that are common to all spiral galaxies.

core  

Decreased Frequency of Strong Bars in S0 Galaxies: Evidence for Secular Evolution?

, 2010
Using data from the Near-Infrared S0 Survey (NIRS0S) of nearby, early-type galaxies, we examine the distribution of bar strengths in S0 galaxies as compared to S0/a and Sa galaxies, and as compared to previously published bar strength data for Ohio State
Abraham, Bekki, Bell, Burstein, Buta, Buta, Buta, Buta, Buta, Buta, Buta, Buta, Combes, Combes, de Vaucouleurs, Dressler, E. Laurikainen, Eskridge, H. Salo, Heller, J. H. Knapen, Kormendy, Laurikainen, Laurikainen, Laurikainen, Laurikainen, Martinez-Valpuesta, Merrifield, Persic, R. Buta, Sandage, Shen, Shioya, Skrutskie, Speltincx, van den Bergh, Zhang, Zhang, Zhang   +38 more
core   +1 more source

HST Photometry and Keck Spectroscopy of the Rich Cluster MS1054-03: Morphologies, Butcher-Oemler Effect and the Color-Magnitude Relation at z=0.83 [PDF]

, 2000
We present a study of 81 I selected, spectroscopically-confirmed members of the X-ray cluster MS1054-03 at z=0.83. Redshifts and spectral types were determined from Keck spectroscopy.
Andreon S., Aragon-Salamanca A., Barbaro G., Bower R. G., Couch W. J., Daniel D. Kelson, Daniel Fabricant, de Theije P. A. M., Fried J. W., Garth D. Illingworth, Hogbom J. A., Kodama T., Marijn Franx, Pieter G. van Dokkum, Tytler D., van Dokkum P. G.   +15 more
core   +2 more sources

CHARACTERISTICS OF SPIRAL ARMS IN LATE-TYPE GALAXIES [PDF]

, 2014
We have measured the positions of large numbers of H ii regions in four nearly face-on, late-type, spiral galaxies: NGC 628 (M74), NGC 1232, NGC 3184, and NGC 5194 (M51).
Z. N. Honig, M. Reid
semanticscholar   +1 more source

Nuclear Spirals in Galaxies [PDF]

, 2008
6 pages, 4 figures, to appear in ""Mapping the Galaxy and Nearby Galaxies", Eds. K. Wada and F.
openaire   +2 more sources