Results 161 to 170 of about 663,816 (320)
Pride of the East: Motorcycle Speedway, Transnational Encounters and Provincial Heartlands
Abstract For a century, speedway has operated on a transnational basis. Its riders, competitions and machinery regularly traverse national and continental borders. The imposition of the Cold War's Iron Curtain did little to impede its growth. This article focuses on one of speedway's far‐flung and diverse provincial heartlands to show how the sport ...
RICHARD MILLS
wiley +1 more source
Distribution and kinematics of H I in the active elliptical galaxy NGC 1052
The H I distribution in the active elliptical galaxy NGC 1052 has been mapped at a resolution of 1 arcmin with the VLA. The H I structure is about three times the size of the optical galaxy and is roughly perpendicular to its major axis.
J. Gorkom+4 more
semanticscholar +1 more source
NGC 770: A Counterrotating Core in a Low-Luminosity Elliptical Galaxy [PDF]
We present evidence for a counterrotating core in the low-luminosity (MB = -18.2) elliptical galaxy NGC 770 based on internal stellar kinematic data. This counterrotating core is unusual, as NGC 770 is not the primary galaxy in the region and lies in an ...
M. Geha+2 more
semanticscholar +1 more source
Energy Evolution in the Progenitor of Galaxy Shells: A Semi-analytical Model
The stellar shells surrounding an elliptical galaxy, as remnants of a dwarf galaxy disrupted during merging, reveal the distribution of energy and angular momentum of the progenitor dwarf galaxy. We develop a semi-analytical model to describe the changes
Beibei Guo+3 more
doaj +1 more source
Vigorous star formation in a bulge-dominated ERO at z = 1.34
We present near-IR spectroscopy of three Extremely Red Objects (EROs) using the OHS/CISCO spectrograph at Subaru telescope. One target exhibits a strong emission line which we identify as H-alpha at z = 1.34.
Bolton, Rosemary C.+2 more
core +2 more sources
Leaf Shelters Facilitate the Colonisation of Arthropods and Enhance Microbial Diversity on Plants
This research demonstrates that ecosystem engineers, through the construction of leaf shelters, play a critical role in shaping not only arthropod community assembly but also the dynamics of the phyllosphere microbial community. We identified specific bacterial taxa with strong associations with leaf shelters, revealing a shift in microbial community ...
Danilo F. B. dos Santos+8 more
wiley +1 more source
Planetary Nebulae and Stellar Kinematics in the Flattened Elliptical Galaxy NGC 1344 [PDF]
We present photometric and kinematic information obtained by measuring 197 planetary nebulae (PNs) discovered in the flattened Fornax elliptical galaxy NGC 1344 (also known as NGC 1340) with an on-band, off-band, and grism+on-band filter technique.
A. Teodorescu+6 more
semanticscholar +1 more source
Diverse Galaxies Lithograph [PDF]
This Hubble Space Telescope image shows the diversity of galaxies in the universe. A huge elliptical galaxy, designated ESO 325-G004, dominates the image.
core
Galaxy Modeling with Compound Elliptical Shapelets
Gauss-Hermite and Gauss-Laguerre ("shapelet") decompositions of images have become important tools in galaxy modeling, particularly for the purpose of extracting ellipticity and morphological information from astronomical data.
Andrae+5 more
core +1 more source
Galaxy Morphological Classification with Zernike Moments and Machine Learning Approaches
Classifying galaxies is an essential step for studying their structures and dynamics. Using GalaxyZoo2 (GZ2) fractions thresholds, we collect 545 and 11,735 samples in nongalaxy and galaxy classes, respectively.
Hamed Ghaderi+2 more
doaj +1 more source