Results 21 to 30 of about 114 (75)

A Catalog of the Most Optically Luminous Galaxies at z < 0.3: Super Spirals, Super Lenticulars, Super Post-mergers, and Giant Ellipticals [PDF]

open access: bronzeThe Astrophysical Journal Supplement Series, 2019
We present a catalog of the 1525 most optically luminous galaxies from the Sloan Digital Sky Survey (SDSS) with r-band luminosity L_r > 8L* and redshift z<0.3, including 84 super spirals, 15 super lenticulars, 14 super post-merger galaxies, and 1400 giant ellipticals.
Patrick M. Ogle   +4 more
openalex   +5 more sources

Dust-lanes in elliptical and lenticular galaxies

open access: green, 1982
A small proportion of elliptical and lenticular galaxies show evidence of well-defined dust-lanes when examined on deep survey plates. New near-infrared (JHK) observations of 46 dust-lane galaxies are presented and compared with those for a sample of 24 morphologigally normal systems. Infrared excesses are found preferentially in galaxies which exhibit
R. M. Sharples
openalex   +3 more sources

The central velocity dispersion in elliptical and lenticular galaxies as an extragalactic distance indicator

open access: closedThe Astrophysical Journal, 1982
The Faber-Jackson relation between absolute magnitude M/sub T//sup 0/ and central velocity dispersion sigma/sub upsilon/ is reexamined for a sample of 157 normal, noninteracting galaxies, 82 ellipticals (T = -5, -4), and 75 lenticulars (T = -3, -2, -1). The values of sigma/sub upsilon/ are weighted means from various sources reduced to a uniform system
G. de Vaucouleurs, Donald W. Olson
openalex   +2 more sources

Early-type galaxy speciation: elliptical (E) and ellicular (ES) galaxies in the Mbh–M*,sph diagram, and a merger-driven explanation for the origin of ES galaxies, antitruncated stellar discs in lenticular (S0) galaxies, and the Sérsicification of E galaxy light profiles

open access: goldMonthly Notices of the Royal Astronomical Society
ABSTRACT In a recent series of papers, supermassive black holes were used to discern pathways in galaxy evolution. By considering the black holes’ coupling with their host galaxy’s bulge/spheroid, the progression of mass within each component has shed light on the chronological sequence of galaxy speciation.
Alister W. Graham
openalex   +2 more sources

The dwarf star content of elliptical and lenticular galaxies

open access: closedThe Astrophysical Journal, 1986
D. Carter, N. Visvanathan, A. J. Pickles
openalex   +3 more sources

The Invisibility of Scotomas I: The Carving Hypothesis

open access: yesOptometry and Vision Science, Volume 100, Issue 8, Page 515-529, August 2023., 2023
SIGNIFICANCE Veridical depictions of scene appearance with scotomas allow better understanding of the impact of field loss and may improve the development and implementation of rehabilitation. Explanation and depiction of the invisibility of scotoma may lead to patients' understanding and thus better compliance with related treatments.
Eli Peli   +2 more
wiley   +1 more source

Comparison between a handheld ultrasound device and a traditional ultrasound for performing transcranial sonography in patients with Parkinson's disease

open access: yesBrain and Behavior, Volume 13, Issue 2, February 2023., 2023
Graph 1. The receiver operating characteristic (ROC) curve. The area under the curve is 0.91 with a confidence interval (CI) of 95%: 0.84–0.97. The best substantia nigra cutoff value was 0.20 cm2. Sensitivity = 0.98 and specificity = 0.87. Abstract Objective The aim of this study is to compare a portable ultrasound (US) device and a traditional US for ...
Maria A. S. Paes   +5 more
wiley   +1 more source

The role of siliciclastics in carbonate fabric diversity and preservation: A case study from the Neoproterozoic carbonate − siliciclastic Horse Thief Springs Formation, Death Valley

open access: yesSedimentology, Volume 69, Issue 5, Page 2284-2318, August 2022., 2022
Abstract The sedimentary record of the Pahrump Group in Death Valley comprises well‐exposed successions of mixed carbonate and siliciclastic deposits. Despite the abundance of studies focussing on the depositional dynamics of mixed carbonate – siliciclastic deposition in the Phanerozoic, the record of similar Proterozoic examples is comparatively ...
Daniel Smrzka   +7 more
wiley   +1 more source

Bose‐Einstein Condensate Dark Matter Halos Confronted with Galactic Rotation Curves

open access: yesAdvances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017
We present a comparative confrontation of both the Bose‐Einstein Condensate (BEC) and the Navarro‐Frenk‐White (NFW) dark halo models with galactic rotation curves. We employ 6 High Surface Brightness (HSB), 6 Low Surface Brightness (LSB), and 7 dwarf galaxies with rotation curves falling into two classes.
M. Dwornik   +4 more
wiley   +1 more source

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