The Astrophysical Journal LettersRecent James Webb Space Telescope observations have revealed a peculiar class of galaxies at redshifts z ≳ 6, characterized by extremely high central stellar densities and overmassive central supermassive black holes (SMBHs), “little red dots” (LRDs). A
Fazeel Mahmood Khan +3 more
doaj +1 more source
Dynamics of Elliptical Galaxies with Planetary Nebulae in Modified Newtonian Dynamics
, 2016 The dynamics of an elliptical galaxy within a couple of effective radii can be probed effectively by stars. However, at larger distances planetary nebulae (PNe) replace stars as the tracer of the dynamics.
Ko, Chung-Ming, Tian, Yong
core +1 more source
The Way We Measure: Comparison of Methods to Derive Radial Surface Brightness Profiles [PDF]
, 2016 The breaks and truncations in the luminosity profile of face-on spiral galaxies offer valuable insights in their formation history. The traditional method of deriving the surface photometry profile for face-on galaxies is to use elliptical averaging.
de Jong, R. S. +2 more
core +2 more sources
STRUCTURE AND FORMATION OF ELLIPTICAL AND SPHEROIDAL GALAXIES [PDF]
, 2008 New surface photometry of all known elliptical galaxies in the Virgo cluster is combined with published data to derive composite profiles of brightness, ellipticity, position angle, isophote shape, and color over large radius ranges. These provide enough
J. Kormendy +3 more
semanticscholar +1 more source
In Situ Analysis of Jupiter's Broadband Kilometric Auroral Radio Emissions With Juno
Geophysical Research Letters, Volume 52, Issue 9, 16 May 2025.Abstract Among the zoo of Jovian auroral radio emissions, the broadband kilometric (bKOM) component has been the least studied. Taking advantage of Juno in situ measurements within the auroral regions, we surveyed the Juno/Waves radio observations over the 60 first orbits to identify 7 bKOM source candidates.
B. Collet +4 more
wiley +1 more source
Structural properties of pseudo-bulges, classical bulges and elliptical galaxies: a Sloan Digital Sky Survey perspective [PDF]
, 2008 We have performed 2D bulge/bar/disc decompositions using g, r and i-band images of a representative sample of nearly 1000 galaxies from the Sloan Digital Sky Survey.
D. Gadotti
semanticscholar +1 more source
Selection of Biofortified Sweet Potato (Ipomoea batatas L.) Genotypes in Response to Drought Stress
Journal of Agronomy and Crop Science, Volume 211, Issue 3, May 2025.ABSTRACT The development of orange‐ and purple‐fleshed sweet potato genotypes with high nutritional quality and drought tolerance is paramount in the face of climate changes and exponential human population growth. Therefore, the objective was to select biofortified sweet potato genotypes tolerant to drought. Eight progenies developed by the NEOSC‐UFSC
Antonio Nunes de Andrade +10 more
wiley +1 more source
Kinematics of diffuse elliptical galaxies
Astrophysics and Space Science, 2003 To be published in "The Evolution of Galaxies. III. From Simple Approaches to Self-Consistent Models", G.
Francois Simien, Philippe Prugniel
openaire +3 more sources
A Photometric Study of Giant Ellipticals and Their Stellar Halos With VST
Galaxies, 2017 Observations of diffuse starlight in the outskirts of galaxies are thought to be a fundamental source of constraints on the cosmological context of galaxy assembly in the Λ CDM model.
Marilena Spavone +10 more
doaj +1 more source
Deviations of the Light Distribution from the Sersic's model in Elliptical galaxies [PDF]
مجلة التربية والعلم, 1999 : The surface brightness profiles of 46 elliptical galaxies, belong to Coma Cluster of galaxies have been fitted by the generalized Sersic r1/n – law for the intermediate radius range .
Omar Saleh, Saad Youins
doaj +1 more source