Results 91 to 100 of about 53,348 (269)

Nuclear Activity and the Dynamics of Elliptical Galaxies

, 2004
This paper looks for any correlation between the internal dynamics of elliptical galaxies and the relatively mild nuclear activity found in many such systems.
Bender, Bender, Binney, Davies, Eracleous, Ho, Ho, Kauffmann, Kormendy, Kormendy, M. R. Merrifield, Naab, Prugniel, Prugniel   +13 more
core   +2 more sources

Thermotolerant class A acid phosphatase active across broad pH range and diverse substrates

Protein Science, Volume 34, Issue 9, September 2025.
Abstract M2‐32 is a non‐specific acid phosphatase with a rare ability to function across a broad pH range (3.5–8.5). Analysis using SWISS‐PROT Prf Profiles classifies it as a class A acid phosphatase (Z‐score: 78.97), sharing 50%–60% sequence similarity with enzymes such as PhoC and PhoN.
Maria‐Isabel Recio, José A. Gavira, Jesús de La Torre, Mario Cano‐Muñoz, Sergio Martínez‐Rodriguez, Abdelali Daddaoua, Estrella Duque, Juan L. Ramos   +7 more
wiley   +1 more source

A unified linear intrinsic alignment model for elliptical and disc galaxies and the resulting ellipticity spectra

The Open Journal of Astrophysics
Alignments of disc galaxies were thought to result from tidal torquing, where tidal field of the cosmic large-scale structure exert torquing moments onto dark matter haloes, determining their angular momentum and ultimately the orientation of galactic ...
Basundhara Ghosh, Kai Nussbaumer, Eileen Sophie Giesel, Björn Malte Schäfer   +3 more
doaj   +1 more source

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, Massimo Capaccioli, Nicola R. Napolitano, Enrichetta Iodice, Aniello Grado, Luca Limatola, Andrew P. Cooper, Michele Cantiello, Duncan A. Forbes, Maurizio Paolillo, Pietro Schipani   +10 more
doaj   +1 more source

The Extremely Low Mechanical Force Generated by Nano‐Pulling Induces Global Changes in the Microtubule Network, Nuclear Morphology, and Chromatin Transcription in Neurons

Small, Volume 21, Issue 38, September 25, 2025.
Nano‐pulling induces stabilization, reorganization, and reorientation of the microtubule network. The nucleus of stretched cells experiences increased lateral tension, becomes more spherical, and develops surface grooves. At the level of gene expression regulation, changes in nuclear morphology induce global chromatin remodeling, leading to reduced ...
Alessandro Falconieri, Lorenzo Da Palmata, Valentina Cappello, Tiziana Julia Nadjeschda Schmidt, Pietro Folino, Barbara Storti, Ranieri Bizzarri, Vittoria Raffa   +7 more
wiley   +1 more source

X-ray Properties of Young Early Type Galaxies: II. Abundance Ratio in the Hot ISM

, 2012
Using Chandra X-ray observations of young, post-merger elliptical galaxies, we present X-ray characteristics of age-related observational results, by comparing with typical old elliptical galaxies in terms of metal abundances in the hot interstellar ...
Antonio Pipino, Baldi, Boroson, Buote, Buote, David, Dong-Woo Kim, Fabbiano, Fabian, Gibson, Gilfanov, Giuseppina Fabbiano, Howell, Humphrey, Irwin, Iwamoto, Ji, Kim, Kim, Kim, Kim, Kim, Kobayashi, Loewenstein, Maeda, Matsushita, Nagataki, Pagel, Pipino, Richings, Schweizer, Tal, Thomas, Tonry, Trager   +34 more
core   +1 more source

ELLIPTICITIES OF ELLIPTICAL GALAXIES IN DIFFERENT ENVIRONMENTS

The Astrophysical Journal, 2016
ABSTRACT We studied the ellipticity distributions of elliptical galaxies in different environments. From the ninth data release of the Sloan Digital Sky Survey, we selected galaxies with absolute -band magnitudes between −21 and −22.
Cheng-Yu Chen, Chorng-Yuan Hwang, Chung-Ming Ko   +2 more
openaire   +1 more source

Reassessing the Relationship Between Meteor Radio Afterglows and Optical Persistent Trains

Journal of Geophysical Research: Space Physics, Volume 130, Issue 9, September 2025.
Abstract Meteor radio afterglows (MRAs) and optical persistent trains (PTs) are two types of long‐lived phenomena which are occasionally observed following the occurrence of a meteor. Both phenomena are thought to be produced by intrinsic emission mechanisms; PTs have been associated with chemiluminescent reactions between meteoric metals and ...
L. E. Cordonnier, K. S. Obenberger, G. B. Taylor, J. M. Holmes, J. Dowell, D. Vida   +5 more
wiley   +1 more source

SIMULATIONS OF LARGE-SCALE GASEOUS STRUCTURES WITH SPH

Odessa Astronomical Publications, 2017
A computer programme based on the 3D SPH approach is described. Some numerical results are presented: the formation of gaseous ring around an SO galaxy due to the stripping of a gas-rich donor system.
N. Ya. Sotnikova
doaj   +1 more source

The Stellar Halos of Massive Elliptical Galaxies

, 2012
We use the Mitchell Spectrograph (formerly VIRUS-P) on the McDonald Observatory 2.7m Harlan J. Smith Telescope to search for the chemical signatures of massive elliptical galaxy assembly. The Mitchell Spectrograph is an integral-field spectrograph with a
Adams, Adams, Arimoto, Babul, Bell, Berlind, Blanc, Blanc, Bono, Bower, Brodie, Carollo, Cassata, Cassisi, Conroy, Cox, Damjanov, Dierckx, Dunkley, Eisenhardt, Faber, Finkelstein, Font, Fulbright, Gorgas, Graves, Graves, Graves, Graves, Hill, Jenny E. Greene, Jeremy D. Murphy, Jorgensen, Joshua J. Adams, Julia M. Comerford, Karl Gebhardt, Kelson, Kelson, Kriek, Larson, Miller, Murphy, Naab, Naab, Newman, Ogando, Oser, Papovich, Robaina, Robertson, Rudick, Salasnich, Schiavon, Strateva, Suh, Tal, Tantalo, Terlevich, Thomas, Trager, Tremonti, van Albada, van der Wel, van Dokkum, van Dokkum, van Dokkum, van Dokkum, Venn, White, White, Yan, Yan, Yoachim, Yoachim, York, Zhu   +75 more
core   +1 more source