Results 61 to 70 of about 10,243 (231)

Dwarf and Intermediate-mass Galaxies in MaNGA: Evidence for Different Evolutionary Trends

open access: yesThe Astrophysical Journal
We investigate the interplay between morphology, specific star formation rate (sSFR), and local environment using a sample of 7408 galaxies from the fourth-generation Sloan Digital Sky Survey Mapping Nearby Galaxies at Apache Point Observatory survey ...
Chandan Watts   +2 more
doaj   +1 more source

Tidal Dwarf Galaxies and Missing Baryons

open access: yesAdvances in Astronomy, 2010
Tidal dwarf galaxies form during the interaction, collision, or merger of massive spiral galaxies. They can resemble “normal” dwarf galaxies in terms of mass, size, and become dwarf satellites orbiting around their massive progenitor.
Frederic Bournaud
doaj   +1 more source

A Comparison of Outflow Properties in AGN Dwarfs versus Star-forming Dwarfs

open access: yesThe Astrophysical Journal, 2023
Feedback likely plays a crucial role in resolving discrepancies between observations and theoretical predictions of dwarf galaxy properties. Stellar feedback was once believed to be sufficient to explain these discrepancies, but it has thus far failed to
Archana Aravindan   +7 more
doaj   +1 more source

Repeating Nuclear Transients From Repeating Partial Tidal Disruption Events

open access: yesAstronomische Nachrichten, Volume 347, Issue 5, June 2026.
ABSTRACT Extragalactic nuclear transients that exhibit repeating outbursts can be modeled as the repeated dynamical interaction between bound stars and supermassive black holes (SMBHs). A subset of these transients, with recurrence timescales of months‐to‐years, have been explained as accretion flares from the repeated tidal stripping of a star by an ...
Ananya Bandopadhyay   +4 more
wiley   +1 more source

The formation of ultra-compact dwarf galaxies and nucleated dwarf galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2008
Ultra-compact dwarf galaxies (UCDs) have similar properties as massive globular clusters or the nuclei of nucleated galaxies. Recent observations suggesting a high dark matter content and a steep spatial distribution within groups and clusters provide new clues as to their origins.
Goerdt, T   +5 more
openaire   +3 more sources

The Pristine dwarf galaxy survey – IV. Probing the outskirts of the dwarf galaxy Boötes I

open access: yesMonthly Notices of the Royal Astronomical Society, 2022
ABSTRACT We present a new spectroscopic study of the dwarf galaxy Boötes I (Boo I) with data from the Anglo-Australian Telescope and its AAOmega spectrograph together with the Two Degree Field multi-object system. We observed 36 high-probability Boo I stars selected using Gaia Early Data Release 3 proper motions and photometric ...
Nicolas Longeard   +14 more
openaire   +6 more sources

Arbuscular mycorrhizal fungal community abundance, functions, and symbiotic interactions revealed by root metatranscriptomes

open access: yesiMetaOmics, Volume 3, Issue 2, June 2026.
Paradigm shift: PCR‐free methods reveal 6–15‐fold higher arbuscular mycorrhizal (AM) fungal abundance than metabarcoding, exposing systematic underestimation across decades of research. Predictive power: AM fungal abundance serves as a community‐level trait that predicts crop yield under drought conditions.
Peilin Chen, John W. Taylor, Cheng Gao
wiley   +1 more source

Discovering Dwarf Galaxies Around Low Mass Galaxies [PDF]

open access: yes, 2023
The goal of this project is to discover satellite dwarf galaxies around low mass galaxies. These dwarf galaxies are important to study because a large portion of the galaxies\u27 mass is made up of dark matter.
Farnell, Bo, Saraisky, Madeleine
core  

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

open access: yesSystems Research and Behavioral Science, Volume 43, Issue 3, Page 1212-1228, May/June 2026.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

Simulations of the formation and evolution of dwarf galaxies [PDF]

open access: yes, 2009
We present models of the formation and evolution of isolated dwarf galaxies. The models follow the evolution of an initially homogeneous gas cloud collapsing in a pre-existing dark-matter halo.
Dejonghe, Herwig   +5 more
core   +1 more source

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