Results 91 to 100 of about 180,573 (206)

Galaxy and Mass Assembly (GAMA). The Properties of Quasar Host Galaxies: Star Formation Histories and Stellar Populations

open access: yesThe Astrophysical Journal
We investigated the star formation history and stellar populations of a sample of 205 Type I quasar host galaxies (0.1 < z < 0.35) and compared them with normal (nonactive) galaxies of the same mass and redshift within the volume of the Galaxy and Mass ...
Maria B. Stone   +7 more
doaj   +1 more source

Recent trends in teaching Astronomy

open access: yes, 1996
The purpose of the Department of Physics's close association with the Gothard Observatory is to provide a foundation in basic astronomy and astrophysics during 3 semesters in Berzsenyi Daniel Teacher Training College for future Hungarian Elementary ...
Molnár, Laszlo, Vincze, Ildiko J.
core   +1 more source

Astronomy Education Research Down Under [PDF]

open access: yes, 2005
A review of research conducted in Australasia into students' concept development in astronomy identifies a number of learning difficulties pertinent to astronomy, such as the lack of prior knowledge, intuitive or naive beliefs, juxtaposition and frames ...
Ginns, Ian S.   +3 more
core  

Globular Cluster Counts around 700 Nearby Galaxies

open access: yesThe Astrophysical Journal
Empirically, the total number (or total mass) of globular clusters (GCs) bound in a single galactic system correlates with the virial mass of the system. The form of this relation and its intrinsic scatter are potentially valuable constraints on theories
Minh Ngoc Le, Andrew P. Cooper
doaj   +1 more source

A Comprehensive Characterization of Galaxy-cool CGM Connections at z < 0.4 with DESI Year 1 Data

open access: yesThe Astrophysical Journal
We investigate the relationships between the cool circumgalactic medium (CGM), traced by Ca ii absorption lines, and galaxy properties at z  
Yu Voon Ng   +43 more
doaj   +1 more source

Ultracompact extragalactic radio sources at 86GHz

open access: yes, 2019
VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'Global millimeter VLBI array survey of ultracompact extragalactic radio sources at 86 GHz.' (bibcode: 2019A&A...622A ...
Ros, Eduardo   +23 more
core   +1 more source

Tracing the Cosmic Evolution of the Cool Circumgalactic Medium of Luminous Red Galaxies with DESI Year 1 Data

open access: yesThe Astrophysical Journal
We investigate the properties of the cool circumgalactic medium (CGM) of massive galaxies and their cosmic evolution. By using the year 1 data set of luminous red galaxies (LRGs) and QSOs from the Dark Energy Spectroscopic Instrument survey, we construct
Yu-Ling Chang   +46 more
doaj   +1 more source

Research on teaching astronomy in the planetarium

open access: yes, 2017
From a noted specialist in astronomy education and outreach, this Brief provides an overview of the most influential discipline-based science education research literature now guiding contemporary astronomy teaching.
Tatge, Coty B   +5 more
core   +1 more source

CHILES. IX. Observational and Simulated H i Content and Star Formation of Blue Galaxies in Different Cosmic Web Environments

open access: yesThe Astrophysical Journal
We examine the redshift evolution of the relationship between the neutral atomic hydrogen (H i ) content and star formation properties of blue galaxies, along with their location in the cosmic web. Using the COSMOS H i Large Extragalactic Survey (CHILES)
Nicholas M. Luber   +17 more
doaj   +1 more source

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