Results 31 to 40 of about 1,111,126 (357)

The Effect of f(R, T) Modified Gravity on the Mass and Radius of Pulsar HerX1

open access: yesThe Astrophysical Journal, 2023
Millisecond pulsars are the perfect testable to examine potential matter-geometry coupling and its physical consequences in the context of the recent Neutron Star Interior Composition Explorer discoveries. We apply the field equations of modified gravity,
G. G. L. Nashed
doaj   +1 more source

Star Formation in the LMC: Gravitational Instability and Dynamical Triggering [PDF]

open access: yes, 2007
Evidence for triggered star formation is difficult to establish because energy feedback from massive stars tend to erase the interstellar conditions that led to the star formation.
Chao-Chin Yang   +4 more
core   +3 more sources

Star Formation in the Ultraviolet [PDF]

open access: yesGalaxies, 2020
With the launch of JWST and the upcoming installation of extremely large telescopes, the first galaxies in our Universe will finally be revealed. Their light will be dominated by massive stars, which peak in in the ultra-violet (UV) part of the electromagnetic spectrum. Star formation is the key driver of the evolution of our Universe.
openaire   +4 more sources

The Origin of Star Formation in Early-type Galaxies Inferred from Spatially Resolved Spectroscopy

open access: yesThe Astrophysical Journal, 2023
We investigate the origin of star formation activity in early-type galaxies with current star formation using spatially resolved spectroscopic data from the Mapping Nearby Galaxies at Apache Point Observatory in the Sloan Digital Sky Survey (SDSS).
Yun Hee Lee   +4 more
doaj   +1 more source

The Spatial Extent and Distribution of Star Formation in 3D-HST Mergers at z~1.5 [PDF]

open access: yes, 2013
We present an analysis of the spatial distribution of star formation in a sample of 60 visually identified galaxy merger candidates at z>1. Our sample, drawn from the 3D-HST survey, is flux-limited and was selected to have high star formation rates based
Brammer, Gabriel B.   +16 more
core   +4 more sources

Runaway stars masquerading as star formation in galactic outskirts [PDF]

open access: yesMNRAS, 502, L29 (2021), 2020
In the outskirts of nearby spiral galaxies, star formation is observed in extremely low gas surface densities. Star formation in these regions, where the interstellar medium is dominated by diffuse atomic hydrogen, is difficult to explain with classic star formation theories.
arxiv   +1 more source

Early-forming Massive Stars Suppress Star Formation and Hierarchical Cluster Assembly

open access: yesThe Astrophysical Journal, 2023
Feedback from massive stars plays an important role in the formation of star clusters. Whether a very massive star is born early or late in the cluster formation timeline has profound implications for the star cluster formation and assembly processes. We
Sean C. Lewis   +10 more
doaj   +1 more source

Multi-wavelength study of Galactic star-forming regions with near-infrared instruments on 2 - 4 meter class Indian telescopes [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
We present a brief description of the activities of the infrared astronomy group of Tata Institute of Fundamental Research with special emphasis on the near-infrared instrumentation for star formation studies using 2 - 4-meter class Indian ground-based ...
DEVENDRA K. OJHA
doaj   +1 more source

Aromatic Features in AGN: Star-Forming Infrared Luminosity Function of AGN Host Galaxies [PDF]

open access: yes, 2007
We describe observations of aromatic features at 7.7 and 11.3 um in AGN of three types including PG, 2MASS and 3CR objects. The feature has been demonstrated to originate predominantly from star formation.
Antonucci R.   +22 more
core   +2 more sources

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