Results 51 to 60 of about 267,257 (315)

Multi-line modelling in nearby galaxies: The link between dense gas and star formation in different environments [PDF]

open access: yesEPJ Web of Conferences, 2022
The J=1–0 lines of HCN and HCO+ have become the default tracers of dense molecular gas in external galaxies. To study the relation between HCN and HCO+ emission and density, we have mapped their J=3–2 lines with the ALMA Compact Array (ACA) in the nearby
Usero Antonio, García-Rodríguez Axel
doaj   +1 more source

Starbursts in Isolated Galaxies? [PDF]

open access: yesAIP Conference Proceedings, 2005
I investigated the evolution of star forming dwarf galaxies by means of a one-zone model extended for dynamical evolution. This allows for a coupling between the dynamical state of the galaxy and its internal properties like star formation activity or the thermal state of the interstellar medium (ISM). The presented work focusses on the star formation (
openaire   +3 more sources

Integrated field spectroscopy of E+A (post-starburst) galaxies with the Kyoto3DII [PDF]

open access: yes, 2008
We have performed a two-dimensional spectroscopy of three nearby E+A (post-starburst) galaxies with the Kyoto3DII integral field spectrograph. In all the cases, Hdelta absorption is stronger at the centre of the galaxies, but significantly extended in a ...
Goto, Tomotsugu   +5 more
core   +1 more source

Large turbulent reservoirs of cold molecular gas around high-redshift starburst galaxies [PDF]

open access: yesNature, 2017
Starburst galaxies at the peak of cosmic star formation are among the most extreme star-forming engines in the Universe, producing stars over about 100 million years (ref. 2).
E. Falgarone   +11 more
semanticscholar   +1 more source

Low-luminosity AGN and Normal Galaxies [PDF]

open access: yes, 2000
Low-luminosity AGN (with X-ray luminosity < 1e42 ergs/s) far outnumber ordinary AGN, and are therefore perhaps more relevant to our understanding of AGN phenomena and the relationship between AGN and host galaxies.
Ptak, A.
core   +3 more sources

The evolution of post-starburst galaxies from z=2 to 0.5 [PDF]

open access: yes, 2016
We present the evolution in the number density and stellar mass functions of photometrically selected post-starburst galaxies in the UKIDSSUltraDeep Survey,with redshifts of 0.5 10.
V. Wild   +10 more
semanticscholar   +1 more source

An Extremely Compact, Low-mass Galaxy on its Way to Quiescence at z = 5.2

open access: yesThe Astrophysical Journal Letters, 2023
We report the discovery of a low-mass z = 5.200 ± 0.002 galaxy that is in the process of ceasing its star formation. The galaxy, MACS0417-z5BBG, is multiply imaged with magnification factors ∼40 by the galaxy cluster MACS J0417.5-1154, observed as part ...
Victoria Strait   +17 more
doaj   +1 more source

Sensitivity of the combined fit of energy spectrum, shower depth distributions, and arrival directions at the Pierre Auger Observatory [PDF]

open access: yesEPJ Web of Conferences, 2023
The Pierre Auger Observatory measures several characteristics of ultra-high-energy cosmic rays (UHECRs), most importantly the energy spectrum, the distribution of maximum shower depths and the arrival directions.
Bister Teresa
doaj   +1 more source

DIRECT DETECTION OF LYMAN CONTINUUM ESCAPE FROM LOCAL STARBURST GALAXIES WITH THE COSMIC ORIGINS SPECTROGRAPH [PDF]

open access: yes, 2016
We report on the detection of Lyman continuum radiation in two nearby starburst galaxies. Tol 0440-381, Tol 1247-232, and Mrk 54 were observed with the Cosmic Origins Spectrograph on board the Hubble Space Telescope.
C. Leitherer   +3 more
semanticscholar   +1 more source

Starburst Nuclei and Cosmic-Rays Transport Mechanisms: Future Opportunities for Neutrino Astronomy and Beyond Standard Model Studies [PDF]

open access: yesEPJ Web of Conferences, 2023
Experimental observations have demonstrated a strong correlation between star-forming processes and gamma-ray luminosities, giving strong hints about the nature of the Cosmic-Rays (CRs) transport mechanisms inside Starburst Nuclei.
Ambrosone Antonio   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy