Results 61 to 70 of about 269,049 (315)

Massive post-starburst galaxies at z > 1 are compact proto-spheroids [PDF]

open access: yes, 2017
We investigate the relationship between the quenching of star formation and the structural transformation of massive galaxies, using a large sample of photometrically-selected poststarburst galaxies in the UKIDSS UDS field.
O. Almaini   +8 more
semanticscholar   +1 more source

Methods for identifying high‐redshift galaxy cluster candidates

open access: yesAstronomische Nachrichten, Volume 340, Issue 7, Page 618-621, August 2019., 2019
Abstract Recent theories linked long gamma ray bursts (GRBs) to galaxies with rapid star formation or starburst; thus, we expect that long GRBs (LGRBs) are more frequent in midcluster galaxies where mergers and tidal interactions between gas‐rich galaxies are more likely to occur. Yet there is no galaxy cluster known to be associated with LGRBs.
Sandor Pinter   +5 more
wiley   +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

Current Star Formation in Post-Starburst Galaxies? [PDF]

open access: yes, 2001
Radio continuum observations are a probe of star formation in galaxies, and are unaffected by dust extinction. Observations of the distant rich cluster Cl 0939+4713 have detected radio galaxies classified as post-starburst (``k+a'') on the basis of their
Miller, Neal A., Owen, Frazer N.
core   +4 more sources

The History of Starburst Galaxies [PDF]

open access: yes, 2001
Dusty galaxies with luminosities in excess of 10^11 solar luminosities have been detected out to redshifts of about unity by the Infrared Space Observatory (ISO), and to higher redshifts using millimetre(mm)- and submm-wave cameras on ground-based telescopes.
openaire   +3 more sources

Estimation of the detected background by the future gamma ray transient mission CAMELOT

open access: yesAstronomische Nachrichten, Volume 340, Issue 7, Page 666-673, August 2019., 2019
Abstract This study presents a background estimation for the CubeSats Applied for MEasuring and LOcalising Transients (CAMELOT), which is a proposed fleet of nanosatellites for the all‐sky monitoring and timing‐based localization of gamma ray transients with precise localization capability at low Earth orbits.
Jakub Řípa   +20 more
wiley   +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

Gasdynamics and Starbursts in Interacting Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1999
The onset of gaseous inflows and central activity in interacting galaxies is driven largely by induced bars in the host galaxies. The stability of galaxies against growing bar modes is a direct function of their structural properties — galaxies with central bulges or low disk surface densities are more stable against central starbursts than are ...
openaire   +4 more sources

The Colors and Sizes of Recently Quenched Galaxies: A Result of Compact Starburst before Quenching [PDF]

open access: yesAstrophysical Journal, 2019
We analyze the colors and sizes of 32 quiescent (UVJ-selected) galaxies with strong Balmer absorption (EW(Hδ) ≥ 4 Å) at z ∼ 0.8 drawn from DR2 of the LEGA-C survey to test the hypothesis that these galaxies experienced compact, central starbursts before ...
Po-Feng 柏鋒 Wu 吳   +13 more
semanticscholar   +1 more source

Star Formation Law at Sub‐kpc Scale in the Elliptical Galaxy Centaurus A as Seen by ALMA

open access: yesAdvances in Astronomy, Volume 2017, Issue 1, 2017., 2017
We present an extensive analysis of the relationship between star formation rate surface density (∑SFR) and molecular gas surface density (∑H2) at sub‐kpc scale in the elliptical galaxy Centaurus A (also known as NGC 5128) at the distance 3.8 Mpc. 12CO (J = 2‐1) data from Atacama Large Millimetre/Sub‐Millimetre Array SV data with very high resolution ...
Jazeel H. Azeez   +4 more
wiley   +1 more source

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