Results 21 to 30 of about 5,989,239 (352)
STAR FORMATION AT Z = 2.481 IN THE LENSED GALAXY SDSS J1110+6459: STAR FORMATION DOWN TO 30 PARSEC SCALES. [PDF]
Astrophys J Lett, 2017 We present measurements of the surface density of star formation, the star-forming clump luminosity function, and the clump size distribution function, for the lensed galaxy SGAS J111020.0+645950.8 at a redshift of z = 2.481.
Johnson TL +9 more
europepmc +3 more sources
The Astrophysical Journal Letters, 2023 We present a U-corrected Pb–Pb age of 4566.19 ± 0.20 Ma (1.11 ± 0.26 Myr after t _0 ) for the moderately volatile element rich, andesitic meteorite Erg Chech 002 (EC002). Our Al–Mg isochron defines a ^26 Al/ ^27 Al initial ratio of (8.65 ± 0.09) × 10 ^−6
J. N. Connelly +5 more
doaj +1 more source
The Astrophysical Journal, 2023 In protostellar cores, sulfur species are effective probes for the energetic environments, such as shocked regions. With the majority of sulfur depleted on dust grains, sulfur-bearing molecules could be liberated back to gas phase by shocks associated ...
Ziwei E. Zhang +7 more
doaj +1 more source
Modeling Two First Hydrostatic Core Candidates Barnard 1b-N and 1b-S
The Astrophysical Journal, 2023 A first hydrostatic core (FHC) is proposed to form after the initial collapse of a prestellar core, as a seed of a Class 0 protostar. FHCs are difficult to observe because they are small, compact, embedded, and short lived.
Hao-Yuan Duan +3 more
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Triple Spiral Arms of a Triple Protostar System Imaged in Molecular Lines
The Astrophysical Journal, 2023 Most stars form in multiple-star systems. For a better understanding of their formation processes, it is important to resolve the individual protostellar components and the surrounding envelope and disk material at the earliest possible formation epoch ...
Jeong-Eun Lee +11 more
doaj +1 more source
STAR FORMATION IN GALAXIES ALONG THE HUBBLE SEQUENCE [PDF]
, 1998 Observations of star formation rates (SFRs) in galaxies provide vital clues to the physical nature of the Hubble sequence and are key probes of the evolutionary histories of galaxies.
R. Kennicutt, Jr.
semanticscholar +1 more source
One, Two, Three ... An Explosive Outflow in IRAS 12326-6245 Revealed by ALMA
The Astrophysical Journal Letters, 2023 In the last years there has been a substantial increase in the number of the reported massive and luminous star-forming regions with related explosive outflows thanks to the superb sensitivity and angular resolution provided by the new radio, infrared ...
Luis A. Zapata +8 more
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Starburst99: Synthesis Models for Galaxies with Active Star Formation [PDF]
, 1999 Starburst99 is a comprehensive set of model predictions for spectrophotometric and related properties of galaxies with active star formation. The models are an improved and extended version of the data set previously published by Leitherer & Heckman.
C. Leitherer +8 more
semanticscholar +1 more source
The effect of the metallicity-specific star formation history on double compact object mergers [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We investigate the impact of uncertainty in the metallicity-specific star formation rate over cosmic time on predictions of the rates and masses of double compact object mergers observable through gravitational waves.
C. Neijssel +9 more
semanticscholar +1 more source
Young Stellar Object Candidates in IC 417
The Astronomical Journal, 2023 IC 417 is in the Galactic plane, and likely part of the Aur OB2 association; it is ∼2 kpc away. Stock 8 is one of the densest cluster constituents; off of it to the east, there is a “nebulous stream” (NS) that is dramatic in the infrared (IR).
L. M. Rebull +14 more
doaj +1 more source