YOUNG STELLAR POPULATIONS
Realistic ionizing fluxes for young stellar populations from 0.05 to 2 ZÔ
... It is clear that the use of expanding non-LTE model atmospheres in the analysis of single and unresolved H ii re- gions is a major improvement over using static LTE models to represent hot massive stars. The empirical ...
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Radio observations confirm young stellar populations in local analogues to z ~5 Lyman break galaxies
... a young dominant stellar population, which has not yet established a strong supernova-driven synchrotron ...to stellar populations younger than 100 ...the young stellar ...
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Diverse young stellar populations in the intermediate-redshift radio galaxies 3C 213.1 and 3C 459: implications for the evolution of the host galaxies
... that young stellar populations (YSP) make a major con- tribution to the integrated optical light in both sources, contributing at least 37 and 80 per cent of the integrated B-band light in 3C ...
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The properties of the young stellar populations in powerful radio galaxies at low and intermediate redshifts
... the young stellar populations (YSPs) in the host galaxies as part of a larger project to investigate evolutionary scenarios for the active galactic nucleus (AGN) host ...the stellar ...
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Young stellar populations in type II quasars: timing the onset of star formation and nuclear activity
... the stellar populations of the host galaxies of 21 type II quasars, with the aim of understanding the sequence of events between the onset of the merger, the triggering of the associated starburst and the ...
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Young stellar populations in the Antennae galaxies
... resolution stellar + nebular templates suitable for modelling the optical spectra of high-SFR regions.!. Our goal:![r] ...
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Structure, kinematics, and ages of the young stellar populations in the Orion region
... The tendency of O and B type stars to loosely cluster in the sky was recognized at the beginning of the 20th century by the pioneering studies summarized in Blaauw (1964). At the end of the last century, the data of the ...
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A census of young stellar populations in the warm ULIRG PKS 1345+12
... Fig. 3 shows the slit positions and the apertures used for the spec- troscopic analysis. The same routine as described above was used to create simple stellar population templates of different age and reddening. ...
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SDSS IV MaNGA spatially resolved diagnostic diagrams : a proof that many galaxies are LIERs
... and stellar population indices demonstrating the lack of young stellar populations, implying that line emission follows tightly the continuum due to the underlying old stellar ...
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Reevaluating old stellar populations
... new stellar evolution pathways. In some recent work, the use of stellar models which evolve singly but while rotating at a substantial frac- tion of their break-up speed has been explored (for example, this ...
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Signatures of the r process in Ancient Stellar Populations Using Barium Abundances
... A large number of stars is needed to distinguish the chemical trend of a stellar population from star-to-star variations. We were able to obtain a large sample of stars, because we used multi-object, ...
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Herschel Hi-GAL imaging of massive young stellar objects
... We used Herschel Hi-GAL (Herschel infrared Galactic Plane survey) data to determine whether massive young stellar objects (MYSOs) are resolved at 70 µm and to study their envelope density distribution. Our ...
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Outflows from young stellar objects: the case of DG Tauri
... shocks, and/or by the turbulence generated by the scattering of the underlying jet. Before proceeding, we note that the AGN jet-driven bubbles are energy-driven, whilst stellar-driven bubbles are typically ...
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Chemistry of massive young stellar objects with a disk-like structure
... massive young stellar ob- jects (YSOs), to search for similarities or di ff erences depend- ing on physical structure and evolutionary state of the ...
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Untangling galaxy components: full spectral bulge–disc decomposition
... and stellar population properties of the individual components and how they vary with position, in order to assess their plausibility as discrete elements, and to start to reconstruct their distinct formation ...
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Thermal and hydrostatic structure of the protoplanetary nebula exposed to stellar radiation and stellar wind from the central star
... the stellar wind from solar-like stars tell us that the mass loss rates among them distribute in the range between almost equal to the rate of the present solar wind and about thirty fold larger than ...of ...
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Understanding sub-stellar populations using wide-field infrared surveys
... By accounting for the main sources of incompleteness (selection, follow-up and spatial) as well as the effects of unresolved binarity, Malmquist and Eddington bias, the number of T dwarfs in our sample is most consistent ...
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Optical spectroscopy of Arp220: the star formation history of the closest ULIRG
... from a young (0.1 Gyr) stellar population (YSP) component. However, it is notable that while the flux contribution of the YSP component in the extended regions is relatively small (40 per cent), adequate ...
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Chemical abundances in LMC stellar populations I The inner disk sample
... While the light s-process elements hereafter 1s: elements made by the s-process with atomic number lower than -45 Zr and Y, show subsolar ratios with mean abundances the heavy s-process [r] ...
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Diagnostics of a nuclear starburst: water and methanol masers
... Feedback from stars is critical to galaxy evolution in order to slow down star formation and remove baryons from the galactic disc (e.g. Hopkins, Quataert & Murray 2012). Galactic winds are one particular mechanism ...
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