Chemical changes during star formation: high- versus low-mass YSOs
Recent observational studies of high- and low-mass YSOs at (sub)millimeter and infrared wavelengths are reviewed, and chemical diagnostics of the
arxiv.orgrank this link
Refine results · kind
chemical
1,050 indexed results
Chemical composition and fundamental parameters of roAp stars
Element abundances of three roAp stars, HD 166473, HD 203932, and HD 217522, were determined using Kurucz model atmospheres with
arxiv.orgrank this link
Chemical composition of evolved stars in the open cluster M 67
High-resolution spectra of six core helium-burning `clump' stars and three giants in the open cluster M 67 have been obtained
arxiv.orgrank this link
Chemical Composition of Planetary Nebulae: The Galaxy and the Magellanic Clouds
An analysis is made of the abundances of planetary nebulae (PN) in the Galaxy (MW), the Large Magellanic Cloud (LMC)
arxiv.orgrank this link
Chemical Composition of the Intracluster Medium
Clusters of galaxies are massive enough to be considered representative samples of the Universe, and to retain all of the
arxiv.orgrank this link
Chemical Enrichment and Energetics of the ICM with Redshift
In this paper we show preliminary results concerning the chemical and energetic enrichment of the ICM by means of supernova-driven
arxiv.orgrank this link
Chemical enrichment and star formation in the Milky Way disk; II. Star formation history
A chromospheric age distribution of 552 late-type dwarfs is transformed into a star formation history by the application of scale
arxiv.orgrank this link
Chemical enrichment and star formation in the Milky Way disk; I. Sample description and chromospheric age-metallicity relation
The age-metallicity relation of the solar neighbourhood is studied using a sample of 552 late-type dwarfs. This sample was built
arxiv.orgrank this link
Chemical Enrichment from Massive Stars in Starbursts
The warm ionized gas in low-mass, metal-poor starforming galaxies is chemically homogeneous despite the prevalence of large H II regions
arxiv.orgrank this link
Chemical Enrichment from Massive Stars in Starbursts II: NGC 1569
We present a longslit optical spectrophotometric survey in the irregular "post-starburst" galaxy NGC 1569 to search for chemical gradients and
arxiv.orgrank this link
Chemical equilibration due to heavy Hagedorn states
A scenario of heavy resonances, called massive Hagedorn states, is proposed which exhibits a fast ($t\approx 1$ fm/c) chemical equilibration
arxiv.orgrank this link
Chemical Evolution along the Hubble sequence
We show a grid of multiphase models whose results are valid for any spiral galaxy, using as input the luminosity
arxiv.orgrank this link
Chemical evolution and abundance gradients in the Milky Way
We extend our model of chemical evolution that successfully account for the main observables in the solar neighborhood (Alibes, Labay
arxiv.orgrank this link
Chemical Evolution and Starbursts
The first part of this paper deals with the impact of nonsolar and - for late-type, dwarf, and high redshift
arxiv.orgrank this link
Chemical Evolution in Hierarchical Clustering Scenarios
We present first results of an implementation of chemical evolution in a cosmological hydrodynamical code, focusing the analysis on the
arxiv.orgrank this link
Chemical Evolution in Omega Centauri
The globular cluster Omega Centauri displays evidence of a complex star formation history and peculiar internal chemical evolution, setting it
arxiv.orgrank this link
Chemical Evolution in the Carina Dwarf Spheroidal
We present metallicities for 487 red giants in the Carina dwarf spheroidal (dSph) galaxy that were obtained from FLAMES low-resolution
arxiv.orgrank this link
Chemical evolution in the environment of intermediate mass young stellar objects: NGC7129--FIRS2 and LkH$α$234
We have carried out a molecular survey of the Class 0 IM protostar NGC 7129 -- FIRS 2 (hereafter FIRS
arxiv.orgrank this link
Chemical Evolution models of Local Group galaxies
Status quo and perspectives of standard chemical evolution models of Local Group galaxies are summarized, discussing what we have learnt
arxiv.orgrank this link
Chemical Evolution of Clusters of Galaxies
The high metallicity of the intra-cluster medium (ICM) is generally interpreted on the base of the galactic wind scenario for
arxiv.orgrank this link
Chemical Evolution of CNO abundances
New low and intermediate star yields calculated by Buell (1997) are evaluated by using them in a Galactic Chemical Evolution
arxiv.orgrank this link
Chemical Evolution of Dwarf Irregular Galaxies - chemodynamical models and the effect of gas infall
Because of their low gravitational energies dwarf galaxies are greatly exposed to energetical influences by the interstellar medium, like e.g.
arxiv.orgrank this link
Chemical Evolution of Elliptical Galaxies as a Constraint to Galaxy Formation Scenarios
Elliptical galaxies are the main contributors to the chemical enrichment of the intracluster and intergalactic medium; understanding how they form
arxiv.orgrank this link
Chemical Evolution of Galaxies
Chemical abundances provide important clues to the evolution of galaxies. Ionized nebulae are one of the main sources of chemical
arxiv.orgrank this link