metal-poor
LAMPSS: Discovery of Metal Poor Stars in the Galactic Halo with the CaHK filter on CFHT MegaCam
... Several metal-poor star studies have been ...most metal-poor stars found, Pristine ...tify metal-poor stars, such as SDSS J102915+172927, the Caffau dwarf star, with [Fe/H] = ...
16
The oldest and most metal-poor stars in the APOSTLE Local Group simulations
... for metal-free massive stars. For instance, the most iron- poor star, SMSS ...extremely metal-poor stars ([Fe/H] < −3), it seems that their abundance patterns vary with environment in the ...
13
The Oldest Stars in the Galaxy – Searching for Metal-Poor Stars in the Galactic Bulge
... for metal-poor ...most metal-rich component of the Milky Way, containing some of the most metal-rich stars known, and with an MDF ranging from [Fe/H]' ...find metal-poor bulge ...
180
Infrared colours and inferred masses of metal poor giant stars in the Keplerfield
... show the relation between WISE colour and APOGEE metal- licities for 7,432 stars that meet our photometric giant star selection. There are another 487 (6%) stars that we identify as likely giant stars (from ...
9
Insights into the chemical composition of the metal poor Milky Way halo globular cluster NGC 6426
... more metal-poor (MP, blue, stars 14853 and 736) and (mildly) more metal-rich population (MR, stars 5659 and 2314), when elaborating on their distinct ...
14
Single metal-poor ultra compact dwarf galaxy at one kiloparsec distance from the low-mass elliptical galaxy FCC 47
... satellite, this dwarf galaxy must have had a smaller number of GCs than FCC 47 has today and thus it is di ffi cult to reconcile the brightness of the UCD with a much smaller GC system of such a hypothetical progenitor ...
18
Alves Cruz, Monique (2012): Nucleosynthesis in extremely metal-poor and zero metallicity stars. Dissertation, LMU München: Fakultät für Physik
... We have compared our models with the hyper metal-poor (HMP) stars HE1327-2326 and HE0107-5240. It is clear that the self-pollution scenario cannot explain the abundance patterns observed in HE0107-5240 ...
170
Something borrowed, something blue:the nature of blue metal poor stars inferred from their colours and chemical abundances
... lie above this cut in 2/3 of the cases. This cut can help classify stars which lack radial velocities from follow-up observations. We then trace the origin of two BMP stars from the photometric sample by conducting a ...
24
The discovery, abundances and [Fe/H]NB392 distributions of metal poor stars in the halo of the Milky Way
... Population III stars represent the key to understanding the history of the Universe, and provide a unique opportu- nity to look back into the unknown and gain knowledge of the past. WARP are somewhat hopeful that this ...
18
Observations of binary stars with the differential speckle survey instrument. V. Toward an empirical metal-poor mass-luminosity relation
... of metal-poor stars, the Gemini North telescope was used on two occasions to take speckle imaging data of a sample of known spectroscopic binary stars and other nearby stars in order to search for and ...
14
Astrophysical site(s) of r-process elements in galactic chemodynamical evolution model
... Abstract. Astrophysical site(s) of rapid neutron-capture process (r-process) is (are) not identified yet. Although core-collapse supernovae have been regarded as one of the pos- sible candidates of the astrophysical site ...
7
Towards the big picture of the Milky Way bulge
... Figure 2. Left panel: [/Fe] trends as a function of [Fe/H] in 3 bulge fields located along the minor axis, b = −4, − 6 and − 12. Best fit trends are shown for both [Fe/H] ranges, a metal-poor between − 1.2 ...
5
Influence of Supernova SN Ia Rate and the Early Star Formation Rate on the Galactic Chemical Evolution
... the metal-poor dwarf stars in the solar neighborhood fa- vors the SN Ia formulation with a prompt SN Ia and an enhanced star formation rate in the earliest epoch of the ...
9
The Effects of Edaphic and Climatic Factors on Secondary Lichen Chemistry: A Case Study Using Saxicolous Lichens
... in metal-poor conditions on quartzite (gyrophoric, stictic as well as lobaric, psoromic and rhizocarpic acids) may promote metal supply to ...in metal-rich environments but they are contained ...
18
The chemical evolution of the Galactic Bulge seen through micro-lensing events
... a metal-poor old bulge, and another with super-solar metallicities that can be associated with a younger population (compare also the discussion of the connection between the stellar kinematics and their ...
5
Observational constraints on the radial mixing of stars in the galactic disk
... young metal-rich or metal-poor stars, not yet submitted to radial mixing, would show systematic differences in (Rp, Ra) distribution, while old stars should ...young metal-rich (blue squares) ...
6
A survey for stellar relics of galaxy formation in the large Magellanic cloud
... extremely metal-poor stars in the Large Magellanic Cloud (LMC) based on photometric selection of red ...which metal-poor stars would exhibit greater ...likely metal-poor ...
168
Poverty and inequality in urban Sudan : policies, institutions and governance
... The methods used for data collection and analysis were participatory, in line with the framework that seeks to understand the opinions of members of the community, and especially poorer men and women, in matters ...
291
Faint (and bright) variable stars in the satellites of the Milky Way
... Abstract. I describe two ongoing projects related with variable stars in the satellites of the Milky Way. In the first project, we are searching for dwarf Cepheid stars (a.k.a δ Scuti and/or SX Phe) in some of the ...
5
MACROCYCLIC METAL COMPLEXES: FROM STRUCTURE TO ACTIVITY
... a metal ion almost systematically increases the activity or contributes to mitigate the side effects of the organic parent compounds ...a metal complex rather than the parent ligand and some side effects ...
9