FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4288080131> ?p ?o ?g. }

• W4288080131 endingPage "A123" @default.
• W4288080131 startingPage "A123" @default.
• W4288080131 abstract "Context. The detailed chemical composition of stars is important in many astrophysical fields, among which is the characterisation of exoplanetary systems. Previous studies seem to indicate an anomalous chemical pattern of the youngest stellar population in the solar vicinity that has sub-solar metal content. This can influence various observational relations linking the properties of exoplanets to the characteristics of the host stars, for example the giant planet-metallicity relation. Aims. In this framework, we aim to expand our knowledge of the chemical composition of intermediate-age stars and understand whether these peculiarities are real or related to spectroscopic analysis techniques. Methods. We analysed high-resolution optical and near-infrared spectra of intermediate-age stars (<700 Myr) that have been observed simultaneously with HARPS-N and GIANO-B spectrographs in GIARPS mode. To overcome issues related to the young ages of the stars, we applied a new spectroscopic method that uses titanium lines to derive the atmospheric parameters, in particular surface gravities and microturbulence velocity parameter. We derived abundances of C I , Na I , Mg I , Al I , Si I , Ca I , Ti I , Ti II , Cr I , Cr II , Fe I , Fe II , Ni I, and Zn I . Results. The lack of systematic trends between elemental abundances and effective temperatures validates our methods. However, we observed that the coolest stars in the sample, where T eff < 5400 K, display higher abundances for the ionised species, in particular Cr II , and for high-excitation potential C I lines. Conclusions. We found a positive correlation between the higher abundances measured of C I and Cr II and the activity index log R HK ′ . Instead, we found no correlations between the C abundances obtained from CH molecular band at 4300 Å and both effective temperatures and activity. Thus, we suggest that these are better estimates for C abundances in young and cool stars. Finally, we found an indication of an increasing abundance ratio [X/H] with the condensation temperature for HD 167389, indicating possible episodes of planet engulfment." @default.
• W4288080131 created "2022-07-28" @default.
• W4288080131 creator A5011463025 @default.
• W4288080131 creator A5017172547 @default.
• W4288080131 creator A5018122494 @default.
• W4288080131 creator A5021091966 @default.
• W4288080131 creator A5022060485 @default.
• W4288080131 creator A5030793101 @default.
• W4288080131 creator A5034048454 @default.
• W4288080131 creator A5036060615 @default.
• W4288080131 creator A5036786656 @default.
• W4288080131 creator A5039986610 @default.
• W4288080131 creator A5042677304 @default.
• W4288080131 creator A5045522063 @default.
• W4288080131 creator A5047183076 @default.
• W4288080131 creator A5047272660 @default.
• W4288080131 creator A5051052565 @default.
• W4288080131 creator A5053653018 @default.
• W4288080131 creator A5056356825 @default.
• W4288080131 creator A5058694443 @default.
• W4288080131 creator A5059755675 @default.
• W4288080131 creator A5060004128 @default.
• W4288080131 creator A5060692349 @default.
• W4288080131 creator A5068323687 @default.
• W4288080131 creator A5088260691 @default.
• W4288080131 date "2020-08-01" @default.
• W4288080131 modified "2023-10-13" @default.
• W4288080131 title "The GAPS Programme at TNG" @default.
• W4288080131 cites W1963642624 @default.
• W4288080131 cites W1973187450 @default.
• W4288080131 cites W1978678819 @default.
• W4288080131 cites W1979708474 @default.
• W4288080131 cites W1984629840 @default.
• W4288080131 cites W1998979322 @default.
• W4288080131 cites W2001755102 @default.
• W4288080131 cites W2016860913 @default.
• W4288080131 cites W2018936744 @default.
• W4288080131 cites W2021660547 @default.
• W4288080131 cites W2030013382 @default.
• W4288080131 cites W2031043816 @default.
• W4288080131 cites W2038696661 @default.
• W4288080131 cites W2038940646 @default.
• W4288080131 cites W2044183576 @default.
• W4288080131 cites W2052979728 @default.
• W4288080131 cites W2058904586 @default.
• W4288080131 cites W2059903795 @default.
• W4288080131 cites W2066293328 @default.
• W4288080131 cites W2074086027 @default.
• W4288080131 cites W2086348127 @default.
• W4288080131 cites W2095524561 @default.
• W4288080131 cites W2096471541 @default.
• W4288080131 cites W2096688555 @default.
• W4288080131 cites W2102007890 @default.
• W4288080131 cites W2104247363 @default.
• W4288080131 cites W2121591145 @default.
• W4288080131 cites W2121650431 @default.
• W4288080131 cites W2121872350 @default.
• W4288080131 cites W2127823814 @default.
• W4288080131 cites W2130536578 @default.
• W4288080131 cites W2134679506 @default.
• W4288080131 cites W2138193360 @default.
• W4288080131 cites W2151554466 @default.
• W4288080131 cites W2153135012 @default.
• W4288080131 cites W2160594185 @default.
• W4288080131 cites W2161771777 @default.
• W4288080131 cites W2164377502 @default.
• W4288080131 cites W2225034437 @default.
• W4288080131 cites W2297676747 @default.
• W4288080131 cites W2298365754 @default.
• W4288080131 cites W2520080098 @default.
• W4288080131 cites W2528232847 @default.
• W4288080131 cites W2566436739 @default.
• W4288080131 cites W2580375355 @default.
• W4288080131 cites W2588973513 @default.
• W4288080131 cites W2751588927 @default.
• W4288080131 cites W2793314902 @default.
• W4288080131 cites W2798398299 @default.
• W4288080131 cites W2899497983 @default.
• W4288080131 cites W2915187980 @default.
• W4288080131 cites W2915742521 @default.
• W4288080131 cites W2953307733 @default.
• W4288080131 cites W2963718551 @default.
• W4288080131 cites W2964299439 @default.
• W4288080131 cites W2978367381 @default.
• W4288080131 cites W2999323307 @default.
• W4288080131 cites W3000257087 @default.
• W4288080131 cites W3016338645 @default.
• W4288080131 cites W3019441970 @default.
• W4288080131 cites W3099553421 @default.
• W4288080131 cites W3100124785 @default.
• W4288080131 cites W3100538023 @default.
• W4288080131 cites W3101187304 @default.
• W4288080131 cites W3101787414 @default.
• W4288080131 cites W3101862101 @default.
• W4288080131 cites W3102404352 @default.
• W4288080131 cites W3102522801 @default.
• W4288080131 cites W3102892503 @default.
• W4288080131 cites W3103049755 @default.

• next