MOLYBDENUM AND RUTHENIUM ABUNDANCES IN COOL STARS OF THE GALACTIC DISC

Journal Title: Odessa Astronomical Publications - Year 2017, Vol 30, Issue

Abstract

We revise the molybdenum and ruthenium abundances in FGK stars with metallicities ranging from −1.0 < [Fe/H] < +0.3. The observed stars belong to the substructures of the Galaxy. The observations were conducted using the 1.93 m telescope at Observatoire de Haute-Provence (OHP, France) equipped with the echelle type spectrographs ELODIE and SOPHIE. The results are based on analyses of spectra that have a typical S/N ~ 100-300 and a resolution of 42 000. These estimates were obtained using synthetic spectra computed with LTE model atmosphere.

Authors and Affiliations

T. I. Gorbaneva, T. V. Mishenina

Keywords

Related Articles

ON THE DIGITISATION OF ODESSA COLLECTION OF ASTRONOMICAL NEGATIVES. EXAMINATION OF THE EPSON PERFECTION V700 PHOTO SCANNER

This study was aimed to estimate the precision of the selected plate processing method and test the accuracy of the Epson Perfection V700 Photo scanner used to digitize astroplates from the Odessa Astronomical Observator...

THE CURRENT STATE OF DATA TRANSMISSION CHANNELS FROM PUSHCHINO TO MOSCOW AND PERSPECTIVES

Since the work of a unique space radio telescope in the international VLBI project ”Radioastron” extended to 2017 the transmission and storage of large volumes of scientific and telemetry data obtained during the experim...

UNIVERSALITY IN MAGNETOEMISSION OF COMPACT ASTROPHYSICAL OBJECTS

Magnetodynamics of inhomogeneous crusty nuclear matter is considered accounting for quantum fluctuations and ferromagnetic coupling. We show that anomalies in nuclide magnetic moments give rise to erratic jumps in magnet...

THE CHANGE INDICES OF SOLAR AND GEOMAGNETIC ACTIVITY AND THEIR INFLUENCE ON THE DINAMICS OF DRAG OF ARTIFICIAL SATELLITE

The time-frequency and multiple regression analysis of the orbital parameter characterizing the drag of satellites on circular and elliptical orbits with different perigees and orbital inclinations in the atmosphere of t...

THE DETERMINATION OF THE MORPHOLOGICAL TYPES OF GALAXY CLUSTERS USING CLUSTER CARTOGRAPHY

We discuss the possibility of using the Cluster Cartography set for the determined the morphological types of galaxy clusters. The applied morphological scheme was proposed by Panko (2013). The morphological types are de...

Download PDF file
  • EP ID EP348924
  • DOI 10.18524/1810-4215.2017.30.114274
  • Views 101
  • Downloads 0

How To Cite

T. I. Gorbaneva, T. V. Mishenina (2017). MOLYBDENUM AND RUTHENIUM ABUNDANCES IN COOL STARS OF THE GALACTIC DISC. Odessa Astronomical Publications, 30(), 78-84. https://europub.co.uk/articles/-A-348924