Feh-Duf: very high-velocity low-metallicity star with peculiar chemical abundance

Details Feh-Duf: very high-velocity low-metallicity star with peculiar chemical abundance Feh-Duf: very high-velocity low-metallicity star with peculiar chemical abundance

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010iaus..265..241d&link_type=abstract

Chemical Abundances in the Universe: Connecting First Stars to Planets, Proceedings of the International Astronomical Union, IAU

Astronomy and Astrophysics

Astronomy

Stars: Fundamental Parameters, Stars: Abundances, Stars: Chemically Peculiar, Stars: Kinematics, Stars: Population Ii

Scientific paper

We present the results of a study of the very high velocity (υrad = +448.0 ± 1.0 kms-1) low-metallicity ([Fe/H] = -1.93) star Feh-Duf ((Fehrenbach & Duflot 1981) showing peculiar chemical abundance. Using high-resolution spectrum, we showed that this star has enhanced carbon and heavy s-process element abundance ([C/Fe] = +0.58, [hs/Fe] = +0.88 dex) while the [Y/Fe] = -0.07 dex). The carbon isotopic ratio is low (12C/13C=8). We found that oxygen abundance is reduced ([O/Fe] = +0.10 dex) as compared with Galactic field stars of a similar metallicity. The evolution state of this star and its possible extragalactic origin are discussed.

Affiliated with

Also associated with

No associations

Rating

Feh-Duf: very high-velocity low-metallicity star with peculiar chemical abundance does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Feh-Duf: very high-velocity low-metallicity star with peculiar chemical abundance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feh-Duf: very high-velocity low-metallicity star with peculiar chemical abundance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-883114