The Hobby-Eberly Telescope Chemical Abundances of Stars in the Halo (CASH) Project III. Abundance Analysis of Three Bright Hamburg/ESO Survey Stars

Bibcode
2008ASPC..393..187D
Davies, L. A.; Frebel, A.; Cowan, J. J.; Allende Prieto, C.; Sneden, C.
Bibliographical reference

New Horizons in Astronomy: Frank N. Bash Symposium 2007 ASP Conference Series, Vol. 393, proceedings of the conference held 14-16 October 2007 at the University of Texas, Austin, Texas, USA. Edited by Anna Frebel, Justyn R. Maund, Juntai Shen, and Michael H. Siegel. San Francisco: Astronomical Society of the Pacific, 2008., p.187

Advertised on:
8
2008
Number of authors
5
IAC number of authors
0
Citations
10
Refereed citations
10
Description
We present an abundance analysis of three newly discovered stars from the Hamburg/ESO survey for which HET observations have been obtained as part of the CASH project. Light elemental abundances of all three stars agree with those of other metal-poor stars. This means that they likely formed from well-mixed gas. Upper limits on the heavier neutron-capture abundances have not eliminated the possibility that these stars are r-process enhanced. However, the measured barium abundances are rather low.
Type
Non-refereed

It may interest you

  • Non-refereed
    The TESS TTV Follow-up Program: Revealing Volatile-Rich Terrestrial Planets Around M Stars
    Models predict that water-rich planets may be common around low-mass stars, but definitive evidence for the existence of water worlds has remained elusive. Recent JWST observations of sub-Neptune sized planets orbiting nearby M dwarfs found atmospheres enriched in CH4, CO2 and H2O, but the enrichment mechanism is debated. To answer this question
    Greklek-McKeon, Michael et al.

    Advertised on:

    7
    2024
    Bibcode
    2024tsc3.confE..21G
    Citations
    0
  • Non-refereed
    The instrumentation plan of the 10.4m GTC telescope
    The 10.4m Gran Telescopio Canarias (GTC) was designed to be a versatile telescope, able to serve a wide scientific community. To this aim, various focal stations have been equipped, including a Cassegrain, two Nasmyth foci, and four folded-Cassegrain stations. This allows an ambitious instrumentation plan to be developed. We present the latest
    Corradi, Romano L. M. et al.

    Advertised on:

    7
    2024
    Bibcode
    2024SPIE13096E..0HC
    Citations
    0
  • Non-refereed
    Design and fabrication of fold mirror (M3) system for New Robotic Telescope
    The New Robotic Telescope (NRT) is an autonomous telescope that can operate multiple instruments at the Cassegrain focal station and the straight-through port. The optical beam is directed to the ports by a fold mirror subsystem in the focal station assembly. The fold mirror is elliptical in shape, manufactured by Instituto Nazionale di Astrofisica
    Ranjbar, Ali et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13094E..2HR
    Citations
    0