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Red giants and yellow stragglers in the young open cluster NGC 2447. / da Silveira, M. D.; Pereira, C. B.; Drake, N. A.

In: Monthly Notices of the Royal Astronomical Society, Vol. 476, No. 4, 01.06.2018, p. 4907-4931.

Research output: Contribution to journal › Article › peer-review

Harvard

da Silveira, MD, Pereira, CB & Drake, NA 2018, 'Red giants and yellow stragglers in the young open cluster NGC 2447', Monthly Notices of the Royal Astronomical Society, vol. 476, no. 4, pp. 4907-4931. https://doi.org/10.1093/mnras/sty265

APA

da Silveira, M. D., Pereira, C. B., & Drake, N. A. (2018). Red giants and yellow stragglers in the young open cluster NGC 2447. Monthly Notices of the Royal Astronomical Society, 476(4), 4907-4931. https://doi.org/10.1093/mnras/sty265

Vancouver

da Silveira MD, Pereira CB, Drake NA. Red giants and yellow stragglers in the young open cluster NGC 2447. Monthly Notices of the Royal Astronomical Society. 2018 Jun 1;476(4):4907-4931. https://doi.org/10.1093/mnras/sty265

Author

da Silveira, M. D. ; Pereira, C. B. ; Drake, N. A. / Red giants and yellow stragglers in the young open cluster NGC 2447. In: Monthly Notices of the Royal Astronomical Society. 2018 ; Vol. 476, No. 4. pp. 4907-4931.

BibTeX

@article{167dd37cea094416aa1942ab0eaf2673,
title = "Red giants and yellow stragglers in the young open cluster NGC 2447",
abstract = "In this work we analysed, using high-resolution spectroscopy, a sample of 12 single and 4 spectroscopic binary stars of the open cluster NGC 2447. For the single stars, we obtained atmospheric parameters and chemical abundances of Li, C, N, O, Na, Mg, Al, Ca, Si, Ti, Ni, Cr, Y, Zr, La, Ce, Nd, Eu. Rotational velocities were obtained for all the stars. The abundances of the light elements and Eu and the rotational velocities were derived using spectral synthesis technique. We obtained a mean metallicity of [Fe/H] = -0.17 ± 0.05. We found that the abundances of all elements are similar to field giants and/or giants of open clusters, even for the s-process elements, which are enhanced as in other young open clusters. We show that the spectroscopic binaries NGC 2447-26, 38, and 42 are yellow-straggler stars, of which the primary is a giant star and the secondary a main-sequence A-type star.",
keywords = "Open clusters and associations: individual: NGC 2447, Stars: abundances, Stars: evolution, Stars: fundamental parameters, open clusters and associations: individual: NGC 2447, stars: evolution, GALACTIC DISK, LITHIUM ABUNDANCES, METAL-POOR STARS, COMPREHENSIVE ABUNDANCE ANALYSIS, stars: abundances, NEUTRON-CAPTURE ELEMENTS, CHEMICAL-COMPOSITION, ISOTOPE RATIOS, MODEL ATMOSPHERES, stars: fundamental parameters, LABORATORY TRANSITION-PROBABILITIES, RADIAL-VELOCITIES",
author = "{da Silveira}, {M. D.} and Pereira, {C. B.} and Drake, {N. A.}",
year = "2018",
month = jun,
day = "1",
doi = "10.1093/mnras/sty265",
language = "English",
volume = "476",
pages = "4907--4931",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Wiley-Blackwell",
number = "4",

}

RIS

TY - JOUR

T1 - Red giants and yellow stragglers in the young open cluster NGC 2447

AU - da Silveira, M. D.

AU - Pereira, C. B.

AU - Drake, N. A.

PY - 2018/6/1

Y1 - 2018/6/1

N2 - In this work we analysed, using high-resolution spectroscopy, a sample of 12 single and 4 spectroscopic binary stars of the open cluster NGC 2447. For the single stars, we obtained atmospheric parameters and chemical abundances of Li, C, N, O, Na, Mg, Al, Ca, Si, Ti, Ni, Cr, Y, Zr, La, Ce, Nd, Eu. Rotational velocities were obtained for all the stars. The abundances of the light elements and Eu and the rotational velocities were derived using spectral synthesis technique. We obtained a mean metallicity of [Fe/H] = -0.17 ± 0.05. We found that the abundances of all elements are similar to field giants and/or giants of open clusters, even for the s-process elements, which are enhanced as in other young open clusters. We show that the spectroscopic binaries NGC 2447-26, 38, and 42 are yellow-straggler stars, of which the primary is a giant star and the secondary a main-sequence A-type star.

AB - In this work we analysed, using high-resolution spectroscopy, a sample of 12 single and 4 spectroscopic binary stars of the open cluster NGC 2447. For the single stars, we obtained atmospheric parameters and chemical abundances of Li, C, N, O, Na, Mg, Al, Ca, Si, Ti, Ni, Cr, Y, Zr, La, Ce, Nd, Eu. Rotational velocities were obtained for all the stars. The abundances of the light elements and Eu and the rotational velocities were derived using spectral synthesis technique. We obtained a mean metallicity of [Fe/H] = -0.17 ± 0.05. We found that the abundances of all elements are similar to field giants and/or giants of open clusters, even for the s-process elements, which are enhanced as in other young open clusters. We show that the spectroscopic binaries NGC 2447-26, 38, and 42 are yellow-straggler stars, of which the primary is a giant star and the secondary a main-sequence A-type star.

KW - Open clusters and associations: individual: NGC 2447

KW - Stars: abundances

KW - Stars: evolution

KW - Stars: fundamental parameters

KW - open clusters and associations: individual: NGC 2447

KW - stars: evolution

KW - GALACTIC DISK

KW - LITHIUM ABUNDANCES

KW - METAL-POOR STARS

KW - COMPREHENSIVE ABUNDANCE ANALYSIS

KW - stars: abundances

KW - NEUTRON-CAPTURE ELEMENTS

KW - CHEMICAL-COMPOSITION

KW - ISOTOPE RATIOS

KW - MODEL ATMOSPHERES

KW - stars: fundamental parameters

KW - LABORATORY TRANSITION-PROBABILITIES

KW - RADIAL-VELOCITIES

UR - http://www.scopus.com/inward/record.url?scp=85045437327&partnerID=8YFLogxK

U2 - 10.1093/mnras/sty265

DO - 10.1093/mnras/sty265

M3 - Article

AN - SCOPUS:85045437327

VL - 476

SP - 4907

EP - 4931

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -

ID: 33797457