Nucleosynthesis in a primordial supernova: Carbon and oxygen abundances in SMSS J031300.36-670839.3

Michael S. Bessell; Remo Collet; Stefan C. Keller; Anna Frebel; Alexander Heger; Andrew R. Casey; Thomas Masseron; Martin Asplund; Heather R. Jacobson; Karin Lind; Anna F. Marino; John E. Norris; David Yong; Gary Da Costa; Conrad Chan; Zazralt Magic; Brian Schmidt; Patrick Tisserand

doi:10.1088/2041-8205/806/1/L16

Nucleosynthesis in a primordial supernova: Carbon and oxygen abundances in SMSS J031300.36-670839.3

Michael S. Bessell, Remo Collet, Stefan C. Keller, Anna Frebel, Alexander Heger, Andrew R. Casey, Thomas Masseron, Martin Asplund, Heather R. Jacobson, Karin Lind, Anna F. Marino, John E. Norris, David Yong, Gary Da Costa, Conrad Chan, Zazralt Magic, Brian Schmidt, Patrick Tisserand

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Abstract

SMSS J031300.36-670839.3 (hereafter SM0313-6708) is a sub-giant halo star, with no detectable Fe lines and large overabundances of C and Mg relative to Ca. We obtained Very Large Telescope-Ultraviolet and Visual Echelle Spectrograph (UVES) spectra extending to 3060 Å showing strong OH A-X band lines enabling an oxygen abundance to be derived. The OH A-X band lines in SM0313-6708 are much stronger than the CH C-X band lines. Spectrum synthesis fits indicate an [O/C] ratio of 0.02 ± 0.175. Our high signal-to-noise ratio UVES data also enabled us to lower the Fe abundance limit to [Fe/H]_(3D),NTLE <-7.52 (3σ). These data support our previous suggestion that the star formed from the iron-poor ejecta of a single massive star Population III supernova.

Original language	English
Article number	L16
Journal	Astrophysical Journal Letters
Volume	806
Issue number	1
DOIs	https://doi.org/10.1088/2041-8205/806/1/L16
Publication status	Published - 10 Jun 2015

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Bessell, M. S., Collet, R., Keller, S. C., Frebel, A., Heger, A., Casey, A. R., Masseron, T., Asplund, M., Jacobson, H. R., Lind, K., Marino, A. F., Norris, J. E., Yong, D., Da Costa, G., Chan, C., Magic, Z., Schmidt, B., & Tisserand, P. (2015). Nucleosynthesis in a primordial supernova: Carbon and oxygen abundances in SMSS J031300.36-670839.3. Astrophysical Journal Letters, 806(1), Article L16. https://doi.org/10.1088/2041-8205/806/1/L16

@article{5009fe45f2fe4b7580d62a763138279e,

title = "Nucleosynthesis in a primordial supernova: Carbon and oxygen abundances in SMSS J031300.36-670839.3",

abstract = "SMSS J031300.36-670839.3 (hereafter SM0313-6708) is a sub-giant halo star, with no detectable Fe lines and large overabundances of C and Mg relative to Ca. We obtained Very Large Telescope-Ultraviolet and Visual Echelle Spectrograph (UVES) spectra extending to 3060 {\AA} showing strong OH A-X band lines enabling an oxygen abundance to be derived. The OH A-X band lines in SM0313-6708 are much stronger than the CH C-X band lines. Spectrum synthesis fits indicate an [O/C] ratio of 0.02 ± 0.175. Our high signal-to-noise ratio UVES data also enabled us to lower the Fe abundance limit to [Fe/H](3D),NTLE <-7.52 (3σ). These data support our previous suggestion that the star formed from the iron-poor ejecta of a single massive star Population III supernova.",

keywords = "Population III, supernovae: general, supernovae: individual (SMSS J031300.36)",

author = "Bessell, \{Michael S.\} and Remo Collet and Keller, \{Stefan C.\} and Anna Frebel and Alexander Heger and Casey, \{Andrew R.\} and Thomas Masseron and Martin Asplund and Jacobson, \{Heather R.\} and Karin Lind and Marino, \{Anna F.\} and Norris, \{John E.\} and David Yong and \{Da Costa\}, Gary and Conrad Chan and Zazralt Magic and Brian Schmidt and Patrick Tisserand",

year = "2015",

month = jun,

day = "10",

doi = "10.1088/2041-8205/806/1/L16",

language = "English",

volume = "806",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "American Astronomical Society",

number = "1",

}

Bessell, MS, Collet, R, Keller, SC, Frebel, A, Heger, A, Casey, AR, Masseron, T, Asplund, M, Jacobson, HR, Lind, K, Marino, AF, Norris, JE, Yong, D, Da Costa, G, Chan, C, Magic, Z, Schmidt, B & Tisserand, P 2015, 'Nucleosynthesis in a primordial supernova: Carbon and oxygen abundances in SMSS J031300.36-670839.3', Astrophysical Journal Letters, vol. 806, no. 1, L16. https://doi.org/10.1088/2041-8205/806/1/L16

TY - JOUR

T1 - Nucleosynthesis in a primordial supernova

T2 - Carbon and oxygen abundances in SMSS J031300.36-670839.3

AU - Bessell, Michael S.

AU - Collet, Remo

AU - Keller, Stefan C.

AU - Frebel, Anna

AU - Heger, Alexander

AU - Casey, Andrew R.

AU - Masseron, Thomas

AU - Asplund, Martin

AU - Jacobson, Heather R.

AU - Lind, Karin

AU - Marino, Anna F.

AU - Norris, John E.

AU - Yong, David

AU - Da Costa, Gary

AU - Chan, Conrad

AU - Magic, Zazralt

AU - Schmidt, Brian

AU - Tisserand, Patrick

PY - 2015/6/10

Y1 - 2015/6/10

N2 - SMSS J031300.36-670839.3 (hereafter SM0313-6708) is a sub-giant halo star, with no detectable Fe lines and large overabundances of C and Mg relative to Ca. We obtained Very Large Telescope-Ultraviolet and Visual Echelle Spectrograph (UVES) spectra extending to 3060 Å showing strong OH A-X band lines enabling an oxygen abundance to be derived. The OH A-X band lines in SM0313-6708 are much stronger than the CH C-X band lines. Spectrum synthesis fits indicate an [O/C] ratio of 0.02 ± 0.175. Our high signal-to-noise ratio UVES data also enabled us to lower the Fe abundance limit to [Fe/H](3D),NTLE <-7.52 (3σ). These data support our previous suggestion that the star formed from the iron-poor ejecta of a single massive star Population III supernova.

AB - SMSS J031300.36-670839.3 (hereafter SM0313-6708) is a sub-giant halo star, with no detectable Fe lines and large overabundances of C and Mg relative to Ca. We obtained Very Large Telescope-Ultraviolet and Visual Echelle Spectrograph (UVES) spectra extending to 3060 Å showing strong OH A-X band lines enabling an oxygen abundance to be derived. The OH A-X band lines in SM0313-6708 are much stronger than the CH C-X band lines. Spectrum synthesis fits indicate an [O/C] ratio of 0.02 ± 0.175. Our high signal-to-noise ratio UVES data also enabled us to lower the Fe abundance limit to [Fe/H](3D),NTLE <-7.52 (3σ). These data support our previous suggestion that the star formed from the iron-poor ejecta of a single massive star Population III supernova.

KW - Population III

KW - supernovae: general

KW - supernovae: individual (SMSS J031300.36)

UR - https://www.scopus.com/pages/publications/84930948115

U2 - 10.1088/2041-8205/806/1/L16

DO - 10.1088/2041-8205/806/1/L16

M3 - Article

SN - 2041-8205

VL - 806

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 1

M1 - L16

ER -

Nucleosynthesis in a primordial supernova: Carbon and oxygen abundances in SMSS J031300.36-670839.3

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