Items where Author is "Norris, J.E."
Number of items: 26.
Article
A Critique of the Spite Plateau, and the Astration of Primordial Lithium. (2023)
J.E. Norris,
David Yong,
Anna Frebel
and
Sean Ryan
![]()
Lithium abundances of halo dwarfs based on excitation temperatures. II : Non-local thermodynamic equilibrium. (2010)
A. Hosford,
A.E.G. Perez,
R. Collet,
Sean G. Ryan,
J.E. Norris
and
K.A. Olive
![]()
Lithium abundances of halo dwarfs based on excitation temperature I : Local thermodynamic equilibrium. (2009)
A. Hosford,
Sean G. Ryan,
A.E. Garcia Perez,
J.E. Norris
and
K.A. Olive
![]()
Lithium abundances of extremely metal-poor turnoff stars. (2009)
W. Aoki,
P.S. Barklem,
T.C. Beers,
N. Christlieb,
S. Inoue,
A.E. Garcia Perez,
J.E. Norris
and
D. Carollo
A new sample of extremely/ultra metal-poor stars. (2008)
A. E. Garcia Perez,
N. Christlieb,
Sean G. Ryan,
T.C. Beers,
W. Aoki,
M. Asplund,
P.S. Barklem,
M.S. Bessell,
K. Eriksson,
A. Frebel,
B. Gustafsson,
A.J. Korn,
B. Nordstrom
and
J.E. Norris
Carbon-Enhanced Metal-Poor Stars. III : Main-Sequence Turn-Off Stars from the SDSS/SEGUE Sample. (2008)
W. Aoki,
T.C. Beers,
T. Sivarani,
B. Marsteller,
Y.S. Lee,
S. Honda,
J.E. Norris,
Sean G. Ryan
and
D. Carollo
Carbon enhanced metal-poor stars I : Chemical compositions of 26 stars. (2007)
W. Aoki,
T.C. Beers,
N. Christlieb,
J.E. Norris,
Sean G. Ryan
and
S. Tsangarides
Spectroscopic studies of extremely metal-poor stars with the Subaru high dispersion spectrograph. IV : The alpha-element-enhanced metal-poor star BS16934-002. (2007)
W. Aoki,
S. Honda,
T.C. Beers,
M. Takada-Hidai,
N. Iwamoto,
N. Tominaga,
H. Umeda,
K. Nomoto,
J.E. Norris
and
Sean G. Ryan
Carbon-enhanced metal-poor stars. Osmium and iridium abundances in the neutron-capture-enhanced subgiants CS31062-050 and LP625-44. (2006)
W. Aoki,
S. Bisterzo,
R. Gallino,
T.C. Beers,
J.E. Norris,
Sean G. Ryan
and
S. Tsangarides
![]()
A high-resolution spectral analysis of three carbon-enhanced metal-poor stars. (2006)
A. Goswami,
W. Aoki,
T.C. Beers,
N. Christlieb,
J.E. Norris,
Sean G. Ryan
and
S. Tsangarides
![]()
Nucleosynthetic signatures of the first stars. (2005)
A. Frebel,
W. Aoki,
N. Christlieb,
H. Ando,
M. Asplund,
P.S. Barklem,
T.C. Beers,
K. Eriksson,
C. Fechner,
M.Y. Fujimoto,
S. Honda,
T. Kajino,
T. Minezaki,
K. Nomoto,
J.E. Norris,
Sean G. Ryan,
M. Takada-Hidai,
S. Tsangarides
and
Y. Yoshii
![]()
Mg abundances in metal-poor halo stars as a tracer of early Galactic mixing. (2005)
E. Arnone,
Sean G. Ryan,
D. Argast,
J.E. Norris
and
T.C. Beers
![]()
The new record holder for the most iron-poor star: HE 1327−2326, a dwarf or subgiant with [Fe/H] = −5.4. (2005)
A. Frebel,
W. Aoki,
N. Christlieb,
H. Ando,
M. Asplund,
P.S. Barklem,
T.C. Beers,
K. Eriksson,
C. Fechner,
M.Y. Fujimoto,
S. Honda,
T. Kajino,
T. Minezaki,
K. Nomoto,
J.E. Norris,
Sean G. Ryan,
M. Takada-Hidai,
S. Tsangarides
and
Y. Yoshii
![]()
Oxygen Overabundance in the Extremely Iron-poor Star CS 29498-043. (2004)
W. Aoki,
J.E. Norris,
Sean G. Ryan,
T.C. Beers,
N. Christlieb,
S. Tsangarides
and
H. Ando
![]()
Spectroscopic Studies of Extremely Metal-Poor Stars with the Subaru High Dispersion Spectrograph. I. Observational Data. (2004)
S. Honda,
W. Aoki,
H. Ando,
H. Izumiura,
T. Kajino,
E. Kambe,
S. Kawanomoto,
K. Noguchi,
K. Okita,
K. Sadakane,
B. Sato,
M. Takada-Hidai,
Y. Takeda,
E. Watanabe,
T.C. Beers,
J.E. Norris
and
Sean G. Ryan
![]()
Europium Isotope Ratios in s-Process Element-enhanced Metal-poor Stars : A New probe of the 151Sm Branching. (2003)
W. Aoki,
Sean G. Ryan,
N. Iwamoto,
T.C. Beers,
J.E. Norris,
H. Ando,
T. Kajino,
G.J. Mathews
and
M.Y. Fujimoto
![]()
A Subaru/High Dispersion Spectrograph Study of Lead (Pb) Abundances in Eight s-Process Element-rich, Metal-poor Stars. (2002)
W. Aoki,
Sean G. Ryan,
J.E. Norris,
T.C. Beers,
H. Ando
and
S. Tsangarides
![]()
Chemical Composition fo the Carbon-rich, Extremely Metal Poor Star CS 29498-043. (2002)
W. Aoki,
J.E. Norris,
Sean G. Ryan,
T.C. Beers
and
H. Ando
![]()
Extremely Metal-poor Stars : IX CS 22949-037 and the Role of Hypernovae. (2002)
J.E. Norris,
Sean G. Ryan,
T.C. Beers,
H. Ando
and
W. Aoki
![]()
The Chemical Composition of Carbon-rich, very Metal Poor Stars : A New Class of Mildly Carbon Rich Objects without Excess of Neutron-Capture Elements. (2002)
W. Aoki,
J.E. Norris,
Sean G. Ryan,
T.C. Beers
and
H. Ando
![]()
Extremely Metal-Poor Stars. VIII. High-Resolution, HighSignal-to-Noise Ratio Analysis of Five Stars with [Fe/H][[3.5. (2001)
J.E. Norris,
Sean G. Ryan
and
T.C. Beers
![]()
Neutron Capture Elements in s-Process-Rich, Very Metal-Poor Stars. (2001)
W. Aoki,
Sean G. Ryan,
J.E. Norris,
T.C. Beers,
H. Ando,
N. Iwamoto,
T. Kajino,
G.J. Mathews
and
M.Y. Fujimoto
![]()
s- and r-process elements in two very metal-poor stars. (2001)
Sean G. Ryan,
W. Aoki,
L.A.J. Blake,
J.E. Norris,
T.C. Beers,
R. Gallino,
M. Busso
and
H. Ando
![]()
Primordial Lithium and Big Bang Nucleosynthesis. (2000)
Sean G. Ryan,
T.C. Beers,
K.A. Olive,
B.D. Fields
and
J.E. Norris
![]()
Estimation of Stellar Metal Abundance. II : A Recalibration of the Ca II K Technique, and the Autocorrelation Function Method. (1999)
T.C. Beers,
S. Rossi,
J.E. Norris,
Sean G. Ryan
and
T. Shefler
The Spite Lithium Plateau: Ultrathin but Postprimordial. (1999)
Sean G. Ryan,
J.E. Norris
and
T.C. Beers
![]()