Virtual Journal of Nuclear Astrophysics
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, Michigan State University and
Fry Fang
, University of Notre Dame
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The Hamburg/ESO R-process Enhanced Star survey (HERES) II. Spectroscopic analysis of the survey sample
Virtual Journal - Volume 3, Issue 18 - article #10
P. S. Barklem
(Uppsala),
N. Christlieb
(Hamburg),
T. C. Beers
(Michigan State),
V. Hill
(Paris Meudon),
J. Holmberg
(Tuorla),
B. Marsteller
(Michigan State),
S. Rossi
(Sao Paulo),
F.-J. Zickgraf
(Hamburg)
arXiv – Astrophysics – May 2005
astro-ph/0505050 [
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Nucleosynthetic signatures of the first stars
Virtual Journal - Volume 3, Issue 15 - article #39
ANNA FREBEL
,
WAKO AOKI
,
NORBERT CHRISTLIEB
,
HIROYASU ANDO
,
MARTIN ASPLUND
,
PAUL S. BARKLEM
,
TIMOTHY C. BEERS
,
KJELL ERIKSSON
,
CORA FECHNER
,
MASAYUKI Y. FUJIMOTO
,
SATOSHI HONDA
,
TOSHITAKA KAJINO
,
TAKEO MINEZAKI
,
KEN'ICHI NOMOTO
,
JOHN E. NORRIS
,
SEAN G. RYAN
,
MASAHIDE TAKADA-HIDAI
,
STELIOS TSANGARIDES
&
YUZURU YOSHII
Nature - Vol 434 No 7035 – April 2005
First paragraph
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PDF
(181k),
N&V
Kinematics of the Galactic Halo from Horizontal Branch stars in the Hamburg/ESO Survey
Virtual Journal - Volume 3, Issue 14 - article #32
Christopher Thom
,
Chris Flynn
,
Michael S. Bessell
,
Jyrki Hanninen
,
Timothy C. Beers
,
Norbert Christlieb
,
Dionne James
,
Johan Holmberg
,
Brad K. Gibson
arXiv - Astrophysics – April 2005
astro-ph/0504058 [
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Spectroscopic Studies of Very Metal-Poor Stars with the Subaru High Dispersion Spectrograph. III. Light Neutron-Capture Elements
Virtual Journal - Volume 3, Issue 9 - article #7
Wako Aoki
,
Satoshi Honda
,
Timothy C. Beers
,
Toshitaka Kajino
,
Hiroyasu Ando
,
John E. Norris
,
Sean G. Ryan
,
Hideyuki Izumiura
,
Kozo Sadakane
,
Masahide Takada-Hidai
arXiv - Astrophysics – March 2005
astro-ph/0503032 [
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Nucleosynthetic signatures of the first stars
Virtual Journal - Volume 3, Issue 9 - article #10
Anna Frebel
,
Wako Aoki
,
Norbert Christlieb
,
Hiroyasu Ando
,
Martin Asplund
,
Paul S. Barklem
,
Timothy C. Beers
,
Kjell Eriksson
,
Cora Fechner
,
Masayuki Y. Fujimoto
,
Satoshi Honda
,
Toshitaka Kajino
,
Takeo Minezaki
,
Ken`ichi Nomoto
,
John E. Norris
,
Sean G. Ryan
,
Masahide Takada-Hidai
,
Stelios Tsangarides
,
Yuzuru Yoshii
arXiv - Astrophysics – March 2005
astro-ph/0503021 [
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HST Observations of Heavy Elements in Metal-Poor Galactic Halo Stars
Virtual Journal - Volume 3, Issue 9 - article #15
John J. Cowan
,
Christopher Sneden
,
Timothy C. Beers
,
James E. Lawler
,
Jennifer Simmerer
,
James W. Truran
,
Francesca Primas
,
Jason Collier
,
Scott Burles
arXiv - Astrophysics – March 2005
astro-ph/0502591 [
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The stellar content of the Hamburg/ESO survey - III. Field horizontal-branch stars in the Galaxy
Virtual Journal - Volume 3, Issue 5 - article #16
N. Christlieb
,
T. C. Beers
,
C. Thom
,
R. Wilhelm
,
S. Rossi
,
C. Flynn
,
L. Wisotzki
and
D. Reimers
Astronomy and Astrophysics – Vol 431, No 1 – February 2005
Abstract
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References
Mg abundances in metal-poor halo stars as a tracer of early Galactic mixing
Virtual Journal - Volume 3, Issue 3 - article #13
E. Arnone
,
S. G. Ryan
,
D. Argast
,
J. E. Norris
and
T. C. Beers
Astronomy and Astrophysics – Vol 430, No 2 – January 2005
Abstract
,
PDF file (316 KB)
,
PS file (103 KB)
Improved Laboratory Transition Probabilities for Pt I and Application to the Platinum Abundances of BD +17°3248 and the Sun
Virtual Journal - Volume 3, Issue 3 - article #21
E. A. Den Hartog
,
M. T. Herd
,
J. E. Lawler
,
C. Sneden
,
J. J. Cowan
,
and
T. C. Beers
Astrophysical Journal – Vol 619, No 1 – January 2005
ABSTRACT
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FULL TEXT WITH ENHANCEMENTS
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(437 kB),
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Observational evidence for a different IMF in the early Galaxy
Virtual Journal - Volume 2, Issue 50 - article #4
Sara Lucatello
(1,2),
Raffaele G. Gratton
(1),
Timothy C. Beers
(3),
Eugenio Carretta
(1,4)
(1- INAF OAPD; 2- Dipartimento di Astronomia, Universita' di Padova; 3- MSU; 4- INAF OABO)
arXiv - Astrophysics – December 2004
astro-ph/0412423 [
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The Binary Frequency Among Carbon-Enhanced, s-Process Rich, Metal-Poor Stars
Virtual Journal - Volume 2, Issue 50 - article #5
Sara Lucatello
(1,2),
Stelios Tsangarides
(3),
Timothy C. Beers
(4),
Eugenio Carretta
(1,5),
Raffaele G. Gratton
(1),
Sean G. Ryan
(3)
(1-INAF, Osservatorio Astronomico di Padova; 2- Dipartimento di Astronomia, Padova University; 3-The Open University; 4- MSU, 5-INAF, Osservatorio Astronomico di Bologna)
arXiv - Astrophysics – December 2004
astro-ph/0412422 [
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On the Binarity of Carbon-Enhanced, Metal-Poor Stars
Virtual Journal - Volume 2, Issue 49 - article #8
S. Tsangarides
(1),
S. G. Ryan
(1),
T. C. Beers
(2)
((1) The Open University, Milton Keynes, UK,
(2) Michigan State University and JINA, East Lansing, USA)
arXiv - Astrophysics – December 2004
astro-ph/0412160 [
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The Hamburg/ESO R-process Enhanced Star survey (HERES) - I. Project description, and discovery of two stars with strong enhancements of neutron-capture elements
Virtual Journal - Volume 2, Issue 49 - article #32
N. Christlieb
,
T. C. Beers
,
P. S. Barklem
,
M. Bessell
,
V. Hill
,
J. Holmberg
,
A. J. Korn
,
B. Marsteller
,
L. Mashonkina
,
Y.-Z. Qian
,
S. Rossi
,
G. J. Wasserburg
,
F.-J. Zickgraf
,
K.-L. Kratz
,
B. Nordström
,
B. Pfeiffer
,
J. Rhee
and
S. G. Ryan
Astronomy and Astrophysics – Vol 428, No 3 – December 2004
Abstract
,
PDF file (306 KB)
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Where Are We Now, and Where Are We Going? Perspectives on Cosmic Abundances
Virtual Journal - Volume 2, Issue 48 - article #24
Timothy C. Beers
arXiv - Astrophysics – December 2004
astro-ph/0411751 [
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On the binarity of carbon-enhanced, metal-poor stars
Virtual Journal - Volume 2, Issue 48 - article #89
S. Tsangarides
,
S. G. Ryan
,
T. C. Beers
PDF file
Lead abundance in the uranium star CS 31082-001
Virtual Journal - Volume 2, Issue 47 - article #22
B. Plez
,
V. Hill
,
R. Cayrel
,
M. Spite
,
B. Barbuy
,
T. C. Beers
,
P. Bonifacio
,
F. Primas
and
B. Nordström
Astronomy and Astrophysics – Vol 428, No 1 – November 2004
Abstract
,
Full HTML
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PDF file (187 KB)
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PS file (227 KB)
,
References
The stellar content of the Hamburg/ESO survey. III. Field horizontal-branch stars in the Galaxy
Virtual Journal - Volume 2, Issue 45 - article #1
N. Christlieb
,
T.C. Beers
,
C. Thom
,
R. Wilhelm
,
S. Rossi
,
C. Flynn
,
L. Wisotzki
,
D. Reimers
arXiv - Astrophysics – November 2004
astro-ph/0411300 [
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]
Lead abundance in the uranium star CS 31082-001
Virtual Journal - Volume 2, Issue 43 - article #12
B. Plez
,
V. Hill
,
R. Cayrel
,
M. Spite
,
B. Barbuy
,
T.C. Beers
,
P. Bonifacio
,
F. Primas
,
B. Nordström
arXiv - Astrophysics – October 2004
astro-ph/0410628 [
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]
The Hamburg/ESO R-process Enhanced Star survey (HERES). I. Project description, and discovery of two stars with strong enhancements of neutron-capture elements
Virtual Journal - Volume 2, Issue 34 - article #22
N. Christlieb
,
T. C. Beers
,
P. S. Barklem
,
M. Bessell
,
V. Hill
,
J. Holmberg
,
A.J. Korn
,
B. Marsteller
,
L. Mashonkina
,
Y.-Z. Qian
,
S. Rossi
,
G.J. Wasserburg
,
F.-J. Zickgraf
,
K.-L. Kratz
,
B. Nordstr{ö}m
,
B. Pfeiffer
,
J. Rhee
,
S.G. Ryan
arXiv - Astrophysics - August 2004
astro-ph/0408389 [
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]
Efficient Searches for r-Process-Enhanced, Metal-Poor Stars
Virtual Journal - Volume 2, Issue 34 - article #24
T.C. Beers
(1),
P.S. Barklem
(2),
N. Christlieb
(3),
V. Hill
(4)
((1) Michigan State Univ.,
(2) Uppsala Univ., Sweden,
(3) Hamburger Sternwarte, Germany,
(4) Observatorie de Paris Meudon, France)
arXiv - Astrophysics - August 2004
astro-ph/0408381 [
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Carbon-Enhanced Metal-Poor Stars in the Early Galaxy
Virtual Journal - Volume 2, Issue 34 - article #25
B. Marsteller
(1),
T.C. Beers
(1),
S. Rossi
(2),
N. Christlieb
(3),
M. Bessell
(4),
J. Rhee
(5)
((1) Michigan State University,
(2) IAG, Univ. of Sao Paulo, Brazil,
(3) Hamburger Sternwarte, Germany,
(4) Australian National University, Australia,
(5) Center for Space Astrophysics, Korea, and Space Astrophysics Laboratory, Caltech)
arXiv - Astrophysics - August 2004
astro-ph/0408380 [
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uvby-β photometry of high-velocity and metal-poor stars - X. Stars of very low metal abundance: Observations, reddenings, metallicities, classifications, distances, and relative ages
Virtual Journal - Volume 2, Issue 28 - article #19
W. J. Schuster
,
T. C. Beers
,
R. Michel
,
P. E. Nissen
and
G. GarcĂa
Astronomy and Astrophysics – Vol 422 No 2 – July 2004
Abstract
,
PDF file (536 KB)
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Early Star Formation and Chemical Evolution in Proto-Galactic Clouds
Virtual Journal - Volume 2, Issue 27 - article #6
Lamya Saleh
,
Timothy C. Beers
,
Grant J. Mathews
arXiv - Astrophysics – July 2004
astro-ph/0407159 [
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]
Oxygen Overabundance in the Extremely Iron-poor Star CS 29498-043
Virtual Journal - Volume 2, Issue 23 - article #41
Wako Aoki
,
John E. Norris
,
Sean G. Ryan
,
Timothy C. Beers
,
Norbert Christlieb
,
Stelios Tsangarides
,
and
Hiroyasu Ando
Astrophysical Journal – Volume 608 Number 1 – June 2004
ABSTRACT
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FULL TEXT WITH ENHANCEMENTS
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PDF
(179 kB),
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Spectroscopic Studies of Extremely Metal-Poor Stars with the Subaru High Dispersion Spectrograph. II. The
r
-Process Elements, Including Thorium
Virtual Journal - Volume 2, Issue 20 - article #29
Satoshi Honda
,
Wako Aoki
,
Toshitaka Kajino
,
Hiroyasu Ando
,
Timothy C. Beers
,
Hideyuki Izumiura
,
Kozo Sadakane
,
and
Masahide Takada-Hidai
Astrophysical Journal - Volume 607, Number 1 – May 2004
ABSTRACT
,
FULL TEXT
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PDF
(1383 kB),
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Spectroscopic Studies of Extremely Metal-Poor Stars with the Subaru High Dispersion Spectrograph. I. Observational Data
Virtual Journal - Volume 2, Issue 16 - article #20
Satoshi Honda
,
Wako Aoki
,
Hiroyasu Ando
,
Hideyuki Izumiura
,
Toshitaka Kajino
,
Eiji Kambe
,
Satoshi Kawanomoto
,
Kunio Noguchi
,
Kiichi Okita
,
Kozo Sadakane
,
Bun'ei Sato
,
Masahide Takada-Hidai
,
Yoichi Takeda
,
Etsuji Watanabe
,
Timothy C. Beers
,
John E. Norris
,
and
Sean G. Ryan
The Astrophysical Journal Supplement Series - Volume 152, Number 1
ABSTRACT
,
FULL TEXT
,
PDF
(770 kB),
PS
uvby β photometry of high-velocity and metal-poor stars X. Stars of very low metal abundance: observations, reddenings, metallicities, classifications, distances, and relative ages
Virtual Journal - Volume 2, Issue 13 - article #22
W. J. Schuster
,
T. C. Beers
,
R. Michel
,
P. E. Nissen
,
G. Garcia
arXiv.org – Astrophysics – March 2004
astro-ph/0403637 [
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]
HE 0107-5240, a Chemically Ancient Star. I. A Detailed Abundance Analysis
Virtual Journal - Volume 2, Issue 10 - article #37
N. Christlieb
,
B. Gustafsson
,
A. J. Korn
,
P. S. Barklem
,
T. C. Beers
,
M. S. Bessell
,
T. Karlsson
,
and
M. Mizuno-Wiedner
The Astrophysical Journal - Volume 603, Number 2, Part 1
ABSTRACT
,
FULL TEXT
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PDF
(757 kB),
PS
Oxygen Overabundance in the Extremely Iron-Poor Star CS29498-043
Virtual Journal - Volume 2, Issue 8 - article #8
Wako Aoki
,
John E. Norris
,
Sean G. Ryan
,
Timothy C. Beers
,
Norbert Christlieb
,
Stelios Tsangarides
,
Hiroyasu Ando
arXiv.org – Astrophysics – February 2004
astro-ph/0402585 [
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]
Spectroscopic Studies of Extremly Metal-Poor Stars with Subaru/HDS:II.The r-process Elements, Including Thorium
Virtual Journal - Volume 2, Issue 6 - article #2
S. Honda
,
W. Aoki
,
T. Kajino
,
H. Ando
,
T.C. Beers
,
H. Izumiura
,
K. Sadakane
,
M. Takada-Hidai
arXiv.org – Astrophysics – February 2004
astro-ph/0402298 [
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]
Spectroscopic Studies of Extremely Metal-Poor Stars with Subaru/HDS:I. Observational Data
Virtual Journal - Volume 2, Issue 6 - article #7
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
,
S.G. Ryan
arXiv.org – Astrophysics – February 2004
astro-ph/0402291 [
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]
First stars IV. CS 29497-030: Evidence for operation of the
s
-process at very low metallicity
Virtual Journal - Volume 2, Issue 1 - article #29
T. Sivarani
,
P. Bonifacio
,
P. Molaro
,
R. Cayrel
,
M. Spite
,
F. Spite
,
B. Plez
,
J. Andersen
,
B. Barbuy
,
T. C. Beers
,
E. Depagne
,
V. Hill
,
P. François
,
B. Nordström
and
F. Primas
Astronomy and Astrophysics - Vol. 413 No. 3
Abstract
, Full HTML,
PDF file (431 KB)
,
PS file (169 KB)
The Asymmetric Thick Disk: A Star Count and Kinematic Analysis. II The Kinematics
Virtual Journal - Volume 1, Issue 21 - article #9
Jeniffer E. Parker
,
Roberta M.
Humphreys(Dept. of Astronomy, Univ. of Minnesota),
Timothy C.
Beers(Dept. of Physics & Astronomy, Michigan State University)
arXiv.org - Astrophysics - Tue, 2 Dec 2003
astro-ph/0312017 [
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HE0107-5240, A Chemically Ancient Star.I. A Detailed Abundance Analysis
Virtual Journal - Volume 1, Issue 18 - article #23
N.
Christlieb(Uppsala Astronomical Observatory and Hamburger Sternwarte),
B.
Gustafsson(Uppsala Astronomical Observatory),
A. J.
Korn(Universitaets-Sternwarte Muenchen and Uppsala Astronomical Observatory),
P. S.
Barklem(Uppsala Astronomical Observatory),T.
C.
Beers(Department of Physics and Astronomy, Michigan State University),
M. S.
Bessell(Research School of Astronomy and Astrophysics, Australian National University),T.
Karlsson
,
M. Mizuno-Wiedner
(Uppsala Astronomical Observatory)
arXiv.org - Astrophysics - Mon, 10 Nov 2003
astro-ph/0311173 [
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First stars IV.CS 29497-030: Evidence for operation of the s-process at very low metallicity
Virtual Journal - Volume 1, Issue 14 - article #37
T.
Sivarani(1),
P.
Bonifacio(1),
P.
Molaro(1),
R.
Cayrel(2),
M.
Spite(2),
F.
Spite(2),
B.
Plez(3),
J.
Andersen(4),
B.
Barbuy(5),
T. C.
Beers(6),
E.
Depagne(7),
V.
Hill(2),
P.
Francois(2),
B. Nordstrom
(8,4),
F.
Primas(9)
((1) INAF-OA Trieste,
(2) Observatoire de Paris-Meudon,
(3) GRAAL, Univ. Montpellier,
(4) Astronomical Observatory, NBIfAFG, Copenhagen,
(5) IAG, Universidade de Sao Paulo,
(6) Michigan State University,
(7) ESO-Chile,
(8) Lund Observatory,
(9) ESO-Garching)
arXiv.org - Astrophysics - Mon, 13 Oct 2003
astro-ph/0310291 [
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]
Surveying the Inner Halo of the Galaxy with 2MASS-Selected Horizontal Branch Candidates
Virtual Journal - Volume 1, Issue 12 - article #21
Warren R.
Brown(1),
M. J.
Geller(1),
S. J.
Kenyon(1),
T. C.
Beers(2),
M. J.
Kurtz(1),
J. B.
Roll(1)
((1) Smithsonian Astrophysical Observatory,
(2) Michigan State University)
arXiv.org - Astrophysics - Wed, 1 Oct 2003
astro-ph/0309794 [
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]
The
r
-Process in Supernova Explosions from the Collapse of O-Ne-Mg Cores
Virtual Journal - Volume 1, Issue 5 - article #22
Shinya Wanajo
,
Masaya Tamamura
,
Naoki Itoh
,
Ken'ichi Nomoto
,
Yuhri Ishimaru
,
Timothy C. Beers
,
and
Satoshi Nozawa
The Astrophysical Journal - Volume 593, Number 2, Part 1
ABSTRACT
,
FULL TEXT
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(988kb),
PS
Europium Isotope Ratios in
s
-Process Element enhanced Metal-poor Stars: A New Probe of the
151
Sm Branching
Virtual Journal - Volume 1, Issue 3 - article #14
Wako Aoki
,
Sean G. Ryan
,
Nobuyuki Iwamoto,Timothy
,
C. Beers
,
John E. Norris
,
Hiroyasu Ando,Toshitaka
,
Kajino
,
Grant J. Mathews
,
and
Masayuki Y. Fujimoto
The Astrophysical Journal Letters, Volume 592, Number 2, Part 2
ABSTRACT
,
FULL TEXT
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PDF
(86kb),
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The Extremely Metal-poor, Neutron Capture rich Star CS 22892-052: A Comprehensive Abundance Analysis
Virtual Journal - Volume 1, Issue 1 - article #39
Christopher Sneden
,
John J. Cowan
,
James E. Lawler
,
Inese I. Ivans
,
Scott Burles
,
Timothy C. Beers
,
Francesca Primas
,
Vanessa Hill
,
James W. Truran
,
George M. Fuller
,
Bernd Pfeiffer
,
and
Karl-Ludwig Kratz
The Astrophysical Journal, Volume 591, Number 2, Part 1
ABSTRACT
,
FULL TEXT
,
PDF
(435kb),
PS
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