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Results 1 - 44 of 44

Lithium abundances in globular cluster giants: NGC 1904, NGC 2808, and NGC 362
- Virtual Journal - Volume 13, Issue 16 - article #42
- V. D'Orazi, R. G. Gratton, G. C. Angelou, A. Bragaglia, E. Carretta, J. C. Lattanzio, S. Lucatello, Y. Momany, A. Sollima, and G. Beccari
- Monthly Notices of the Royal Astronomical Society - Volume: 449, Issue: 4
- Abstract Full Text (HTML) Full Text (PDF) SUPPORTING INFORMATION
Lithium abundances in globular cluster giants: NGC 1904, NGC 2808, and NGC 362
- Virtual Journal - Volume 13, Issue 12 - article #5
- V. D'Orazi, R. G. Gratton, G. C. Angelou, A. Bragaglia, E. Carretta, J. C. Lattanzio, S. Lucatello, Y. Momany, A. Sollima, G. Beccari
- arXiv.org - Astrophysics - Volume: 2015, Issue: 27 Mar
- arXiv:1503.05925 [pdf, ps, other]
A stellar population synthesis approach to the Oosterhoff dichotomy
- Virtual Journal - Volume 12, Issue 21 - article #7
- A. Sollima, S. Cassisi, G. Fiorentino, R. G. Gratton
- arXiv.org - Astrophysics - Volume: 2014, Issue: 1 Aug
- arXiv:1407.8434 [pdf, ps, other]
The Metallicity Spread and the Age-Metallicity Relation of Ï‰ Centauri
- Virtual Journal - Volume 12, Issue 21 - article #165
- S. Villanova, D. Geisler, R. G. Gratton, and S. Cassisi
- The Astrophysical Journal - Volume: 791, Issue: 2
- View article PDF (1.79 MB)
Spectroscopy of Red Giants in the globular cluster Terzan 8: kinematics and evidence for the surrounding Sagittarius stream
- Virtual Journal - Volume 12, Issue 20 - article #96
- A. Sollima, E. Carretta, V. D'Orazi, R. G. Gratton, A. Bragaglia, S. Lucatello
- arXiv.org - Astrophysics - Volume: 2014, Issue: 27 Jun
- arXiv:1406.6198 [pdf, ps, other]
The extreme chemistry of multiple stellar populations in the metal-poor globular cluster NGC 4833
- Virtual Journal - Volume 12, Issue 17 - article #34
- E. Carretta, A. Bragaglia, R. G. Gratton, V. DÃ¢Â€Â™Orazi, S. Lucatello, Y. Momany, A. Sollima, M. Bellazzini, G. Catanzaro and F. Leone
- Astronomy and Astrophysics - Volume: 564, Issue: April 2014
- http://dx.doi.org/10.1051/0004-6361/201323321
  Abstract Full HTML PDF (873.6 KB) ePUB (1.989 MB) References Tables at CDS NASA ADS Abstract Service
The Na-O anticorrelation in horizontal branch stars - IV. M 22
- Virtual Journal - Volume 12, Issue 16 - article #23
- R. G. Gratton, S. Lucatello, A. Sollima, E. Carretta, A. Bragaglia, Y. Momany, V. DÃ¢Â€Â™Orazi, S. Cassisi and M. Salaris
- Astronomy and Astrophysics - Volume: 563, Issue: March 2014
- http://dx.doi.org/10.1051/0004-6361/201323101
  Abstract Full HTML PDF (857.7 KB) References Tables at CDS NASA ADS Abstract Service
Terzan 8: a Sagittarius-flavoured globular cluster
- Virtual Journal - Volume 12, Issue 8 - article #26
- E. Carretta, A. Bragaglia, R. G. Gratton, V. DÃ¢Â€Â™Orazi, S. Lucatello and A. Sollima
- Astronomy and Astrophysics - Volume: 561, Issue: January 2014
- http://dx.doi.org/10.1051/0004-6361/201322676
  Abstract Full HTML PDF (734.5 KB) References Online Material Tables at CDS NASA ADS Abstract Service
Potassium in Globular Cluster Stars: Comparing Normal Clusters to the Peculiar Cluster NGCÂ 2419
- Virtual Journal - Volume 11, Issue 20 - article #27
- E. Carretta, R. G. Gratton, A. Bragaglia, V. D'Orazi, S. Lucatello, A. Sollima, and C. Sneden
- The Astrophysical Journal - Volume: 769, Issue: 1
- Abstract References Full text PDF (549 KB) Enhanced article HTML
An aluminium tool for multiple stellar generations in the globular clusters 47 Tucanae and M 4
- Virtual Journal - Volume 11, Issue 7 - article #27
- E. Carretta, R. G. Gratton, A. Bragaglia, V. DÃ¢Â€Â™Orazi and S. Lucatello
- Astronomy and Astrophysics - Volume: 550, Issue: February 2013
- http://dx.doi.org/10.1051/0004-6361/201220470
  Abstract | Full HTML | PDF (453.3 KB) | References | Online Material | NASA ADS Abstract Service
The Na-O anticorrelation in horizontal branch stars - III. 47 Tucanae and M 5
- Virtual Journal - Volume 11, Issue 3 - article #48
- R. G. Gratton, S. Lucatello, A. Sollima, E. Carretta, A. Bragaglia, Y. Momany, V. DÃ¢Â€Â™Orazi, S. Cassisi, A. Pietrinferni and M. Salaris
- Astronomy and Astrophysics - Volume: 549, Issue: January 2013
- http://dx.doi.org/10.1051/0004-6361/201219976
  Abstract | Full HTML | PDF (719.1 KB) | References | Tables at CDS | NASA ADS Abstract Service
Aluminum abundances of multiple stellar generations in the globular cluster NGC 1851
- Virtual Journal - Volume 10, Issue 51 - article #43
- E. Carretta, V. DÃ¢Â€Â™Orazi, R. G. Gratton and S. Lucatello
- Astronomy and Astrophysics - Volume: 543, Issue: July 2012
- http://dx.doi.org/10.1051/0004-6361/201219277
  Abstract | Full HTML | PDF (198.1 KB) | References | Online Material | SIMBAD record | NASA ADS Abstract Service
Spectroscopic analysis of the two subgiant branches of the globular cluster NGC 1851
- Virtual Journal - Volume 10, Issue 51 - article #56
- R. G. Gratton, S. Villanova, S. Lucatello, A. Sollima, D. Geisler, E. Carretta, S. Cassisi and A. Bragaglia
- Astronomy and Astrophysics - Volume: 544, Issue: August 2012
- http://dx.doi.org/10.1051/0004-6361/201219276
  Abstract | Full HTML | PDF (1.613 MB) | References | Online Material | SIMBAD record | NASA ADS Abstract Service
Searching for multiple stellar populations in the massive, old open cluster Berkeley 39
- Virtual Journal - Volume 10, Issue 51 - article #82
- A. Bragaglia, R. G. Gratton, E. Carretta, V. DÃ¢Â€Â™Orazi, C. Sneden and S. Lucatello
- Astronomy and Astrophysics - Volume: 548, Issue: December 2012
- http://dx.doi.org/10.1051/0004-6361/201220366
  Abstract | Full HTML | PDF (424.2 KB) | References | Online Material | NASA ADS Abstract Service
The Na-O anticorrelation in horizontal branch stars. III. 47 Tuc and M 5
- Virtual Journal - Volume 10, Issue 42 - article #12
- R. G. Gratton, S. Lucatello, A. Sollima, E. Carretta, A. Bragaglia, Y. Momany, V. D'Orazi, S. Cassisi, A. Pietrinferni, M. Salaris
- arXiv.org - Astrophysics - Volume: 2012, Issue: 19 Oct
- arXiv:1210.4069 [pdf, ps, other]
The chemical composition of nearby young associations: s-process element abundances in AB Doradus, Carina-Near and Ursa Major
- Virtual Journal - Volume 10, Issue 25 - article #34
- V. D’Orazi, K. Biazzo, S. Desidera, E. Covino, S. M. Andrievsky and R. G. Gratton
- Monthly Notices of the Royal Astronomical Society - Volume: 423, Issue: 3
- Abstract Full Article (HTML)PDF(487K)References Request Permissions
Chemical Tagging of Three Distinct Populations of Red Giants in the Globular Cluster NGCÂ 6752
- Virtual Journal - Volume 10, Issue 17 - article #59
- E. Carretta, A. Bragaglia, R. G. Gratton, S. Lucatello, and V. D'Orazi
- The Astrophysical Journal Letters - Volume: 750, Issue: 1
- Abstract References Full text PDF (295 KB) HTML with Enhancements
The Helium Content of Globular Clusters: NGCÂ 6121 (M4)
- Virtual Journal - Volume 10, Issue 12 - article #40
- S. Villanova, D. Geisler, G. Piotto and R. G. Gratton
- The Astrophysical Journal - Volume: 748, Issue: 1
- Abstract References Full text PDF (1.03 MB) View as HTML
The Na-O anticorrelation in horizontal branch stars. I. NGC 2808
- Virtual Journal - Volume 9, Issue 38 - article #21
- R. G. Gratton, S. Lucatello, E. Carretta, A. Bragaglia, V. D'Orazi, Y. Al Momany
- arXiv.org - Astrophysics - Volume: 2011, Issue: 23 Sep
- arXiv:1109.4013 [pdf, ps, other]
Lithium abundance in the globular cluster M4: from the turn-off to the red giant branch bump
- Virtual Journal - Volume 9, Issue 11 - article #20
- A. Mucciarelli, M. Salaris, L. Lovisi, F. R. Ferraro, B. Lanzoni, S. Lucatello and R. G. Gratton
- Monthly Notices of the Royal Astronomical Society - Volume: 412, Issue: 1
- Abstract Full Article (HTML)PDF(1329K)References Supporting Information
Lithium abundance in the globular cluster M4: from the Turn-Off to the RGB Bump
- Virtual Journal - Volume 8, Issue 43 - article #8
- A. Mucciarelli (1), M. Salaris (2), L. Lovisi (1), F. R. Ferraro (1), L. Lanzoni (1), S. Lucatello (3), R. G. Gratton (3) ((1) Astronomy Department, Bologna University, Italy (2) Astrophysics Research Institute, Liverpool John Moores University, UK, (3) INAF-Osservatorio Astronomico di Padova, Italy)
- arXiv.org - Astrophysics - Volume: 2010, Issue: 22 Oct
- arXiv:1010.3879 [pdf, ps, other]
Abundances for a Large Sample of Red Giants in NGCÂ 1851: Hints for a Merger of Two Clusters?
- Virtual Journal - Volume 8, Issue 40 - article #39
- E. Carretta, R. G. Gratton, S. Lucatello, A. Bragaglia, G. Catanzaro, F. Leone, Y. Momany, V. D'Orazi, S. Cassisi, F. D'Antona, and S. Ortolani
- The Astrophysical Journal Letters - Volume: 722, Issue: 1
- Abstract References Full text PDF (314 KB) View as HTML
Na-O anticorrelation and HB - VII. The chemical composition of first and second-generation stars in 15 globular clusters from GIRAFFE spectra
- Virtual Journal - Volume 7, Issue 40 - article #24
- E. Carretta, A. Bragaglia, R. G. Gratton, S. Lucatello, G. Catanzaro, F. Leone, M. Bellazzini, R. Claudi, V. D'Orazi, Y. Momany, S. Ortolani, E. Pancino, G. Piotto, A. Recio-Blanco, and E. Sabbi
- Astronomy and Astrophysics - Volume: 505, Issue: 1
- Abstract | PDF file (820.5 KB) | PS file (470.3 KB)
The helium content of globular clusters: light element abundance correlations and HB morphology - I. NGC 6752
- Virtual Journal - Volume 7, Issue 23 - article #15
- S. Villanova, G. Piotto, and R. G. Gratton
- Astronomy and Astrophysics - Volume: 499, Issue: 3
- Abstract | PDF file (886.7 KB) | PS file (329.9 KB)
Beryllium abundances and star formation in the halo and in the thick disk
- Virtual Journal - Volume 7, Issue 21 - article #12
- R. Smiljanic, L. Pasquini, P. Bonifacio, D. Galli, R. G. Gratton, S. Randich, and B. Wolff
- Astronomy and Astrophysics - Volume: 499, Issue: 1
- Abstract | PDF file (576.0 KB) | PS file (317.0 KB)
Beryllium abundances and star formation in the halo and in the thick disk
- Virtual Journal - Volume 7, Issue 6 - article #1
- R. Smiljanic, L. Pasquini, P. Bonifacio, D. Galli, R. G. Gratton, S. Randich, B. Wolff
- arXiv.org - Astrophysics - Volume: 2009, Issue: 5 Feb
- arXiv:0902.0483 [ps, pdf, other]
Na-O anticorrelation and HB - I. The Na-O anticorrelation in NGC 2808
- Virtual Journal - Volume 4, Issue 15 - article #31
- E. Carretta, A. Bragaglia, R. G. Gratton, F. Leone, A. Recio-Blanco and S. Lucatello
- Astronomy and Astrophysics - Volume 450, Issue 2 - April, 2006
- Abstract, Full HTML, PDF file (298 KB), PS file (141 KB), References
Sulphur abundance in Galactic stars
- Virtual Journal - Volume 3, Issue 38 - article #19
- E. Caffau, P. Bonifacio, R. Faraggiana, P. FranÃ§ois, R. G. Gratton and M. Barbieri
- Astronomy and Astrophysics - Vol. 441 No. 2 – September 2005
- Abstract , Full HTML , PDF file (680 KB) , PS file (470 KB) , References , Online Material
Li in NGC 6752 and the formation of globular clusters
- Virtual Journal - Volume 3, Issue 38 - article #20
- L. Pasquini, P. Bonifacio, P. Molaro, P. Francois, F. Spite, R. G. Gratton, E. Carretta and B. Wolff
- Astronomy and Astrophysics - Vol. 441 No. 2 – September 2005
- Abstract , Full HTML , PDF file (148 KB) , PS file (47.1 KB) , References
High-resolution spectroscopy of the old open cluster Collinder 261: abundances of iron and other elements
- Virtual Journal - Volume 3, Issue 37 - article #37
- E. Carretta, A. Bragaglia, R. G. Gratton and M. Tosi
- Astronomy and Astrophysics – Vol.441 No.1 p.131 - October 2005
- Abstract , PDF file (301 KB) , PS file (163 KB)
Precise reddening and metallicity of NGC 6752 from FLAMES spectra
- Virtual Journal - Volume 3, Issue 36 - article #30
- R. G. Gratton, A. Bragaglia, E. Carretta, F. De Angeli, S. Lucatello, G. Piotto and A. Recio Blanco
- Astronomy and Astrophysics - Vol. 440 , No. 3 – September 2005
- Abstract , Full HTML, PDF file (217 KB) , Early star formation in the Galaxy from beryllium and oxygen abundances
  - Virtual Journal - Volume 3, Issue 23 - article #31
  - L. Pasquini, D. Galli, R. G. Gratton, P. Bonifacio, S. Randich and G. Valle
  - Astronomy & Astrophysics - Vol. 436 No.3 – June 2005
  - Abstract , Full HTML , PDF file (186 KB) , PS file (221 KB) , References
- Abundance anomalies in hot horizontal branch stars of the galactic globular cluster NGC 1904
  - Virtual Journal - Volume 3, Issue 14 - article #50
  - D. Fabbian, A. Recio-Blanco, R. G. Gratton and G. Piotto
  - Astronomy and Astrophysics – Vol 434, No 1 – April 2005
  - Abstract , Full HTML , PDF file (460 KB) , PS file (199 KB) , References
- Abundances of C, N, O in slightly evolved stars in the globular clusters NGC 6397, NGC 6752 and 47 Tuc
  - Virtual Journal - Volume 3, Issue 12 - article #15
  - E. Carretta, R. G. Gratton, S. Lucatello, A. Bragaglia and P. Bonifacio
  - Astronomy and Astrophysics – Vol. 433, No. 2 – March 2005
  - Abstract , PDF file (424 KB) , PS file (129 KB)
- Heavy elements and chemical enrichment in globular clusters
  - Virtual Journal - Volume 2, Issue 46 - article #28
  - G. James, P. FranÃ§ois, P. Bonifacio, E. Carretta, R. G. Gratton and F. Spite
  - Astronomy and Astrophysics – Vol 427, No 3 – November 2004
  - Abstract , PDF file (357 KB) , PS file (108 KB)
- Beryllium in turnoff stars of NGC 6397: Early Galaxy spallation, cosmochronology and cluster formation
  - Virtual Journal - Volume 2, Issue 41 - article #39
  - L. Pasquini, P. Bonifacio, S. Randich, D. Galli and R. G. Gratton
  - Astronomy and Astrophysics – Vol 426, No 2 – October 2004
  - Abstract , Full HTML, PDF file (213 KB) , PS file (100 KB) , References
- Heavy elements and chemical enrichment in globular clusters
  - Virtual Journal - Volume 2, Issue 33 - article #5
  - G. James (1), P. Francois (1), P. Bonifacio (2), E. Carretta (3), R. G. Gratton (3), F. Spite (1) ((1) Observatoire de Paris - GEPI, France, (2) INAF - Osservatorio Astronomico di Trieste, Italy, (3) INAF - Osservatorio Astronomico di Padova, Italy)
  - arxiv - Astrophysics – August 2004
  - astro-ph/0408330 [ abs , ps , pdf , other ]
- Abundance difference between components of wide binaries
  - Virtual Journal - Volume 2, Issue 21 - article #31
  - S. Desidera, R. G. Gratton, S. Scuderi, R. U. Claudi, R. Cosentino, M. Barbieri, G. Bonanno, E. Carretta, M. Endl, S. Lucatello, A. F. Martinez Fiorenzano and F. Marzari
  - Astronomy and Astrophysics - Vol. 420 No. 2 - June 2004
  - Abstract , PDF file (281 KB) , PS file (115 KB)
- Abundance analysis of turn-off and early subgiant stars in the globular cluster 47 Tuc (NGC 104)
  - Virtual Journal - Volume 2, Issue 10 - article #28
  - E. Carretta, R. G. Gratton, A. Bragaglia, P. Bonifacio and L. Pasquini
  - Astronomy and Astrophysics - Vol. 416 No. 3
  - Abstract , Full HTML , PDF file (371 KB) , PS file (308 KB)
- Heavy elements abundances in turn-off stars and early subgiants in NGC 6752
  - Virtual Journal - Volume 2, Issue 4 - article #37
  - G. James, P. FranÃ§ois, P. Bonifacio, A. Bragaglia, E. Carretta, M. CenturiÃ³n, G. Clementini, S. Desidera, R. G. Gratton, F. Grundahl, S. Lucatello, P. Molaro, L. Pasquini, C. Sneden and F. Spite
  - Astronomy and Astrophysics - Vol. 414 No. 3
  - Abstract , Full HTML, PDF file (208 KB) , PS file (74.5 KB)
- The chemical composition of the peculiar companion to the millisecond pulsar in NGC 6397
  - Virtual Journal - Volume 1, Issue 22 - article #37
  - E. Sabbi, R. G. Gratton, A. Bragaglia, F. R. Ferraro, A. Possenti, F. Camilo and N. D'Amico
  - Astronomy and Astrophysics - Vol. 412 No. 3
  - Abstract , Full HTML , PDF file (495 KB) , PS file (140 KB)
- Heavy elements abundances in turn-off stars and early subgiants in NGC 6752
  - Virtual Journal - Volume 1, Issue 18 - article #10
  - G. James(1), P. Francois(1), P. Bonifacio(2), A. Bragaglia(3), E. Carretta(4), M. Centurion(2), G. Clementini(3), S. Desidera(5,6), R. G. Gratton(4), F. Grundahl(7), S. Lucatello(4,6), P. Molaro(2), L. Pasquini(8), C. Sneden(9), F. Spite(1) ((1) Obs. Paris, (2) INAF-OATs, (3) INAF-OABo, (4) INAF-OAPd, (5) Univ. Pisa, (6) Univ. Padova, (7) Univ. Aarhus, (8) ESO, (9) Univ. Texas)
  - arXiv.org - Astrophysics - Thu, 13 Nov 2003
  - astro-ph/0311278 [ abs , ps , pdf , other ]
- The chemical composition of the peculiar companion to the millisecond pulsar in NGC 6397
  - Virtual Journal - Volume 1, Issue 11 - article #28
  - E. Sabbi, R. G. Gratton, A. Bragaglia, F. R. Ferraro, A. Possenti, F. Camilo, N. D'Amico
  - arXiv.org - Astrophysics - Mon, 22 Sep 2003
  - astro-ph/0309541 [ abs , ps , pdf , other ]
- Abundances for metal-poor stars with accurate parallaxes - II. α-elements in the halo
  - Virtual Journal - Volume 1, Issue 2 - article #1
  - R. G. Gratton, E. Carretta, S. Desidera, S. Lucatello, P. Mazzei and M. Barbieri
  - Astronomy and Astrophysics Vol. 406 No. 1
  - Abstract , Full HTML , PDF file (187 KB) , PS file (102 KB)
Results 1 - 44 of 44

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