Messier 4 (Norwegian Wikipedia)
Analysis of information sources in references of the Wikipedia article "Messier 4" in Norwegian language version.
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archive.org
- Caputo, F.; Castellani, V.; Quarta, M. L. (februar 1985). «Reddening, distance modulus and age of the globular cluster NGC 6121 (M4) from the properties of RR Lyrae variables». Astronomy and Astrophysics. 143 (1): 8–12. Bibcode:1985A&A...143....8C.
arxiv.org
- Goldsbury, Ryan; m.fl. (desember 2010). «The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters». The Astronomical Journal. 140 (6): 1830–1837. Bibcode:2010AJ....140.1830G. arXiv:1008.2755
. doi:10.1088/0004-6256/140/6/1830. - Marks, Michael; Kroupa, Pavel (august 2010). «Initial conditions for globular clusters and assembly of the old globular cluster population of the Milky Way». Monthly Notices of the Royal Astronomical Society. 406 (3): 2000–2012. Bibcode:2010MNRAS.406.2000M. arXiv:1004.2255 . doi:10.1111/j.1365-2966.2010.16813.x. Mass is from MPD on Table 1.
- Marino, A. F.; m.fl. (november 2008). «Spectroscopic and photometric evidence of two stellar populations in the Galactic globular cluster NGC 6121 (M 4)». Astronomy and Astrophysics. 490 (2): 625–640. Bibcode:2008A&A...490..625M. arXiv:0808.1414 . doi:10.1051/0004-6361:200810389.
doi.org
- Goldsbury, Ryan; m.fl. (desember 2010). «The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters». The Astronomical Journal. 140 (6): 1830–1837. Bibcode:2010AJ....140.1830G. arXiv:1008.2755 . doi:10.1088/0004-6256/140/6/1830.
- Marks, Michael; Kroupa, Pavel (august 2010). «Initial conditions for globular clusters and assembly of the old globular cluster population of the Milky Way». Monthly Notices of the Royal Astronomical Society. 406 (3): 2000–2012. Bibcode:2010MNRAS.406.2000M. arXiv:1004.2255 . doi:10.1111/j.1365-2966.2010.16813.x. Mass is from MPD on Table 1.
- Marino, A. F.; m.fl. (november 2008). «Spectroscopic and photometric evidence of two stellar populations in the Galactic globular cluster NGC 6121 (M 4)». Astronomy and Astrophysics. 490 (2): 625–640. Bibcode:2008A&A...490..625M. arXiv:0808.1414 . doi:10.1051/0004-6361:200810389.
harvard.edu
adsabs.harvard.edu
- Goldsbury, Ryan; m.fl. (desember 2010). «The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters». The Astronomical Journal. 140 (6): 1830–1837. Bibcode:2010AJ....140.1830G. arXiv:1008.2755 . doi:10.1088/0004-6256/140/6/1830.
- Shapley, Harlow; Sawyer, Helen B. (august 1927). «A Classification of Globular Clusters». Harvard College Observatory Bulletin. 849 (849): 11–14. Bibcode:1927BHarO.849...11S.
- Marks, Michael; Kroupa, Pavel (august 2010). «Initial conditions for globular clusters and assembly of the old globular cluster population of the Milky Way». Monthly Notices of the Royal Astronomical Society. 406 (3): 2000–2012. Bibcode:2010MNRAS.406.2000M. arXiv:1004.2255 . doi:10.1111/j.1365-2966.2010.16813.x. Mass is from MPD on Table 1.
- Marino, A. F.; m.fl. (november 2008). «Spectroscopic and photometric evidence of two stellar populations in the Galactic globular cluster NGC 6121 (M 4)». Astronomy and Astrophysics. 490 (2): 625–640. Bibcode:2008A&A...490..625M. arXiv:0808.1414 . doi:10.1051/0004-6361:200810389.
- Caputo, F.; Castellani, V.; Quarta, M. L. (februar 1985). «Reddening, distance modulus and age of the globular cluster NGC 6121 (M4) from the properties of RR Lyrae variables». Astronomy and Astrophysics. 143 (1): 8–12. Bibcode:1985A&A...143....8C.
u-strasbg.fr
simbad.u-strasbg.fr
- «M 4 – Globular Cluster». SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Besøkt 25. mars 2010.