Messier 9 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Messier 9" in English language version.

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Formiggini, Liliana; et al. (May 2002), "Hidden subluminous stars among the FAUST UV sources towards Ophiuchus", Monthly Notices of the Royal Astronomical Society, 332 (2): 441–455, arXiv:astro-ph/0210325, Bibcode:2002MNRAS.332..441F, doi:10.1046/j.1365-8711.2002.05327.x, S2CID 119462293.
Boyles, J.; et al. (November 2011), "Young Radio Pulsars in Galactic Globular Clusters", The Astrophysical Journal, 742 (1): 51, arXiv:1108.4402, Bibcode:2011ApJ...742...51B, doi:10.1088/0004-637X/742/1/51, S2CID 118649860.
Koleva, M.; et al. (April 2008), "Spectroscopic ages and metallicities of stellar populations: validation of full spectrum fitting", Monthly Notices of the Royal Astronomical Society, 385 (4): 1998–2010, arXiv:0801.0871, Bibcode:2008MNRAS.385.1998K, doi:10.1111/j.1365-2966.2008.12908.x, S2CID 17571531
Arellano Ferro, A.; et al. (September 2013), "A detailed census of variable stars in the globular cluster NGC 6333 (M9) from CCD differential photometry", Monthly Notices of the Royal Astronomical Society, 434 (2): 1220–1238, arXiv:1306.3206, Bibcode:2013MNRAS.434.1220A, doi:10.1093/mnras/stt1080.

Gilmour, Jess K. (2012), The Practical Astronomer's Deep-sky Companion, The Patrick Moore Practical Astronomy Series, Springer Science & Business Media, p. 75, ISBN 978-1447100713.
O'Meara, Stephen James (2014), Deep-Sky Companions: The Messier Objects, Cambridge University Press, p. 71, ISBN 978-1107018372.
Machholz, Don (2002), The Observing Guide to the Messier Marathon: A Handbook and Atlas, Cambridge University Press, p. 23, ISBN 978-0521803861.
Klein, Hermann Joseph (1901), Star Atlas, Society for promoting Christian knowledge, p. 55.

Formiggini, Liliana; et al. (May 2002), "Hidden subluminous stars among the FAUST UV sources towards Ophiuchus", Monthly Notices of the Royal Astronomical Society, 332 (2): 441–455, arXiv:astro-ph/0210325, Bibcode:2002MNRAS.332..441F, doi:10.1046/j.1365-8711.2002.05327.x, S2CID 119462293.
Boyles, J.; et al. (November 2011), "Young Radio Pulsars in Galactic Globular Clusters", The Astrophysical Journal, 742 (1): 51, arXiv:1108.4402, Bibcode:2011ApJ...742...51B, doi:10.1088/0004-637X/742/1/51, S2CID 118649860.
Koleva, M.; et al. (April 2008), "Spectroscopic ages and metallicities of stellar populations: validation of full spectrum fitting", Monthly Notices of the Royal Astronomical Society, 385 (4): 1998–2010, arXiv:0801.0871, Bibcode:2008MNRAS.385.1998K, doi:10.1111/j.1365-2966.2008.12908.x, S2CID 17571531
Arellano Ferro, A.; et al. (September 2013), "A detailed census of variable stars in the globular cluster NGC 6333 (M9) from CCD differential photometry", Monthly Notices of the Royal Astronomical Society, 434 (2): 1220–1238, arXiv:1306.3206, Bibcode:2013MNRAS.434.1220A, doi:10.1093/mnras/stt1080.

Shapley, Harlow; Sawyer, Helen B. (August 1927), "A Classification of Globular Clusters", Harvard College Observatory Bulletin, 849 (849): 11–14, Bibcode:1927BHarO.849...11S.
Formiggini, Liliana; et al. (May 2002), "Hidden subluminous stars among the FAUST UV sources towards Ophiuchus", Monthly Notices of the Royal Astronomical Society, 332 (2): 441–455, arXiv:astro-ph/0210325, Bibcode:2002MNRAS.332..441F, doi:10.1046/j.1365-8711.2002.05327.x, S2CID 119462293.
Boyles, J.; et al. (November 2011), "Young Radio Pulsars in Galactic Globular Clusters", The Astrophysical Journal, 742 (1): 51, arXiv:1108.4402, Bibcode:2011ApJ...742...51B, doi:10.1088/0004-637X/742/1/51, S2CID 118649860.
Koleva, M.; et al. (April 2008), "Spectroscopic ages and metallicities of stellar populations: validation of full spectrum fitting", Monthly Notices of the Royal Astronomical Society, 385 (4): 1998–2010, arXiv:0801.0871, Bibcode:2008MNRAS.385.1998K, doi:10.1111/j.1365-2966.2008.12908.x, S2CID 17571531
Arellano Ferro, A.; et al. (September 2013), "A detailed census of variable stars in the globular cluster NGC 6333 (M9) from CCD differential photometry", Monthly Notices of the Royal Astronomical Society, 434 (2): 1220–1238, arXiv:1306.3206, Bibcode:2013MNRAS.434.1220A, doi:10.1093/mnras/stt1080.

Formiggini, Liliana; et al. (May 2002), "Hidden subluminous stars among the FAUST UV sources towards Ophiuchus", Monthly Notices of the Royal Astronomical Society, 332 (2): 441–455, arXiv:astro-ph/0210325, Bibcode:2002MNRAS.332..441F, doi:10.1046/j.1365-8711.2002.05327.x, S2CID 119462293.
Boyles, J.; et al. (November 2011), "Young Radio Pulsars in Galactic Globular Clusters", The Astrophysical Journal, 742 (1): 51, arXiv:1108.4402, Bibcode:2011ApJ...742...51B, doi:10.1088/0004-637X/742/1/51, S2CID 118649860.
Koleva, M.; et al. (April 2008), "Spectroscopic ages and metallicities of stellar populations: validation of full spectrum fitting", Monthly Notices of the Royal Astronomical Society, 385 (4): 1998–2010, arXiv:0801.0871, Bibcode:2008MNRAS.385.1998K, doi:10.1111/j.1365-2966.2008.12908.x, S2CID 17571531