Astronomy:Metallicity distribution function

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Short description: Distribution within a group of stars of the ratio of iron to hydrogen in a star

The metallicity distribution function is an important concept in stellar and galactic evolution. It is a curve of what proportion of stars have a particular metallicity ([Fe/H], the relative abundance of iron and hydrogen) of a population of stars such as in a cluster or galaxy. [1][2][3][4][5][6][7]

MDFs are used to test different theories of galactic evolution. Much of the iron in a star will have come from earlier type Ia supernovae. Other [alpha] metals can be produced in core collapse supernovae.[8][9]

References

  1. ↑ Fenner, Yeshe; Gibson, Brad K. (5 March 2013). "Deriving the Metallicity Distribution Function of Galactic Systems". Publications of the Astronomical Society of Australia 20 (2): 189–195. doi:10.1071/AS02047. Bibcode: 2003PASA...20..189F. http://www.publish.csiro.au/?act=view_file&file_id=AS02047.pdf. 
  2. ↑ Casagrande, L.; Schönrich, R.; Asplund, M.; Cassisi, S.; Ramírez, I.; Meléndez, J.; Bensby, T.; Feltzing, S. (26 May 2011). "New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)". Astronomy & Astrophysics 530: A138. doi:10.1051/0004-6361/201016276. Bibcode: 2011A&A...530A.138C. http://www.aanda.org/articles/aa/pdf/2011/06/aa16276-10.pdf. 
  3. ↑ Frinchaboy, P. M.; Rhee, J.; Ostheimer, J. C.; Majewski, S. R.; Patterson, R. J.; Johnson, W. Y.; Dinescu, D. I.; Palma, C. et al. (2002). "The Metallicity Distribution Function of omega Centauri". Omega Centauri 265: 143. Bibcode: 2002ASPC..265..143F. 
  4. ↑ Beers, Timothy C; Christlieb, Norbert; Norris, John E; Bessell, Michael S; Wilhelm, Ronald; Carlos Allende Prieto; Yanny, Brian; Rockosi, Constance et al. (2005). "The Metallicity Distribution Function of the Halo of the Milky Way". Proceedings of the International Astronomical Union 1: 175–183. doi:10.1017/S1743921305005521. Bibcode: 2005IAUS..228..175B. 
  5. ↑ Sarajedini, Ata; Jablonka, Pascale (2005). "The Metallicity Distribution Function of Field Stars in M31's Bulge". The Astronomical Journal 130 (4): 1627–1634. doi:10.1086/433171. Bibcode: 2005AJ....130.1627S. 
  6. ↑ Schlesinger, Katharine J; Johnson, Jennifer A; Rockosi, Constance M; Young Sun Lee; Morrison, Heather L; Schoenrich, Ralph; Carlos Allende Prieto; Beers, Timothy C et al. (2011). "The Metallicity Distribution Functions of SEGUE G and K dwarfs: Constraints for Disk Chemical Evolution and Formation". The Astrophysical Journal 761 (2): 160. doi:10.1088/0004-637X/761/2/160. Bibcode: 2012ApJ...761..160S. 
  7. ↑ Yong, David; Norris, John E.; Bessell, M. S.; Christlieb, N.; Asplund, M.; Beers, Timothy C.; Barklem, P. S.; Frebel, Anna et al. (1 January 2013). "The Most Metal-Poor Stars. III. The Metallicity Distribution Function and CEMP Fraction". The Astrophysical Journal 762 (1): 27. doi:10.1088/0004-637X/762/1/27. Bibcode: 2013ApJ...762...27Y. 
  8. ↑ "Chemical evolution models". bas.bg. http://www.astro.bas.bg/~petrov/holzman07_files/ay616/node5.html. Retrieved 3 March 2017. 
  9. ↑ Lai, David K.; Young Sun Lee; Bolte, Michael; Lucatello, Sara; Beers, Timothy C.; Johnson, Jennifer A.; Sivarani, Thirupathi; Rockosi, Constance M. (2011). "The [Fe/H], [C/Fe], and [alpha/Fe] distributions of the Bootes I Dwarf Spheroidal Galaxy". The Astrophysical Journal 738 (1): 51. doi:10.1088/0004-637X/738/1/51. Bibcode: 2011ApJ...738...51L. 

Further reading




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