Rujukan Rajah warna–magnitud galaksi

  1. ↑ Bell, Eric F. et al. Nearly 5000 Distant Early‐Type Galaxies in COMBO‐17: A Red Sequence and Its Evolution since z=1, The Astrophysical Journal, 608:752–767, 2004 June 20.
  2. ↑ Strateva, I., et al. Color Separation of Galaxy Types in the Sloan Digital Sky Survey Imaging Data, 2001, The Astronomical Journal, 122, 1861
  3. ↑ de Vaucouleurs, G. Integrated Colors of Bright Galaxies in the u, b, V System. 1961, The Astrophysical Journal Supplement Series, 5, 233.
  4. ↑ "A Deep Look into a Dark Sky". ESO Picture of the Week. Dicapai pada 8 August 2014.
  5. ↑ "Is our Milky Way galaxy a zombie, already dead and we don't know it?". phys.org (dalam bahasa Inggeris). Dicapai pada 2020-07-17.
  6. ↑ Schawinski, Kevin; Urry, C. Megan; Simmons, Brooke D.; Fortson, Lucy; Kaviraj, Sugata; Keel, William C.; Lintott, Chris J.; Masters, Karen L.; Nichol, Robert C. (2014). "The Green Valley is a Red Herring: Galaxy Zoo reveals two evolutionary pathways towards quenching of star formation in early- and late-type galaxies". Monthly Notices of the Royal Astronomical Society. 440 (1): 889. arXiv:1402.4814. Bibcode:2014MNRAS.440..889S. doi:10.1093/mnras/stu327.
  7. ↑ Mutch, S.J.; Croton, D.J.; Poole, G.B. (2011). "The Mid-life Crisis of the Milky Way and M31". The Astrophysical Journal. 736 (2): 84. arXiv:1105.2564. Bibcode:2011ApJ...736...84M. doi:10.1088/0004-637X/736/2/84.