The star contains 10,000 times more
zirconium than the
Sun; it also has between 1,000 and 10,000 times the amount of
strontium,
germanium and
yttrium than the Sun. The heavy metals are believed to be in cloud layers in the atmosphere where the ions of each metal have a particular opacity that allows radiational levitation to balance gravitational settling.[8]
References
^Nassau, J. J.; Stephenson, C. B. (1963). "Luminous Stars in the Northern Milky Way". Hamburger Sternw. 04.
Bibcode:
1963LS....C04....0N.
^
abZacharias, N.; Urban, S. E.; Zacharias, M. I.; Wycoff, G. L.; Hall, D. M.; Germain, M. E.; Holdenried, E. R.; Winter, L. (2003). "VizieR On-line Data Catalog: The Second U.S. Naval Observatory CCD Astrograph Catalog (UCAC2)". CDS/ADC Collection of Electronic Catalogues. 1289.
Bibcode:
2003yCat.1289....0Z.
^
abZacharias, N.; Finch, C. T.; Girard, T. M.; Henden, A.;
Bartlett, J. L.; Monet, D. G.; Zacharias, M. I. (2012). "VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)". VizieR On-line Data Catalog: I/322A. Originally Published in: 2012yCat.1322....0Z; 2013AJ....145...44Z. 1322.
Bibcode:
2012yCat.1322....0Z.
^
abGreen, E. M.; Guvenen, B.; O'Malley, C. J.; O'Connell, C. J.; Baringer, B. P.; Villareal, A. S.; Carleton, T. M.; Fontaine, G.; Brassard, P.; Charpinet, S. (2011). "The Unusual Variable Hot B Subdwarf LS IV-14°116". The Astrophysical Journal. 734 (1): 59.
Bibcode:
2011ApJ...734...59G.
doi:
10.1088/0004-637X/734/1/59.
S2CID122292750.