caa a22 4500 445346159 CHVBK 20180317142829.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s11207-011-9779-5 doi (NATIONALLICENCE)springer-10.1007/s11207-011-9779-5 Weak Emission Lines in the Wings of Solar H and K [Elektronische Daten] [W. Livingston, L. Wallace, O. White] The rare-earth ions cerium ii, lanthanum ii, dysprosium ii, and additionally zirconium ii and iron ii, are seen as weak emission features in the wings of the solar Ca ii H and K lines. The strength of these emission lines increases on the disk toward the limb. We provide recent high-resolution observations at disk center and at the limb. The identity of the weak lines is re-worked. We point out the unique role of eclipse spectra in distinguishing between the photospheric and chromospheric origins of emission lines. It is then demonstrated from our full disk (Sun-as-a-Star) and center disk archives, 1974 - 2010, that no activity cycle related signal is evident (save for the H and K lines themselves). Springer Science+Business Media B.V., 2011 Solar spectrum nationallicence Emission lines nationallicence Chromosphere nationallicence Photosphere nationallicence Cycle variability nationallicence Livingston W. National Solar Observatory, Box 26732, 85726, Tucson, AZ, USA aut Wallace L. Kitt Peak National Observatory, Box 26732, 85726, Tucson, AZ, USA aut White O. Lazy FW Ranch, 7690 County Road 39, 81328, Mancos, CO, USA aut Solar Physics Springer Netherlands 270/2(2011-06-01), 485-491 0038-0938 270:2<485 2011 270 11207 https://doi.org/10.1007/s11207-011-9779-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11207-011-9779-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Livingston W. National Solar Observatory, Box 26732, 85726, Tucson, AZ, USA aut NATIONALLICENCE 700 1- Wallace L. Kitt Peak National Observatory, Box 26732, 85726, Tucson, AZ, USA aut NATIONALLICENCE 700 1- White O. Lazy FW Ranch, 7690 County Road 39, 81328, Mancos, CO, USA aut NATIONALLICENCE 773 0- Solar Physics Springer Netherlands 270/2(2011-06-01), 485-491 0038-0938 270:2<485 2011 270 11207 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer