EVIDENCE OF K-2V GRAINS BEING A NONMAGNETIC PHENOMENON

We present new data concerning the relation between locations of K-2v grain appearance and magnetic flux tubes. The data consist of a two ho ur time series of simultaneous spectral scans in Ca K and in the rotat ional bands of cyanogen (CN) around 3883 Angstrom. The intensity near the CN bandhead at 3883.4 Angstrom is used as a proxy for vertical mag netic flux (cf. Sheeley 1971, Liu & Sheeley 1971, Chapman 1974). We fi nd no statistically significant increase in CN intensity at locations of K-2v grain appearance. This indicates that there is no relation bet ween small scale magnetic flux tubes and locations of bright K-2v grai ns in the internetwork region.