IAUC 8430 available at Central Bureau for Astronomical Telegrams.

IAUC 7745 available at Central Bureau for Astronomical Telegrams.

Our arguments deal with the early evolution of Galactic globular clusters and show why only a few of the supernovae (SNe) products were retained within globular clusters and only in the most massive cases (M ≥ 106 M⊙), while less massive clusters were not contaminated at all by SNe. Here, we show that SN blast waves evolving in a steep density

Using the IMaX instrument on board the SUNRISE stratospheric balloon telescope, we have detected extremely shifted polarization signals around the Fe I 5250.217 Å spectral line within granules in the solar photosphere. We interpret the velocities associated with these events as corresponding to supersonic and magnetic upflows. In addition, they are

Isolated cool white dwarf stars more often have strong magnetic fields than young, hotter white dwarfs, which has been a puzzle because magnetic fields are expected to decay with time but a cool surface suggests that the star is old. In addition, some white dwarfs with strong fields vary in brightness as they rotate, which has been variously

Markarian 50 is analyzed using V and I CCD frames and IPCS and CCD spectra, obtained in June 1985, covering the range 3200-10,000 A. It is inferred from the surface brightness profiles derived from the images that this is an early-type, elliptical, or S0 galaxy, which is supported by the spectral analysis of the stellar population. After