ar X iv : a st ro - p h / 98 10 45 6 v 1 2 8 O ct 1 99 8 AGB stars in binaries and their progeny

ar X iv : a st ro - p h / 98 10 37 1 v 1 2 2 O ct 1 99 8 ELLIPTICAL GALAXY DYNAMICS

ar X iv : a st ro - p h / 98 04 15 2 v 1 1 6 A pr 1 99 8 New aspects in the theory of magnetic winds from massive hot stars

ar X iv : a st ro - p h / 98 11 19 7 v 1 1 2 N ov 1 99 8 The ‘ bare ’ strange stars might not be bare

ar X iv : a st ro - p h / 02 10 45 8 v 1 2 1 O ct 2 00 2 Nova Scorpii 1941 ( V 697 Sco ) : A Probable Intermediate Polar

V697 Sco, the remnant of Nova Scorpii 1941 and currently at V ∼ 20.0, is found from photometric observations to have the characteristics of an intermediate polar (IP) with an orbital period (Porb) of 4.49 h and a rotation period (Prot) of 3.31 h. It therefore appears to be a member of the rare class of IPs where Prot ∼ Porb, which are probably discless systems. The prominence of the modulation ...

ar X iv : a st ro - p h / 98 05 07 5 v 1 6 M ay 1 99 8 The evolutionary state and fundamental parameters of metallic A - F giants

Using Hipparcos parallaxes, we show that the metallic A-F giants found by Hauck (1986) on the basis of their high ∆m2 index in Geneva photom-etry are on average more evolved than their non-metallic counterparts. Their mass distribution, rate of binaries and v sin i are shown to be incompatible with those of Am stars, so that they cannot be descendants of the latter. They might be former normal ...