Aims.We report the discovery of five new dwarf novae that were spectroscopically identified in the Hamburg Quasar Survey (HQS), and discuss the properties of the sample of new dwarf novae from the HQS.Methods.Follow-up time-resolved spectroscopy and photometry have been obtained to characterise the new systems.Results.The orbital periods determined

In ATEL #871 the fluxes were incorrectly quoted. All the fluxes should be multiplied by 1E-10 in order to obtain the correct values. The quoted luminosities are correct since the right fluxes were used to calculate them. We apologize for any confusion this error might have caused.

IAUC 8737 available at Central Bureau for Astronomical Telegrams.

Though it is now clear that accretion of dwarf galaxies likely played a prominent role in creating the Milky Way (MW) halo, the chemical abundance patterns of current MW satellites are typically very different than those of halo stars, and the reason for these differences remains a matter of speculation. We propose to test the bridge from dwarf

Essay review of the book: La astronomía del antiguo Egipto by J. Llull (PUV, Valencia, 372 pp., 2004) ISBN 84-370-6049-4.

Long-duration γ-ray bursts (GRBs) are associated with type Ic supernovae that are more luminous than average and that eject material at very high velocities. Less-luminous supernovae were not hitherto known to be associated with GRBs, and therefore GRB-supernovae were thought to be rare events. Whether X-ray flashes-analogues of GRBs, but with