4 papers
A large HI cloud near the centre of the Virgo cluster
Tom Oosterloo, Jacqueline van Gorkom
We report the discovery of a large HI cloud in the central regions of the Virgo cluster. It is 110 x 25 kpc in size and contains 3.4 x 10^8 Msol of HI. The morphology and kinematic…
Evolution of planetary nebulae II. Population effects on the bright cut-off of the PNLF
P. Marigo, L. Girardi, A. Weiss +2
We investigate the bright cut-off of the [OIII]l5007 planetary nebula luminosity function (PNLF), that has been suggested as a powerful extragalactic distance indicator. Theoretica…
Detection of X-ray Emission from SNR G16.7+0.1
Marcel A. Agueros, David J. Helfand, Eric V. Gotthelf
We have observed the Galactic supernova remnant G16.7+0.1 for 13 ks using the EPIC cameras aboard the XMM-Newton X-ray Observatory, producing the first detection of the SNR outside…
Star Formation in Viscous Galaxy Disks
Adrianne Slyz, Julien Devriendt, Andreas Burkert +2
The Lin and Pringle model (1987) of galactic disk formation postulates that if star formation proceeds on the same timescale as the viscous redistribution of mass and angular momen…