9 citations · 14 across the 9 of their papers we have counts for
11 papers · 1 filter
Kinematics of planetary nebulae in the outskirts of the elliptical galaxy NGC 4697
R. H. Mendez, A. M. Teodorescu, R. -P. Kudritzki +1
We describe the implementation of slitless radial velocity measurements of extragalactic planetary nebulae (PNs) with the 8.2 m Subaru telescope and its Cassegrain imaging spectrog…
The Cepheid Galactic Internet
John G. Learned, R-P. Kudritzki, Sandip Pakvasa +1
We propose that a sufficiently advanced civilization may employ Cepheid variable stars as beacons to transmit all-call information throughout the galaxy and beyond. One can constru…
Extragalaxtic Stellar Astronomy
Miguel A. Urbaneja, Rolf Peter Kudritzki, Fabio Bresolin
Despite their paucity, massive hot stars are real cosmic engines of fundamental importance in shaping our Universe, from its very early stages up to its current appearance. Underst…
Extragalactic Stellar Astronomy with Blue Supergiants
N. Przybilla, F. Bresolin, K. Butler +3
The present generation of large telescopes facilitates spectroscopy of blue supergiants in galaxies out to distances beyond the Local Group. Recent developments in NLTE spectrum sy…
The subdwarf B + white dwarf binary KPD 1930+2752 - a Supernova Type Ia progenitor candidate
S. Geier, S. Nesslinger, U. Heber +3
The nature of the progenitors of type Ia supernovae is still under controversial debate. KPD 1930+2752 is one of the best SN Ia progenitor candidates known today. The object is a d…
Stellar Abundances in Dwarf Irregular Galaxies
Kim Venn, Eline Tolstoy, Andreas Kaufer +1
Dwarf irregular galaxies appear to have undergone very slow chemical evolution since they have low nebular abundances, but have had ongoing star formation over the past 15 Gyr. The…