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Luminous Cluster Ellipticals as Cosmological Standard Rods?
R. Bender, R. P. Saglia, B. Ziegler +2
We explore the possibility to calibrate massive cluster ellipticals as cosmological standard rods. The method is based on the Fundamental Plane relation combined with a correction…
More evidence for an intracluster planetary nebulae population in the Virgo cluster
R. H. Mendez, M. A. Guerrero, K. C. Freeman +5
We surveyed a 50 sq arcmin region in the Virgo cluster core to search for intergalactic planetary nebulae, and found 11 candidates in the surveyed area. The measured fluxes of thes…
Baade's red sheet resolved into stars with HST in the Blue Compact Dwarf Galaxy VII Zw 403
R. E. Schulte-Ladbeck, M. M. Crone, U. Hopp
HST WFPC2 observations of the nearby Blue Compact Dwarf Galaxy VII~Zw~403 (= UGC 6456) resolve single stars down to M-2.5, deep enough to identify red giants. This pop…
Exploring Cluster Ellipticals as Cosmological Standard Rods
R. Bender, R. P. Saglia, B. Ziegler +4
We explore the possibility to calibrate massive cluster ellipticals as cosmological standard rods using the Fundamental Plane relation combined with a correction for luminosity evo…
SN 1995ah-the first supernova observed in a Blue Compact Dwarf galaxy
Cristina C. Popescu, Piero Rafanelli, Stefano Benetti +3
We present the properties of the supernova SN 1995ah discovered in a Blue Compact Dwarf galaxy (BCD) around 10 days after the maximum. This is the first supernova event observed in…
The z=2.72 galaxy cB58: a gravitational fold arc lensed by the cluster MS 1512+36
S. Seitz, R. P. Saglia, R. Bender +3
Using HST WFPC2 V- and R-band data of the z=0.37 cluster MS1512+36 we show that the z=2.72 `protogalaxy' cB58 is not extraordinarily luminous intrinsically but lensed into a gravit…