72 citations · 72 across the 1 of their papers we have counts for
3 papers
astro-ph2008★ 72 cited
New period-luminosity and period-color relations of classical Cepheids: III. Cepheids in SMC
A. Sandage, G. A. Tammann, B. Reindl
The photometric data for 460 classical, fundamental-mode Cepheids in the SMC with log P > 0.4 measured by Udalski et al. have been analyzed for their P-C and P-L relations, and for…
astro-ph2004
New Period-Luminosity and Period-Color Relations of Classical Cepheids: II. Cepheids in LMC
A. Sandage, G. A. Tammann, B. Reindl
Photometric data for 593 Cepheids in the LMC, measured by Udalski et al. in the OGLE survey, augmented by 92 longer period Cepheids from other sources, are analyzed for the P-C and…
astro-ph2002
1ES 1927+654: Persistent and rapid X-ray variability in an AGN with low intrinsic neutral X-ray absorption and narrow optical emission lines
Th. Boller, W. Voges, M. Dennefeld +7
We present X-ray and optical observations of the X-ray bright AGN 1ES 1927+654. The X-ray observations obtained with ROSAT and Chandra reveal persistent, rapid and large scale vari…