596 citations
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- Leibniz Institute for Astrophysics PotsdamDE10 papers
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23 papers · 1 filter
Synchrotron Outbursts in Galactic and Extra-galactic Jets, Any Difference?
M. Turler, E. J. Lindfors
We discuss differences and similarities between jets powered by super-massive black holes in quasars and by stellar-mass black holes in microquasars. The comparison is based on mul…
Superclusters of galaxies in the 2dF redshift survey. III. The properties of galaxies in superclusters
M. Einasto, J. Einasto, E. Tago +7
We use catalogues of superclusters of galaxies from the 2dF Galaxy Redshift Survey to study the properties of galaxies in superclusters. We compare the properties of galaxies in hi…
On the mass-to-light ratio of the local Galactic disc and the optical luminosity of the Galaxy
Chris Flynn, Johan Holmberg, Laura Portinari +2
We measure the volume luminosity density and surface luminosity density generated by the Galactic disc, using accurate data on the local luminosity function and the disc's vertical…
XMM-Newton observations of AM CVn binaries: V396 Hya & SDSS J1240-01
Gavin Ramsay, Paul J. Groot, Tom Marsh +3
We present the results of XMM-Newton observations of two AM CVn systems - V396 Hya and SDSS J1240-01. Both systems are detected in X-rays and in the UV: neither shows coherent vari…
RApid Temporal Survey - RATS II: Followup observations of 4 newly discovered short period variables
Gavin Ramsay, Ralf Napiwotzki, Pasi Hakala +1
The RApid Temporal Survey (RATS) is a survey to detect objects whose optical intensity varies on timescales of less than ~70 min. In our pilot dataset taken with the INT and the Wi…
The Red Halo Phenomenon
E. Zackrisson, N. Bergvall, G. Ostlin +2
Optical and near-IR observations of the halos of disk galaxies and blue compact galaxies have revealed a very red spectral energy distribution, which cannot easily be reconciled wi…