567 citations · 3.5k across the 87 of their papers we have counts for
5 papers · 1 filter
Long-term X-ray Variability of the Symbiotic System RT Cru based on Chandra Spectroscopy
A. Danehkar, M. Karovska, J. J. Drake +1
RT Cru belongs to the rare class of hard X-ray emitting symbiotics, whose origin is not yet fully understood. In this work, we have conducted a detailed spectroscopic analysis of X…
Hubble Space Telescope Snapshot Survey for Resolved Companions of Galactic Cepheids: Final Results
Nancy Remage Evans, H. Moritz Guenther, Howard E. Bond +13
Cepheids in multiple systems provide information on the outcome of the formation of massive stars. They can also lead to exotic end-stage objects. This study concludes our survey o…
Revisiting the complex nuclear region of NGC 6240 with Chandra
G. Fabbiano, A. Paggi, M. Karovska +3
We present a reanalysis of the cumulative ACIS S Chandra data set pointed at the double AGNs of the NGC 6240 merging galaxy, focusing on the hard energy bands containing the hard s…
Spatially resolved BPT mapping of nearby Seyfert 2 galaxies
Jingzhe Ma, W. Peter Maksym, G. Fabbiano +5
We present spatially resolved BPT mapping of the extended narrow line regions (ENLRs) of seven nearby Seyfert 2 galaxies, using HST narrow band filter imaging. We construct the BPT…
Chandra Observations of NGC 7212: Large-scale Extended Hard X-ray Emission
Mackenzie L. Jones, G. Fabbiano, Martin Elvis +5
Recent observations of nearby Compton thick (CT) active galactic nuclei (AGNs) with Chandra have resolved hard (>3 keV) X-ray emission extending out from the central supermassive b…