activity
19942019
most citedThe Nature of Accreting Black Holes in Nearby Galaxy Nuclei

671 citations · 4k across the 47 of their papers we have counts for

collaborators

46 papers

astro-ph.GA2019

Understanding the Origin of Radio Outflows in Seyfert Galaxies using Radio Polarimetry

Biny Sebastian, P. Kharb, C. P. O' Dea +3

The role of starburst winds versus active galactic nuclei (AGN) jets/winds in the formation of the kiloparsec scale radio emission seen in Seyferts is not yet well understood. In o…

astro-ph.GA2019★ 23 cited

The filamentary radio lobes of the Seyfert-Starburst composite galaxy NGC3079

Biny Sebastian, Preeti Kharb, C. P. O Dea +2

We present results from multi-frequency polarization-sensitive Very Large Array observations of the Seyfert-starburst composite galaxy NGC3079. Our sensitive radio observations rev…

astro-ph.CO2011★ 20 cited

Investigating the nuclear activity of barred spiral galaxies: the case of NGC 1672

L. P. Jenkins, W. N. Brandt, E. J. M. Colbert +7

We have performed an X-ray study of the nearby barred spiral galaxy NGC1672, primarily to ascertain the effect of the bar on its nuclear activity. We use both Chandra and XMM-Newto…

astro-ph.CO2010★ 6 cited

Multiwavelength Study of Chandra X-Ray Sources in the Antennae

D. M. Clark, S. S. Eikenberry, B. R. Brandl +7

We use WIRC, IR images of the Antennae (NGC 4038/4039) together with the extensive catalogue of 120 X-ray point sources (Zezas et al. 2006) to search for counterpart candidates. Us…

astro-ph2008★ 2 cited

The FRII Broad Line Seyfert 1 Galaxy: PKSJ 1037-2705

Brian Punsly, Tracy E. Clarke, Steven Tingay +3

In this article, we demonstrate that PKSJ 1037-2705 has a weak accretion flow luminosity, well below the Seyfert1/QSO dividing line, weak broad emission lines (BELs) and moderately…

astro-ph2008★ 63 cited

Testing the Paradigm that Ultraluminous X-ray Sources as a Class Represent Accreting Intermediate-Mass Black Holes

C. T. Berghea, K. A. Weaver, E. J. M. Colbert +1

To test the idea that ultraluminous X-ray sources (ULXs) in external galaxies represent a class of accreting intermediate-mass black holes (IMBHs), we have undertaken a program to…