Showing 2004Show all
2 papers · 1 filter
astro-ph2004
Masses of star clusters in the nuclei of bulge-less spiral galaxies
C. J. Walcher, R. P. van der Marel, D. McLaughlin +6
In the last decade star clusters have been found in the centers of spiral galaxies across all Hubble types. We here present a spectroscopic study of the exceptionally bright (10^6…
astro-ph2004
Testing Radiatively-Inefficient Accretion Flow Theory: an XMM-Newton Observation of NGC 3998
A. Ptak, Y. Terashima, L. C. Ho +1
We present the results of a 10 ks XMM-Newton observation of NGC 3998, a ``type-I'' LINER galaxy. Our goal is to test the extent to which radiatively-inefficient accretion flow (RIA…