We demonstrate the possibility of detecting mass concentrations (down to the level of 5 x 10^7 M_sun) in the center of galaxies with ground-based optical telescopes properly equipped using Keplerian gaseous disks as probes. We predict that the high spatial resolution of HST equipped with STIS will allow to detect central mass concentrations down to the level of 5 x 10^6 M_sun . As a consequence, the detection of low mass concentrations in the range 10^6-10^7 M_sun will constitute a very proper use of HST.

Ground-based detection of circumnuclear Keplerian disks of ionized gas in early-type disk galaxies

BERTOLA, FRANCESCO;CAPPELLARI, MICHELE;CORSINI, ENRICO MARIA;PIZZELLA, ALESSANDRO;
1999

Abstract

We demonstrate the possibility of detecting mass concentrations (down to the level of 5 x 10^7 M_sun) in the center of galaxies with ground-based optical telescopes properly equipped using Keplerian gaseous disks as probes. We predict that the high spatial resolution of HST equipped with STIS will allow to detect central mass concentrations down to the level of 5 x 10^6 M_sun . As a consequence, the detection of low mass concentrations in the range 10^6-10^7 M_sun will constitute a very proper use of HST.
1999
International Symposium on Astrophysics Research and Science Education
026803155X
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2464727
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