431 citations · 2.6k across the 59 of their papers we have counts for
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Coordinated mm/sub-mm observations of Sagittarius A* in May 2007
D. Kunneriath, A. Eckart, S. Vogel +26
At the center of the Milky Way, with a distance of ~8 kpc, the compact source Sagittarius A* (SgrA*) can be associated with a super massive black hole of ~4x10^6 solar masses. SgrA…
Coordinated multi-wavelength observations of Sgr A*
A. Eckart, R. Schoedel, F. K. Baganoff +26
We report on recent near-infrared (NIR) and X-ray observations of Sagittarius A* (Sgr A*), the electromagnetic manifestation of the ~4x10^6 solar masses super-massive black hole (S…
Discovery of a strong Baldwin effect in mid-infrared AGN lines
S. F. Hoenig, A. Smette, T. Beckert +5
We present the discovery of a Baldwin effect in 8 nearby Seyfert galaxies for the three most prominent mid-infrared forbidden emission lines observable from the ground that are com…
VLTI/MIDI Observations of the Massive Protostellar Candidate NGC 3603 IRS 9A
Stefan Vehoff, Dieter E. A. Nuernberger, Christian A. Hummel +1
We used MIDI, the mid-infrared interferometric instrument of the VLTI, to observe the massive protostellar candidate IRS 9A, located at a distance of about 7 kpc at the periphery o…
The mid IR -- hard X-ray correlation in AGN and its implications for dusty torus models
Hannes Horst, Poshak Gandhi, Alain Smette +1
Context: We investigate mid-infrared and X-ray properties of the dusty torus invoked in the unification scenario for active galactic nuclei. Aims: We use the relation between mid I…
On the orientation of the Sagittarius A* system
L. Meyer, R. Schoedel, A. Eckart +3
The near-infrared emission from the black hole at the Galactic center (Sgr A*) has unique properties. The most striking feature is a suggestive periodic sub-structure that has been…