activity
20092026
most citedSource-intrinsic near-infrared properties of Sgr A*: Total intensity measurements

113 citations · 1.1k across the 46 of their papers we have counts for

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astro-ph.IM2024★ 5 cited

The MICADO first light imager for the ELT: off-axis performance of PSF reconstruction

Matteo Simioni, Daniel Jodlbauer, Carmelo Arcidiacono +14

The highest scientific return, for adaptive optics (AO) observations, is achieved with a reliable reconstruction of the PSF. This is especially true for MICADO@ELT. In this present…

astro-ph.IM2012★ 8 cited

Flare emission from Sagittarius A*

A. Eckart, M. Garcia-Marin, S. N. Vogel +18

Based on Bremer et al. (2011) and Eckart et al. (2012) we report on simultaneous observations and modeling of the millimeter, near-infrared, and X-ray flare emission of the source…

astro-ph.IM2012★ 2 cited

Beating the confusion limit: The necessity of high angular resolution for probing the physics of Sagittarius A* and its environment: Opportunities for LINC-NIRVANA (LBT), GRAVITY (VLTI) and and METIS (E-ELT)

A. Eckart, N. Sabha, G. Witzel +16

The super-massive 4 million solar mass black hole (SMBH) SgrA* shows variable emission from the millimeter to the X-ray domain. A detailed analysis of the infrared light curves all…

astro-ph.IM2012★ 97 cited

Near-infrared proper motions and spectroscopy of infrared excess sources at the Galactic Center

A. Eckart, K. Muzic, S. Yazici +11

There are a number of faint compact infrared excess sources in the central stellar cluster of the Milky Way. Their nature and origin is unclear. In addition to several isolated obj…

astro-ph.IM2010★ 51 cited

The instrumental polarization of the Nasmyth focus polarimetric differential imager NAOS/CONICA (NACO) at the VLT - Implications for time-resolved polarimetric measurements of Sgr A*

G. Witzel, A. Eckart, R. M. Buchholz +9

We report on the results of calibrating and simulating the instrumental polarization properties of the ESO VLT adaptive optics camera system NAOS/CONICA (NACO) in the Ks-band. We u…