F. Eisenhauer

Publication List Details

Period

1997 - 2009

Number

156

Co-Authors

High Precision Astrometry with MICADO at the European Extremely Large Telescope (2009)

Trippe, S., Davies, R., Eisenhauer, F., Schreiber, N. M. Foerster, Fritz, T. K., Genzel, R.

In this article we identify and discuss various statistical and systematic effects influencing the astrometric accuracy achievable with MICADO, the near-infrared imaging camera proposed for the...

The orbit of the star S2 around SgrA* from VLT and Keck data (2009)

Gillessen, S., Eisenhauer, F., Fritz, T. K., Bartko, H., Dodds-Eden, K., Pfuhl, O., ...

Two recent papers (Ghez et al. 2008, Gillessen et al. 2009) have estimated the mass of and the distance to the massive black hole in the center of the Milky Way using stellar orbits. The two...

An Extremely Top-Heavy IMF in the Galactic Center Stellar Disks (2009)

Bartko, H., Martins, F., Trippe, S., Fritz, T. K., Genzel, R., Ott, T., ...

We present new observations of the nuclear star cluster in the central parsec of the Galaxy with the adaptive optics assisted, integral field spectrograph SINFONI on the ESO/VLT. Our work allows the...

Evidence for X-ray synchrotron emission from simultaneous mid-IR to X-ray observations of a strong Sgr A* flare (2009)

Dodds-Eden, K., Porquet, D., Trap, G., Quataert, E., Haubois, X., Gillessen, S., ...

This paper reports measurements of Sgr A* made with NACO in L' -band (3.80 um), Ks-band (2.12 um) and H-band (1.66 um) and with VISIR in N-band (11.88 um) at the ESO VLT, as well as with XMM-Newton...

The SINS survey: modeling the dynamics of z~2 galaxies and the high-z Tully-Fisher relation (2009)

Cresci, G., Hicks, E. K. S., Genzel, R., Schreiber, N. M. Foerster, Davies, R., Bouche', N., ...

We present the modeling of SINFONI integral field dynamics of 18 star forming galaxies at z ~ 2 from Halpha line emission. The galaxies are selected from the larger sample of the SINS survey, based...

Evidence for Warped Disks of Young Stars in the Galactic Center (2008)

Bartko, H., Martins, F., Fritz, T. K., Genzel, R., Levin, Y., Perets, H. B., ...

The central parsec around the super-massive black hole in the Galactic Center hosts more than 100 young and massive stars. Outside the central cusp (R~1") the majority of these O and Wolf-Rayet (WR)...

From Rings to Bulges: Evidence for Rapid Secular Galaxy Evolution at z ~ 2 from Integral Field Spectroscopy in the SINS Survey (2008)

Genzel, R., Burkert, A., Bouché, N., Cresci, G., Förster Schriber, N. M., Shapley, A., ...

We present Hα integral field spectroscopy of well-resolved, UV/optically selected z ~ 2 star-forming galaxies as part of the SINS survey with SINFONI on the ESO VLT. Our laser guide star adaptive...

Prospects for testing the nature of Sgr A*'s NIR flares on the basis of current VLT- and future VLTI-observations (2008)

Hamaus, N., Paumard, T., Müller, T., Gillessen, S., Eisenhauer, F., Trippe, S., ...

Sagittarius A*, the supermassive compact object at the center of the Galaxy, exhibits outbursts in the near infrared and X-ray domains. These flares are likely due to energetic events very close to...

Monitoring stellar orbits around the Massive Black Hole in the Galactic Center (2008)

Gillessen, S., Eisenhauer, F., Trippe, S., Alexander, T., Genzel, R., Martins, F., ...

We present the results of 16 years of monitoring stellar orbits around the massive black hole in center of the Milky Way using high resolution NIR techniques. This work refines our previous analysis...

Kinematics of the old stellar population at the Galactic Center (2008)

Trippe, S., Gillessen, S., Gerhard, O. E., Bartko, H., Fritz, T. K., Maness, H. L., ...

We aim at a detailed description of the kinematic properties of the old, (several Gyrs) late-type CO-absorption star population among the Galactic centre (GC) cluster stars. We applied AO-assisted,...

Molecular gas streamers feeding and obscuring the active nucleus of NGC1068 (2008)

Sanchez, F. Mueller, Davies, R. I., Genzel, R., Tacconi, L. J., Eisenhauer, F., Hicks, E. K. S., ...

We report the first direct observations of neutral, molecular gas streaming in the nucleus of NGC1068 on scales of

LIINUS/SERPIL: a design study for interferometric imaging spectroscopy at the LBT (2008)

Sanchez, F. Mueller, Gal, C., Eisenhauer, F., Krabbe, A., Haug, M., Iserlohe, C., ...

We present two design concepts and the science drivers of a proposed near-infrared interferometric integral field spectrograph for the LBT. This instrument will expand the capabilities of the...

GRAVITY: getting to the event horizon of Sgr A* (2008)

Eisenhauer, F., Perrin, G., Brandner, W., Straubmeier, C., Richichi, A., Gillessen, S., ...

We present the second-generation VLTI instrument GRAVITY, which currently is in the preliminary design phase. GRAVITY is specifically designed to observe highly relativistic motions of matter close...

Study of the Science Capabilities of PRIMA in the Galactic Center (2008)

Bartko, H., Pfuhl, O., Eisenhauer, F., Genzel, R., Gillessen, S., Rabien, S., ...

The Phase-Referenced Imaging and Micro-arcsecond Astrometry (PRIMA) facility is scheduled for installation in the Very Large Telescope Interferometer observatory in Paranal, Chile, in the second half...

From rings to bulges: evidence for rapid secular galaxy evolution at z~2 from integral field spectroscopy in the SINS survey (2008)

Genzel, R., Burkert, A., Bouche, N., Cresci, G., Schreiber, N. M. Foerster, Shapley, A., ...

We present Ha integral field spectroscopy of well resolved, UV/optically selected z~2 star-forming galaxies as part of the SINS survey with SINFONI on the ESO VLT. Our laser guide star adaptive...

Kinemetry of SINS High-Redshift Star-Forming Galaxies: Distinguishing Rotating Disks from Major Mergers (2008)

Shapiro, K. L., Genzel, R., Schreiber, N. M. Forster, Tacconi, L. J., Bouche, N., Cresci, G., ...

We present a simple set of kinematic criteria that can distinguish between galaxies dominated by ordered rotational motion and those involved in major merger events. Our criteria are based on the...

Near-infrared observations of Sagittarius A (2008)

F. Eisenhauer, F. Martins, R. Genzel, S. Gillessen, S. Trippe, T. Ott, ...

We present and discuss recent near infrared observations of Sagittarius A, the supermassive black hole in the centre of our Galaxy. Since 2003 this source has been observed photometrically,...

Fringe detection laser metrology for differential astrometric stellar interferometers (2008)

Rabien, S., Gillessen, S., Ziegleder, J., Thiel, Markus, Gräter, Alex, Haug, Marcus, ...

Differential measurements with dual feed stellar interferometers using large baselines can deliver extremely accurate astrometric data. Separating the phase difference measured on the stars from the...

Coupling LBT's double pupil into optical fibers (2008)

Müller Sánchez, F., Eisenhauer, F., Haug, M., Gál, C., Krabbe, A., Herbst, T. M.

In the context of interferometric integral field spectroscopy at the LBT, we have investigated the physics of coupling light from a double pupil into optical fibers. Previous fiber-fed astronomical...

LIINUS/SERPIL: a design study for interferometric imaging spectroscopy at the LBT (2008)

Müller Sánchez, F., Gál, C., Eisenhauer, F., Krabbe, A., Haug, M., Iserlohe, C., ...

We present two design concepts and the science drivers of a proposed near-infrared interferometric integral field spectrograph for the LBT. This instrument will expand the capabilities of the...

Fringe tracking optimization with 4 beams: application to GRAVITY (2008)

Houairi, K., Cassaing, F., Perrin, G., Eisenhauer, F., Brandner, W., Straubmeier, C., ...

GRAVITY, a VLTI second generation instrument, requires a fringe tracker combining four beams. Its design is driven by the observation of the Galactic Center and implies stringent fringe sensor...

LIINUS: a design study for interferometric imaging spectroscopy at the LBT (2008)

Gál, C., Müller-Sánchez, F., Krabbe, A., Eisenhauer, F., Iserlohe, C., Haug, M., ...

We present a feasible design concept and the science drivers for the proposed near-infrared interferometric integral field spectrograph at the LBT. Combining interferometric resolution with an...

GRAVITY: the AO-assisted, two-object beam-combiner instrument for the VLTI (2008)

Eisenhauer, F., Perrin, G., Rabien, S., Eckart, A., Léna, P., Genzel, R., ...

We present the proposal for the infrared adaptive optics (AO) assisted, two-object, high-throughput, multiple-beam-combiner GRAVITY for the VLTI. This instrument will be optimized for...

GRAVITY: microarcsecond astrometry and deep interferometric imaging with the VLTI (2008)

Eisenhauer, F., Perrin, G., Straubmeier, C., Brandner, W., Boehm, A., Cassaing, F., ...

We present the adaptive optics assisted, near-infrared VLTI instrument GRAVITY for precision narrow-angle astrometry and interferometric phase referenced imaging of faint objects. With its two fibers...

GRAVITY: getting to the event horizon of Sgr A* (2008)

Eisenhauer, F., Perrin, G., Brandner, W., Straubmeier, C., Richichi, A., Gillessen, S., ...

We present the second-generation VLTI instrument GRAVITY, which currently is in the preliminary design phase. GRAVITY is specifically designed to observe highly relativistic motions of matter close...

Dynamical Properties of z ~ 2 Star-forming Galaxies and a Universal Star Formation Relation (2007)

Bouché, N., Cresci, G., Davies, R., Eisenhauer, F., Förster Schreiber, N. M., Genzel, R., ...

We present the first comparison of the dynamical properties of different samples of z ~ 1.4-3.4 star-forming galaxies from spatially resolved imaging spectroscopy from SINFONI/VLT integral field...

On the nature of the fast moving star S2 in the Galactic Center (2007)

Martins, F., Gillessen, S., Eisenhauer, F., Genzel, R., Ott, T., Trippe, S.

We analyze the properties of the star S2 orbiting the supermassive black hole at the center of the Galaxy. A high quality SINFONI H and K band spectrum obtained from coadding 23.5 hours of...

Integral-field spectroscopy of a Lyman-Break Galaxy at z=3.2: evidence for merging (2007)

Nesvadba, N. P. H., Lehnert, M. D., Davies, R. I., Verma, A., Eisenhauer, F.

We present spatially-resolved, rest-frame optical spectroscopy of a z~3 Lyman-break galaxy (LBG), Q0347-383 C5, obtained with SINFONI on the VLT. This galaxy, among the ~10% brightest LBGs, is only...

The most massive stars in the Arches cluster (2007)

Martins, F., Hillier, D. J., Paumard, T., Eisenhauer, F., Ott, T., Genzel, R.

We study a sample composed of 28 of the brightest stars in the Arches cluster. We analyze K-band spectra obtained with the integral field spectrograph SINFONI on the VLT. Atmosphere models computed...

The Initial Mass Function of the Massive Star-forming Region NGC 3603 from Near-Infrared Adaptive Optics observations (2007)

Harayama, Y., Eisenhauer, F., Martins, F.

We study the initial mass function (IMF) of one of the most massive Galactic star-forming regions NGC 3603 to answer a fundamental question in current astrophysics: is the IMF universal, or does it...

Evidence for a Long-Standing Top-Heavy IMF in the Central Parsec of the Galaxy (2007)

Maness, H., Martins, F., Trippe, S., Genzel, R., Graham, J. R., Sheehy, C., ...

We classify 329 late-type giants within 1 parsec of Sgr A*, using the adaptive optics integral field spectrometer SINFONI on the VLT. These observations represent the deepest spectroscopic data set...

Dynamical Properties of z~2 Star Forming Galaxies and a Universal Star Formation Relation (2007)

Bouche, N., Cresci, G., Davies, R., Eisenhauer, F., Schreiber, N. M. Forster, Genzel, R., ...

We present the first comparison of the dynamical properties of different samples of z~1.4-3.4 star forming galaxies from spatially resolved imaging spectroscopy from SINFONI/VLT integral field...

Stellar and wind properties of massive stars in the central parsec of the Galaxy (2007)

Martins, F., Genzel, R., Hillier, D. J., Eisenhauer, F., Paumard, T., Gillessen, S., ...

We study the stellar and wind properties of massive stars in the central cluster of the Galaxy. We use non-LTE atmosphere models including winds and line-blanketing to fit their H and K band spectra...

Intense Star-formation and Feedback at High Redshift: Spatially-resolved Properties of the z=2.6 Submillimeter Galaxy SMMJ14011+0252 (2006)

Nesvadba, N. P. H., Lehnert, M. D., Genzel, R., Eisenhauer, F., Baker, A. J., Seitz, S., ...

We present a detailed analysis of the spatially-resolved properties of the lensed submillimeter galaxy SMMJ14011+0252 at z=2.56, combining deep near-infrared integral-field data obtained with SPIFFI...

A polarised infrared flare from Sagittarius A* and the signatures of orbiting plasma hotspots (2006)

Trippe, S., Paumard, T., Ott, T., Gillessen, S., Eisenhauer, F., Martins, F., ...

In this article we summarise and discuss the infrared, radio, and X-ray emission from the supermassive black hole in the Galactic Centre, SgrA*. We include new results from near-infrared polarimetric...

GCIRS 16SW: A massive eclipsing binary in the Galactic center (2006)

Martins, F, Trippe, S, Paumard, T, Ott, T, Genzel, R, Rauw, Grégor, ...

We report on the spectroscopic monitoring of GCIRS 16SW, an Ofpe/WN9 star and LBV candidate in the central parsec of the Galaxy. SINFONI observations show strong daily spectroscopic changes in the K...

The rapid formation a large rotating disk galaxy three billion years after the Big Bang (2006)

Genzel, R., Tacconi, L., Eisenhauer, F., Schreiber, N. M. Forster, Cimatti, A., Daddi, E., ...

[Abridged] Over the past two decades observations and theoretical simulations have established a global frame-work of galaxy formation and evolution in the young Universe. Galaxies formed as baryonic...

GCIRS16SW: a massive eclipsing binary in the Galactic Center (2006)

Martins, F., Trippe, S., Paumard, T., Ott, T., Genzel, R., Rauw, G., ...

We report on the spectroscopic monitoring of GCIRS16SW, an Ofpe/WN9 star and LBV candidate in the central parsec of the Galaxy. SINFONI observations show strong daily spectroscopic changes in the K...

GRAVITY: The adaptive optics assisted, two object beam combiner for the VLTI (2006)

Gillessen, S., Perrin, G., Brandner, W., Straubmeier, C., Eisenhauer, F., Rabien, S., ...

We present the adaptive optics assisted, near-infrared VLTI instrument - GRAVITY - for precision narrow-angle astrometry and interferometric phase referenced imaging of faint objects. Precision...

Lyman Break Galaxies Under a Microscope: The Small Scale Dynamics and Mass of an Arc in the Cluster 1E0657-56 (2006)

Nesvadba, N. P. H., Lehnert, M. D., Eisenhauer, F., Genzel, R., Seitz, S., Davies, R. I., ...

Using the near-infrared integral-field spectrograph SPIFFI on the VLT, we have studied the spatially-resolved dynamics in the z=3.2 strongly lensed galaxy 1E0657-56 ``arc+core''. The lensing...

Extreme gas kinematics in the z=2.2 powerful radio galaxy MRC1138-262: Evidence for efficient AGN feedback in the early Universe? (2006)

Nesvadba, N. P. H., Lehnert, M. D., Eisenhauer, F., Gilbert, A., Tecza, M., Abuter, R.

To explain the properties of the most massive low-redshift galaxies and the shape of their mass function, recent models of galaxy evolution include strong AGN feedback to complement starburst-driven...

SINFONI adaptive optics integral field spectroscopy of the Circinus Galaxy (2006)

Sanchez, F. Mueller, Davies, R. I., Eisenhauer, F., Tacconi, L. J., Genzel, R., Sternberg, A.

Aims. To investigate the star formation activity and the gas and stellar dynamics on scales of a few parsecs in the nucleus of the Circinus Galaxy. Methods.Using the adaptive optics near infrared...

The Star-Forming Torus and Stellar Dynamical Black Hole Mass in the Seyfert 1 Nucleus of NGC3227 (2006)

Davies, R., Thomas, J., Genzel, R., Sanchez, F. Mueller, Tacconi, L., Sternberg, A., ...

We report R~4300 VLT SINFONI adaptive optics integral field K-band spectroscopy of the nucleus of the Seyfert 1 galaxy NGC3227 at a spatial resolution of 0.085" (7pc). We present the morphologies and...

SINFONI Integral Field Spectroscopy of z~2 UV-selected Galaxies: Rotation Curves and Dynamical Evolution (2006)

Schreiber, N. M. Forster, Genzel, R., Lehnert, M. D., Bouche, N., Verma, A., Erb, D. K., ...

We present 0.5" resolution near-IR integral field spectroscopy of the Ha line emission of 14 z~2 UV-selected BM/BX galaxies obtained with SINFONI at ESO/VLT. The mean Ha half-light radius r_1/2 is...

Atmospheric Turbulence Compensation with Laser Phase Shifting Interferometry (2006)

Rabien, S., Eisenhauer, F., Genzel, R., Davies, R. I., Ott, T.

Laser guide stars with adaptive optics allow astronomical image correction in the absence of a natural guide star. Single guide star systems with a star created in the earth's sodium layer can be...

The Two Young Star Disks in the Central Parsec of the Galaxy: Properties, Dynamics and Formation (2006)

Paumard, T., Genzel, R., Martins, F., Nayakshin, S., Beloborodov, A. M., Levin, Y., ...

We report the definite spectroscopic identification of 41 OB supergiants, giants and main sequence stars in the central parsec of the Galaxy. Detection of their absorption lines have become possible...

Clockwise Stellar Disk and the Dark Mass in the Galactic Center (2006)

Beloborodov, A. M., Levin, Y., Eisenhauer, F., Genzel, R., Paumard, T., Gillessen, S., ...

Two disks of young stars have recently been discovered in the Galactic Center. The disks are rotating in the gravitational field of the central black hole at radii r=0.1-0.3 pc and thus open a new...

GRAVITY: the adaptive-optics-assisted two-object beam combiner instrument for the VLTI (2006)

Gillessen, S., Perrin, G., Brandner, W., Straubmeier, C., Eisenhauer, F., Rabien, S., ...

We present the adaptive optics assisted, near-infrared VLTI instrument - GRAVITY - for precision narrow-angle astrometry and interferometric phase referenced imaging of faint objects. Precision...

LIINUS/SERPIL: a design study for interferometric imaging spectroscopy at the LBT (2006)

Gál, C., Müller-Sánchez, F., Krabbe, A., Eisenhauer, F., Iserlohe, C., Haug, M., ...

LIINUS/SERPIL is a design study to augment LBTs interferometric beam combiner camera LINC-NIRVANA with imaging spectroscopy. The FWHM of the interferometric main beam at 1.5 micron will be about 10...

SINFONI data reduction software (2006)

Abuter, R., Schreiber, J., Eisenhauer, F., Ott, T., Horrobin, M.J., Gillesen, S.

The adaptive optics assisted near-infrared integral-field spectrograph SINFONI has been successfully commissioned at the ESO VLT and has started science operations early 2005. Its data reduction...

Variations in the spectral slope of Sgr A* during a NIR flare (2005)

Gillessen, S., Eisenhauer, F., Quataert, E., Genzel, R., Paumard, T., Trippe, S., ...

We have observed a bright flare of Sgr A* in the near infrared with the adaptive optics assisted integral field spectrometer SINFON. Within the uncertainties, the observed spectrum is featureless and...

GCIRS34W: An irregular variable in the Galactic Centre (2005)

Trippe, S., Martins, F., Ott, T., Paumard, T., Abuter, R., Eisenhauer, F., ...

We report the results of time-resolved photometric and spectroscopic near-infrared observations of the Ofpe/WN9 star and LBV candidate GCIRS34W in the Galactic Centre star cluster. Diffraction...

GRAVITY: The AO-Assisted, Two-Object Beam-Combiner Instrument (2005)

Eisenhauer, F., Perrin, G., Rabien, S., Eckart, A., Lena, P., Genzel, R., ...

We present the proposal for the infrared adaptive optics (AO) assisted, two-object, high-throughput, multiple-beam-combiner GRAVITY for the VLTI. This instrument will be optimized for...

Near IR diffraction-limited integral-field SINFONI spectroscopy of the Circinus galaxy (2005)

Sanchez, F. Mueller, Davies, R. I., Eisenhauer, F., Tacconi, L. J., Genzel, R.

Using the adaptive optics assisted near infrared integral field spectrometer SINFONI on the VLT, we have obtained observations of the Circinus galaxy on parsec scales. The morphologies of the...

SINFONI in the Galactic Center: young stars and IR flares in the central light month (2005)

Eisenhauer, F., Genzel, R., Alexander, T., Abuter, R., Paumard, T., Ott, T., ...

We report 75 milli-arcsec resolution, near-IR imaging spectroscopy within the central 30 light days of the Galactic Center [...]. To a limiting magnitude of K~16, 9 of 10 stars in the central 0.4...

Census of the Galactic Centre early-type stars using spectro-imagery (2004)

Paumard, T., Genzel, R., Maillard, J. P., Ott, T., Morris, M., Eisenhauer, F., ...

The few central parsecs of the Galaxy are known to contain a surprising population of early-type stars, including at least 30 Wolf-Rayet stars and luminous blue variables (LBV), identified thanks to...

SPIFFI observations of the starburst SMMJ14011+0252: Already old, fat, and rich by z = 2.565 (2004)

Tecza, M., Baker, A. J., Davies, R. I., Genzel, R., Lehnert, M. D., Eisenhauer, F., ...

Using the SPectrometer for Infrared Faint Field Imaging (SPIFFI) on the ESO VLT, we have obtained J, H, and K band integral field spectroscopy of the z = 2.565 luminous submillimeter galaxy...

Submillimeter Galaxies as Tracers of Mass Assembly at Large M (2004)

Genzel, R., Baker, A. J., Ivison, R. J., Bertoldi, F., Blain, A. W., Chapman, S. C., ...

Luminous submillimeter galaxies (SMGs) have been known for some time to produce a substantial fraction of the far-IR/submillimeter background. New observations show that these systems are not only...

A Geometric Determination of the Distance to the Galactic Center (2003)

Eisenhauer, F., Schoedel, R., Genzel, R., Ott, T., Tecza, M., Abuter, R., ...

We report new astrometric and spectroscopic observations of the star S2 orbiting the massive black hole in the Galactic Center, which were taken at the ESO VLT with the adaptive optics assisted,...

SINFONI - Integral Field Spectroscopy at 50 milli-arcsecond resolution with the ESO VLT (2003)

Eisenhauer, F., Bonnet, H., Abuter, R., Bickert, K., Bianca-Marchet, F., Brynnel, J., ...

SINFONI is an adaptive optics assisted near-infrared integral field spectrometer for the ESO VLT. The Adaptive Optics Module (built by the ESO Adaptive Optics Group) is a 60-elements curvature-sensor...

The Stellar Cusp Around the Supermassive Black Hole in the Galactic Center (2003)

Genzel, R., Schoedel, R., Ott, T., Eisenhauer, F., Hofmann, R., Lehnert, M., ...

We analyze deep near-IR adaptive optics imaging as well as new proper motion data of the nuclear star cluster of the Milky Way. The surface density distribution of faint stars peaks within 0.2" of...

The stellar cusp around the supermassive black hole in the galactic center (2003)

Genzel, R., Schödel, R., Ott, T., Eisenhauer, F., Hofmann, R., Lehnert, M., ...

We analyze deep near-IR adaptive optics imaging (taken with NAOS/CONICA on the Very Large Telescope at the European Southern Observatory, Chile), as well as new proper-motion data of the nuclear star...

Scientific Potential of Enhancing the Integral-Field Spectrometer SPIFFI with a Large Detector and High Spectral Resolution (2001)

Eisenhauer, F., Thatte, N., De Zeeuw, T., Tecza, M., Franx, M., ...

SPIFFI is the near-infrared integral-field spectrometer for the VLT. Assisted by the SINFONI adaptive optics module, the instrument will be offered to the astronomical community in 2004. We outline...

CROMOS: A cryogenic near-infrared, multi-object spectrometer for the VLT (2001)

Genzel, R., Hofmann, R., Tomono, D., Thatte, N., Eisenhauer, F., Lehnert, M., ...

We discuss a cryogenic, multi-object near-infrared spectrometer as a second generation instrument for the VLT. The spectrometer combines 20 to 40 independent integral eld units (IFUs), which can be...

Multi-Conjugate Adaptive Optics with Laser Guide Stars (2001)

Davies, R. I., Bonaccini, D., Rabien, S., Hackenberg, W., Ott, T., Hippler, S., ...

The Laser Guide Star Facility for the VLT will be commissioned during 2003. This, of course, can only be the first step towards enhancing the scientific output of the VLT through adaptive optics. So...

NGC 3603 - a Local Template for Massive Young Clusters (2001)

Brandl, B., Brandner, W., Eisenhauer, F., Moffat, A. F. J., Palla, F., Zinnecker, H.

We present a study of the star cluster associated with the massive Galactic HII region NGC3603 based on near-IR broad-- and narrowband observations taken with ISAAC/VLT under excellent seeing...

Adaptive Optics Integral Field Spectroscopy of the Young Stellar Objects in LkH_alpha 225 (2001)

Davies, R. I., Tecza, M., Looney, L. W., Eisenhauer, F., Tacconi-Garman, L. E., Thatte, N., ...

Progress in understanding the embedded stars in LkHa225 has been hampered by their variability, making it hard to compare data taken at different times, and by the limited resolution of the available...

The Impact of Adaptive Optics on Star Formation Research (2000)

Feldt, M., Kasper, M., Eisenhauer, F., Hippler, S.

In this paper, we discuss the benefits of ground-based, adaptive optics (AO) aided observations for star formation research. After outlining the general advantages, we present results obtained during...

A new era of spectroscopy: SINFONI, NIR integral field spectroscopy at the diffraction limit of an 8m telescope (2000)

Mengel, S., Eisenhauer, F., Tecza, M., Thatte, N., Roehrle, C., Bickert, K., ...

SINFONI, the SINgle Faint Object Near-infrared Investigation, is an instrument for the Very Large Telescope (VLT), which will start its operation mid 2002 and allow for the first time near infrared...

Imaging the Universe in 3D with the VLT: The Next Generation Field Spectrometer SPIFFI (2000)

Eisenhauer, F., Tecza, M., Mengel, S., Thatte, N., Roehrle, C., Bickert, K., ...

We present SPIFFI, the integral field spectrometer for the VLT. This instrument allows simultaneous observation of infrared spectra in more than 1000 image points of a two dimensional field. With its...

Near-Infrared-Spectroscopy with Extremely Large Telescopes: Integral-Field- versus Multi-Object-Instruments (2000)

Eisenhauer, F., Tecza, M., Thatte, N., Mengel, S., Hofmann, R., Genzel, R.

Integral-field-spectroscopy and multi-object-spectroscopy provide the high multiplex gain required for efficient use of the upcoming generation of extremely large telescopes. We present instrument...

Low-mass stars in the massive HII region NGC 3603 - Deep NIR imaging with ANTU/ISAAC (1999)

Brandl, B., Brandner, W., Eisenhauer, F., Moffat, A. F. J., Palla, F., Zinnecker, H.

We have observed NGC 3603, the most massive visible HII region known in the Galaxy, with ANTU(VLT1)/ISAAC in the near-infrared (NIR) J_s, H, and K_s bands. Our observations are the most sensitive...