103 citations · 689 across the 14 of their papers we have counts for
14 papers
CRIRES-POP: a library of high resolution spectra from 1 to 5 microns II. Data reduction and the spectrum of the K giant 10 Leo
C. P. Nicholls, T. Lebzelter, A. Smette +12
Context. High resolution stellar spectral atlases are valuable resources to astronomy. They are rare in the m region for historical reasons, but once available, high reso…
The Mid-infrared E-ELT Imager and Spectrograph (METIS)
Bernhard R. Brandl, Markus Feldt, Alistair Glasse +14
METIS will be among the first generation of scientific instruments on the E-ELT. Focusing on highest angular resolution and high spectral resolution, METIS will provide diffraction…
CRIRES-VLT high-resolution spectro-astrometry as a tool in the search of small structures at the cores of Planetary Nebulae
Mónica W. Blanco Cárdenas, Hans U. Käufl, Martín A. Guerrero +2
The onset of the asymmetry in planetary nebulae (PNe) occurs during the short transition between the end of the asymptotic giant branch (AGB) phase and the beginning of the PN phas…
Exploring the spatial, temporal, and vertical distribution of methane in Pluto's atmosphere
E. Lellouch, C. de Bergh, B. Sicardy +3
High-resolution spectra of Pluto in the 1.66 um region, recorded with the VLT/CRIRES instrument in 2008 (2 spectra) and 2012 (5 spectra), are analyzed to constrain the spatial and…
CRIRES-POP: A library of high resolution spectra in the near-infrared
T. Lebzelter, A. Seifahrt, S. Uttenthaler +10
New instrumental capabilities and the wealth of astrophysical information extractable from the near-infrared wavelength region have led to a growing interest in the field of high r…
Measuring helium abundance difference in giants of NGC 2808
L. Pasquini, P. Mauas, H. U. Kaufl +1
Multiple populations have been detected in several globular clusters (GC) that do not display a spread in metallicity. Unusual features of their CMD can be interpreted in terms of…
High resolution spectroscopy of Pluto's atmosphere: detection of the 2.3 m CH bands and evidence for carbon monoxide
E. Lellouch, C. de Bergh, B. Sicardy +2
The goal is to determine the composition of Pluto's atmosphere and to constrain the nature of surface-atmosphere interactions. We perform high--resolution spectroscopic observation…
Spectrally resolved pure rotational lines of water in protoplanetary disks
Klaus M. Pontoppidan, Colette Salyk, Geoffrey A. Blake +1
We present ground-based high resolution N-band spectra (Δv = 15 km/s) of pure rotational lines of water vapor in two protoplanetary disks surrounding the pre-main sequence stars AS…
Synthesising, using, and correcting for telluric features in high-resolution astronomical spectra
A. Seifahrt, H. U. Käufl, G. Zängl +3
We present a technique to synthesise telluric absorption and emission features both for in-situ wavelength calibration and for their removal from astronomical spectra. While the pr…
Detection of CO in Triton's atmosphere and the nature of surface-atmosphere interactions
E. Lellouch, C. de Bergh, B. Sicardy +2
Triton possesses a thin atmosphere, primarily composed of nitrogen, sustained by the sublimation of surface ices. The goal is to determine the composition of Triton's atmosphere an…
Chemical abundances for 11 bulge stars from high-resolution, near-IR spectra
N. Ryde, B. Gustafsson, B. Edvardsson +10
It is debated whether the Milky Way bulge has the characteristics of a classical bulge sooner than those of a pseudobulge. Detailed abundance studies of bulge stars is a key to inv…
The unusual volatile composition of the Halley-type comet 8P/Tuttle: Addressing the existence of an Inner Oort Cloud
H. Boehnhardt, M. J. Mumma, G. L. Villanueva +4
We measured organic volatiles (CH4, CH3OH, C2H6, H2CO), CO, and water in comet 8P/Tuttle, a comet from the Oort cloud reservoir now in a short-period Halley-type orbit. We compare…
A new Generation of Spectrometer Calibration Techniques based on Optical Frequency Combs
Piet O. Schmidt, Stefan Kimeswenger, Hans Ulrich Kaeufl
Typical astronomical spectrographs have a resolution ranging between a few hundred to 200.000. Deconvolution and correlation techniques are being employed with a significance down…
Discovery of a double ring in the core of eta Carinae
S. Hony, C. Dominik, L. B. F. M. Waters +8
We report the discovery of a double ring structure in the waist of the nebula surrounding eta Carinae. The rings are detected in the mid-IR dust continuum at wavelengths of 7.9, 11…