Astrophysical: Techniques

  • Publication
    Infrared photometry of a sunspot near the disk center
    A time series of broadband images of a sunspot near the disk center was obtained simultaneously in two wavelength bands at 0.56 mu m and 1.55 mu m at the German...
  • Publication
    Infrared radial velocities of vB 10
    We present radial velocities of the M8V-type, very low-mass star vB 10 obtained at four different epochs between 2001 and 2008. We use high-resolution (R ~ 20...
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    Infrared spectroscopy of fullerene C60/anthracene adducts
    Recent Spitzer Space Telescope observations of several astrophysical environments such as planetary nebulae, reflection nebulae and R Coronae Borealis stars...
  • Publication
    Infrared spectroscopy of hydrogenated fullerenes (fulleranes) at extreme temperatures
    The infrared spectra, as well as the integrated molar absorptivity (Ψ) and the molar extinction coefficient (ɛ) of each infrared transition of the hydrogenated...
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    Infrared standards for ISO. I. A new calibration of mid infrared photometry
    We present N, 8.7 mu m, 9.8 mu m 12.5 mu m and Q bolometry of 26 stars which were observed on the IRTF. These are primarily K giants which have been well...
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    Initial mass function variability from the integrated light of diverse stellar systems
    We present a uniform analysis of the stellar initial mass function (IMF) from integrated light spectroscopy of 15 compact stellar systems (11 globular clusters...
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    Inner bars also buckle. The MUSE TIMER view of the double-barred galaxy NGC 1291
    Double bars are thought to be important features for secular evolution in the central regions of galaxies. However, observational evidence about their origin...
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    Insights into formation scenarios of massive early-type galaxies from spatially resolved stellar population analysis in CALIFA
    We perform spatially resolved stellar population analysis for a sample of 69 early-type galaxies (ETGs) from the CALIFA integral field spectroscopic survey...
  • Publication
    Integral field spectroscopy of the brightest knots of HH 223 in L723
    HH 223 is the optical counterpart of a larger scale H2 outflow, driven by the protostellar source VLA 2A, in L723. Its poorly collimated and rather chaotic...