51 citations · 76 across the 3 of their papers we have counts for
3 papers
Broad-band spectral energy distribution of 3000 Angstroem break quasars from the Sloan Digital Sky Survey
H. Meusinger, P. Schalldach, A. Mirhosseini +1
The Sloan Digital Sky Survey (SDSS) discovered a few unusual quasars with a characteristic break in the continuum around 3000 A that neither shows the typical structure of broad ab…
ASPECT: A spectra clustering tool for exploration of large spectral surveys
Aick in der Au, Helmut Meusinger, Philipp Schalldach +1
We present the novel, semi-automated clustering tool ASPECT for analysing voluminous archives of spectra. The heart of the program is a neural network in form of Kohonen's self-org…
Unusual quasars from the Sloan Digital Sky Survey selected by means of Kohonen self-organising maps
H. Meusinger, P. Schalldach, R. -D. Scholz +4
We exploit the spectral archive of the Sloan Digital Sky Survey (SDSS) Data Release 7 to select unusual quasar spectra. The selection method is based on a combination of the power…