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Bozzetto, Roger

doi:10.4000/books.pur.48227

Cited by 1 publication

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“…The next step was to disperse the points from the lines upon which they were projected in such a way as to simulate the dispersion of the adopted 6 cm data. This was achieved by applying the kernel density smoothing in 1D from Bozzetto et al (2017). From the adopted 6 cm data we reconstructed the smooth probability density distribution of the orthogonal distances (offsets) from the Lo line (Fig.…”

Section: σ-D Sensitivity Selection Effectsmentioning

confidence: 99%

“…For each Σ-D data sample we applied both Σ offset and orthogonal offset analysis. In addition, we reconstructed the Σ-D probability density function (PDF) using bootstrap based kernel density smoothing (for details see Bozzetto et al 2017, and references therein). The reconstruction of the Σ-D PDF provides a better insight into observational biases and evolutionary features of each sample (see also Vukotić et al 2014, and references therein).…”

Section: σ − D Relation For Pnementioning

confidence: 99%

“…For data in two dimensions a Gaussian product kernel was used. The optimal smoothing bandwidths (h) were selected by minimising the bootstrap integrated mean squared error (BIMSE) (for details see Bozzetto et al 2017).…”

Section: σ − D Relation For Pnementioning

confidence: 99%

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Radio Planetary Nebulae in the Large Magellanic Cloud

Leverenz

Filipović

Vukotić

et al. 2017

Monthly Notices of the Royal Astronomical Society

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We present 21 new radio-continuum detections at catalogued planetary nebula (PN) positions in the Large Magellanic Cloud (LMC) using all presently available data from the Australia Telescope Online Archive at 3, 6, 13 and 20 cm. Additionally, 11 previously detected LMC radio PNe are re-examined with 7 detections confirmed and reported here. An additional three PNe from our previous surveys are also studied. The last of the 11 previous detections is now classified as a compact H ii region which makes for a total sample of 31 radio PNe in the LMC. The radio-surface brightness to diameter (Σ-D) relation is parametrised as Σ ∝ D −β . With the available 6 cm Σ-D data we construct Σ-D samples from 28 LMC PNe and 9 Small Magellanic Cloud (SMC) radio detected PNe. The results of our sampled PNe in the Magellanic Clouds (MCs) are comparable to previous measurements of the Galactic PNe. We obtain β = 2.9 ± 0.4 for the MC PNe compared to β = 3.1 ± 0.4 for the Galaxy. For a better insight into sample completeness and evolutionary features we reconstruct the Σ-D data probability density function (PDF). The PDF analysis implies that PNe are not likely to follow linear evolutionary paths. To estimate the significance of sensitivity selection effects we perform a Monte Carlo sensitivity simulation on the Σ-D data. The results suggest that selection effects are significant for values larger than β ∼ 2.6 and that a measured slope of β = 2.9 should correspond to a sensitivity-free value of ∼ 3.4.

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Section: σ-D Sensitivity Selection Effectsmentioning

confidence: 99%

Section: σ − D Relation For Pnementioning

confidence: 99%