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Measuring the 8621 A Diffuse Interstellar Band in Gaia DR3 RVS Spectra: Obtaining a Clean Catalog by Marginalizing over Stellar Types

  • Authors: Andrew K. Saydjari, Ana Sofía M. Uzsoy, Catherine Zucker, J. E. G. Peek, Douglas P. Finkbeiner

Andrew K. Saydjari et al 2023 The Astrophysical Journal 954 .

  • Provider: AAS Journals

Caption: Figure 2.

MADGICS DIB detections within the Local Bubble, where color indicates the S/N of the detections. A 2D slice at the midplane (Z = 0 pc) of the boundary for a model of the Local Bubble (Pelgrims et al. 2020; Pelgrims 2022) is shown (dashed gray). In the MADGICS catalog, no confident detections (DIB S/N >5) are present within the Local Bubble model. This is in contrast to previous work, though we find evidence that previously reported detections were associated with stellar features (Figure 1). The interactive version of the figure provides a manipulable 3D view of the DIB detections, Local Bubble model, location of the Sun, and estimates of the dust distribution from Leike et al. (2020), with the ability to turn each layer on/off individually. Hover tools over each DIB detection also provide the DIB S/N, EWDIB, ﹩{v}_{\mathrm{DIB}}^{\mathrm{LSR}}﹩, and σ DIB.(An interactive version of this figure is available.)

An interactive version of this figure is available in the online journal.

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