A study of the interstellar dust distribution in regions of low total column density
Abstract
We present a study of the distribution of interstellar dust and HI, using 100-μm and 21-cm measurements, for two regions of very low total column density. We find that down to the spatial resolution of the HI data (12 arcmin), there is good agreement between dust and neutral gas features. Although the 100-μm data show substantial variance on scales corresponding to the detector resolution (5 arcmin), it is found that this is consistent with that expected from an extrapolation of the 100-μm luminosity function to faint (<1 Jy) sources. We find no evidence for structure in the cirrus on scales of ~5-10 arcmin. The effect on the transmission of soft X-rays arising from such structure that may be present is found to be negligible.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- December 1995
- DOI:
- 10.1093/mnras/277.4.1587
- Bibcode:
- 1995MNRAS.277.1587J
- Keywords:
-
- ISM: CLOUDS;
- DUST;
- EXTINCTION;
- INFRARED: ISM: CONTINUUM;
- RADIO LINES: ISM