Abstract
Detailed IRAS contour maps in the 60 and 100 μm wavebands are presented for a small region of sky towards which ‘high-velocity gas components’ (HVC) have been clearly identified in spectra of background stars obtained with the IUE satellite. There is a coincidence in direction on the sky between the strongest regions of absorption produced by HVC gas and compact regions of brightest IR emission. However, there is no clear evidence at present for identifying the HVC directly with the IR emission due to insufficient spatial informatin along the lines-of-sight examined. A comparison ofHi column densities obtained from both the 100 μm emission and colour excess data indicates that dust emission, rather than atomic line emission, is the dominant contribution to the IRAS observations in the sightlines considered. The angular sizes of the brightest IR emitting regions are small and are of approximate dimensions ⪝0.5×0.3 pc2 if located at a distance ⪝220 pc estimated for the HVC gas.
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Bates, B., Brown-Kerr, W., and Giaretta, D. L.: 1982,3rd European IUE Conference, ESA SP-176, p. 403.
Bates, B., Brown-Kerr, W., Giaretta, D. L., and Keenan, F. P.: 1983,Astron. Astrophys. 122, 64.
Bates, B., Brown-Kerr, W., Giaretta, D. L., and Keenan, F. P.: 1984,4th European IUE Conference, ESA SP-218, p. 145.
Bates, B., Catney, M. G., and Keenan, F. P.: 1986,Adv. Space Res. 6, 47.
Bochkarev, N. G.: 1987,Astrophys. Space Sci. 138, 229.
Bohlin, R. C., Hill, J. K., Jenkins, E., Savage, B. D., Snow, T. P., Spitzer, L., and York, D. G.: 1983,Astrophys. J. Suppl. 51, 277.
Boulanger, F., Baud, B., and van Albada, G. D.: 1985,Astron. Astrophys. 144, L9.
De Vries, C. P. and Le Poole, R. S.: 1985,Astron. Astrophys. 145, L7.
Fong, R., Jones, L. R., Shanks, T., Stevenson, P. R. F., Strong, A. W., Dawe, J. A., and Murray, J. D.: 1987,Monthly Notices Roy. Astron. Soc. 224, 1059.
Frisch, P. C. and York, D. G.: 1983,Astrophys. J. 271, L59.
Harwit, M., Houck, J. R., and Stacey, G. J.: 1986,Nature 319, 646.
Keenan, F. P., Bates, B., and Catney, M. G.: 1986a,New Insights in Astrophysics, ESA SP-263, p. 565.
Keenan, F. P., Brown, P. J. F., and Lennong, D. J.: 1986b,Astron. Astrophys. 155, 333.
Keenan, F. P., Lennon, D. J., Johnson, C. T., and Kingston, A. E.: 1986c,Monthly Notices Roy. Astron. Soc. 220, 571.
Keenan, F. P., Johnson, C. T., Kingston, A. E., and Dufton, P. L.: 1985,Monthly Notices Roy. Astron. Soc.,214, 37P.
Low, F. J. et al.: 1984,Astrophys. J. 278, L19.
Paresce, F.: 1984,Astron. J. 89, 1022.
Phillips, A. P., Gondhalekhar, P. M., and Blades, J. C.: 1981,Monthly Notices Roy. Astron. Soc. 195, 485.
Rowan-Robinson, M.: 1986,Monthly Notices Roy. Astron. Soc. 219, 737.
Stewart, B.: 1986, Starlink User Note 91.1
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Bates, B., Catney, M.G. & Keenan, F.P. Iras maps for a region of sky containing nearby high-velocity gas, identified from IUE spectra. Astrophys Space Sci 146, 195–200 (1988). https://doi.org/10.1007/BF00656994
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DOI: https://doi.org/10.1007/BF00656994