Deuterium Depletion and Magnesium Enhancement in the Local Disk

• Autorzy: Gnaciński P.
• Języki publikacji: EN

Abstrakty

EN

The local disk deuterium is known to be depleted in comparison to the local bubble. We used Hubble Space Telescope (HST) spectra to obtain column densities of Si, Mg and Fe. We compared normalized column densities of these elements in the directions with high and low deuterium abundances. We show, that the lines of sight that are depleted in deuterium, are enhanced in magnesium. This observation implicates that astration is responsible for both deuterium depletion and magnesium enhancement.

Słowa kluczowe

EN

ISM: atoms; ISM: abundances; ultraviolet: ISM

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2005
• Tom: Vol. 55, No. 4
• Strony: 407--413
• Opis fizyczny: Bibliogr. 14 poz., tab., wykr.

Twórcy

autor

Gnaciński P.

• Institute of Theoretical Physics and Astrophysics, University of Gdańsk, ul. Wita Stwosza 57, 80-952 Gdańsk, Poland

Bibliografia

• Brandt, J.C., et al. 1999, Astron. J., 117, 400.
• Cardelli, J.A., Ebbets, D.C., and Savage, B.D. 1990, Astrophys. J., 365, 789.
• Fitzpatrick, E.L. 1997, Astrophys. J. Letters, 482, 199.
• Howk, J.Ch., Savage, B.D., and Fabian, D. 1999, Astrophys. J., 525, 253.
• Kim Quijano, J., et al. 2003, "STIS Instrument Handbook", Baltimore: STScI), available at: http://www.stsci.edu/hst/stis/documents.
• Morton, D.C. 2003, Astrophys. J. Suppl. Ser., 149, 205.
• Murray, M.J., Dufton, P.L., Hibbert, A., and York, D.G. 1984, Astrophys. J., 282, 481.
• Prochaska, J.X., Tripp, T.M., and Howk, J.Ch. 2005, Astrophys. J. Letters, 620, 39.
• Redfield, S., and Linsky, J.L. 2002, Astrophys. J. Suppl. Ser., 139, 439.
• Redfield, S., and Linsky, J.L. 2004, Astrophys. J., 602, 776.
• Sofia, U.J., Fabian, D., and Howk, J.Ch. 2000, Astrophys. J., 531, 384.
• Spitzer, L.Jr., and Fitzpatrick, E.L. 1993, Astrophys. J., 409, 299.
• Theodosiou, C.E., and Federman, S.R. 1999, Astrophys. J., 527, 470.
• Wood, B.E., Linsky, J.L., Hébrard, G., Williger, G.M., Moos, H.W., and Blair, W.P. 2004, Astrophys. J., 609, 838.