surface science investigations of the role of co 2 in astrophysical ices by john l. edridge, kati...
TRANSCRIPT
![Page 1: Surface science investigations of the role of CO 2 in astrophysical ices by John L. Edridge, Kati Freimann, Daren J. Burke, and Wendy A. Brown Philosophical](https://reader036.vdocument.in/reader036/viewer/2022083005/56649f1f5503460f94c369e1/html5/thumbnails/1.jpg)
Surface science investigations of the role of CO2 in
astrophysical ices
by John L. Edridge, Kati Freimann, Daren J. Burke, and Wendy A. Brown
Philosophical Transactions AVolume 371(1994):20110578
July 13, 2013
©2013 by The Royal Society
![Page 2: Surface science investigations of the role of CO 2 in astrophysical ices by John L. Edridge, Kati Freimann, Daren J. Burke, and Wendy A. Brown Philosophical](https://reader036.vdocument.in/reader036/viewer/2022083005/56649f1f5503460f94c369e1/html5/thumbnails/2.jpg)
TPD spectra for CO2 adsorbed on HOPG at 33 K.
John L. Edridge et al. Phil. Trans. R. Soc. A 2013;371:20110578
©2013 by The Royal Society
![Page 3: Surface science investigations of the role of CO 2 in astrophysical ices by John L. Edridge, Kati Freimann, Daren J. Burke, and Wendy A. Brown Philosophical](https://reader036.vdocument.in/reader036/viewer/2022083005/56649f1f5503460f94c369e1/html5/thumbnails/3.jpg)
Simulated TPD spectra of a 0.3 μm thick 13% CO2:H2O ice using a heating rate of T=1.706×10−4×time1.289 [53], characteristic of the warming of a hot core near to a medium mass
star.
John L. Edridge et al. Phil. Trans. R. Soc. A 2013;371:20110578
©2013 by The Royal Society
![Page 4: Surface science investigations of the role of CO 2 in astrophysical ices by John L. Edridge, Kati Freimann, Daren J. Burke, and Wendy A. Brown Philosophical](https://reader036.vdocument.in/reader036/viewer/2022083005/56649f1f5503460f94c369e1/html5/thumbnails/4.jpg)
TPD spectra for CO2 adsorbed on ASW on HOPG at 33 K.
John L. Edridge et al. Phil. Trans. R. Soc. A 2013;371:20110578
©2013 by The Royal Society
![Page 5: Surface science investigations of the role of CO 2 in astrophysical ices by John L. Edridge, Kati Freimann, Daren J. Burke, and Wendy A. Brown Philosophical](https://reader036.vdocument.in/reader036/viewer/2022083005/56649f1f5503460f94c369e1/html5/thumbnails/5.jpg)
A comparison of TPD spectra recorded for equivalent doses of pure CO2 ice on HOPG (d), CO2 adsorbed on top of 100 L of ASW ice (c) and 100 L of a 15% CO2:H2O ice co-deposited mixture
(b).
John L. Edridge et al. Phil. Trans. R. Soc. A 2013;371:20110578
©2013 by The Royal Society
![Page 6: Surface science investigations of the role of CO 2 in astrophysical ices by John L. Edridge, Kati Freimann, Daren J. Burke, and Wendy A. Brown Philosophical](https://reader036.vdocument.in/reader036/viewer/2022083005/56649f1f5503460f94c369e1/html5/thumbnails/6.jpg)
(a) RAIR spectra of a range of exposures of CO2 adsorbed on HOPG at 28 K.
John L. Edridge et al. Phil. Trans. R. Soc. A 2013;371:20110578
©2013 by The Royal Society
![Page 7: Surface science investigations of the role of CO 2 in astrophysical ices by John L. Edridge, Kati Freimann, Daren J. Burke, and Wendy A. Brown Philosophical](https://reader036.vdocument.in/reader036/viewer/2022083005/56649f1f5503460f94c369e1/html5/thumbnails/7.jpg)
A comparison of RAIR spectra recorded for a range of CO2 ices adsorbed on HOPG at 30 K.
John L. Edridge et al. Phil. Trans. R. Soc. A 2013;371:20110578
©2013 by The Royal Society
![Page 8: Surface science investigations of the role of CO 2 in astrophysical ices by John L. Edridge, Kati Freimann, Daren J. Burke, and Wendy A. Brown Philosophical](https://reader036.vdocument.in/reader036/viewer/2022083005/56649f1f5503460f94c369e1/html5/thumbnails/8.jpg)
TPD spectra recorded for desorption of an ice consisting of 20 L of CO2 adsorbed on top of 100 L of a 15% CH3OH:H2O mixed ice, adsorbed on HOPG at 33 K.
John L. Edridge et al. Phil. Trans. R. Soc. A 2013;371:20110578
©2013 by The Royal Society