1 / 21

JPL Spectral Line Catalog

JPL Spectral Line Catalog. Brian J. Drouin, Herbert M. Pickett. New Catalog Additions. 2008/04/13 102002 ClClOO 15078 1* 2008/03/28 47010 cis-HC-13-OO 15887 1* 2008/03/28 47009 cis-HCOOD 17502 1* 2008/03/28 47008 cis-DCOOH 22490 1* 2008/03/28 47004 HCOOD 18903 2*

cterrazas
Télécharger la présentation

JPL Spectral Line Catalog

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. JPL Spectral Line Catalog Brian J. Drouin, Herbert M. Pickett JPL Spectral Line Catalog

  2. New Catalog Additions • 2008/04/13 102002 ClClOO 15078 1* • 2008/03/28 47010 cis-HC-13-OO 15887 1* • 2008/03/28 47009 cis-HCOOD 17502 1* • 2008/03/28 47008 cis-DCOOH 22490 1* • 2008/03/28 47004 HCOOD 18903 2* • 2008/03/28 47003 DCOOH 21405 2* • 2008/03/28 47002 HC-13-OOH 16515 2* • 2008/03/26 52009 CH3Cl-37 6403 2* • 2008/03/26 50007 CH3Cl-35 100532* • 2008/03/25 72001 CaS 382 1* • 2008/03/25 58003 CH3COCH3 61834 1* • 2008/03/25 32003 CH3OH 4665 2* • 2007/07/10 18003 H2O 3086 6* • 2007/06/01 74003 C3H6O2 60054 1* • 2007/03/06 31007 D13CO+ 40 1* • 2007/03/06 29002 HCO+ v=0,1,2 373 4* • 2007/02/15 39005 NaO 6440 1* • 2007/02/06 96002 S3 12039 1* • 2007/02/06 128001 S4 6640 1* • 2007/01/16 53001 C2H3CN 75697 3* • 2006/11/13 44013 C3H8 183835 2* • 2006/07/20 54005 HOCl-37 40627 4* • 2006/07/20 52006 HOCl 40352 4* HITRAN species in red Atmospheric species in blue JPL Spectral Line Catalog

  3. HOCl Update • Frequencies from combined analysis published in Journal of Quantitative Spectroscopy & Radiative Transfer 103 (2007) 558–564. • Includes Doppler resolved data to 1.8 THz • FIR data of Flaud J-M, Birk M, Wagner G, Orphal J, Klee S, Lafferty WJ. The far infrared spectrum of HOCl: line positions and intensities. J Mol Spectrosc 1998;191:362–7. JPL Spectral Line Catalog

  4. Water Update (same as last time) • Euler fit • best predictability at high J, K • Dipole Fix • Strong lines are ~1% stronger now • Herman Wallis fit to perturbed intensity model • effects strengths high J, K lines especially DK > 3 JPL Spectral Line Catalog

  5. Water Dipole Why are results changing? previously, JPL used a value of 1.84718 D The current value used in the JPL compilation is 1.8546 D, this, when combined with all HW corrections are consistent with measured Stark shifts Where: nStark = (0G + 2GM2)e2 units of G are Hz(V/cm)2 Levels component JPLcat Literaturea%Diff [prev] %Meas 111 (0-1) 2G 0.226678 0.226644(45) 0.02 [-0.80] 0.04 110 (1-0) 2G 0.407111 0.407086(81) 0.01 [-0.77] 0.05 211 (0-1) 2G 0.162935 0.162902(32) 0.02 [-0.86] 0.04 _________________________________________________________ 313-2200G 0.077389 0.077514(11) -0.16 [-0.63] 0.14 313-220 2G -0.042176 -0.042180(17) -0.01 [-0.64] 0.04 616-5230G 0.199024 0.198564(110) 0.23 [-0.81] 0.55 616-523 2G -0.009607 -0.009598(15) 0.10 [-0.97] 0.16 _______________________________________________________________________ a. S. A. Clough, Y. Beers, G. P. Klein, L.S. Rothman, (1973), J. Chem. Phys. 59, 2254-2259, T. R. Dyke and J. S. Muenter, (1973), J. Chem. Phys, 59, 3125-3127. JPL Spectral Line Catalog

  6. Methanol Update • Previous listing limited to J < 12 • New fits approaching J = 30 • MLS interested in Q-branch pile up near 635 GHz (the ClO image sideband) JPL Spectral Line Catalog

  7. Methanol Update • Based on Li-Hong Xu, J. T. Hougen, J. Mol. Spectrosc. 173 (1995) 540-551 which has prediction up to 1 THz • Improved J, K coverage & includes vT = 1 • S values were converted to Iab(300) using Qrv = 6413.573 where Qv(300 K) = 2.187 • No attempts to correct ma, mb for torsion JPL Spectral Line Catalog

  8. Methyl Chloride Update • Partition Function Tweak for both CH335Cl and CH337Cl • Qv (300 K) = 1.041 • CH335Cl Qrv (300 K) = 28103.92 • CH337Cl Qrv (300 K) = 28559.87 JPL Spectral Line Catalog

  9. Other Atmospheric Species • Propane • Acetone • ErHAM analysis to 600 GHz • P. Groner, et al. Ap. J. Supp.142 (2002) 145-151 • S converted to Iab using Qrtv = 15502961 • Chloryl Chloride • Propane • Acetone • Chloryl Chloride • Measurements to 400 GHz • HSP Muller, EA Cohen, 1999 J.Chem.Phys. 110, 11865. • Quadrupole splitting is not included in the catalog • experimental lines have not been merged. • The partition function is without quadrupole splitting. • Propane • SPFIT analysis of data to 1.6 THz • SPCAT calculation of ground and two lowest vibrational • B. J. Drouin, et al. J. Mol. Spectros. 240 (2)  227-237 (2006). • Acetone • Chloryl Chloride JPL Spectral Line Catalog

  10. Oxygen A-band & 1DIntensities • (b) 1S+g • (a) 1Dg • (X) 3S-g JPL Spectral Line Catalog

  11. New Apparatus for Linewidth Measurements 20-200 K JPL Spectral Line Catalog

  12. CO spectra at 20 K Typical Residual (X5) Voigt with FM JPL Spectral Line Catalog

  13. CO Broadening J = 5 - 4 JPL Spectral Line Catalog

  14. CO Broadening J = 5 - 4 JPL Spectral Line Catalog

  15. CO broadening –Non-Power Law below 40 K JPL Spectral Line Catalog

  16. Water Spectra at 22 K JPL Spectral Line Catalog

  17. Water broadening J = 1 JPL Spectral Line Catalog

  18. Water broadening J = 1 JPL Spectral Line Catalog

  19. IR cross-sections • Bruker FTS • Ultimate resolution of 0.002 cm-1 • Cross-cell path 35 cm • MM-wave beam • 5 mW power • DI/I = 10-4 s-1 • Monitor concentration and impurities JPL Spectral Line Catalog

  20. Example: isotope ratios JPL Spectral Line Catalog

  21. Acknowledgements • MLS • Nathaniel Livesey, William Read • Peter Groner • Ed Cohen • John Pearson • Michael Dick • Tim Crawford JPL Spectral Line Catalog

More Related