Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Allamandola, Louis J."'
Autor:
Boersma, Christiaan, Bregman, Jesse D., Allamandola, Louis J., Temi, Pasquale, Maragkoudakis, Alexandros
Spitzer 'hidden' observations of the background are used to construct a catalog of 4,090 spectra and examine the signature of polycyclic aromatic hydrocarbon (PAH) molecules and their connection to extinction by dust. A strong positive correlation is
Externí odkaz:
http://arxiv.org/abs/2409.12324
Cyano-substituted polycyclic aromatic hydrocarbons (CN-PAHs) may contribute to the emission detected in the 7 - 9 $\mu$m (1430 - 1100 cm$^{-1}$) and 11 - 15 $\mu$m (900 - 670 cm$^{-1}$) regions of astronomical IR spectra. Anharmonic quantum chemical
Externí odkaz:
http://arxiv.org/abs/2406.00088
Publikováno v:
Journal of Chemical Physics; 6/7/2024, Vol. 160 Issue 21, p1-10, 10p
Akademický článek
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Autor:
Peeters, Els, Bauschlicher, Jr., Charles W., Allamandola, Louis J., Tielens, Alexander G. G. M., Ricca, Alessandra, Wolfire, Mark G.
We present 5-20 micron spectral maps of the reflection nebula NGC2023 obtained with the Infrared Spectrograph SL and SH modes on board the Spitzer Space Telescope which reveal emission from polycyclic aromatic hydrocarbons (PAHs), C60, and H2 superpo
Externí odkaz:
http://arxiv.org/abs/1701.06585
Autor:
Esposito, Vincent J, Fortenberry, Ryan C, Boersma, Christiaan, Maragkoudakis, Alexandros, Allamandola, Louis J
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters; Jun2024, Vol. 531 Issue 1, pL87-L93, 7p
We present 15-20 um spectral maps towards the reflection nebula NGC2023 obtained with the Infrared Spectrograph in short-wavelength, high-resolution mode on board the Spitzer Space Telescope. These spectra reveal emission from PAHs, C60, and H2 super
Externí odkaz:
http://arxiv.org/abs/1112.3386
Autor:
Erickson, Edwin F., Allamandola, Louis J., Baluteau, Jean-Paul, Becklin, Eric E., Bjoraker, Gordon, Burton, Michael, Caroff, Lawrence J., Ceccarelli, Cecilia, Churchwell, Edward B., Clemens, Dan P., Cohen, Martin, Cruikshank, Dale P., Dinerstein, Harriet L., Dunham, Edward W., Fazio, Giovanni G., Gatley, Ian, Gehrz, Robert D., Genzel, Reinhard, Graf, Paul, Greenhouse, Matthew A., Harper, Doyal A., Harvey, Paul M., Harwit, Martin, Hildebrand, Roger H., Hollenbach, David J., Lane, Adair P., Larson, Harold P., Lord, Steven D., Madden, Suzanne, Melnick, Gary J., Neufeld, David A., Olkin, Catherine B., Packham, Christopher C., Roellig, Thomas L., Roeser, Hans-Peter, Sandford, Scott A., Sellgren, Kristen, Simpson, Janet P., Storey, John W. V., Telesco, Charles M., Tielens, Alexander G. G. M., Tokunaga, Alan T., Townes, Charles H., Walker, Christopher K., Werner, Michael W., Whitcomb, Stanley E., Wolf, Juergen, Woodward, Charles E., Young, Erick T., Zmuidzinas, Jonas
This white paper is submitted to the Astronomy and Astrophysics 2010 Decadal Survey (Astro2010)1 Committee on the State of the Profession to emphasize the potential of the Stratospheric Observatory for Infrared Astronomy (SOFIA) to contribute to the
Externí odkaz:
http://arxiv.org/abs/0903.4240
Publikováno v:
Astrophys.J.697:311-327,2009
The mid-IR spectra of six large, irregular PAHs with formulae (C84H24 - C120H36) have been computed using Density Functional Theory (DFT). Trends in the dominant band positions and intensities are compared to those of large, compact PAHs as a functio
Externí odkaz:
http://arxiv.org/abs/0903.0412
Autor:
Esposito, Vincent J., Allamandola, Louis J., Boersma, Christiaan, Bregman, Jesse D., Fortenberry, Ryan C., Maragkoudakis, Alexandros, Temi, Pasquale
Publikováno v:
Molecular Physics; Apr2024, Vol. 122 Issue 7/8, p1-19, 19p