Results 1 to 10 of about 344,159 (157)

The silicate absorption profile in the ISM towards the heavily obscured nucleus of NGC 4418 [PDF]

, 2015
The 9.7-micron silicate absorption profile in the interstellar medium provides important information on the physical and chemical composition of interstellar dust grains.
Alonso-Herrero, A., Gonzalez-Martin, O., Roche, P. F.   +2 more
core   +2 more sources

The distribution of silicate strength in Spitzer spectra of AGNs and ULIRGs [PDF]

, 2006
A sample of 196 AGNs and ULIRGs observed by the Infrared Spectrograph (IRS) on Spitzer is analyzed to study the distribution of the strength of the 9.7 micron silicate feature.
Antonucci R., Clavel J., D. W. Weedman, Efstathiou A., Fritz J., H. W. W. Spoon, J. A. Marshall, J. R. Houck, Lei Hao, M. Elitzur, N. A. Levenson, Siebenmorgen R.   +11 more
core   +3 more sources

Neutron diffraction and Raman studies of the incorporation of sulfate in silicate glasses [PDF]

, 2020
The oxidation state, coordination and local environment of sulphur in alkali silicate (R2O-SiO2; R= Na, Li) and alkali-alkaline earth silicate (Na2O-MO-SiO2; M= Ca, Ba) glasses have been investigated using neutron diffraction and Raman spectroscopy ...
Barney, Emma, Bingham, Paul, Hannon, Alex, Vaishnav, Shuchi   +3 more
core   +2 more sources

Structure, bonding and morphology of hydrothermally synthesised xonotlite [PDF]

, 2009
The authors have systematically investigated the role of synthesis conditions upon the structure and morphology of xonotlite. Starting with a mechanochemically prepared, semicrystalline phase with Ca/Si=1, the authors have prepared a series of xonotlite ...
A. Stumm, Black L., Black L., Black L., Black L., Chan C. F., Churakov S. V., Hejny C., K. Garbev, L. Black, Liebau F., Low N. M. P., Mamedov K. S., McWhinney H. G., Mekki A., Mollah M. Y. A., Qian G. R., Regourd M., Saito F., Thomassin J. H.   +19 more
core   +1 more source

9.7 um Silicate Features in AGNs: New Insights into Unification Models [PDF]

, 2006
We describe observations of 9.7 um silicate features in 97 AGNs, exhibiting a wide range of AGN types and of X-ray extinction toward the central nuclei.
Antonucci R., Belsole E., Brunner H., D. C. Hines, F. J. Low, G. H. Rieke, Granato G. L., J. Bouwman, K. Cleary, M. W. Werner, P. S. Smith, Roche P. F., Roche P. F., Rowan-Robinson M., Turner T. J., V. Gorjian, Wang T., Y. Shi   +17 more
core   +1 more source

Iron, silicate, and light co-limitation of three Southern Ocean diatom species [PDF]

, 2008
The effect of combined iron, silicate, and light co-limitation was investigated in the three diatom species Actinocyclus sp. Ehrenberg, Chaetoceros dichaeta Ehrenberg, and Chaetoceros debilis Cleve, isolated from the Southern Ocean (SO).
A Abelmann, A Leynaert, A Tsuda, BG Mitchell, CL La Rocha de, DA Hutchins, DE Sigmon, DJS Montagnes, DM Nelson, DM Nelson, DN Thomas, E Paasche, EV Dafner, FMM Morel, G Sarthou, H Hillebrand, HJW Baar de, I. Peeken, JA Raven, JH Martin, K Banse, K Grasshoff, K Leblanc, K. Lochte, KH Coale, KH Coale, KR Timmermans, L. J. Hoffmann, LJ Hoffmann, LJ Hoffmann, MA Brzezinski, MA Brzezinski, MA Brzezinski, P Claquin, P Tréguer, P Tréguer, PJ Harrison, PN Sedwick, RF Strzepek, RF Strzepek, RM Greene, RM Greene, S Blain, SW Chisholm, SW Jeffrey, T Oijen van, V Martin-Jézéquel, VM Franck, VM Franck, W Admiraal, WG Sunda   +50 more
core   +1 more source

High-Q bismuth silicate nonlinear glass microsphere resonators [PDF]

, 2012
The fabrication and characterization of a bismuth-silicate glass microsphere resonator has been demonstrated. At wavelengths near 1550 nm, high-modes can be efficiently excited in a 179 µm diameter bismuth-silicate glass microsphere via evanescent ...
Brambilla, G., Ding, M., Farrell, G., Koizumi, F., Lee, T., Murugan, G.S., Semenova, Y., Wang, P., Wu, Q.   +8 more
core   +2 more sources

Photoemission study of the SiO₂conversion mechanism to magnesium silicate [PDF]

, 2010
The objective of this work is to investigate interface chemistries which minimize the interfacial silicon oxide transition region at Si/high-k dielectric interfaces.
Casey, Patrick, Hughes, Greg
core   +1 more source

3 - 14 Micron Spectroscopy of Comets C/2002 O4 (Honig), C/2002 V1 (NEAT), C/2002 X5 (Kudo-Fujikawa), C/2002 Y1 (Juels-Holvorcem), 69P/Taylor, and the Relationships among Grain Temperature, Silicate Band Strength and Structure among Comet Families [PDF]

, 2004
We report 3 - 13 micron spectroscopy of 4 comets observed between August 2002 and February 2003: C/2002 O4 (Honig) on August 1, 2002, C/2002 V1 (NEAT) on Jan. 9 and 10, 2003, C/2002 X5 (Kudo-Fujikawa) on Jan.
Beust H., Colangeli L., David K. Lynch, Dorschner J., Hanner M. S., Lagrange-Henri A. M., Lagrange-Henri A. M., Martha S. Hanner, McDonnell J. A. M., Michael L. Sitko, Ray W. Russell, van den Ancker M. E., Xing Z.   +12 more
core   +1 more source

The Origin of the Silicate Emission Features in the Seyfert 2 Galaxy, NGC 2110

, 2009
The unified model of active galactic nuclei (AGN) predicts silicate emission features at 10 and 18 microns in type 1 AGN, and such features have now been observed in objects ranging from distant QSOs to nearby LINERs.
Alonso-Herrero, Bock, Bressan, C. Packham, Efstathiou, Evans, Glasse, Gorjian, Granato, Hao, Hao, J. Rhee, K. Cleary, M. Werner, Malaguti, Mason, Moran, N. A. Levenson, Nenkova, Nenkova, Nenkova, Ossenkopf, Packham, R. E. Mason, Radomski, Rhee, Roche, Schweitzer, Shi, Sirocky, Sturm, Sturm, V. Gorjian, Y. Shi   +33 more
core   +1 more source