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Editorial
No full textThe Meteoritics & Planetary Science archives are made available by the Meteoritical Society and the University of Arizona Libraries. Contact [email protected] for further information.Migrated from OJS platform February 202
Russophobia in official Russian political discourse
No full textThe charge of Russophobia has been made increasingly frequently against Western critics of Russia in the last few years. Much of this criticism has been made by Russian media and commentators rather than by high officials of the Russian state. There have been several studies of this media use of accusations of Russophobia and it has generally been asserted that the charge of Russophobia is part of a concerted propaganda effort by the Russian state. There has, however, been little examination of the use of Russophobia by top Russian politicians. This article examines the use of Russophobia by President Vladimir Putin as well as by top officials of the Ministry of Foreign Affairs, and in communiques of the Ministry of Foreign Affairs. It finds that there has been only minor changes in the allegations of Russophobia by senior Russian politicians. The article looks at why Russophobia became a more prevalent accusation in Russian politics generally and at why there has been a difference in the accusations of Russophobia made by the media and in official political discourse.
Negli ultimi anni l’accusa di russofobia è stata assunta sempre più frequentemente contro i critici occidentali della Russia. Gran parte di questa critica è stata formulata dai media e dai commentatori russi piuttosto che dagli alti funzionari dello Stato russo. Ci sono stati diversi studi sull’uso da parte dei media delle accuse di russofobia ed è stato generalmente affermato che l’accusa di russofobia fa parte di uno sforzo di propaganda concertato da parte dello Stato russo. C’è stato, tuttavia, un piccolo esame dell’uso della russofobia da parte dei migliori politici russi. Questo articolo esamina l’uso della russofobia da parte del presidente Vladimir Putin, nonché da alti funzionari del Ministero degli Affari esteri e nei comunicati di questo dicastero. Si ritiene che ci siano stati solo piccoli cambiamenti nelle accuse di russofobia da parte di alti politici russi. L’articolo esamina il motivo per cui la russofobia è diventata un’accusa più diffusa nella politica russa in generale e perché c’è stata una differenza nelle accuse della russofobia avanzate dai media e nel discorso politico ufficiale
Recent Books. Italy
No full textBrevi segnalazioni di 13 titoli: La cassa dei libri. La famiglia Michelstaedter e la Shoah, a cura di Marco Menato e Simone Volpato, Crocetta del Montello, Antiga edizioni, 2019 (p. 546); Maurizio Festanti, Catalogo degli incunaboli della Biblioteca Panizzi di Reggio Emilia, Roma, Istituto Poligrafico e Zecca dello Stato, 2019 (pp. 546-547); Le cinquecentine della Biblioteca del Convento della Verna, a cura di Chiara Razzolini e Chiara Cauzzi, Firenze, Olschki, 2019 (p. 547); Francesco Filelfo, Commento a Rerum vulgarium fragmenta 1-136, a cura di Michele Rossi, Treviso, Antilia, 2018 (pp. 547-548); La filologia in Italia nel Rinascimento, a cura di Carlo Caruso and Emilio Russo, Rome, Edizioni di storia e letteratura, 2018 (p. 548); Emanuela Di Stefano, Fra le Marche, il Mediterraneo, l’Europa. Pioraco: radici ed espansione di un centro cartario. La fase camerte-piorachese, Napoli, Edizioni scientifiche italiane, 2019 (p. 548); Adriana Alessandrini, Il libro a stampa e la cultura del Rinascimento. Un’indagine sulle biblioteche fiorentine negli anni 1470-1520, Firenze, SISMEL-Edizioni del Galluzzo, 2018 (p. 549); Lina Bolzoni, Una meravigliosa solitudine. L’arte di leggere nell’Europa moderna, Torino, Einaudi, 2019 (p. 549); Gigliola Fragnito, Rinascimento perduto. La letteratura italiana sotto gli occhi dei censori (secoli XV-XVII), Bologna, Il Mulino, 2019 (p. 549-550); Roberto Ridolfi. Un umanista del XX secolo. Atti del convegno di studi, a cura di Giustina Manica, Florence, Olschki, 2019 (p. 550); Stranieri all’ombra del duce. Le traduzioni durante il fascismo, a cura di Anna Ferrando, Milan, Franco Angeli, 2019 (pp. 550-551); Scrittura di testi e produzione di libri. Libri e lettori a Brescia tra Medioevo ed Età moderna, a cura di Luca Rivali, Udine, Forum, 2019 (p. 551); Selling & Collecting. Printed Book Sale Catalogues and Private Libraries in Early Modern Europe, a cura di Giovanna Granata e Angela Nuovo, Macerata, EUM, 2018 (p. 551)
Far-ultraviolet Spectroscopy of Recent Comets with the Cosmic Origins Spectrograph on the<i>Hubble Space Telescope</i>
No full textCO Emission from Disks around AB Aurigae and HD 141569: Implications for Disk Structure and Planet Formation Timescales
No full textWe present a comparison of CO fundamental rovibrational lines (observed in the M band near 4.7 μm) from the inner circumstellar disks around the Herbig AeBe stars AB Aur and HD 141569. The CO spatial profiles and temperatures constrain the location of the gas for both stars to a distance of less than 50 AU. The CO emission from the disk of the ~4 Myr star AB Aur shows at least two temperature components, the inner disk at a rotational temperature of 1540 ± 80 K and the outer disk at 70 ± 10 K. The hot gas is located near the hot bright inner rim of the disk and the cold gas is located in the outer disk from 8-50 AU. The relative intensities of low-J lines suggest that the cold gas is optically thick. The excitation of CO in both temperature regimes is dominated by infrared fluorescence (resonant scattering). In the more evolved disk around HD 141569, the CO is excited by UV fluorescence. The relative intensity of the CO emission lines implies a rotational temperature of 190 ± 30 K. The resulting column density is ~ 1011 cm-2, indicating approximately 1019 g of CO. The observed line profiles indicate that the inner disk has been cleared of CO gas by stellar radiation out to a minimum of 17 AU. The residual mass of CO suggests that the inner disk of HD 141569 is not in an active phase of planet building but it does not rule out the possibility that giant planet building has previously occurred
rSpeX observations of comets: Using moderate-Resolution infrared spectroscopy to infer and monitor chemical composition
No full textInternational audienc
Workshop on Planetary Atmospheres : November 6-7, 2007, Greenbelt, Maryland
No full textThe talks are organized along three themes: Atmospheres around bodies with solid surfaces (e.g., terrestrial planets, Titan, Io, Pluto, satellites, small bodies); Giant-planet atmospheres (Jupiter, Saturn, Uranus, and Neptune); Other topics (e.g., comets, extrasolar planets, solar wind/magnetosphere/atmosphere interactions)Sponsored by: Lunar and Planetary Institute, National Aeronautics and Space AdministrationScientific Organizing Committee: Don Banfield, Cornell University, Jay T. Bergstralh, NASA Langley Research Center, Mark Bullock, Southwest Research Institute, Philippe Crane, NASA Headquarters, Neil Dello Russo, Johns Hopkins University, Applied Physics Laboratory, Heidi B. Hammel, Space Science Institute, David L. Huestis, SRI International, Molecular Physics Laboratory, Carey M. Lisse, Johns Hopkins University, Applied Physics Laboratory, Julianne I. Moses, Lunar and Planetary Institute, Adam P. Showman, University of Arizona, Amy A. Simon-Miller, NASA Goddard Space Flight Center, Local Organizing Committee: Philippe Crane, NASA Headquarters, Monica Washington, NASA Research and Education Support Services.PARTIAL CONTENTS: Mars Water Cycle Simulations with the NASA/Ames GCM / R. M. Haberle, F. Montmessin, M. A. Kahre, J. L. Hollingsworth, and J. Schaeffer--Low Temperature Absorption of Sulfur Dioxide Between 280 and 330 nm / J. B. Halpern, D. Carliss, C. Knight, and J. F. Burris--Optical Properties of Titan Haze Laboratory Analogs Using Cavity Ring Down Spectroscopy / C. A. Hasenkopf, M. R. Beaver, M. A. Tolbert, O. B. Toon, and C. P. McKay--High Resolution IR Spectroscopy: A Laboratory Program in Support of Planetary Atmospheric Research / T. Hewagama, W. E. Blass, T. Kostiuk, and J. Delgado--Large-Scale Extratropical Cyclogenesis and Frontal Waves: Effects on Mars Dust / J. L. Hollingsworth, M. A. Kahre, and R. M. Haberle--Mathematics of Radiation Propagation in Planetary Atmospheres: Absorption, Refraction, Time Delay, Occultation, and Abel Inversion / D. L. Huestis--Planetary Atmospheres Discoveries by the Cassini Spacecraft / A. P. Ingersoll
Diversity in open-air site structure across the Pleistocene/Holocene boundary
No full textIncludes bibliographical references and index.Open-air sites are difficult for researchers to locate and difficult to interpret; containing superimposed events often showing only the most recent. Overcoming limitations of data and poor preservation, using prior research and new analytical tools, and diverging from a one-size-fits-all interpretation, offers fresh insight into formation and taphonomy of open-air sites.--Provided by publisher.Functional and organizational variation among Palaeolithic and Mesolithic sites in Southwestern Germany / Michael A. Jochim -- Organization of living space at Late Pleistocene campsites of the Studenoe Site, Transbaikal Region, Siberia / Karisa Terry, Aleksander V. Konstantinov and Ian Buvit -- Understanding space at Owl Ridge, Central Alaska: identifying activities and camp use / Neil N. Puckett and Kelly E. Graf -- Spatial analysis of a Clovis hearth-centered activity area at the La Prele Mammoth Site, Converse County, Wyoming / Madeline E. Mackie, Todd A. Surovell, Spencer Pelton, Matthew J. O'Brien, Robert L. Kelly, George C. Frison, Robert Yohe, Steve Teteak, Beth Shapiro, and Joshua D. Kapp -- Analytical and interpretive challenges posed by Late Paleoindian activity areas at the Water Canyon Site, West-Central New Mexico / Robert Dello-Russo, Robin Cordero, and Banks Leonard -- Boca Negra Wash: investigating activity organization at a shallowly buried Folsom Camp in the Middle Rio Grande Valley of New Mexico / Bruce B. Huckell, Christopher W. Merriman, and Matthew J. O'Brien -- The late Paleoindian occupation at the Bull Creek Site: comparing and contrasting seasonal site structure and resource procurement strategies / Leland C. Bement, Kristen A. Carlson, and Brian J. Carter -- Where are the activity areas?: an example at the Allen Site / Douglas B. Bamforth
Infrared OH Prompt Emission as a Proxy of Water Production in Comets: Quantitative Analysis of the Multiplet Near 3046 cm−1in Comets C/1999 H1 (Lee) and C/2001 A2 (LINEAR)
No full textThe CO2 Abundance in Comets C2012 K1 (PanSTARRS), C2012 K5 (LINEAR), and 290P Jager as Measured with Spitzer
No full textCarbon dioxide is one of the most abundant ices present in comets and is therefore important for understanding cometary composition and activity. We present analysis of observations of CO2 and [O I] emission in three comets to measure the CO2 abundance and evaluate the possibility of employing observations of [O I] emission in comets as a proxy for CO2. We obtained NIR imaging sensitive to CO2 of comets C/2012 K1 (PanSTARRS), C/2012 K5 (LINEAR), and 290P/Jager with the IRAC instrument on Spitzer. We acquired observations of [O I] emission in these comets with the ARCES echelle spectrometer mounted on the 3.5-m telescope at Apache Point Observatory and observations of OH with the Swift observatory (PanSTARRS) and with Keck HIRES (Jager). The CO2/H2O ratios derived from the Spitzer images are 12.6 +/- 1.3% (PanSTARRS), 28.9 +/- 3.6% (LINEAR), and 31.3 +/- 4.2% (Jager). These abundances are derived under the assumption that contamination from CO emission is negligible. The CO2 abundance for PanSTARRS is close to the average abundance measured in comets at similar heliocentric distance to date, while the abundances measured for LINEAR and Jager are significantly larger than the average abundance. From the coma morphology observed in PanSTARRS and the assumed gas expansion velocity, we derive a rotation period for the nucleus of about 9.2 h. Comparison of H2O production rates derived from ARCES and Swift data, as well as other observations, suggest the possibility of sublimation from icy grains in the inner coma. We evaluate the possibility that the [O I] emission can be employed as a proxy for CO2 by comparing CO2/H2O ratios inferred from the [O I] lines to those measured directly by Spitzer. We find that for PanSTARRS we can reproduce the observed CO2 abundance to an accuracy of approximately 20%. For LINEAR and Jager, we were only able to obtain upper limits on the CO2 abundance inferred from the [O I] lines. These upper limits are consistent with the CO2 abundances measured by Spitzer
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