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Mid- and far-infrared absorption spectroscopy of Titan’s aerosols analogues
Vinatier, Sandrine; Mahjoub, Ahmed; Anderson, Carrie M. +7 more
In this work we present mid- and far-infrared absorption spectra of Titan’s aerosol analogues produced in the PAMPRE experimental setup. The evolution of the linear absorption coefficient ɛ (cm-1) is given as a function of the wavenumber.
We provide a complete dataset regarding the influence that the concentration of methane vapor …Defining the "Blind Spot" of Hinode EIS and XRT Temperature Measurements
Golub, Leon; Winebarger, Amy R.; Warren, Harry P. +4 more
Observing high-temperature, low emission measure plasma is key to unlocking the coronal heating problem. With current instrumentation, a combination of EUV spectral data from Hinode Extreme-ultraviolet Imaging Spectrometer (EIS; sensitive to temperatures up to 4 MK) and broadband filter data from Hinode X-ray Telescope (XRT; sensitive to higher te…
Rapid Coeval Black Hole and Host Galaxy Growth in MRC 1138-262: The Hungry Spider
Altieri, B.; Valtchanov, I.; Stern, D. +30 more
We present a detailed study of the infrared spectral energy distribution of the high-redshift radio galaxy MRC 1138-26 at z = 2.156, also known as the Spiderweb Galaxy. By combining photometry from Spitzer, Herschel, and LABOCA we fit the rest-frame 5-300 µm emission using a two-component, starburst, and active galactic nucleus (AGN) model. …
A Global Two-temperature Corona and Inner Heliosphere Model: A Comprehensive Validation Study
Fedorov, A.; Llebaria, A.; Lamy, P. L. +9 more
The recent solar minimum with very low activity provides us a unique opportunity for validating solar wind models. During CR2077 (2008 November 20 through December 17), the number of sunspots was near the absolute minimum of solar cycle 23. For this solar rotation, we perform a multi-spacecraft validation study for the recently developed three-dim…
A computational and theoretical analysis of falling frequency VLF emissions
Omura, Yoshiharu; Nunn, David
Recently much progress has been made in the simulation and theoretical understanding of rising frequency triggered emissions and rising chorus. Both PIC and Vlasov VHS codes produce risers in the region downstream from the equator toward which the VLF waves are traveling. The VHS code only produces fallers or downward hooks with difficulty due to …
Wide Companions to Hipparcos Stars within 67 pc of the Sun
Lépine, Sébastien; Tokovinin, Andrei
A catalog of common-proper-motion (CPM) companions to stars within 67 pc of the Sun is constructed based on the SUPERBLINK proper-motion survey. It contains 1392 CPM pairs with angular separations 30'' < ρ < 1800'', relative proper motion between the two components less than 25 mas yr-1, and magnitudes and colors of the secondarie…
Small-scale temperature fluctuations seen by the VeRa Radio Science Experiment on Venus Express
Pätzold, M.; Hinson, D. P.; Bird, M. K. +6 more
The Venus Express Radio Science Experiment VeRa retrieves atmospheric profiles in the mesosphere and troposphere of Venus in the approximate altitude range of 40-90 km. A data set of more than 500 profiles was retrieved between the orbit insertion of Venus Express in 2006 and the end of occultation season No. 11 in July 2011. The atmospheric profi…
Broadband Spectral Analysis of the Galactic Ridge X-Ray Emission
Makishima, Kazuo; Nakazawa, Kazuhiro; Yuasa, Takayuki
Detailed spectral analysis of the Galactic X-ray background emission, or the Galactic Ridge X-ray Emission (GRXE), is presented. To study the origin of the emission, broadband and high-quality GRXE spectra were produced from 18 pointing observations with Suzaku in the Galactic bulge region, with a total exposure of 1 Ms. The spectra were successfu…
Spatial distribution of rolled up Kelvin-Helmholtz vortices at Earth's dayside and flank magnetopause
Berchem, J.; Escoubet, C. P.; Eastwood, J. P. +21 more
The Kelvin-Helmholtz Instability (KHI) can drive waves at the magnetopause. These waves can grow to form rolled-up vortices and facilitate transfer of plasma into the magnetosphere. To investigate the persistence and frequency of such waves at the magnetopause we have carried out a survey of all Double Star 1 magnetopause crossings, using a combin…
Search for Gamma-ray Emission from X-Ray-selected Seyfert Galaxies with Fermi-LAT
Ozaki, M.; Troja, E.; Caraveo, P. A. +133 more
We report on a systematic investigation of the γ-ray properties of 120 hard X-ray-selected Seyfert galaxies classified as "radio-quiet" objects, utilizing the three-year accumulation of Fermi Large Area Telescope (LAT) data. Our sample of Seyfert galaxies is selected using the Swift Burst Alert Telescope 58 month catalog, restricting the analysis …