Search Publications
The distribution of carbon monoxide in the lower atmosphere of Venus
Bailey, Jeremy; Cotton, Daniel V.; Crisp, D. +1 more
We have obtained spatially resolved near-infrared spectroscopy of the Venus nightside on 15 nights over three observing seasons. We use the depth of the CO absorption band at 2.3 µm to map the two-dimensional distribution of CO across both hemispheres. Radiative transfer models are used to relate the measured CO band depth to the volume mixi…
Passive and Star-forming Galaxies at 1.4 <= z <= 2.5 in the AEGIS Field
Fang, Guanwen; Kong, Xu; Chen, Yang +1 more
Using a simple two-color selection based on g-, z-, and K-band photometry, we choose from 1609 star-forming galaxies (sgzKs) and 422 passively evolving galaxies (pgzKs) at z ~ 2 from a K-band-selected sample (K AB < 22.0) in an area of ~0.44 deg2 of the All-wavelength Extended Groth Strip International Survey. The number o…
Determining the axial direction of high-shear flux transfer events: Implications for models of FTE structure
Milan, S. E.; Fear, R. C.; Oksavik, K.
Flux transfer events are bursts of dayside reconnection, which give rise to local perturbations of the magnetic field that can be observed by spacecraft near the magnetopause. Although it is commonly accepted that flux transfer events are caused by reconnection, various models exist to explain their structure. A key difference between mechanisms i…
Intrinsic Shape of Star-forming BzK Galaxies. II. Rest-frame Ultraviolet and Optical Structures in GOODS-South and SXDS
Ohta, Kouji; Yabe, Kiyoto; Yuma, Suraphong
We study the statistical intrinsic shape of star-forming BzK galaxies (sBzK galaxies) at z ~ 2 in both rest-frame UV and rest-frame optical wavelengths. The sBzK galaxies are selected down to KAB = 24.0 mag in the GOODS-S and Subaru-XMM Deep Survey (SXDS) fields, where high-resolution images from the Hubble Space Telescope are publicly …
Lunar iron abundance determination using the 2-µm absorption band parameters
Bhatt, Megha; Mall, Urs; Bugiolacchi, Roberto +4 more
In this work we report the first employment of the 2-µm absorption band parameters to estimate FeO weight percentage (wt.%) abundances from high-resolution Near-Infrared (NIR) lunar data, as measured by the SIR-2 instrument on board Chandrayaan-1. Our method is based on the algorithm originally developed by Le Mouélic et al. (Le Mouélic, S.,…
Gravity waves mapped by the OMEGA/MEX instrument through O2 dayglow at 1.27 µm: Data analysis and atmospheric modeling
Bibring, Jean-Pierre; Bellucci, Giancarlo; Altieri, Francesca +2 more
We present the occurrence of waves patterns on the southern polar region of Mars as traced by the O2 dayglow emission at λ = 1.27 µm during late winter/early spring of MY 28. The observations were carried out by the OMEGA (Observatoire pour la Minéralogie, l'Eau, les Glaces et l'Activité) imaging spectrometer on board Mars Express…
First Study of Dark Matter Properties with Detected Solar Gravity Modes and Neutrinos
García, R. A.; Mathur, S.; Lopes, I. +5 more
We derive new limits on the cold dark matter properties for weakly interacting massive particles (WIMPs), potentially trapped in the solar core by using for the first time the central temperature constrained by boron neutrinos and the central density constrained by the dipolar gravity modes detected with the Global Oscillations at Low Frequency/So…
WISE/NEOWISE Preliminary Analysis and Highlights of the 67p/Churyumov-Gerasimenko near Nucleus Environs
Masiero, Joseph R.; Wright, Edward L.; Tholen, David J. +15 more
On 2010 January 18-19 and June 28-29, the Wide-field Infrared Survey Explorer (WISE) spacecraft imaged the Rosetta mission target, comet 67P/Churyumov-Gerasimenko. We present a preliminary analysis of the images, which provide a characterization of the dust environment at heliocentric distances similar to those planned for the initial spacecraft e…
The Chandrayaan-1 X-ray Spectrometer: First results
Grande, M.; Koschny, D.; Rothery, D. A. +30 more
We present X-ray fluorescence observations of the lunar surface, made by the Chandrayaan-1 X-ray Spectrometer during two solar flare events early in the mission (12th December 2008 and 10th January 2009). Modelling of the X-ray spectra with an abundance algorithm allows quantitative estimates of the MgO/SiO2 and Al2O3
Identification and physical properties of craters on Asteroid (2867) Steins
Jorda, L.; Lamy, P.; Barbieri, C. +2 more
We report on the physical properties of the craters of Asteroid (2867) Steins based on an analysis of images obtained with the OSIRIS instrument during the Rosetta flyby that took place on 5 September 2008. To compensate for the limited spatial resolution of the images and unfavorable illumination conditions, we applied three different filtering t…