Search Publications
The secondary eclipse of the transiting exoplanet CoRoT-2b
Mazeh, T.; Aigrain, S.; Alapini, A. +5 more
We present a study of the light curve of the transiting exoplanet CoRoT-2b, aimed at detecting the secondary eclipse and measuring its depth. The data were obtained with the CoRoT satellite during its first run of more than 140 days. After filtering the low frequencies with a pre-whitening technique, we detect a 0.0060±0.0020% secondary eclipse ce…
Goniopolarimetric study of the revolution 29 perikrone using the Cassini Radio and Plasma Wave Science instrument high-frequency radio receiver
Kurth, W. S.; Cecconi, B.; Lamy, L. +3 more
We present goniopolarimetric (also known as direction finding) results of the Saturn kilometric radiation (SKR), using the Cassini Radio and Plasma Wave Science instrument high-frequency radio receiver data. Tools to retrieve the characteristics of the SKR sources have been developed that allow us to measure their 3-D location and beaming angle re…
The Structure of Saturn's Rings
Nicholson, P. D.; French, R. G.; Murray, C. D. +3 more
Our understanding of the structure of Saturn's rings has evolved steadily since their discovery by Galileo Galilei in 1610. With each advance in observations of the rings over the last four centuries, new structure has been revealed, starting with the recognition that the rings are a disk by Huygens in 1656 through discoveries of the broad organiz…
Solar Wind Sources in the Late Declining Phase of Cycle 23: Effects of the Weak Solar Polar Field on High Speed Streams
Luhmann, J. G.; Russell, C. T.; Arge, C. N. +6 more
The declining phases of solar cycles are known for their high speed solar wind streams that dominate the geomagnetic responses during this period. Outstanding questions about these streams, which can provide the fastest winds of the solar cycle, concern their solar origins, persistence, and predictability. The declining phase of cycle 23 has laste…
Neutral H Density at the Termination Shock: A Consolidation of Recent Results
Möbius, E.; Bzowski, M.; Gloeckler, G. +2 more
We discuss a consolidation of determinations of the density of neutral interstellar H at the nose of the termination shock carried out with the use of various data sets, techniques, and modeling approaches. In particular, we focus on the determination of this density based on observations of H pickup ions on Ulysses during its aphelion passage thr…
High-Ionization Fe K Emission From Luminous Infrared Galaxies
Sanders, D. B.; Surace, J. A.; Armus, L. +3 more
The Chandra component of the Great Observatories All-Sky Luminous Infrared Galaxy Survey (GOALS) presently contains 44 luminous and ultraluminous infrared galaxies (ULIRGs) with log (L IR/L sun) = 11.73-12.57. Omitting 15 obvious active galactic nuclei (AGNs), the other galaxies are, on average, underluminous in the 2-10 keV …
Thermal emission, shock modification, and X-ray emitting ejecta in SN 1006
Miceli, M.; Bocchino, F.; Orlando, S. +6 more
Context: Efficient particle acceleration can modify the structure of supernova remnants. We present the results of a combined analysis of the XMM-Newton EPIC archive observations of SN 1006.
Aims: We attempt to describe the spatial distribution of the physical and chemical properties of the X-ray emitting plasma at the shock front. We investig…
Silicon Carbide Absorption Features: Dust Formation in the Outflows of Extreme Carbon Stars
Wheeler, Caleb H.; Speck, Angela K.; Corman, Adrian B. +2 more
Infrared carbon stars without visible counterparts are generally known as extreme carbon stars. We have selected a subset of these stars with absorption features in the 10-13 µm range, which has been tentatively attributed to silicon carbide (SiC). We add three new objects meeting these criterion to the seven previously known, bringing our t…
A Spectroscopic Census of the M82 Stellar Cluster Population
Bastian, N.; Smith, L. J.; Gallagher, J. S., III +3 more
We present a spectroscopic study of the stellar cluster population of M82, the archetype starburst galaxy, based primarily on new Gemini-North multi-object spectroscopy of 49 star clusters. These observations constitute the largest to date spectroscopic data set of extragalactic young clusters, giving virtually continuous coverage across the galax…
The Infrared Luminosity Functions of Rich Clusters
Rieke, George H.; Zabludoff, Ann I.; Rieke, Marcia J. +2 more
We present Multiband Imaging Photometer observations of the cluster A3266. About 100 spectroscopic cluster members have been detected at 24 µm. The infrared (IR) luminosity function (LF) in A3266 is very similar to that in the Coma cluster down to the detection limit L IR ~ 1043 erg s-1, suggesting a universa…