Search Publications
INTEGRAL/IBIS nine-year Galactic hard X-ray survey
Sunyaev, R.; Krivonos, R.; Tsygankov, S. +3 more
Context. The INTEGRAL observatory operating in a hard X-ray/gamma domain has gathered a large observational data set over nine years starting in 2003. Most of the observing time was dedicated to the Galactic source population study, making possible the deepest Galactic survey in hard X-rays ever compiled.
Aims: We aim to perform a Galactic su…
Herschel imaging of 61 Vir: implications for the prevalence of debris in low-mass planetary systems
Ivison, R. J.; Bryden, G.; Kavelaars, J. J. +15 more
This paper describes Herschel observations of the nearby (8.5 pc) G5V multi-exoplanet host star 61 Vir at 70, 100, 160, 250, 350 and 500 ?m carried out as part of the DEBRIS survey. These observations reveal emission that is significantly extended out to a distance of >15 arcsec with a morphology that can be fitted by a nearly edge-on (77° incl…
Coronal Magnetic Field Measurement from EUV Images Made by the Solar Dynamics Observatory
Gopalswamy, Nat; Akiyama, Sachiko; Yashiro, Seiji +2 more
By measuring the geometrical properties of the coronal mass ejection (CME) flux rope and the leading shock observed on 2010 June 13 by the Solar Dynamics Observatory (SDO) mission's Atmospheric Imaging Assembly we determine the Alfvén speed and the magnetic field strength in the inner corona at a heliocentric distance of ~1.4 Rs. The basic measure…
Major-merger Galaxy Pairs in the COSMOS Field—Mass-dependent Merger Rate Evolution since z = 1
Capak, P.; Scoville, N.; Gao, Y. +3 more
We present results of a statistical study of the cosmic evolution of the mass-dependent major-merger rate since z = 1. A stellar mass limited sample of close major-merger pairs (the CPAIR sample) was selected from the archive of the COSMOS survey. Pair fractions at different redshifts derived using the CPAIR sample and a local K-band-selected pair…
The first INTEGRAL-OMC catalogue of optically variable sources
Mas-Hesse, J. M.; Domingo, A.; Alfonso-Garzón, J. +1 more
Context. The Optical Monitoring Camera (OMC) onboard INTEGRAL provides photometry in the Johnson V-band. With an aperture of 50 mm and a field of view of 5° × 5°, OMC is able to detect optical sources brighter than V ~ 18, from a previously selected list of potential targets of interest. After more than nine years of observations, the OMC database…
Discovery of Nine Gamma-Ray Pulsars in Fermi Large Area Telescope Data Using a New Blind Search Method
Caraveo, P. A.; de Luca, A.; Belfiore, A. +28 more
We report the discovery of nine previously unknown gamma-ray pulsars in a blind search of data from the Fermi Large Area Telescope (LAT). The pulsars were found with a novel hierarchical search method originally developed for detecting continuous gravitational waves from rapidly rotating neutron stars. Designed to find isolated pulsars spinning at…
A Comprehensive View of a Strongly Lensed Planck-Associated Submillimeter Galaxy
Smail, I.; Pérez-Fournon, I.; Ivison, R. J. +48 more
We present high-resolution maps of stars, dust, and molecular gas in a strongly lensed submillimeter galaxy (SMG) at z = 3.259. HATLAS J114637.9-001132 is selected from the Herschel-Astrophysical Terahertz Large Area Survey (H-ATLAS) as a strong lens candidate mainly based on its unusually high 500 µm flux density (~300 mJy). It is the only …
Dielectric map of the Martian northern hemisphere and the nature of plain filling materials
Pommerol, Antoine; Kofman, Wlodek; Clifford, Stephen M. +2 more
A number of observations suggest that an extended ocean once covered a significant part of the Martian northern hemisphere. By probing the physical properties of the subsurface to unprecedented depth, the MARSIS/Mars Express provides new geophysical evidences for the former existence of a Late Hesperian ocean. The Vastitas Borealis formation, loca…
Nonlinear pitch angle scattering of relativistic electrons by EMIC waves in the inner magnetosphere
Omura, Yoshiharu; Zhao, Qinghua
We derive the second-order resonance condition for interaction between a relativistic electron and a coherent Electromagnetic Ion Cyclotron (EMIC) wave with a variable frequency. We perform test particle simulations of relativistic electrons interacting with EMIC waves with a fixed frequency and a rising-tone frequency such as EMIC triggered emiss…
Herschel observations of B1-bS and B1-bN: two first hydrostatic core candidates in the Perseus star-forming cloud
Hill, T.; White, G. J.; Könyves, V. +24 more
We report far-infrared Herschel observations obtained between 70 µm and 500 µm of two star-forming dusty condensations,