Search Publications
Missions
Journals
Publication Years
Orbits for Nine Binaries and One Linear Solution
Cvetković, Z.; Pavlović, R.; Ninković, S.
The subject of the present paper is the analysis of the orbital elements for nine binaries: WDS 00463-0634 = HDS 101, WDS 03264+3520 = HDS 430, WDS 03307-1926 = HDS 441, WDS 04025+0638 = HDS 510, WDS 09252+4606 = HDS 1353, WDS 09446+6459 = CHR 176, WDS 10294+1211 = HDS 1507, WDS 10596+1800 = HDS 1568, and WDS 14562+1745 = HDS 2108. The orbital ele…
Subsurface Characterization of 67P/Churyumov-Gerasimenko’s Abydos Site
Jorda, L.; Lamy, P.; Mousis, O. +12 more
On 2014 November 12, the ESA/Rosetta descent module Philae landed on the Abydos site of comet 67P/Churyumov-Gerasimenko. Aboard this module, the Ptolemy mass spectrometer measured a CO/CO2 ratio of 0.07 ± 0.04, which differs substantially from the value obtained in the coma by the Rosetta/ROSINA instrument, suggesting a heterogeneity in…
Observations of diffusion in the electron halo and strahl
Goldstein, Melvyn L.; Gurgiolo, Chris
Observations of the three-dimensional solar wind electron velocity distribution functions (VDF) using ϕ-θ plots often show a tongue of electrons that begins at the strahl and stretches toward a new population of electrons, termed the proto-halo, that exists near the projection of the magnetic field opposite that associated with the strahl. The ene…
Starbursting brightest cluster galaxy: a Herschel view of the massive cluster MACS J1931.8-2634
Altieri, B.; Valtchanov, I.; Grillo, C. +9 more
We investigate the dust-obscured star formation (SF) properties of the massive, X-ray-selected galaxy cluster MACS J1931.8-2634 at z = 0.352. Using far-infrared (FIR) imaging in the range 100-500 µm obtained with the Herschel telescope, we extract 31 sources (2σ) within r ∼ 1 Mpc from the brightest cluster galaxy (BCG). Among these sources, …
XMM-Newton large programme on SN1006 - II. Thermal emission
Vink, Jacco; Miceli, Marco; Bocchino, Fabrizio +2 more
Based on the XMM-Newton large programme on SN1006 and our newly developed tools for spatially resolved spectroscopy analysis as described in Li et al. (Paper I), we study the thermal emission from interstellar medium (ISM) and ejecta of SN1006 by analysing the spectra extracted from 583 tessellated regions dominated by thermal emission. With some …
Distribution of star formation rates during the rapid assembly of NGC 1399 as deduced from its globular cluster system
Hilker, M.; Pflamm-Altenburg, J.; Kroupa, P. +1 more
Ultra-compact dwarf galaxies (UCDs) share many properties with globular clusters (GCs) and are found in similar environments. Here, a large sample of UCDs and GCs around NGC 1399, the central giant elliptical of the Fornax galaxy cluster, is used to infer their formation history and also to shed light on the formation of NGC 1399 itself. We assume…
Particle-in-cell modeling of spacecraft-plasma interaction effects on double-probe electric field measurements
Miyake, Y.; Usui, H.
The double-probe technique, commonly used for electric field measurements in magnetospheric plasmas, is susceptible to environmental perturbations caused by spacecraft-plasma interactions. To better model the interactions, we have extended the existing particle-in-cell simulation technique so that it accepts very small spacecraft structures, such …
Rayed craters on Dione: Implication for the dominant surface alteration process
Hirata, Naoyuki; Miyamoto, Hideaki
From recently-acquired, high-resolution images obtained by the Cassini spacecraft, we examine the patterns and spatial distributions of rayed craters on Dione. We identify 29 rayed craters with diameters larger than 2 km on Dione's surface. The density of rayed craters and theoretical cratering rates indicate that the retention time for rays on Di…
A Deep Search for Additional Satellites around the Dwarf Planet Haumea
Brown, Michael E.; Ragozzine, Darin; Burkhart, Luke D.
Haumea is a dwarf planet with two known satellites, an unusually high spin rate, and a large collisional family, making it one of the most interesting objects in the outer solar system. A fully self-consistent formation scenario responsible for the satellite and family formation is still elusive, but some processes predict the initial formation of…
MHD-IPS analysis of relationship among solar wind density, temperature, and flow speed
Hayashi, Keiji; Tokumaru, Munetoshi; Fujiki, Ken'ichi
The solar wind properties near the Sun are a decisive factor of properties in the rest of heliosphere. As such, determining realistic plasma density and temperature near the Sun is very important in models for solar wind, specifically magnetohydrodynamics (MHD) models. We had developed a tomographic analysis to reconstruct three-dimensional solar …