Search Publications
Missions
Journals
Publication Years
X-ray studies of solar system objects: Past, present, and the next decade
Branduardi-Raymont, G.
This paper presents an overview of the remarkable progress that X-ray studies of solar system objects have delivered over the past three decades, covering research that encompasses remote observations with XMM-Newton and Chandra, in situ measurements by planetary missions, and models of solar wind propagation from 1 AU. The future of X-ray explora…
A broad spectral feature detected during the cooling phase of a type I X-ray burst from GRS 1747-312 with Suzaku
Dotani, Tadayasu; Maeda, Yoshitomo; Mori, Hideyuki +3 more
We analyzed the Suzaku archive data of a type I X-ray burst from GRS 1747-312, a low-mass X-ray binary located in the globular cluster Terzan 6. During the Galactic bulge mapping observations with Suzaku, which covered Terzan 6, an X-ray burst of long duration and with moderate photospheric-radius expansion was serendipitously detected and was con…
A Galactic Molecular Cloud Clump Catalog from Hi-GAL Data: Method and Initial Results Comparison with BGPS
Rosolowsky, Erik; Zetterlund, Erika; Glenn, Jason
As the precursors to stellar clusters, it is imperative that we understand the distribution and physical properties of dense molecular gas clouds and clumps. Such a study has been done with the ground-based Bolocam Galactic Plane Survey (BGPS). Now the Herschel infrared GALactic plane survey (Hi-GAL) allows us to do the same with higher-quality da…
Retrieval of Venus' cloud parameters from VIRTIS nightside spectra in the latitude band 25°-55°N
Piccioni, Giuseppe; Grassi, Davide; Magurno, Davide +2 more
Two years of data from the M-channel of the Visible and InfraRed Thermal Imaging Spectrometer (VIRTIS), on board the European Space Agency mission Venus Express operating around the planet Venus, are analysed. Nocturnal data from a nadir viewpoint in the latitude band 25°N-55°N are selected for their configuration advantages and maximisation of th…
Nonlinear propagation of kinetic Alfvén wave and turbulent spectrum in reconnection region of magnetotail
Sharma, R. P.; Yadav, Nitin; Sharma, Prachi +2 more
Kinetic Alfvén waves (KAWs) are known to play an important role in magnetic reconnection as well as in turbulence. In the present work, we have derived the dynamical equation of KAWs propagating through Harris sheet. It is assumed that background density gets modified due to nonlinearity and background field gets modified due to the presence of Ha…
Interferometry imaging technique for accurate deep-space probe positioning
Zhang, Juan; Shu, Fengchun; Liu, Lei +2 more
Very long baseline interferometry (VLBI) is a radio astronomy tool with very high spatial resolution. It uses two or more radio telescopes to track the faraway object and gets its visibility. The intensity distribution image of radio source can be obtained by the inverse Fourier transformation of the visibilities sampled on UV plane perpendicular …
ASCA and XMM-Newton Observations of the Galactic Supernova Remnant G311.5-0.3
Filipović, M. D.; Maxted, N.; Wong, G. F. +4 more
We present an analysis of X-ray observations made with ASCA and XMM-Newton of the Galactic supernova remnant (SNR) G311.5-0.3. Prior infrared and radio observations of this SNR have revealed a shell-like morphology at both wavelengths. The spectral index of the radio emission is consistent with synchrotron emission, while the infrared colors are c…
A Jet Source of Event Horizon Telescope Correlated Flux in M87
Punsly, Brian
Event Horizon Telescope (EHT) observations at 230 GHz are combined with Very Long Baseline Interferometry (VLBI) observations at 86 GHz and high-resolution Hubble Space Telescope optical observations in order to constrain the broadband spectrum of the emission from the base of the jet in M87. The recent VLBI observations of Hada et al. provide muc…
Spatial distribution of impact craters on Deimos
Hirata, Naoyuki
Deimos, one of the Martian moons, has numerous impact craters. However, it is unclear whether crater saturation has been reached on this satellite. To address this issue, we apply a statistical test known as nearest-neighbor analysis to analyze the crater distribution of Deimos. When a planetary surface such as the Moon is saturated with impact cr…
XMM-Newton imaging of V1818 Orionis: a young stellar group on the eastern edge of the κ Ori ring
Megeath, S. T.; Pillitteri, I.; Wolk, S. J.
We present the results of a 40 ks XMM-Newton observation centered on the variable star V1818 Ori. Using a combination of the XMM-Newton and AllWISE catalog data, we identify a group of about 31 young stellar objects (YSOs) around V1818 Ori. This group is coincident with the eastern edge of the dust ring surrounding κ Ori. Previously, we concluded …