Search Publications
Future dedicated Venus-SGG flight mission: Accuracy assessment and performance analysis
Zheng, Wei; Hsu, Houtse; Zhong, Min +1 more
This study concentrates principally on the systematic requirements analysis for the future dedicated Venus-SGG (spacecraft gravity gradiometry) flight mission in China in respect of the matching measurement accuracies of the spacecraft-based scientific instruments and the orbital parameters of the spacecraft. Firstly, we created and proved the sin…
Comparison of diffuse infrared and far-ultraviolet emission in the Large Magellanic Cloud: The data
Shalima, P.; Gogoi, Rupjyoti; Saikia, Gautam +1 more
Dust scattering is the main source of diffuse emission in the far-ultraviolet (FUV). For several locations in the Large Magellanic Cloud (LMC), Far Ultraviolet Spectroscopic Explorer (FUSE) satellite has observed diffuse radiation in the FUV with intensities ranging from 1000 to 3×105 photon units and diffuse fraction between 5% and 20%…
Measuring Structural Parameters Through Stacking Galaxy Images
Li, Yubin; Zheng, Xian Zhong; Gu, Qiu-Sheng +4 more
It remains challenging to detect the low surface brightness structures of faint high-z galaxies, which are key to understanding the structural evolution of galaxies. The technique of image stacking allows us to measure the averaged light profile beneath the detection limit and probe the extended structure of a group of galaxies. We carry out simul…
Gaia benchmark stars and their twins in the Gaia-ESO Survey
Jofré, P.
The Gaia benchmark stars are stars with very precise stellar parameters that cover a wide range in the HR diagram at various metallicities. They are meant to be good representative of typical FGK stars in the Milky Way. Currently, they are used by several spectroscopic surveys to validate and calibrate the methods that analyse the data. I review o…
A variety of radars designed to explore the hidden structures and properties of the Solar System's planets and bodies
Ciarletti, Valérie
Since the very first observations of the Moon from the Earth with radar in 1946, radars are more and more frequently selected to be part of the payload of exploration missions in the Solar System. They are, in fact, able to collect information on the surface structure of bodies or planets hidden by opaque atmospheres, to probe the planet subsurfac…
Evidence for a Very Low-column Density Hole in the Galactic Halo in the Direction of the High Latitude Molecular Cloud MBM 16
Liu, W.; Galeazzi, M.; Ursino, E.
Shadow observations are the only way to observe emission from the galactic halo (GH) and/or the circumgalactic medium (CGM) free of any foreground contamination from local hot bubble (LHB) and solar wind charge exchange (SWCX). We analyzed data from a shadow observation in the direction of the high latitude, neutral hydrogen cloud MBM 16 with Suza…
The bandmerged Planck Early Release Compact Source Catalogue: probing sub-structure in the molecular gas at high Galactic latitude
Helou, G.; McGehee, P.; Pearson, T. J. +3 more
The Planck Early Release Compact Source Catalogue (ERCSC) includes nine lists of highly reliable sources, individually extracted at each of the nine Planck frequency channels. To facilitate the study of the Planck sources, especially their spectral behaviour across the radio/infrared frequencies, we provide a `bandmerged' catalogue of the ERCSC so…
Results of a hubble space telescope search for natural satellites of dwarf planet 1 ceres
Russell, Christopher T.; Li, Jian-Yang; Schmidt, Britney E. +4 more
In order to prepare for the arrival of the Dawn spacecraft at Ceres, a search for satellites was undertaken by the Hubble Space Telescope (HST) to enhance the mission science return and to ensure spacecraft safety. Previous satellite searches from ground-based telescopes have detected no satellites within Ceres' Hill sphere down to a size of 3 km …
The classification of cislunar trajectories and its applications in the Earth–Moon system
Xu, Ming; Xu, Shijie; Liang, Yuying
This paper considers the evolvement of cislunar transfers and addresses two distinct types, i.e., direct and low-energy transfers based on Apollo and SMART-1 missions. Both direct and low-energy trajectories are discussed systematically in the context of restricted three-body dynamics in this paper. The differences between them are assessed by con…
Image stacking analysis of SDSS galaxies with AKARI Far-Infrared Surveyor maps at 65 µm, 90 µm, and 140 µm
Doi, Yasuo; Takita, Satoshi; Ootsubo, Takafumi +4 more
We perform image stacking analysis of Sloan Digital Sky Survey (SDSS) photometric galaxies over the AKARI Far-Infrared Surveyor maps at 65 µm, 90 µm, and 140 µm. The resulting image profiles are decomposed into the central galaxy component (single term) and the nearby galaxy component (clustering term), as a function of the r-ban…