Search Publications
The study of variations of low energy cosmic helium's flux (up to 6 MeV) due to solar activity
Shayan, M.; Davoudifar, P.; Bagheri, Z.
In General, the flux of low energy cosmic rays varies with time due to solar activities. The cosmic particle fluxes were studied using data of satellites near the Earth. In this work, first we studied the variations of particle fluxes from 1 Jan to 31 Dec 2000 and 35 events were selected. Then we proposed a relation for cosmic particle flux as a f…
a Systematic Study of Dust in Early-Type Galaxies with Akari
Oyabu, Shinki; Yamagishi, Mitsuyoshi; Kaneda, Hidehiro +3 more
Proton radiation damage assessment of a CCD for use in a Ultraviolet and Visible Spectrometer
Hathi, B.; Patel, M.; Gow, J. P. D. +2 more
This paper describes the radiation environment and radiation damage analysis performed for the Nadir and Occultation for MArs Discovery (NOMAD) Ultraviolet and Visible Spectrometer (UVIS) channel launched onboard the ExoMars Trace Gas Orbiter (TGO) in 2016. The aim of the instrument is to map the temporal and spatial variation of trace gases such …
Searching for Ulirgs by Using Akari and Wise
Matsuhara, Hideo; Koyama, Shuhei
Multi-frequency databases for AGN investigation - Results and perspectives
La Mura, Giovanni; Berton, Marco; Chen, Sina +5 more
Active Galactic Nuclei (AGNs) are characterized by emission of radiation over more than 10 orders of magnitude in frequency. Therefore, the execution of extensive surveys of the sky, with different types of detectors, is providing the attractive possibility to identify and to investigate the properties of AGNs on very large statistical samples. Th…
Probing Star Formation in Ultraluminous Infrared Galaxies Using Akari Near-Infrared Spectroscopy
Nakagawa, Takao; Isobe, Naoki; Shirahata, Mai +1 more
Perspectives for observing hot massive stars with XMM-Newton in the years 2017-2027
Rauw, G.
XMM-Newton has deeply changed our picture of X-ray emission of hot massive stars. High-resolution X-ray spectroscopy, as well as monitoring of these objects, has helped us to gain a deeper insight into the physics of single massive stars with or without magnetic fields, as well as of massive binary systems, where the stellar winds of both stars in…
Modelling the 3 Micron Region in Akari IRC Spectra
Onaka, Takashi; Usui, Fumihiko; Hammonds, Mark +1 more
An Extension of a Reliable Wavelength Coverage of the Akari NG GRISM Mode
Nakagawa, Takao; Baba, Shunsuke; Isobe, Naoki +4 more
Standard and Truncated Luminosity Functions for Stars in the Gaia Era
Zaninetti, Lorenzo
The luminosity function (LF) for stars is here fitted by a Schechter function and by a Gamma probability density function. The dependence of the number of stars on the distance, both in the low and high luminosity regions, requires the inclusion of a lower and upper boundary in the Schechter and Gamma LFs. Three astrophysical applications for star…