Search Publications
Missions
Journals
Publication Years
End-of-life disposal of libration point orbit missions: The case of Gaia
Armellin, Roberto; Rasotto, Mirco; Di Lizia, Pierluigi +1 more
This work investigates end of life disposal options for libration point orbit missions. Three different options are presented: the first one considers spacecraft's re-entry in Earth's atmosphere, the second one concerns the impact on the Moon, whereas the third one consists in the injection of the spacecraft into a heliocentric graveyard orbit. Th…
The nonlinear evolution of kinetic Alfvén wave with the ion acoustic wave and turbulent spectrum in the magnetopause region
Sharma, R. P.; Yadav, N.; Rinawa, M. L. +1 more
The mutual nonlinear interplay of kinetic Alfvén wave (KAW) and ion acoustic wave, for the high-β plasma (i.e., me/mi ≪ β ≪ 1, where β is thermal to magnetic pressure ratio) in the magnetopause, has been considered in the present study. A set of dimensionless nonlinear Schrödinger equations has been derived taking into accoun…
Long-term Monitoring of the Black Hole Candidate Swift J1753.5-0127 with INTEGRAL/SPI
Jourdain, E.; Roques, J. P.; Rodi, J.
The black hole candidate (BHC) Swift J1753.5-0127 went into outburst in 2005 June. Rather than fade into quiescence as most BHC transients do, it has remained in a low hard spectral state for most of the ∼9 years after its outburst. Its persistent emission during the hard state is reminiscent of the black hole Cyg X-1 and the BHCs 1E 1740.7-2942 a…
XMM-Newton and Chandra Observations of the M31 Globular Cluster Black Hole Candidate XB135: A Heavyweight Contender Cut Down to Size
Murray, S. S.; Garcia, M. R.; Barnard, R. +2 more
CXOM31 J004252.030+413107.87 is one of the brightest X-ray sources within the D25 region of M31, and associated with a globular cluster known as B135; we therefore call this X-ray source XB135. XB135 is a low-mass X-ray binary (LMXB) that apparently exhibited hard state characteristics at 0.3-10 keV luminosities 4-6× {{10}38}…
WFPC2 UV survey of Galactic globular clusters. The Horizontal Branch temperature distribution
Dalessandro, E.; Salaris, M.; Lagioia, E. P. +2 more
Ultraviolet observations are the best tool to study hot stellar populations which emit most of their light at short wavelengths. As part of a large project devoted to the characterization of the UV properties of Galactic globular clusters (GGCs), we collected mid/far UV and optical images with the WFPC2@HST for 31 GGCs. These clusters cover a wide…
Constraining nonminimal DBI inflation with Planck2015 results
Asadi, Kosar; Nozari, Kourosh; Rashidi, Narges
We study cosmological inflation and perturbations in a nonminimally coupled Dirac-Born-Infeld setup in the light of the recent observational data reported by Planck collaboration. By adopting some important inflationary potentials, we analyze the scalar spectral index and the tensor-to-scalar ratio in confrontation with Planck 2015 data. In this m…
Identification of the ~3.55 keV emission line candidate objects across the sky
Savchenko, D. O.; Iakubovskyi, D. A.
An emission line at the energy ~3.55 keV detected in different galaxies and galaxy clusters has caused numerous discussions in high-energy astrophysics and particle physics communities. To reveal the origin of the line, we analyzed publicly-available observations of MOS cameras from XMM-Newton cosmic observatory - the instrument with the largest s…
Can ring current stabilize magnetotail during steady magnetospheric convection?
Ganushkina, N.; Dubyagin, S.; Liemohn, M. +1 more
The present study investigates the role of the ring current in stabilizing the magnetotail during steady magnetospheric convection (SMC) events. We develop a method for estimation of the symmetric ring current intensity from the single spacecraft magnetic field observations. The method is applied to a large number of SMC events identified using th…
The Study of Triple Systems V949 Cen, V358 Pup and V1055 Sco
Mašek, M.; Zasche, P.; Juryšek, J. +1 more
The systems V949 Cen, V358 Pup, and V1055 Sco are triples comprised of an eclipsing binary orbiting with a distant visual component on a much longer orbit. The first detailed photometric analysis of these interesting systems was performed using also the archival data from Hipparcos, ASAS, SuperWASP, OMC, and Pi of the Sky surveys. The system V358 …
Rosetta mission results pre-perihelion
Alves, J.; Forveille, T.; Guillot, T. +2 more