Search Publications
Missions
Journals
Publication Years
A Rotating Azimuthally Distributed Auroral Current System on Saturn Revealed by the Cassini Spacecraft
Coates, A. J.; Krupp, N.; Dougherty, M. K. +14 more
Stunning aurorae are mainly produced when accelerated electrons travel along magnetic field lines to collide with the atmosphere. The motion of electrons often corresponds to the evolution of a magnetic field-aligned current system. In the terrestrial magnetosphere, the current system is formed at the night-side sector, and thus produces an aurora…
GG Carinae: orbital parameters and accretion indicators from phase-resolved spectroscopy and photometry
Grant, David; Porter, Augustus; Blundell, Katherine +1 more
B[e] supergiants are a rare and unusual class of massive and luminous stars, characterized by opaque circumstellar envelopes. GG Carinae is a binary whose primary component is a B[e] supergiant and whose variability has remained unsatisfactorily explained. Using photometric data from ASAS, OMC, and ASAS-SN and spectroscopic data from the Global Je…
Environments of a sample of AzTEC submillimetre galaxies in the COSMOS field
Finoguenov, A.; Aravena, M.; Barrufet, L. +2 more
Aims: Submillimetre galaxies (SMGs) are bright sources at submillimetre wavelengths (F850 µm > 2-5 mJy). Made up of mostly of high-z galaxies (z > 1), SMGs are amongst the most luminous dusty galaxies in the Universe. These galaxies are thought to be the progenitors of the massive elliptical galaxies in the local Univer…
Changes in granulation scales over the solar cycle seen with SDO/HMI and Hinode/SOT
Malherbe, J. M.; Roudier, T.; Ballot, J. +1 more
Context. The Sun is the only star where the superficial turbulent convection can be observed at very high spatial resolution. The Solar Dynamics Observatory (SDO) has continuously observed the full Sun from space with multi-wavelength filters since July 2010. In particular, the Helioseismic and Magnetic Imager (HMI) instrument takes high-cadence f…
Space Telescope and Optical Reverberation Mapping Project. XIII. An Atlas of UV and X-Ray Spectroscopic Signatures of the Disk Wind in NGC 5548
Kriss, G. A.; Mehdipour, M.; Peterson, B. M. +8 more
The unusual behavior of the spectral lines of NGC5548 during the STORM campaign demonstrated a missing piece in the structure of AGNs. For a two-month period in the middle of the campaign, the spectral lines showed a deficit in flux and a reduced response to the variations of the UV continuum. This was the first time that this behavior was unequiv…
Interplanetary Shock Candidates Observed at Venus's Orbit
Wang, Yuming; Shen, Chenglong; Xu, Mengjiao +2 more
The measurements from the Venus Express spacecraft are analyzed for the basic properties of fast forward interplanetary shocks at Venus's orbit (∼0.72 au). A total of 143 fast forward interplanetary shock candidates during 2006-2014 are identified. The shock angle ΘBn, defined as the angle between the shock normal and the upstream magne…
Modeling the Hydrodynamics, Sediment Transport, and Valley Incision of Outlet-Forming Floods From Martian Crater Lakes
Goudge, Timothy A.; Fassett, Caleb I.
Open-basin lakes that have outlets, formed where the stored water breached the basin-confining topography (e.g., crater rims), have been recognized on Mars for decades. However, the mechanics involved in formation of these outlets has not been studied in detail. Here, we study this outlet formation process through a series of numerical experiments…
Revisiting pulsar velocities using Gaia Data Release 2
Tsai, Chao-Wei; Li, Di; Zhang, Jie +3 more
Precise measurements of neutron star (NS) velocities provide critical clues in regard to the supernova physics and evolution of binary systems. Based on Gaia Data Release 2 (DR2), we selected a sample of 24 young (< 3 Myr) pulsars with precise parallax measurements and measured the velocity of their local standard of rest (LSR) and the velocity…
Google dataset search and DOI for data in the ESA space science archives
De Marchi, Guido; Masson, Arnaud; Merin, Bruno +3 more
Reproducibility is at the core of science. For this reason, a common practice for authors is to provide links to the data used in their manuscripts upon submission to peer-reviewed journals. In space science, reference to archives' websites of major data providers like space agencies are still accepted by most journals. However, even these website…
Low-frequency radio spectra of submillimetre galaxies in the Lockman Hole
Bondi, M.; Prandoni, I.; Franco, M. +19 more
Aims: We investigate the radio properties of a sample of 850 µm-selected sources from the SCUBA-2 Cosmology Legacy Survey (S2CLS) using new deep, low-frequency radio imaging of the Lockman Hole field from the Low Frequency Array. This sample consists of 53 sources, 41 of which are detected at >5σ at 150 MHz.
Methods: Combining t…