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Time delay of interplanetary magnetic field penetration into Earth's magnetotail
Petrukovich, A. A.; Wei, Y.; Zhang, T. L. +6 more
Many previous studies have demonstrated that the interplanetary magnetic field (IMF) can control the magnetospheric dynamics. Immediate magnetospheric responses to the external IMF have been assumed for a long time. The specific processes by which IMF penetrates into magnetosphere, however, are actually unclear. Solving this issue will help to acc…
ALMA detection of [C ii] 158 µm emission from a strongly lensed z = 2.013 star-forming galaxy
Schaerer, D.; Jones, T.; Dessauges-Zavadsky, M. +9 more
Aims: Our objectives are to determine the properties of the interstellar medium (ISM) and of star formation in typical star-forming galaxies at high redshift.
Methods: Following up on our previous multi-wavelength observations with HST, Spitzer, Herschel, and the Plateau de Bure Interferometer (PdBI), we have studied a strongly lensed z …
Indications of R-mode Oscillations in SOHO/MDI Solar Radius Measurements
Scargle, J. D.; Gough, D. O.; Sturrock, P. A. +1 more
Analysis of solar radius measurements acquired by the Michelson Doppler Imager on the Solar and Heliospheric Observatory spacecraft supports previously reported evidence of solar internal r-mode oscillations in Mt Wilson radius data and in 90Sr beta-decay data. The frequencies of these oscillations are compatible with oscillations in a …
Quantum gravity and the large scale anomaly
Kamenshchik, Alexander Y.; Tronconi, Alessandro; Venturi, Giovanni
The spectrum of primordial perturbations obtained by calculating the quantum gravitational corrections to the dynamics of scalar perturbations is compared with Planck 2013 and BICEP2/Keck Array public data. The quantum gravitational effects are calculated in the context of a Wheeler-De Witt approach and have quite distinctive features. We constrai…
Ionized gas at the edge of the central molecular zone
Goldsmith, P. F.; Langer, W. D.; Requena-Torres, M. A. +3 more
Context. The edge of the central molecular zone (CMZ) is the location where massive dense molecular clouds with large internal velocity dispersions transition to the surrounding more quiescent and lower CO emissivity region of the Galaxy. Little is known about the ionized gas surrounding the molecular clouds and in the transition region.
Aims…
Volcanism-induced, local wet-based glacial conditions recorded in the Late Amazonian Arsia Mons tropical mountain glacier deposits
Head, James W.; Marchant, David R.; Scanlon, Kathleen E.
The tropical mountain glacial fan-shaped deposit (FSD) to the northwest of the Arsia Mons volcano on Mars contains numerous glacial and volcanic landforms. While most of the glacial landforms are interpreted to have formed by cold-based glacial processes, several glacial landforms near glaciovolcanic edifices are more consistent with localized wet…
The Dragonfly Galaxy. II. ALMA unveils a triple merger and gas exchange in a hyper-luminous radio galaxy at z = 2
Villar-Martín, M.; Seymour, N.; Nesvadba, N. +9 more
The Dragonfly Galaxy (MRC 0152-209), at redshift z ~ 2, is one of the most vigorously star-forming radio galaxies in the Universe. What triggered its activity? We present ALMA Cycle 2 observations of cold molecular CO(6-5) gas and dust, which reveal that this is likely a gas-rich triple merger. It consists of a close double nucleus (separation ~4 …
Physical Conditions of Coronal Plasma at the Transit of a Shock Driven by a Coronal Mass Ejection
Bemporad, A.; Susino, R.; Mancuso, S.
We report here on the determination of plasma physical parameters across a shock driven by a coronal mass ejection using white light (WL) coronagraphic images and radio dynamic spectra (RDS). The event analyzed here is the spectacular eruption that occurred on 2011 June 7, a fast CME followed by the ejection of columns of chromospheric plasma, par…
The VMC/VEx photometry at small phase angles: Glory and the physical properties of particles in the upper cloud layer of Venus
Markiewicz, Wojciech J.; Petrova, Elena V.; Shalygina, Oksana S.
With the Venus Monitoring Camera onboard the Venus Express orbiter, for the first time full glory on the upper cloud layer of Venus has been imaged. Images were acquired in three wavelengths of 0.365, 0.513, and 0.965 µm. Glory is an optical phenomenon that poses stringent constraints on the cloud properties. The fact of the observed glory i…
Short- and Long-Term Radio Variability of Young Stars in The Orion Nebula Cluster and Molecular Cloud
Martín-Pintado, J.; Sanz-Forcada, J.; Chandler, C. J. +3 more
We have used the Karl G. Jansky Very Large Array (VLA) to carry out multi-epoch radio continuum monitoring of the Orion Nebula Cluster (ONC) and the background Orion Molecular Cloud (OMC; 3 epochs at Q band and 11 epochs at Ka band). Our new observations reveal the presence of 19 radio sources, mainly concentrated in the Trapezium Cluster and the …