Search Publications
Determination of the orbits of 62 moons of asteroids based on astrometric observations.
Emelyanov, N. V.; Drozdov, A. E.
Based on all published astrometric observations, we have determined the moon orbits for asteroids using a model of the fixed Keplerian orbit. We applied 5-114 observations for each moon. As a result, we have determined the orbits of 62 moons. All results, including the orbital parameters obtained, are presented in the tables that are provided as s…
The GBT Diffuse Ionized Gas Survey: Tracing the Diffuse Ionized Gas around the Giant Hii Region W43
Liu, Bin; Anderson, L. D.; Bania, T. M. +4 more
The Green Bank Telescope Diffuse Ionized Gas Survey (GDIGS) is a fully sampled radio recombination line (RRL) survey of the inner Galaxy at C-band (4-8 GHz). We average together ∼15 Hnα RRLs within the receiver bandpass to improve the spectral signal-to-noise ratio. The average beam size for the RRL observations at these frequencies is ∼2'. We gri…
APEX CO observations towards the photodissociation region of RCW 120
Zavagno, A.; Russeil, D.; Schuller, F. +3 more
Context. The edges of ionized (H II) regions are important sites for the formation of (high-mass) stars. Indeed, at least 30% of the Galactic high-mass-star formation is observed there. The radiative and compressive impact of the H II region could induce star formation at the border following different mechanisms such as the collect and collapse o…
Detection of a possible multiphase ultra-fast outflow in IRAS 13349+2438 with NuSTAR and XMM-Newton
Schartel, N.; Santos-Lleó, M.; Fabian, A. C. +6 more
We present joint NuSTAR and XMM-Newton observations of the bright, variable quasar IRAS 13349+2438. This combined data set shows two clear iron absorption lines at 8 and 9 keV, which are most likely associated with two layers of mildly relativistic blueshifted absorption, with velocities of ∼0.14c and ∼0.27c. We also find strong evidence for a ser…
Parametric Dependence of the Formation of Electron Butterfly Pitch Angle Distribution Driven by Magnetosonic Waves
Fu, Song; Ni, Binbin; Gu, Xudong +10 more
Using the full relativistic test particle (TP) simulation code, we investigate the parametric dependence of electron scattering and phase space density evolution driven by magnetosonic (MS) waves at L = 4.5 both inside and outside the plasmapause. The scattering effects caused by Landau resonance, bounce resonance, and the transit-time effect are …
Multiwavelength investigation of extended green object G19.88-0.53: revealing a protocluster
Tej, Anandmayee; Liu, Tie; Ishwara Chandra, C. H. +5 more
A multiwavelength analysis of star formation associated with the extended green object, G19.88-0.53 is presented in this paper. With multiple detected radio and millimetre components, G19.88-0.53 unveils as harbouring a protocluster rather than a single massive young stellar object. We detect an ionized thermal jet using the upgraded Giant Meterwa…
Hard-X-ray-selected active galactic nuclei - I. A radio view at high frequencies
McHardy, I.; Behar, E.; Tombesi, F. +5 more
A thorough study of radio emission in active galactic nuclei (AGNs) is of fundamental importance to understand the physical mechanisms responsible for the emission and the interplay between accretion and ejection processes. High-frequency radio observations can target the nuclear contribution of smaller emitting regions and are less affected by ab…
Three-Dimensional Reconstructions of Coronal Wave Surfaces Using a New Mask-Fitting Method
Feng, Li; Lu, Lei; Gan, Weiqun +5 more
Coronal waves are large-scale disturbances often driven by coronal mass ejections (CMEs). We investigate a spectacular wave event on 7 March 2012, which is associated with an X5.4 flare (SOL2012-03-07). By using a running center-median (RCM) filtering method for the detection of temporal variations in extreme ultraviolet (EUV) images, we enhance t…
White-light Emission and Chromospheric Response by an X1.8-class Flare on 2012 October 23
Watanabe, Kyoko; Imada, Shinsuke
On 2012 October 23, a strong white-light emission, associated with an X1.8-class flare, was observed by the Solar Optical Telescope on board the Hinode satellite. White-light kernels were clearly observed along the Ca II H ribbons. RHESSI also observed hard X-ray emissions that were almost located on the white-light kernels. The total energy of th…
A high redshift population of galaxies at the North Ecliptic Pole. Unveiling the main sequence of dusty galaxies
Valtchanov, I.; White, G. J.; Małek, K. +16 more
Context. Dusty high-z galaxies are extreme objects with high star formation rates (SFRs) and luminosities. Characterising the properties of this population and analysing their evolution over cosmic time is key to understanding galaxy evolution in the early Universe.
Aims: We select a sample of high-z dusty star-forming galaxies (DSFGs) and ev…