Search Publications
Revealing the nature of central emission nebulae in the dwarf galaxy NGC 185
Ilić, D.; Vučetić, M. M.; Onić, D. +6 more
Aims: In this paper we present new optical observations of the galaxy NGC 185 intended to reveal the status of supernova remnants (SNRs) in this dwarf companion of the Andromeda galaxy. Previously, it was reported that this galaxy hosts one SNR.
Methods: Our deep photometric study with the 2m telescope at Rozhen National Astronomical Obs…
Murchison Widefield Array and XMM-Newton observations of the Galactic supernova remnant G5.9+3.1
Haberl, F.; Callingham, J. R.; Filipović, M. D. +27 more
Aims: In this paper we discuss the radio continuum and X-ray properties of the so-far poorly studied Galactic supernova remnant (SNR) G5.9 + 3.1.
Methods: We present the radio spectral energy distribution (SED) of the Galactic SNR G5.9 + 3.1 obtained with the Murchison Widefield Array (MWA). Combining these new observations with the surv…
Link between trees of fragmenting granules and deep downflows in MHD simulation
Malherbe, J. M.; Roudier, T.; Frank, Z. +1 more
Context. Trees of fragmenting granules (TFG) and associated flows are suspected to play a major role in the formation of the network in the quiet Sun. We investigate the counterparts, in terms of dynamics, of surface structures detectable by high resolution observations in deeper layers up to 15 Mm, which are only available from numerical simulati…
Absolute dimensions of the low-mass eclipsing binary system NSVS 10653195
Torres, Guillermo; López-Morales, Mercedes; Coughlin, Jeffrey L. +3 more
Context. Low-mass stars in eclipsing binary systems show radii larger and effective temperatures lower than theoretical stellar models predict for isolated stars with the same masses. Eclipsing binaries with low-mass components are hard to find due to their low luminosity. As a consequence, the analysis of the known low-mass eclipsing systems is k…
X-ray analysis of the accreting supermassive black hole in the radio galaxy PKS 2251+11
Tombesi, F.; Panessa, F.; Bruni, G. +2 more
Context. We have investigated the dichotomy between jetted and non-jetted active galactic nuclei (AGNs), focusing on the fundamental differences of these two classes in the accretion physics onto the central supermassive black hole (SMBH). We tested the validity of the unification model of AGNs through the characterization of the mutual interactio…
UV core dimming in coronal streamer belt and the projection effects
Abbo, L.; Giordano, S.; Ofman, L.
During solar minimum activity, the coronal structure is dominated by a tilted streamer belt, associated with the sources of the slow solar wind. It is known that some UV coronal spectral observations show a quite evident core dimming in heavy ions emission in quiescent streamers. In this paper, our purpose is to investigate this phenomenon by comp…
Open cluster kinematics with Gaia DR2 (Corrigendum)
Castro-Ginard, A.; Jordi, C.; Casamiquela, L. +16 more
The table with clusters velocities is only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (http://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/623/C2
Ultraviolet photo-ionisation in far-infrared selected sources
Curran, S. J.; Duchesne, S. W.
It has been reported that there is a deficit of stellar heated dust, as evident from the lack of far-infrared (FIR) emission, in sources within the Herschel-SPIRE sample with X-ray luminosities exceeding a critical value of LX ∼ 1037 W. Such a scenario would be consistent with the suppression of star formation by the AGN, req…
Comparative analysis of solar radio bursts before and during CME propagation
Poedts, S.; Dididze, G.; Shergelashvili, B. M. +5 more
Context. As is well known, coronal mass ejection (CME) propagation often results in the fragmentation of the solar atmosphere on smaller regions of density (magnetic field) enhancement (depletion). It is expected that this type of fragmentation may have radio signatures.
Aims: The general aim of the present paper is to perform a comparative a…
Joint cluster reconstructions. Combing free-form lensing and X-rays
Bartelmann, Matthias; Merten, Julian; Hilbert, Stefan +2 more
Context. Galaxy clusters provide a multitude of observational data across wavelengths, and their structure and morphology are of considerable interest in cosmology as well as astrophysics.
Aims: We develop a framework that allows the combination of lensing and non-lensing observations in a free-form and mesh-free approach to infer the project…