Buscar
Mostrando ítems 31-40 de 304
Infrared and radio study of the W43 cluster: resolved binaries and non-thermal emission
(EDP Sciences, 2011-08)
Context. The recent detection of very high-energy (VHE) gamma-ray emission from the direction of the W43 star-forming region prompted us to investigate its stellar population in detail in an attempt to see wether or not ...
Investigation of the WR 11 field at decimeter wavelengths
(EDP Sciences, 2019-05)
The massive binary system WR 11 (γ2-Velorum) has recently been proposed as the counterpart of a Fermi source. If this association is correct, this system would be the second colliding wind binary detected in GeV γ-rays. ...
Discovering the colliding wind binary HD 93129A
(Sissa, 2015)
HD 93129A is a binary system including an O2 If+ and probably an O3.5 V-star orbiting at a distance of about 140 AU (55 mas given the distance of 2.5 kpc), which potentially makes the system the most massive one in the ...
Probing the final stages of protoplanetary disk evolution with ALMA
(EDP Sciences, 2015)
Context. The evolution of a circumstellar disk from its gas-rich protoplanetary stage to its gas-poor debris stage is not understood well. It is apparent that disk clearing progresses from the inside-out on a short time ...
The host galaxies and progenitors of fast radio bursts localized with the Australian square kilometre Array Pathfinder
(IOP Publishing, 2020)
The Australian SKA Pathfinder (ASKAP) telescope has started to localize fast radio bursts (FRBs) to arcsecond accuracy from the detection of a single pulse, allowing their host galaxies to be reliably identified. We discuss ...
Identification of the optical and near-infrared counterpart of GRS 1758-258
(EDP Sciences, 2010-09)
Context. Understood to be a microquasar in the Galactic center region, GRS 1758-258 has not yet been unambiguously identified to have an optical/near-infrared counterpart, mainly because of the high absorption and the ...
Deep VLA images of the HH 124 IRS radio cluster and its surroundings, and a new determination of the distance to NGC 2264
(The American Astronomical SocietyChicago, 2014)
We present new deep (σ ∼ 6 μJy) radio images of the HH 124 IRS radio cluster at 4.8 and 7.5 GHz.We detect a total
of 50 radio sources, most of them compact. Variability and spectral indices were analyzed in order to ...