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SELFI: an object-based, Bayesian method for faint emission line source detection in MUSE deep field data cubes
Bacon, Roland; Meillier, Céline; Chatelain, Florent +4 more
We present SELFI, the Source Emission Line FInder, a new Bayesian method optimized for detection of faint galaxies in Multi Unit Spectroscopic Explorer (MUSE) deep fields. MUSE is the new panoramic integral field spectrograph at the Very Large Telescope (VLT) that has unique capabilities for spectroscopic investigation of the deep sky. It has prov…
The [Ne III] Jet of DG Tau and its Ionization Scenarios
Herczeg, Gregory J.; Liu, Chun-Fan; Shang, Hsien +1 more
Forbidden neon emission from jets of low-mass young stars can be used to probe the underlying high-energy processes in these systems. We analyze spectra of the jet of DG Tau obtained with the Very Large Telescope/X-Shooter spectrograph in 2010. [Ne III] λ 3869 is clearly detected in the innermost 3″ microjet and the outer knot located at ∼ 6\build…
A new sample of X-ray selected narrow emission-line galaxies. II. Looking for True Seyfert 2
Watson, M. G.; Pons, E.
A sample of X-ray and optically selected narrow emission-line galaxies (769 sources) from the 3XMM catalogue cross-correlated with SDSS (DR9) catalogue has been studied. Narrow-emission line active galactic nuclei (AGN; type-2) have been selected on the basis of their emission line ratios and/or X-ray luminosity. We have looked for X-ray unobscure…
Radio Properties of Young Stellar Objects in the Core of the Serpens South Infrared Dark Cloud
Gutermuth, Robert A.; Tobin, John J.; Kern, Nicholas S. +2 more
We present deep radio continuum observations of the star-forming core of the Serpens South Infrared Dark Cloud with the Karl G. Jansky Very Large Array. Observations were conducted in two bands centered at 7.25 GHz (4.14 cm) and 4.75 GHz (6.31 cm) with a {σ }{rms} of 8.5 and 11.1 µJy/beam, respectively. We also use 2MASS, Spitzer …
Variations of the ISM Compactness Across the Main Sequence of Star Forming Galaxies: Observations and Simulations
Zezas, A.; Groves, B.; Ashby, M. L. N. +7 more
The majority of star-forming galaxies follow a simple empirical correlation in the star formation rate (SFR) versus stellar mass (M*) plane, of the form {{SFR}}\propto {M}*α , usually referred to as the star formation main sequence (MS). The physics that sets the properties of the MS is currently a subject of debat…
Suzaku X-ray observation of the GK Persei dwarf nova outburst in 2015
Ishida, Manabu; Hayashi, Takayuki; Yuasa, Takayuki
The intermediate polar GK Per exhibited a dwarf nova outburst in 2015 March-April. Suzaku X-ray telescope serendipitously captured the onset of the outburst during its pre-scheduled pointing observation spanning four days. In this paper, we present temporal and spectral analysis results of this outburst, together with those from archival data of q…
Constraining the properties of transitional discs in Chamaeleon I with Herschel
Pinte, C.; Duchêne, G.; Bouy, H. +4 more
Transitional discs are protoplanetary discs with opacity gaps/cavities in their dust distribution, a feature that may be linked to planet formation. We perform Bayesian modelling of the three transitional discs SZ Cha, CS Cha, and T25 including photometry from the Herschel Space Observatory to quantify the improvements added by these new data. We …
Comparison of lunar red spots including the crater copernicus
Ivanov, M.; Korokhin, V.; Kaydash, V. +4 more
The lunar red spots, Helmet, Hansteen Alpha, and the NW quadrant of the crater Copernicus, were selected for a complex comparative investigation of their characteristics measured by the spacecraft Clementine, LRO, and Chandrayaan-1. For the analysis we used the following parameters: the reflectance A(750 nm), color-ratio A(750 nm)/A(415 nm), param…
Unveiling the radio counterparts of two binary AGN candidates: J1108+0659 and J1131-0204
Bondi, M.; Piconcelli, E.; Pérez-Torres, M. A. +1 more
The sources SDSS J113126.08-020459.2 and SDSS J110851.04+065901.4 are two double-peaked [O III] emitting active galactic nuclei (AGNs), identified as candidate binary AGNs by optical and near infrared (NIR) observations. We observed the two sources with high resolution Very Long Baseline Interferometry (VLBI) using the European VLBI Network at 5 G…
Geomorphology of Lowell crater region on the Moon
Srivastava, N.; Varatharajan, I.
Surface topography, surface morphology and crater chronology studies have been carried out for the Lowell crater region (occupying ∼198 × 198 km2 in the northwestern quadrant of the Orientale basin) using Kaguya TC-DTM, LRO-WAC data, and Chandrayaan-1 M3-750 nm image, to characterize and date Lowell impact event and to identi…