Our recent detection of compact radio emission at the position of the ultraluminous X-ray source (ULX) IC 342 X-1 suggests the presence of an outflow in this object. This new finding combined with the fact that this source is mostly seen with a hard X-ray spectrum allows us to identify the source as in the `hard' state similar to that seen from
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It also provides access to IAC Preprints Repository here: https://research.iac.es/preprints/
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A deep observation of the ultraluminous X-ray source IC 342 X-1Grise, Fabien102010
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A determination of the space density and birth rate of hydrogen-line (DA) white dwarfs in the Galactic plane, based on the UVEX survey
We present a determination of the average space density and birth rate of hydrogen-line (DA) white dwarfs within a radius of 1 kpc around the Sun, based on an observational sample of 360 candidate white dwarfs with g < 19.5 and (g - r) < 0.4, selected from the UV-Excess (UVEX) survey of the northern Galactic plane, in combination with a theoretical
Verbeek, K. et al.Advertised on:
102013 -
A double stellar generation in the globular cluster NGC 6656 (M 22). Two stellar groups with different iron and s-process element abundances
We present a chemical abundance analysis based on high resolution UVES spectra of seventeen bright giant stars in the Globular Cluster (GC) M 22. We obtained an average iron abundance of [Fe/H] = -1.76±0.02 (internal errors only) and an α enhancement of 0.36±0.04 (internal errors only). Na and O, and Al and O follow the well known anticorrelations
Marino, A. F. et al.Advertised on:
102009 -
A dynamical study of the circumstellar gas in UX Orionis
We present the results of a high spectral resolution (lambda / Delta lambda = 49 000) study of the circumstellar (CS) gas around the intermediate mass, pre-main sequence star UX Ori. The results are based on a set of 10 échelle spectra covering the spectral range 3800-5900 Å, monitoring the star on time scales of months, days and hours. A large
Mora, A. et al.Advertised on:
102002 -
A Forth-and-Back Implicit Lambda -Iteration
In many radiative transfer (RT) problems, the sources contain a scattering term that couples all the specific RT equations, one for each frequency and direction, so that solving the problem means solving the system formed by these equations. Each of them is a first-order linear differential equation with its own initial condition assigned at a
Atanackovic-Vukmanovic, O. et al.Advertised on:
101997 -
A fundamental plane for field star-forming galaxies
Context. Star formation rate (SFR), metallicity, and stellar mass are among the most important parameters of star-forming (SF) galaxies characterizing their formation and evolution. They are known to be related to each other both at low and high redshift in the mass-metallicity, mass-SFR, and metallicity-SFR relations. Aims: We demonstrate the
Lara-López, M. A. et al.Advertised on:
102010