Search Publications
Radioactive 26Al from the Scorpius-Centaurus association
Wang, W.; Diehl, R.; Jean, P. +7 more
Context. The Scorpius-Centaurus association is the most-nearby group of massive and young stars. As nuclear-fusion products are ejected by massive stars and supernovae into the surrounding interstellar medium, the search for characteristic γ-rays from radioactivity is one way to probe the history of activity of such nearby massive stars on a My ti…
Observations of a rotating macrospicule associated with an X-ray jet
Solanki, S. K.; Inhester, B.; Curdt, W. +2 more
Aims: We attempt to understand the driving mechanism of a macrospicule and its relationship with a coronal jet.
Methods: We study the dynamics of a macrospicule and an associated coronal jet captured by multi-spacecraft observations. Doppler velocities in both the macrospicule and the coronal jet are determined by EIS and SUMER spectra. …
Star formation and dust extinction properties of local galaxies from the AKARI-GALEX all-sky surveys . First results from the most secure multiband sample from the far-ultraviolet to the far-infrared
Buat, V.; Burgarella, D.; Takeuchi, T. T. +5 more
Aims: We explore spectral energy distributions (SEDs), star formation (SF), and dust extinction properties of galaxies in the Local Universe.
Methods: The AKARI all-sky survey provided the first bright point source catalog detected at 90 µm. Beginning with this catalog, we selected galaxies by matching the AKARI sources with those …
The baryonic content and Tully-Fisher relation at z ~ 0.6
Yang, Y.; Flores, H.; Hammer, F. +3 more
Context. Using the multi-integral-field spectrograph GIRAFFE at VLT, we previsouly derived the stellar-mass Tully-Fisher Relation (smTFR) at z ~ 0.6 for a representative sample of 63 emission-line galaxies. We found that the distant relation is systematically offset by roughly a factor of two toward lower masses from the local relation.
Aims:…
Transiting exoplanets from the CoRoT space mission. X. CoRoT-10b: a giant planet in a 13.24 day eccentric orbit
Mazeh, T.; Aigrain, S.; Alonso, R. +47 more
Context. The space telescope CoRoT searches for transiting extrasolar planets by continuously monitoring the optical flux of thousands of stars in several fields of view.
Aims: We report the discovery of CoRoT-10b, a giant planet on a highly eccentric orbit (e = 0.53 ± 0.04) revolving in 13.24 days around a faint (V = 15.22) metal-rich K1V st…
Transiting exoplanets from the CoRoT space mission. XIV. CoRoT-11b: a transiting massive ``hot-Jupiter'' in a prograde orbit around a rapidly rotating F-type star
Mazeh, T.; Aigrain, S.; Alonso, R. +52 more
The CoRoT exoplanet science team announces the discovery of CoRoT-11b, a fairly massive hot-Jupiter transiting a V = 12.9 mag F6 dwarf star (M_* = 1.27±0.05 M⊙, R_* = 1.37±0.03 R⊙, Teff = 6440±120 K), with an orbital period of P = 2.994329±0.000011 days and semi-major axis a = 0.0436±0.005 AU. The detection of part…
High-resolution imaging of Galactic massive stars with AstraLux. I. 138 fields with δ > - 25°
Maíz Apellániz, J.
Context. Massive stars have high-multiplicity fractions, and many of them have still undetected components, thus hampering the study of their properties.
Aims: I study a sample of massive stars with high angular resolution to better characterize their multiplicity.
Methods: I observed 138 fields that include at least one massive star wit…
SPIRE spectroscopy of the prototypical Orion Bar photodissociation region
Miville-Deschênes, M. -A.; Boulanger, F.; Abergel, A. +42 more
Aims: We present observations of the Orion Bar photodissociation region (PDR) obtained with the SPIRE instrument on-board Herschel.
Methods: We obtained SPIRE Fourier-transform spectrometer (FTS) sparse sampled maps of the Orion bar.
Results: The FTS wavelength coverage and sensitivity allow us to detect a wealth of rotational lines…
Nitrogen hydrides in interstellar gas. Herschel/HIFI observations towards G10.6-0.4 (W31C)
Perault, M.; Boulanger, F.; Falgarone, E. +49 more
The HIFI instrument on board the Herschel Space Observatory has been used to observe interstellar nitrogen hydrides along the sight-line towards G10.6-0.4 in order to improve our understanding of the interstellar chemistry of nitrogen. We report observations of absorption in NH N = 1 ≤ftarrow 0, J = 2 ≤ftarrow 1 and ortho-NH2 11,1<…
First results of Herschel-PACS observations of Neptune
Blommaert, J. A. D. L.; Lara, L. M.; Küppers, M. +51 more
We report on the initial analysis of a Herschel-PACS full range spectrum of Neptune, covering the 51-220 µm range with a mean resolving power of ~3000, and complemented by a dedicated observation of CH4 at 120 µm. Numerous spectral features due to HD (R(0) and R(1)), H2O, CH4, and CO are present, but so…