The authors show that the surface structure of the primitive asteroid (65) Cybele is covered by a layer of fine anhydrous silicate grains, mixed with smaller...
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NewsCybele: detection of small silicate grains, water-ice, and organics.
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NewsDark Matter, Magnetic Fields, and the Rotation Curve of the Milky Way.
The study of the disk rotation curve of our Galaxy at large distances provides an interesting scenario for us to test whether magnetic fields should be...
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NewsDating stars with magnetic activity
Stellar ages are key to several fields of astrophysics such as exoplanet research, galactic-archeology, and of course stellar physics. Obtaining the ages of...
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NewsDeep spectroscopic luminosity function of Abell 85: no evidence for a steep upturn of the faint-end slope.
We present a new deep determination of the spectroscopic LF within the virial radius of the nearby and massive Abell 85 (A85) cluster down to the dwarf regime...
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NewsDetection of an extrasolar planet
A planet the size of Jupiter (TrES-1) has been detected from its transits around a star K0 V. (Data: M=0.75 ± 0.07 MJ R= 1.08 (+0.18,-0.04) RJ ). This is the...
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NewsDetection of anomalous microwave emission in the Perseus molecular cloud
An anomalous emission has been detected in the microwave region of the Perseus Molecular Cloud. This work extends the frequency range of the studies being...
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NewsDetection of companion stars of the pulsar X1822-371 and black hole candidate GX339-4
Ref 1: X1822-3711 | Ref 2: GX339-4 Detecting companion stars in these systems has been impossible until now. Thanks to a new technique developed at the IAC...
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NewsDetection of second-generation asymptotic giant branch stars in metal-poor globular clusters
Galactic globular clusters (GCs) are known to host multiple stellar populations: a first generation (FG) with a chemical pattern typical of halo field stars and...
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NewsDetection of the first R Coronae Borealis star pertaining to a binary system.
The stellar origin of the extremely hydrogen-deficient R Coronae Borealis (RCB) stars has remained a mystery for astronomers since their discovery more than two...