Observatoire de Paris

<i>Planck</i>2015 results

We present results based on full-mission Planck observations of temperature and polarization anisotropies of the CMB. These data are consistent with the six-parameter inflationa...

<i>Gaia</i> Data Release 2

Context. We present the second Gaia data release, Gaia DR2, consisting of astrometry, photometry, radial velocities, and information on astrophysical parameters and variability,...

<i>Gaia</i>Early Data Release 3

Context. We present the early installment of the third Gaia data release, Gaia EDR3, consisting of astrometry and photometry for 1.8 billion sources brighter than magnitude 21, ...

Gravitational-Radiation Damping of Compact Binary Systems to Second Post-Newtonian Order

The rate of gravitational-wave energy loss from inspiralling binary systems of compact objects of arbitrary mass is derived through second post-Newtonian (2PN) order $O[(Gm/rc^2...

Measurement of stellar age from uranium decay

Theoretical potential energy function and rovibronic spectrum of CO+2(<i>X</i> 2Π<i>g</i>)

For the electronic ground state of CO+2 the three-dimensional potential energy, electric dipole, and transition moment functions have been calculated from highly correlated mult...

Self-broadening of the hydrogen Balmer<i>α</i>line

International audience