1k citations
- Centre National de la Recherche ScientifiqueFR333 papers
- Université Paris CitéFR297 papers
- Observatoire de ParisFR281 papers
- Laboratoire d’études spatiales et d’instrumentation en astrophysiqueFR233 papers
- Sorbonne UniversitéFR210 papers
- Laboratoire Univers et ThéoriesFR185 papers
- Université Paris Sciences et LettresFR117 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR116 papers
- Laboratoire d’Astrophysique de MarseilleFR111 papers
- CEA Paris-SaclayFR107 papers
- Délégation Paris 7FR106 papers
- Institut d'Astrophysique de ParisFR97 papers
7 papers · 2 filters
Stability of the interstellar hydrogen inflow longitude from 20 years of SOHO/SWAN observations
Dimitra Koutroumpa, Eric Quémerais, Olga Katushkina +3
Aims. A recent debate on the decade-long stability of the interstellar He flow vector, and in particular the flow longitude, has prompted us to check for any variability in the int…
A LOFAR detection of the low mass young star T Tau at 149 MHz
Colm P. Coughlan, Rachael E. Ainsworth, Jochen Eislöffel +15
Radio observations of young stellar objects (YSOs) enable the study of ionised plasma outflows from young protostars via their free-free radiation. Previous studies of the low-mass…
Proxima's orbit around Alpha Centauri
P. Kervella, F. Thévenin, C. Lovis
Proxima and Alpha Centauri AB have almost identical distances and proper motions with respect to the Sun. Although the probability of such similar parameters is in principle very l…
The radii and limb darkenings of Alpha Centauri A and B - Interferometric measurements with VLTI/PIONIER
P. Kervella, L. Bigot, A. Gallenne +1
The photospheric radius is one of the fundamental parameters governing the radiative equilibrium of a star. We report new observations of the nearest solar-type stars Alpha Centaur…
Close stellar conjunctions of alpha Centauri A and B until 2050 - An mK = 7.8 star may enter the Einstein ring of alpha Cen A in 2028
P. Kervella, F. Mignard, A. Mérand +1
The rapid proper motion of the alpha Cen pair (3.7 arcsec/yr) and its location close to the galactic plane on a rich stellar background combine to make them excellent candidates fo…
A model for straight and helical solar jets: II. Parametric study of the plasma beta
E. Pariat, K. Dalmasse, C. R. DeVore +2
Jets are dynamic, impulsive, well-collimated plasma events that develop at many different scales and in different layers of the solar atmosphere. Jets are believed to be induced by…