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- Publications
- Influence
The angular sizes of dwarf stars and subgiants Surface brightness relations calibrated by interferometry
- P. Kervella, F. Th'evenin, E. D. Folco, D. S'egransan
- Physics
- 8 April 2004
The availability of a number of new interferometric measurements of Main Sequence and subgiant stars makes it possible to calibrate the surface brightness relations of these stars using exclusively… Expand
A New Calibration Of Galactic Cepheid Period-Luminosity Relations From B To K Bands, And A Comparison To LMC Relations
- P. Fouqu'e, P. Arriagada, +8 authors B. Mcarthur
- Physics
- 20 September 2007
Context. The universality of the Cepheid Period-Luminosity relations has been under discussion since metallicity effects have been assumed to play a role in the value of the intercept and, more… Expand
First radius measurements of very low mass stars with the VLTI
- D. S'egransan, P. Kervella, T. Forveille, D. Queloz
- Physics
- 29 November 2002
We present 4 very low mass stars radii measured with the VLTI using the 2.2m VINCI test instrument. The observations were carried out during the commissioning of the 104-meter-baseline with two… Expand
A distance to the Large Magellanic Cloud that is precise to one per cent
- G. Pietrzyński, D. Graczyk, +19 authors W. Narloch
- Physics, Medicine
- Nature
- 1 March 2019
In the era of precision cosmology, it is essential to determine the Hubble constant empirically with an accuracy of one per cent or better1. At present, the uncertainty on this constant is dominated… Expand
Mass-radius relation of low and very low-mass stars revisited with the VLTI
- B.-O. Demory, D. S'egransan, +7 authors C. Perrier
- Physics
- 2 June 2009
We measured the radii of 7 low and very low-mass stars using long baseline interferometry with the VLTI interferometer and its VINCI and AMBER near-infrared recombiners. We use these new data,… Expand
The diameters of $\alpha$ Centauri A and B - A comparison of the asteroseismic and VINCI/VLTI views
- P. Kervella, F. Th'evenin, +4 authors J. Provost
- Physics
- 28 March 2003
We compare the first direct angular diameter measurements obtained on our closest stellar neighbour, Centauri, to recent model diameters constrained by asteroseismic observations. Using the VINCI… Expand
A geometric distance measurement to the Galactic Center black hole with 0.3% uncertainty
We present a 0.16% precise and 0.27% accurate determination of R0, the distance to the Galactic Center. Our measurement uses the star S2 on its 16-year orbit around the massive black hole Sgr A* that… Expand
Cepheid distances from infrared long-baseline interferometry III. Calibration of the surface brightness-color relations
- P. Kervella, D. Bersier, D. Mourard, N. Nardetto, P. Fouqu'e, V. C. D. Foresto
- Physics
- 1 December 2004
The recent VINCI/VLTI observations presented in Paper I have nearly doubled the total number of available angular diameter measurements of Cepheids. Taking advantage of the significantly larger color… Expand
Circumstellar material in the Vega inner system revealed by CHARA/FLUOR
- O. Absil, E. D. Folco, +11 authors H. Mcalister
- Physics
- 12 April 2006
Context. Only a handful of debris disks have been imaged up to now. Due to the need for high dynamic range and high angular resolution, very little is known about the inner planetary region, where… Expand
First Results from the CHARA Array. VII. Long-Baseline Interferometric Measurements of Vega Consistent with a Pole-On, Rapidly Rotating Star
- J. Aufdenberg, A. M'erand, +10 authors N. Turner
- Physics
- 13 March 2006
We have obtained high-precision interferometric measurements of Vega with the CHARA Array and FLUOR beam combiner in the K’ band at projected baselines between 103m and 273m. The measured visibility… Expand