216 citations · 797 across the 33 of their papers we have counts for
35 papers
Search for Compact Binary Coalescences with Sub-solar Mass Components in Data from the Second Part of LIGO-Virgo-KAGRA's Fourth Observing Run
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1816
We report on a gravitational wave search for compact binary coalescences with secondary mass between 0.2 M and 1 M and primary mass between 0.2 M and 10 M, restricting the componen…
PYRA and MYTHRA: new statistical analysis for image reconstruction
Julien Drevon, Margaux Abello, Florentin Millour +2
Image reconstruction in optical interferometry remains a challenging inverse problem due to sparse Fourier sampling and the strong dependence of the reconstructed images on user-de…
Interferometric Survey of Stellar Parameters: Mass of the metallic A-type binary Aur
J. Jonák, D. Mourard, J. D. Monnier +23
With the capabilities of the new visible CHARA/SPICA instrument and the multiple spectral band operation of CHARA, our goal is to resolve orbits of short-period binaries and develo…
Interferometric Survey of Stellar Parameters: Towards homogeneous FGK stars parameters and surface-brightness color relation in the context of PLATO space mission
Romina V. Ibañez Bustos, Denis Mourard, Nicolas Nardetto +20
The estimation of stellar angular diameters can be performed from the surface brightness - color relation (SBCR) and photometry. The SBCR have been considered by the PLATO space mi…
Black Hole Spectroscopy and Tests of General Relativity with GW250114
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration
The binary black hole signal GW250114, the loudest gravitational wave detected to date, offers a unique opportunity to test Einstein's general relativity (GR) in the high-velocity,…
GW230814: investigation of a loud gravitational-wave signal observed with a single detector
The LIGO Scientific Collaboration, The Virgo Collaboration, The Kagra Collaboration +1783
GW230814, detected by the LIGO Livingston observatory with a signal-to-noise ratio of 42.4, represents the loudest gravitational-wave signal in the GWTC-4.0 catalog. Its source is…
The discovery space of ELT-ANDES. Stars and stellar populations
Ian U. Roederer, Julián D. Alvarado-Gómez, Carlos Allende Prieto +31
The ArmazoNes high Dispersion Echelle Spectrograph (ANDES) is the optical and near-infrared high-resolution echelle spectrograph envisioned for the European Extremely Large Telesco…
Bayesian sampling with BeAtlas, a grid of synthetic Be star spectra I. Recovering the fundamental parameters of αEri and βCMi
A. C. Rubio, A. C. Carciofi, P. Ticiani +14
Classical Be stars are fast rotating, near main sequence B-type stars. The rotation and the presence of circumstellar discs profoundly modify the observables of active Be stars. Ou…
Spectroscopic detection of Altair's non-radial pulsations
M. Rieutord, P. Petit, D. Reese +4
Context: Rapid rotation is a common feature of early-type stars but which remains a challenge for the models. The understanding of its effect on stellar evolution is however impera…
The binary system of the spinning-top Be star Achernar
P. Kervella, S. Borgniet, A. Domiciano de Souza +16
Achernar, the closest and brightest classical Be star, presents rotational flattening, gravity darkening, occasional emission lines due to a gaseous disk, and an extended polar win…
Combined spectroscopy and intensity interferometry to determine the distances of the blue supergiants P Cygni and Rigel
E. S. G. de Almeida, Mathilde Hugbart, Armando Domiciano de Souza +10
In this paper we report on spatial intensity interferometry measurements within the H line on two stars: the Luminous Blue Variable supergiant \PCygni\,and the late-type B super…
The extended atmosphere and circumstellar environment of the cool evolved star VX Sagittarii as seen by MATISSE
A. Chiavassa, K. Kravchenko, M. Montargès +50
Context. VX Sgr is a cool, evolved, and luminous red star whose stellar parameters are difficult to determine, which affects its classification. Aims. We aim to spatially resolve t…
VLTI-MATISSE L- and N-band aperture-synthesis imaging of the unclassified B[e] star FS Canis Majoris
K. -H. Hofmann, A. Bensberg, D. Schertl +58
Context: FS Canis Majoris (FS CMa, HD 45677) is an unclassified B[e] star surrounded by an inclined dust disk. The evolutionary stage of FS CMa is still debated. Perpendicular to t…
Refined fundamental parameters of Canopus from combined near-IR interferometry and spectral energy distribution
A. Domiciano de Souza, J. Zorec, F. Millour +3
Canopus, the brightest and closest yellow supergiant to our Solar System, offers a unique laboratory for understanding the physics of evolved massive stars. The accurate and precis…
Intensity interferometry of P Cygni in the H emission line: towards distance calibration of LBV supergiant stars
J. -P. Rivet, A. Siciak, E. S. G. de Almeida +7
We present intensity interferometry of the luminous blue variable P Cyg in the light of its H emission performed with 1\,m-class telescopes. We compare the measured visibility p…
Prevalence of SED turndown among classical Be stars: Are all Be stars close binaries?
Robert Klement, A. C. Carciofi, T. Rivinius +16
Rapid rotation is a fundamental characteristic of classical Be stars and a crucial property allowing for the formation of their circumstellar disks. Past evolution in a mass and an…
Classical and general relativistic post-Keplerian effects in binary pulsars hosting fast rotating main sequence stars
Lorenzo Iorio, Michel Rieutord, Jean-Pierre Rozelot +1
We consider a binary system composed of a pulsar and a massive, fast rotating, highly distorted main sequence star as a potential scenario to dynamically put to the test certain po…
The evolved fast rotator Sargas. Stellar parameters and evolutionary status from VLTI/PIONIER and VLT/UVES
Armando Domiciano de Souza, Kévin Bouchaud, Michel Rieutord +2
Gravity darkening (GD) and flattening are important consequences of stellar rotation. The precise characterization of these effects across the HRD is crucial to a deeper understand…
Gravity darkening in stars with surface differential rotation
J. Zorec, M. Rieutord, F. Espinosa Lara +3
The interpretation of stellar apparent fundamental parameters must be treated consistently with the characteristics of their surface rotation law. We develop a model to determine t…
VLTI/PIONIER images the Achernar disk swell
G. Dalla Vedova, F. Millour, A. Domiciano de Souza +5
Context. The mechanism of disk formation around fast-rotating Be stars is not well understood. In particular, it is not clear which mechanisms operate, in addition to fast rotation…
Critical study of the distribution of rotational velocities of Be stars; II: Differential rotation and some hidden effects interfering with the interpretation of the Vsin i parameter
J. Zorec, Y. Frémat, A. Domiciano de Souza +9
We assume that stars may undergo surface differential rotation to study its impact on the interpretation of and on the observed distribution of ratios of true ro…
Grown-up stars physics with MATISSE
Florentin Millour, J Hron, A Chiavassa +20
MATISSE represents a great opportunity to image the environment around massive and evolved stars. This will allow one to put constraints on the circumstellar structure, on the mass…
Capabilities of future intensity interferometers for observing fast-rotating stars: imaging with two- and three-telescope correlations
Paul D. Nunez, Armando Domiciano de Souza
Future large arrays of telescopes, used as intensity interferometers, can be used to image the surfaces of stars with unprecedented angular resolution. Fast-rotating, hot stars are…
Differential interferometric phases at high spectral resolution as a sensitive physical diagnostic of circumstellar disks
D. M. Faes, A. C. Carciofi, Th. Rivinius +3
Context. The circumstellar disks ejected by many rapidly rotating B stars (so-called Be stars) offer the rare opportunity of studying the structure and dynamics of gaseous disks at…