Alexandrine L’Heureux

GJ 4274 time series

Paul Charpentier, Moutou C, Donati J, P. Larue et autres

fr, gb, ca (code pays fourni par la source)

Radial velocity detection of the TRAPPIST-1 planetary system with SPIRou and NIRPS

Alexandrine L’Heureux

Results of the radial velocity (RV) modeling of the TRAPPIST-1 system using the near-infrared spectrographs SPIRou and NIRPS. The system is modeled with three components: Systematics model: fitting for residual telluric signal in the SPIRou time series. Two models are considered a …

ca (code pays fourni par la source)

Radial velocity detection of the TRAPPIST-1 planetary system with SPIRou and NIRPS

Alexandrine L’Heureux

Results of the radial velocity (RV) modeling of the TRAPPIST-1 system using the near-infrared spectrographs SPIRou and NIRPS. The system is modeled with three components: Systematics model: fitting for residual telluric signal in the SPIRou time series. Two models are considered a …

ca (code pays fourni par la source)

AU Mic SPIRou RV, Bl, Bs and DetlaT

J.‐F. Donati, Cristofari P.I, C. Moutou, Alexandrine L’Heureux et autres

fr, nl, ca, br, us, at, ie (code pays fourni par la source)

TOI-3288 b and TOI-4666 b: Two gas giants transiting low-mass stars characterised by NIRPS

Yolanda G. C. Frensch, François Bouchy, G. Lo Curto, Alexandrine L’Heureux et autres

Context . Gas giant planets orbiting low-mass stars ( T eff ≲ 4600 K) are uncommon outcomes of planet formation. Increasing the sample of well-characterised giants around early M dwarfs will enable population-level studies of their properties, offering valuable insights into their …

ch, cl, ca, br, pt, fr, es, us, au, be, jp, de (code pays fourni par la source)

NIRPS tightens the mass estimate of GJ 3090 b and detects a planet near the stellar rotation period

Pierrot Lamontagne, Drew Weisserman, Charles Cadieux, David Lafrenière et autres

We present an updated characterization of the planetary system orbiting the nearby M2 dwarf GJ 3090 (TOI-177; d=22 pc), based on new high-precision radial velocity (RV) observations from NIRPS and HARPS. With an orbital period of 2.85 d, the transiting sub-Neptune GJ …

Densities of small planets around the M dwarfs TOI-4336 A and TOI-4342 with ESPRESSO

Léna Parc, Charles Cadieux, Nolan Grieves, F. Bouchy et autres

Context . Characterizing the masses, radii, and compositions of small planets orbiting M dwarfs is key to understanding their formation and identifying the best targets for atmospheric follow-up with facilities such as JWST. Aims . We present the characterization of two planetary …

ch, ca, pt, es, cl, fr, us, br, au (code pays fourni par la source)

Densities of small planets around the M dwarfs TOI-4336~A and TOI-4342 with ESPRESSO: Three sub-Neptunes, one super-Earth, and a Neptune-mass candidate

Léna Parc, Charles Cadieux, Nolan Grieves, François Bouchy et autres

This dataset contains all the data that was used for the paper named "Densities of small planets around the M dwarfs TOI-4336~A and TOI-4342 with ESPRESSO: Three sub-Neptunes, one super-Earth, and a Neptune-mass candidate". It includes the time series of radial velocity …

ch (code pays fourni par la source)

Densities of small planets around the M dwarfs TOI-4336 A and TOI-4342 with ESPRESSO: Three sub-Neptunes, one super-Earth, and a Neptune-mass candidate

Léna Parc, Charles Cadieux, Nolan Grieves, François Bouchy et autres

We present the characterization of two planetary systems orbiting the M dwarfs TOI-4336 A (M3.5V) and TOI-4342 (M0V), each hosting two transiting planets previously validated with TESS and ground-based observations. We refined the photometry of the TOI-4342 system using TESS and LCOGT …

NIRPS tightens the mass estimate of GJ 3090 b and detects a planet near the stellar rotation period

Pierrot Lamontagne, Drew Weisserman, Charles Cadieux, David Lafrenière et autres

We present an updated characterization of the planetary system orbiting the nearby M2 dwarf GJ 3090 (TOI-177; $d = 22$ pc), based on new high-precision radial velocity (RV) observations from NIRPS and HARPS. With an orbital period of 2.85 d, the transiting …

NIRPS tightens the mass estimate of GJ 3090 b and detects a planet near the stellar rotation period

Pierrot Lamontagne, Drew Weisserman, Charles Cadieux, David Lafrenière et autres

We present an updated characterization of the planetary system orbiting the nearby M2 dwarf GJ 3090 (TOI-177; d =22 pc), based on new high-precision radial velocity (RV) observations from NIRPS and HARPS. With an orbital period of 2.85 d, the transiting sub-Neptune …

ca, ch, es, us, br, cz, fr, cl, de, pt, au, gb, jp (code pays fourni par la source)

Densities of small planets around the M dwarfs TOI-4336 A and TOI-4342 with ESPRESSO: Three sub-Neptunes, one super-Earth, and a Neptune-mass candidate

Léna Romane Elisa Parc, Charles Cadieux, Nolan Grieves, F. Bouchy et autres

Context . Characterizing the masses, radii, and compositions of small planets orbiting M dwarfs is key to understanding their formation and identifying the best targets for atmospheric follow-up with facilities such as JWST. Aims . We present the characterization of two planetary …

ch, ca, pt, es, cl, fr, us, cn (code pays fourni par la source)