output
19932026
most citedThe Gaia mission

7.1k citations

Showing 2016 · astro-ph.EPShow all

27 papers · 2 filters

astro-ph.EP2016★ 27 cited

A super-Earth orbiting the nearby M-dwarf GJ 536

A. Suárez Mascareño, J. I. González Hernández, R. Rebolo +13

We report the discovery of a super-Earth orbiting the star GJ 536 based on the analysis of the radial-velocity time series from the HARPS and HARPS-N spectrographs. GJ 536 b is a p…

astro-ph.EP2016★ 49 cited

Transit Shapes and Self Organising Maps as a Tool for Ranking Planetary Candidates: Application to Kepler and K2

David J. Armstrong, Don Pollacco, Alexandre Santerne

A crucial step in planet hunting surveys is to select the best candidates for follow up observations, given limited telescope resources. This is often performed by human `eyeballin…

astro-ph.EP2016★ 10 cited

Spectroscopic characterisation of microlensing events Towards a new interpretation of OGLE-2011-BLG-0417

A. Santerne, J. -P. Beaulieu, B. Rojas Ayala +14

The microlensing event OGLE-2011-BLG-0417 is an exceptionally bright lens binary that was predicted to present radial velocity variation at the level of several km/s. Pioneer radia…

astro-ph.EP2016★ 108 cited

Kepler-21b: A rocky planet around a V = 8.25 magnitude star

Mercedes Lopez-Morales, Raphaelle D. Haywood, Jeffrey L. Coughlin +36

HD 179070, aka Kepler-21, is a V = 8.25 F6IV star and the brightest exoplanet host discovered by Kepler. An early detailed analysis by Howell et al. (2012) of the first thirteen mo…

astro-ph.EP2016★ 73 cited

HAT-P-65b and HAT-P-66b: Two Transiting Inflated Hot Jupiters and Observational Evidence for the Re-Inflation of Close-In Giant Planets

Joel D. Hartman, Gáspár Á. Bakos, Waqas Bhatti +25

We present the discovery of the transiting exoplanets HAT-P-65b and HAT-P-66b, with orbital periods of 2.6055 d and 2.9721 d, masses of M and $0.783 \pm 0.0…

astro-ph.EP2016★ 176 cited

Atmospheric characterization of Proxima b by coupling the Sphere high-contrast imager to the Espresso spectrograph

C. Lovis, I. Snellen, D. Mouillet +17

Context. The temperate Earth-mass planet Proxima b is the closest exoplanet to Earth and represents what may be our best ever opportunity to search for life outside the Solar Syste…

astro-ph.EP2016★ 90 cited

A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system

Lars A. Buchhave, Courtney D. Dressing, Xavier Dumusque +35

Kepler-20 is a solar-type star (V = 12.5) hosting a compact system of five transiting planets, all packed within the orbital distance of Mercury in our own Solar System. A transiti…

astro-ph.EP2016★ 17 cited

Disentangling planetary and stellar activity features in the CoRoT-2 light curve

G. Bruno, M. Deleuil, J. -M. Almenara +7

[Abridged] Context. Stellar activity is an important source of systematic errors and uncertainties in the characterization of exoplanets. Most of the techniques used to correct for…

astro-ph.EP2016★ 18 cited

Can stellar activity make a planet seem misaligned?

M. Oshagh, S. Dreizler, N. C. Santos +2

Several studies have shown that the occultation of stellar active regions by the transiting planet can generate anomalies in the high-precision transit light curves, and these anom…

astro-ph.EP2016★ 26 cited

Discovery of WASP-113b and WASP-114b, two inflated hot-Jupiters with contrasting densities

S. C. C. Barros, D. J. A. Brown, G. Hébrard +37

We present the discovery and characterisation of the exoplanets WASP-113b and WASP-114b by the WASP survey, {\it SOPHIE} and {\it CORALIE}. The planetary nature of the systems was…

astro-ph.EP2016★ 104 cited

New planetary and EB candidates from Campaigns 1-6 of the K2 mission

S. C. C. Barros, O. Demangeon, M. Deleuil

With only two functional reaction wheels, Kepler cannot maintain stable pointing at its original target field and entered a new mode of observation called K2. Our method is based o…

astro-ph.EP2016★ 79 cited

From dense hot Jupiter to low-density Neptune: The discovery of WASP-127b, WASP-136b and WASP-138b

K. W. F. Lam, F. Faedi, D. J. A. Brown +38

We report three newly discovered exoplanets from the SuperWASP survey. WASP-127b is a heavily inflated super-Neptune of mass 0.18 +/- 0.02 M_J and radius 1.37 +/- 0.04 R_J. This is…

astro-ph.EP2016★ 18 cited

Is the activity level of HD 80606 influenced by its eccentric planet?

P. Figueira, A. Santerne, A. Suárez Mascareño +14

Aims: Several studies suggest that the activity level of a planet-host star can be influenced by the presence of a close-by orbiting planet. Moreover, the interaction mechanisms th…

astro-ph.EP2016★ 54 cited

EPIC201702477b: A Long Period Transiting Brown Dwarf from K2

D. Bayliss, S. Hojjatpanah, A. Santerne +34

We report the discovery of EPIC201702477b, a transiting brown dwarf in a long period (40.73691 +/- 0.00037 day) and eccentric (e=0.2281 +/- 0.0026) orbit. This system was initially…

astro-ph.EP2016★ 21 cited

An extreme planetary system around HD219828. One long-period super Jupiter to a hot-neptune host star

N. C. Santos, A. Santerne, J. P. Faria +19

With about 2000 extrasolar planets confirmed, the results show that planetary systems have a whole range of unexpected properties. We present a full investigation of the HD219828 s…

astro-ph.EP2016★ 26 cited

K2-110 b - a massive mini-Neptune exoplanet

H. P. Osborn, A. Santerne, S. C. C. Barros +33

We report the discovery of the exoplanet K2-110 b (previously EPIC212521166b) from K2 photometry orbiting in a 13.8637d period around an old, metal-poor K3 dwarf star. With a V-ban…

astro-ph.EP2016★ 30 cited

The SOPHIE search for northern extrasolar planets. XI. Three new companions and an orbit update: Giant planets in the habitable zone

R. F. Díaz, J. Rey, O. Demangeon +25

We report the discovery of three new substellar companions to solar-type stars, HD191806, HD214823, and HD221585, based on radial velocity measurements obtained at the Haute-Proven…

astro-ph.EP2016★ 2 cited

Reflected light from giant planets in habitable zones: Tapping into the power of the Cross-Correlation Function

Jorge H. C. Martins, Nuno C. Santos, Pedro Figueira +1

The direct detection of reflected light from exoplanets is an excellent probe for the characterization of their atmospheres. The greatest challenge for this task is the low planet-…

astro-ph.EP2016★ 35 cited

Prediction of transits of solar system objects in Kepler/K2 images: An extension of the Virtual Observatory service SkyBoT

J. Berthier, B. Carry, F. Vachier +2

All the fields of the extended space mission Kepler/K2 are located within the ecliptic. Many solar system objects thus cross the K2 stellar masks on a regular basis. We aim at prov…

astro-ph.EP2016★ 37 cited

The SOPHIE search for northern extrasolar planets. X. Detection and characterization of giant planets by the dozen

G. Hebrard, L. Arnold, T. Forveille +33

We present new radial velocity measurements of eight stars secured with the spectrograph SOPHIE at the 193-cm telescope of the Haute-Provence Observatory allowing the detection and…

astro-ph.EP2016★ 50 cited

The SOPHIE search for northern extrasolar planets IX. Populating the brown dwarf desert

P. A. Wilson, G. Hébrard, N. C. Santos +20

Radial velocity planet search surveys of nearby Solar-type stars have shown a strong deficit of brown dwarf companions within . There is presently no comprehens…

astro-ph.EP2016★ 106 cited

Uncovering the planets and stellar activity of CoRoT-7 using only radial velocities

J. P. Faria, R. D. Haywood, B. J. Brewer +4

Stellar activity can induce signals in the radial velocities of stars, complicating the detection of orbiting low-mass planets. We present a method to determine the number of plane…

astro-ph.EP2016★ 32 cited

EPIC211089792 b: an aligned and inflated hot jupiter in a young visual binary

A. Santerne, G. Hébrard, J. Lillo-Box +71

In the present paper we report the discovery of a new hot Jupiter, EPIC211089792 b, first detected by the Super-WASP observatory and then by the K2 space mission during its campaig…

astro-ph.EP2016★ 14 cited

The HARPS search for southern extra-solar planets XL. Searching for Neptunes around metal-poor stars

J. P. Faria, N. C. Santos, P. Figueira +14

Stellar metallicity -- as a probe of the metallicity of proto-planetary disks -- is an important ingredient for giant planet formation, likely through its effect on the timescales…