activity
20162022
most citedNew Planetary Systems from the Calan-Hertfordshire Extrasolar Planet Search

65 citations · 338 across the 15 of their papers we have counts for

collaborators

15 papers

astro-ph.SR2022★ 16 cited

A HARPS radial velocity search for planets in the Scorpius-Centaurus association. And its combination with the HARPS and SOPHIE young nearby stars (YNS) surveys

Antoine Grandjean, A. -M. Lagrange, N. Meunier +13

The Scorpius-Centaurus (Sco-Cen) young and nearby massive star-forming region is particularly well suited for extrasolar planet searches with both direct imaging and radial velocit…

astro-ph.EP2021

A SOPHIE RV search for giant planets around young nearby stars (YNS). A combination with the HARPS YNS survey

A. Grandjean, A. -M. Lagrange, N. Meunier +9

The search of close (a<=5 au) giant planet(GP) companions with radial velocity(RV) around young stars and the estimate of their occurrence rates is important to constrain the migra…

astro-ph.SR2021★ 6 cited

A Novel Survey for Young Substellar Objects with the W-band filter III: Searching for very low mass brown dwarfs in Serpens South and Serpens Core

Sophie Dubber, Beth Biller, Katelyn Allers +10

We present CFHT photometry and IRTF spectroscopy of low-mass candidate members of Serpens South and Serpens Core (430 pc, 0.5 Myr), identified using a novel combination…

astro-ph.EP2021★ 55 cited

A search for a 5th planet around HR 8799 using the star-hopping RDI technique at VLT/SPHERE

Z. Wahhaj, J. Milli, C. Romero +8

The direct imaging of extrasolar giant planets demands the highest possible contrasts (dH ~10 magnitudes) at the smallest angular separations (~0.1'') from the star. We present an…

astro-ph.SR2020★ 20 cited

A wide planetary-mass companion to a young low-mass brown dwarf in Ophiuchus

Clemence Fontanive, Katelyn N. Allers, Blake Pantoja +6

We present the discovery of a planetary-mass companion to CFHTWIR-Oph 98, a low-mass brown dwarf member of the young Ophiuchus star-forming region, with a wide 200-au separation (1…

astro-ph.EP2019★ 36 cited

A HARPS RV search for planets around young nearby stars

A. Grandjean, A. -M. Lagrange, M. Keppler +9

Young nearby stars are good candidates in the search for planets with both radial velocity (RV) and direct imaging techniques. This, in turn, allows for the computation of the gian…

astro-ph.EP2019★ 8 cited

An unusually large gaseous transit in a debris disc

Daniela P. Iglesias, Johan Olofsson, Amelia Bayo +9

We present the detection of an unusually large transient gas absorption in several ionized species in the debris disc star HD 37306 using high-resolution optical spectra. We have b…

astro-ph.EP2018★ 19 cited

K2-287b: an Eccentric Warm Saturn transiting a G-dwarf

Andrés Jordán, Rafael Brahm, Néstor Espinoza +23

We report the discovery of K2-287b, a Saturn mass planet orbiting a G-dwarf with a period of days. First uncovered as a candidate using K2 campaign 15 data, follow-u…

astro-ph.SR2018★ 4 cited

SAFARI I: A SPHERE discovery of a super metal-rich M dwarf companion to the star HD 86006

B. M. Pantoja, J. S. Jenkins, J. H. Girard +3

We report the direct detection of a fully convective, early-to-mid M-dwarf companion orbiting the star HD 86006, using ESO-SPHERE during Science Verification as part of the SAFARI…

astro-ph.EP2018★ 20 cited

EPIC 201498078b: A low density Super Neptune on an eccentric orbit

Rafael Brahm, Nestor Espinoza, Markus Rabus +15

We report the discovery of EPIC 201498078b, which was first identified as a planetary candidate from Kepler K2 photometry of Campaign 14, and whose planetary nature and orbital par…

astro-ph.EP2018★ 18 cited

EPIC229426032 b and EPIC246067459 b: discovery and characterization of two new transiting hot Jupiters from K2

M. G. Soto, M. R. Díaz, J. S. Jenkins +17

We report the discovery of two hot Jupiters orbiting the stars EPIC229426032 and EPIC246067459. We used photometric data from Campaign 11 and 12 of the Kepler K2 Mission and radial…

astro-ph.EP2017★ 21 cited

EPIC 228735255b - An eccentric 6.57 day transiting hot Jupiter in Virgo

H. A. C. Giles, D. Bayliss, N. Espinoza +25

We present the discovery of EPIC 228735255b, a P= 6.57 days Jupiter-mass (M=1.0190.070 M) planet transiting a V=12.5 (G5-spectral type) star in an eccentric orbit…

astro-ph.EP2016★ 65 cited

New Planetary Systems from the Calan-Hertfordshire Extrasolar Planet Search

J. S. Jenkins, H. R. A. Jones, M. Tuomi +22

We report the discovery of eight new giant planets, and updated orbits for four known planets, orbiting dwarf and subgiant stars using the CORALIE, HARPS, and MIKE instruments as p…

astro-ph.EP2016★ 16 cited

An independent discovery of two hot Jupiters from the K2 mission

Rafael Brahm, Matías Jones, Néstor Espinoza +9

We report the discovery of two hot Jupiters using photometry from Campaigns 4 and 5 of the two-wheeled Kepler (K2) mission. K2-30b has a mass of , a radius of $…

astro-ph.EP2016★ 34 cited

Discovery and Validation of a High-Density sub-Neptune from the K2 Mission

Néstor Espinoza, Rafael Brahm, Andrés Jordán +12

We report the discovery of BD+20594b, a high density sub-Neptune exoplanet, made using photometry from Campaign 4 of the two-wheeled Kepler (K2) mission, ground-based radial veloci…