activity
20172026
most citedA remnant planetary core in the hot-Neptune desert

123 citations · 1.3k across the 45 of their papers we have counts for

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Showing 2018Show all

6 papers · 1 filter

astro-ph.SR2018★ 47 cited

Detection of a giant flare displaying quasi-periodic pulsations from a pre-main sequence M star with NGTS

James A. G. Jackman, Peter J. Wheatley, Chloe E. Pugh +18

We present the detection of an energetic flare on the pre-main sequence M3 star NGTS J121939.5-355557, which we estimate as only 2 Myr old. The flare had an energy of $3.2\pm^{0.4}…

astro-ph.EP2018★ 24 cited

K2-265 b: A Transiting Rocky Super-Earth

K. W. F. Lam, A. Santerne, S. G. Sousa +34

We report the discovery of the super-Earth K2-265 b detected with K2 photometry. The planet orbits a bright (V_mag = 11.1) star of spectral type G8V with a period of 2.37 days. We…

astro-ph.EP2018★ 84 cited

NGTS-4b: A sub-Neptune Transiting in the Desert

Richard G. West, Edward Gillen, Daniel Bayliss +48

We report the discovery of NGTS-4b, a sub-Neptune-sized planet transiting a 13th magnitude K-dwarf in a 1.34d orbit. NGTS-4b has a mass M=M_E and radius R=…

astro-ph.SR2018★ 17 cited

A low-mass eclipsing binary within the fully convective zone from the NGTS

S. L. Casewell, L. Raynard, C. A. Watson +22

We have discovered a new, near-equal mass, eclipsing M dwarf binary from the Next Generation Transit Survey. This system is only one of 3 field age ( 1 Gyr), late M dwarf eclips…

astro-ph.EP2018★ 112 cited

An Earth-sized exoplanet with a Mercury-like composition

A. Santerne, B. Brugger, D. J. Armstrong +43

The Earth, Venus, Mars, and some extrasolar terrestrial planets have a mass and radius that is consistent with a mass fraction of about 30% metallic core and 70% silicate mantle. A…

astro-ph.SR2018★ 31 cited

Ground-based detection of G star superflares with NGTS

James A. G. Jackman, Peter J. Wheatley, Chloe E. Pugh +19

We present high cadence detections of two superflares from a bright G8 star (V = 11.56) with the Next Generation Transit Survey (NGTS). We improve upon previous superflare detectio…