activity
20132026
most citedPathway to the Galactic Distribution of Planets: Combined Spitzer and Ground-Based Microlens Parallax Measurements of 21 Single-Lens Events

129 citations · 321 across the 12 of their papers we have counts for

collaborators

13 papers

astro-ph.EP2026

OGLE-2015-BLG-1395Lb: A Cold Sub-Saturn Mass Planet Orbiting an M Dwarf

Andrew A. Cole, Joshua W. Blackman, Jean-Philippe Beaulieu +75

We present an analysis of the high-magnification microlensing event OGLE-2015-BLG-1395 and report the discovery of a sub-Saturn mass companion to the lens. Photometric coverage of…

astro-ph.SR2026★ 1 cited

Gaia20fnr: A binary-lens microlensing event with full orbital motion revealed by four space telescopes

M. Wicker, Ł. Wyrzykowski, M. Hundertmark +49

The microlensing event Gaia20fnr is a long-duration, non-caustic-crossing binary-lens event at high Galactic latitude. Triggered by a photometric rise detected by the Gaia space mi…

astro-ph.EP2025★ 1 cited

A search for transit timing variations in the transiting hot Jupiter systems HIP 65, NGTS-6, NGTS-10 and WASP-173

A. W. Griffiths, J. Southworth, L. Alegre +30

Hot Jupiters are Jupiter-mass planets with orbital periods of less than ten days. Their short orbital separations make tidal dissipation within the stellar host especially efficien…

astro-ph.EP2024★ 2 cited

OGLE-2015-BLG-1609Lb: Sub-jovian planet orbiting a low-mass stellar or brown dwarf host

M. J. Mróz, R. Poleski, A. Udalski +70

We present a comprehensive analysis of a planetary microlensing event OGLE-2015-BLG-1609. The planetary anomaly was detected by two survey telescopes, OGLE and MOA. Each of these s…

astro-ph.SR2024★ 1 cited

Digging deeper into the dense Galactic globular cluster Terzan 5 with Electron-Multiplying CCDs. Variable star detection and new discoveries

R. Figuera Jaimes, M. Catelan, K. Horne +20

Context. High frame-rate imaging was employed to mitigate the effects of atmospheric turbulence (seeing) in observations of globular cluster Terzan 5. Aims. High-precision time-ser…

astro-ph.EP2024

A close binary lens revealed by the microlensing event Gaia20bof

E. Bachelet, P. Rota, V. Bozza +24

During the last 25 years, hundreds of binary stars and planets have been discovered towards the Galactic Bulge by microlensing surveys. Thanks to a new generation of large-sky surv…

astro-ph.EP2017★ 27 cited

High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). II. Lucky Imaging results from 2015 and 2016

D. F. Evans, J. Southworth, B. Smalley +33

The formation and dynamical history of hot Jupiters is currently debated, with wide stellar binaries having been suggested as a potential formation pathway. Additionally, contamina…

astro-ph.GA2016★ 15 cited

MiNDSTEp differential photometry of the gravitationally lensed quasars WFI2033-4723 and HE0047-1756: Microlensing and a new time delay

E. Giannini, R. W. Schmidt, J. Wambsganß +52

We present V and R photometry of the gravitationally lensed quasars WFI2033-4723 and HE0047-1756. The data were taken by the MiNDSTEp collaboration with the 1.54 m Danish telescope…

astro-ph.EP2016★ 66 cited

Orbital alignment and starspot properties in the WASP-52 planetary system

L. Mancini, J. Southworth, G. Raia +27

We report 13 high-precision light curves of eight transits of the exoplanet WASP-52b, obtained by using four medium-class telescopes, through different filters, and adopting the de…

astro-ph.SR2015

Exploring the crowded central region of 10 Galactic globular clusters using EMCCDs. Variable star searches and new discoveries

R. Figuera Jaimes, D. M. Bramich, J. Skottfelt +31

Obtain time-series photometry of the very crowded central regions of Galactic globular clusters with better angular resolution than previously achieved with conventional CCDs on gr…

astro-ph.EP2014★ 61 cited

High-precision photometry by telescope defocussing. VII. The ultra-short period planet WASP-103

John Southworth, L. Mancini, S. Ciceri +25

We present 17 transit light curves of the ultra-short period planetary system WASP-103, a strong candidate for the detection of tidally-induced orbital decay. We use these to estab…

astro-ph.EP2014★ 129 cited

Pathway to the Galactic Distribution of Planets: Combined Spitzer and Ground-Based Microlens Parallax Measurements of 21 Single-Lens Events

S. Calchi Novati, A. Gould, A. Udalski +82

We present microlens parallax measurements for 21 (apparently) isolated lenses observed toward the Galactic bulge that were imaged simultaneously from Earth and Spitzer, which was…

astro-ph.SR2013★ 18 cited

EMCCD photometry reveals two new variable stars in the crowded central region of the globular cluster NGC 6981

Jesper Skottfelt, D. M. Bramich, R. Figuera Jaimes +33

Two previously unknown variable stars in the crowded central region of the globular cluster NGC 6981 are presented. The observations were made using the Electron Multiplying CCD (E…