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TIC 168789840: A Sextuply Eclipsing Sextuple Star System (2021)
Journal Article
Hellier. (2021). TIC 168789840: A Sextuply Eclipsing Sextuple Star System. Astronomical Journal, 162 - 162. https://doi.org/10.3847/1538-3881/abddb5

We report the discovery of a sextuply eclipsing sextuple star system from TESS data, TIC 168789840, also known as TYC 7037-89-1, the first known sextuple system consisting of three eclipsing binaries. The target was observed in Sectors 4 and 5 during... Read More about TIC 168789840: A Sextuply Eclipsing Sextuple Star System.

TIC 278825952: a triply eclipsing hierarchical triple system with the most intrinsically circular outer orbit (2020)
Journal Article
Maxted. (2020). TIC 278825952: a triply eclipsing hierarchical triple system with the most intrinsically circular outer orbit. Monthly Notices of the Royal Astronomical Society, 6034-6043. https://doi.org/10.1093/mnras/staa2762

We report the discovery of a compact triply eclipsing triple star system in the southern continuous viewing zone of the TESS space telescope. TIC 278825952 is a previously unstudied, circular eclipsing binary with a period of 4.781 days with a tertia... Read More about TIC 278825952: a triply eclipsing hierarchical triple system with the most intrinsically circular outer orbit.

Discovery of Three New Transiting Hot Jupiters: WASP-161 b, WASP-163 b, and WASP-170 b (2019)
Journal Article
Maxted, Smalley, & Hellier. (2019). Discovery of Three New Transiting Hot Jupiters: WASP-161 b, WASP-163 b, and WASP-170 b. Astronomical Journal, 43. https://doi.org/10.3847/1538-3881/aaf422

We present the discovery of three new transiting hot Jupiters by the WASP-South project, WASP-161 b, WASP-163 b, and WASP-170 b. Follow-up radial velocities obtained with the Euler/CORALIE spectrograph and transit light curves obtained with the TRAPP... Read More about Discovery of Three New Transiting Hot Jupiters: WASP-161 b, WASP-163 b, and WASP-170 b.

A Discrete Set of Possible Transit Ephemerides for Two Long-period Gas Giants Orbiting HIP 41378 (2019)
Journal Article
Hellier. (2019). A Discrete Set of Possible Transit Ephemerides for Two Long-period Gas Giants Orbiting HIP 41378. Astronomical Journal, https://doi.org/10.3847/1538-3881/aaf0a2

In 2015, K2 observations of the bright (V = 8.9, K = 7.7) star HIP 41378 revealed a rich system of at least five transiting exoplanets, ranging in size from super-Earths to gas giants. The 2015 K2 observations only spanned 74.8 days, and the outer th... Read More about A Discrete Set of Possible Transit Ephemerides for Two Long-period Gas Giants Orbiting HIP 41378.

Machine-learning Approaches to Exoplanet Transit Detection and Candidate Validation in Wide-field Ground-based Surveys (2018)
Journal Article
Schanche, N., Collier Cameron, A., Hébrard, G., Nielsen, L., Triaud, A. H. M. J., Almenara, J. M., …Wheatley, P. J. Machine-learning Approaches to Exoplanet Transit Detection and Candidate Validation in Wide-field Ground-based Surveys. https://doi.org/10.1093/mnras/sty3146. Manuscript submitted for publication

Since the start of the Wide Angle Search for Planets (WASP) program, more than 160 transiting exoplanets have been discovered in the WASP data. In the past, possible transit-like events identified by the WASP pipeline have been vetted by human inspec... Read More about Machine-learning Approaches to Exoplanet Transit Detection and Candidate Validation in Wide-field Ground-based Surveys.

The Kinematics of the Scorpius-Centaurus OB Association from Gaia DR1 (2018)
Journal Article
Wright. (2018). The Kinematics of the Scorpius-Centaurus OB Association from Gaia DR1. Monthly Notices of the Royal Astronomical Society, 381-398. https://doi.org/10.1093/mnras/sty207

We present a kinematic study of the Scorpius-Centaurus (Sco-Cen) OB association (Sco OB2) using Gaia DR1 parallaxes and proper motions. Our goal is to test the classical theory that OB associations are the expanded remnants of dense and compact star... Read More about The Kinematics of the Scorpius-Centaurus OB Association from Gaia DR1.

Using principal component analysis to understand the variability of PDS 456 (2018)
Journal Article
(2018). Using principal component analysis to understand the variability of PDS 456. Monthly Notices of the Royal Astronomical Society, 108-114. https://doi.org/10.1093/mnras/stx2803

We present a spectral-variability analysis of the low-redshift quasar PDS 456 using principal component analysis. In the XMM-Newton data, we find a strong peak in the first principal component at the energy of the Fe absorption line from the highly b... Read More about Using principal component analysis to understand the variability of PDS 456.

NuSTAR View of the Black Hole Wind in the Galaxy Merger IRAS F11119+3257 (2017)
Journal Article
(2017). NuSTAR View of the Black Hole Wind in the Galaxy Merger IRAS F11119+3257. Astrophysical Journal, 151. https://doi.org/10.3847/1538-4357/aa9579

Galactic winds driven by active galactic nuclei (AGNs) have been invoked to play a fundamental role in the co-evolution between supermassive black holes and their host galaxies. Finding observational evidence of such feedback mechanisms is of crucial... Read More about NuSTAR View of the Black Hole Wind in the Galaxy Merger IRAS F11119+3257.

A deep X-ray view of the bare AGN Ark 120. III. X-ray timing analysis and multiwavelength variability (2017)
Journal Article
(2017). A deep X-ray view of the bare AGN Ark 120. III. X-ray timing analysis and multiwavelength variability. Monthly Notices of the Royal Astronomical Society, 3237-3258. https://doi.org/10.1093/mnras/stx2889

We present the spectral/timing properties of the bare Seyfert galaxy Ark 120 through a deep ~420ks XMM-Newton campaign plus recent NuSTAR observations and a ~6-month Swift monitoring campaign. We investigate the spectral decomposition through fractio... Read More about A deep X-ray view of the bare AGN Ark 120. III. X-ray timing analysis and multiwavelength variability.

Spectroscopic survey of Kepler stars - II. FIES/NOT observations of A- and F-type stars (2017)
Journal Article
Smalley. (2017). Spectroscopic survey of Kepler stars - II. FIES/NOT observations of A- and F-type stars. Monthly Notices of the Royal Astronomical Society, 2870 -2889. https://doi.org/10.1093/mnras/stx1256

We have analysed high-resolution spectra of 28 A and 22 F stars in the Kepler field, observed using the Fibre-Fed Échelle Spectrograph at the Nordic Optical Telescope. We provide spectral types, atmospheric parameters and chemical abundances for 50 s... Read More about Spectroscopic survey of Kepler stars - II. FIES/NOT observations of A- and F-type stars.

Eclipsing binary stars with a delta Scuti component (2017)
Journal Article
Smalley. (2017). Eclipsing binary stars with a delta Scuti component. Monthly Notices of the Royal Astronomical Society, 915 -931. https://doi.org/10.1093/mnras/stx1241

Eclipsing binaries with a d Sct component are powerful tools to derive the fundamental parameters and probe the internal structure of stars. In this study, spectral analysis of six primary d Sct components in eclipsing binaries has been performed. Va... Read More about Eclipsing binary stars with a delta Scuti component.

The Homogeneous Study of Transiting Systems (HoSTS) – II. The influence of the line list on stellar parameters (2017)
Journal Article
Smalley. (2017). The Homogeneous Study of Transiting Systems (HoSTS) – II. The influence of the line list on stellar parameters. Monthly Notices of the Royal Astronomical Society, 4850 -4862. https://doi.org/10.1093/mnras/stx1180

The use of high-resolution, high signal-to-noise stellar spectra is essential in order to determine the most accurate and precise stellar atmospheric parameters via spectroscopy. This is particularly important for determining the fundamental paramete... Read More about The Homogeneous Study of Transiting Systems (HoSTS) – II. The influence of the line list on stellar parameters.

ALMA spectral survey of Supernova 1987A-molecular inventory, chemistry, dynamics and explosive nucleosynthesis (2017)
Journal Article
Van Loon. (2017). ALMA spectral survey of Supernova 1987A-molecular inventory, chemistry, dynamics and explosive nucleosynthesis. Monthly Notices of the Royal Astronomical Society, 3347 -3362. https://doi.org/10.1093/mnras/stx830

We report the first molecular line survey of Supernova 1987A in the millimetre wavelength range. In the Atacama Large Millimeter/submillimeter Array (ALMA) 210–300 and 340–360 GHz spectra, we detected cold (20–170 K) CO, 28SiO, HCO+ and SO, with weak... Read More about ALMA spectral survey of Supernova 1987A-molecular inventory, chemistry, dynamics and explosive nucleosynthesis.

The JCMT Plane Survey: first complete data release - emission maps and compact source catalogue (2017)
Journal Article
(2017). The JCMT Plane Survey: first complete data release - emission maps and compact source catalogue. Monthly Notices of the Royal Astronomical Society, 2163 -2183. https://doi.org/10.1093/mnras/stx874

We present the first data release of the James Clerk Maxwell Telescope Plane Survey (JPS), the JPS Public Release 1. JPS is an 850-µm continuum survey of six fields in the northern inner Galactic plane in a longitude range of l = 7°–63°, made with th... Read More about The JCMT Plane Survey: first complete data release - emission maps and compact source catalogue.

Three new pulsating sdB stars discovered with SuperWASP (2017)
Journal Article
Smalley. (2017). Three new pulsating sdB stars discovered with SuperWASP. Monthly Notices of the Royal Astronomical Society, 5020 -5032. https://doi.org/10.1093/mnras/stx077

We present an analysis of three new pulsating subdwarf B stars discovered in the Super Wide Angle Search for Planets archive. Two of the stars, J1938+5609 and J0902-0720, are p-mode pulsators; J1938+5609 shows a pulsation at 231.62 d-1 (P = 373 s; 26... Read More about Three new pulsating sdB stars discovered with SuperWASP.

A WISE-based search for debris discs amongst M-dwarfs in nearby, young, moving groups (2017)
Journal Article
Binks, A. S., & Jeffries, R. (2017). A WISE-based search for debris discs amongst M-dwarfs in nearby, young, moving groups. Monthly Notices of the Royal Astronomical Society, 496(1), 579-593. https://doi.org/10.1093/mnras/stx838

We present a search for debris discs amongst M-dwarf members of nearby, young (5–150 Myr) moving groups (MGs) using infrared (IR) photometry, primarily from the Wide Infrared Survey Explorer (WISE). A catalogue of 100 MG M dwarfs that have suitable W... Read More about A WISE-based search for debris discs amongst M-dwarfs in nearby, young, moving groups.

Long-term variability of T Tauri stars using WASP (2017)
Journal Article
(2017). Long-term variability of T Tauri stars using WASP. Monthly Notices of the Royal Astronomical Society, https://doi.org/10.1093/mnras/stw2977

We present a reference study of the long-term optical variability of young stars using data from the WASP project. Our primary sample is a group of well-studied classical T Tauri stars (CTTS), mostly in Taurus-Auriga. WASP lightcurves cover timescale... Read More about Long-term variability of T Tauri stars using WASP.