Electrical resistivity tomography array comparisons to detect cleared-wall foundations in brownfield sites (2019)
Journal Article
Eissa, R., Cassidy, N., Pringle, J., & Stimpson, I. (2019). Electrical resistivity tomography array comparisons to detect cleared-wall foundations in brownfield sites. Quarterly Journal of Engineering Geology and Hydrogeology, 53(1), 137-144. https://doi.org/10.1144/qjegh2018-192

Electrical resistivity surveys are commonly used to detect and characterise near-surface buried objects in commercial developments of brownfield sites. 2D ERT profiles arrays predominate in such surveys due to their relatively rapid deployment, good... Read More about Electrical resistivity tomography array comparisons to detect cleared-wall foundations in brownfield sites.

Pulsation versus metallicism in Am stars as revealed by LAMOST and WASP (2016)
Journal Article
Smalley, B., Antoci, V., L. Holdsworth, D., W. Kurtz, D., J. Murphy, S., De Cat, P., …J. Wheatley, P. (2017). Pulsation versus metallicism in Am stars as revealed by LAMOST and WASP. Monthly Notices of the Royal Astronomical Society, 465(3), 2662-2670. https://doi.org/10.1093/mnras/stw2903

We present the results of a study of a large sample of A and Am stars with spectral types from LAMOST and light curves from WASP. We find that, unlike normal A stars, d Sct pulsations in Am stars are mostly confined to the effective temperature range... Read More about Pulsation versus metallicism in Am stars as revealed by LAMOST and WASP.

The Complex Circumnuclear Environment Of The Broad-line Radio Galaxy 3C 390.3 Revealed By Chandra Hetg (2016)
Journal Article
(2016). The Complex Circumnuclear Environment Of The Broad-line Radio Galaxy 3C 390.3 Revealed By Chandra Hetg. Astrophysical Journal, https://doi.org/10.3847/0004-637x/830/2/98

We present the first high spectral resolution X-ray observation of the broad-line radio galaxy 3C 390.3 obtained with the high-energy transmission grating spectrometer on board the Chandra X-ray Observatory. The spectrum shows complex emission and ab... Read More about The Complex Circumnuclear Environment Of The Broad-line Radio Galaxy 3C 390.3 Revealed By Chandra Hetg.

A deep X-ray view of the bare AGN Ark 120. I. Revealing the Soft X-ray Line Emission (2016)
Journal Article
(2016). A deep X-ray view of the bare AGN Ark 120. I. Revealing the Soft X-ray Line Emission. Astrophysical Journal, https://doi.org/10.3847/0004-637X/828/2/98

The Seyfert 1 galaxy, Ark 120, is a prototype example of the so-called class of bare nucleus AGN, whereby there is no known evidence for the presence of ionized gas along the direct line of sight. Here deep ($>400$ ks exposure), high resolution X-ray... Read More about A deep X-ray view of the bare AGN Ark 120. I. Revealing the Soft X-ray Line Emission.

Do open star clusters evolve toward energy equipartition? (2016)
Journal Article
(2016). Do open star clusters evolve toward energy equipartition?. Monthly Notices of the Royal Astronomical Society, 317-328. https://doi.org/10.1093/mnras/stw998

We investigate whether open clusters (OCs) tend to energy equipartition, by means of direct N-body simulations with a broken power-law mass function. We find that the simulated OCs become strongly mass segregated, but the local velocity dispersion do... Read More about Do open star clusters evolve toward energy equipartition?.

SXP 214: An X-ray Pulsar In The Small Magellanic Cloud, Crossing The Circumstellar Disk Of The Companion (2016)
Journal Article
Wright. (2016). SXP 214: An X-ray Pulsar In The Small Magellanic Cloud, Crossing The Circumstellar Disk Of The Companion. Astrophysical Journal, https://doi.org/10.3847/0004-637X/826/1/4

Located in the Small Magellanic Cloud (SMC), SXP 214 is an X-ray pulsar in a high mass X-ray binary system with a Be-star companion. A recent survey of the SMC under a Chandra X-ray Visionary program found that the source was in a transition when the... Read More about SXP 214: An X-ray Pulsar In The Small Magellanic Cloud, Crossing The Circumstellar Disk Of The Companion.

Discovery of Broad Soft X-ray Absorption Lines from the Quasar Wind in PDS 456 (2016)
Journal Article
(2016). Discovery of Broad Soft X-ray Absorption Lines from the Quasar Wind in PDS 456. Astrophysical Journal, https://doi.org/10.3847/0004-637X/824/1/20

High resolution soft X-ray spectroscopy of the prototype accretion disk wind quasar, PDS 456, is presented. Here, the XMM-Newton RGS spectra are analyzed from the large 2013-2014 XMM-Newton campaign, consisting of 5 observations of approximately 100... Read More about Discovery of Broad Soft X-ray Absorption Lines from the Quasar Wind in PDS 456.

Broadband short term variability of the quasar PDS 456 (2016)
Journal Article
(2016). Broadband short term variability of the quasar PDS 456. Astronomische Nachrichten, 495-499. https://doi.org/10.1002/asna.201612336

We present a detailed analysis of a recent $500$ ks net exposure \textit{Suzaku} observation, carried out in 2013, of the nearby ($z=0.184$) luminous (L$_{\rm bol}\sim10^{47}$ erg s$^{-1}$) quasar PDS 456 in which the X-ray flux was unusually low. Th... Read More about Broadband short term variability of the quasar PDS 456.

Imprints of a high-velocity wind on the soft X-ray spectrum of PG1211+143 (2016)
Journal Article
(2016). Imprints of a high-velocity wind on the soft X-ray spectrum of PG1211+143. Monthly Notices of the Royal Astronomical Society, 4389 - 4396. https://doi.org/10.1093/mnras/stw933

An extended XMM–Newton observation of the luminous narrow-line Seyfert galaxy PG1211+143 in 2014 has revealed a more complex high-velocity wind, with components distinguished in velocity, ionization level, and column density. Here we report soft X-ra... Read More about Imprints of a high-velocity wind on the soft X-ray spectrum of PG1211+143.

Detection of a second high-velocity component in the highly ionized wind from PG 1211+143 (2016)
Journal Article
(2016). Detection of a second high-velocity component in the highly ionized wind from PG 1211+143. Monthly Notices of the Royal Astronomical Society, 2951 -2957. https://doi.org/10.1093/mnras/stw165

An extended XMM–Newton observation of the luminous narrow line Seyfert galaxy PG1211+143 in 2014 has revealed a more complex highly ionized, high-velocity outflow.
The detection of previously unresolved spectral structure in Fe K absorption finds a... Read More about Detection of a second high-velocity component in the highly ionized wind from PG 1211+143.

CK Vul: a smorgasbord of hydrocarbons rules out a 1670 nova (and much else besides) (2016)
Journal Article
Van Loon. (2016). CK Vul: a smorgasbord of hydrocarbons rules out a 1670 nova (and much else besides). Monthly Notices of the Royal Astronomical Society, 2871 - 2876. https://doi.org/10.1093/mnras/stw352

We present observations of CK Vul obtained with the Spitzer Space Telescope. The infrared spectrum reveals a warm dust continuum with nebular, molecular hydrogen and HCN lines superimposed, together with the ‘Unidentified Infrared’ features. The nebu... Read More about CK Vul: a smorgasbord of hydrocarbons rules out a 1670 nova (and much else besides).

The Gaia-ESO Survey: Dynamical analysis of the L1688 region in Ophiuchus (2016)
Journal Article
Jeffries, R., & Wright, N. J. (2016). The Gaia-ESO Survey: Dynamical analysis of the L1688 region in Ophiuchus. Astronomy and Astrophysics Supplement Series, https://doi.org/10.1051/0004-6361/201527253

The Gaia ESO Public Spectroscopic Survey (GES) is providing the astronomical community with high-precision measurements of many stellar parameters including radial velocities (RVs) of stars belonging to several young clusters and star-forming regions... Read More about The Gaia-ESO Survey: Dynamical analysis of the L1688 region in Ophiuchus.

New quasars behind the Magellanic Clouds. Spectroscopic confirmation of near-infrared selected candidates (2016)
Journal Article
Van Loon. (2016). New quasars behind the Magellanic Clouds. Spectroscopic confirmation of near-infrared selected candidates. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201527398

Context. Quasi-stellar objects (quasars) located behind nearby galaxies provide an excellent absolute reference system for astrometric studies, but they are difficult to identify because of fore- and background contamination. Deep wide-field, high an... Read More about New quasars behind the Magellanic Clouds. Spectroscopic confirmation of near-infrared selected candidates.

X-ray timing analysis of the quasar PG 1211+143 (2016)
Journal Article
(2016). X-ray timing analysis of the quasar PG 1211+143. Monthly Notices of the Royal Astronomical Society, 38 -50. https://doi.org/10.1093/mnras/stv2896

We report on a timing analysis of a new ~630?ks XMM–Newton observation of the quasar, PG 1211+143. We find a well-defined X-ray power spectrum with a well-detected bend at ~7 × 10-5?Hz, consistent with the established tbend–MBH correlation for lumino... Read More about X-ray timing analysis of the quasar PG 1211+143.

Dynamical evolution of star forming regions - II. Basic kinematics (2016)
Journal Article
Parker, R. J., & Wright, N. J. (2016). Dynamical evolution of star forming regions - II. Basic kinematics. Monthly Notices of the Royal Astronomical Society, 3430-3447. https://doi.org/10.1093/mnras/stw087

We follow the dynamical evolution of young star-forming regions with a wide range of initial conditions and examine how the radial velocity dispersion, $\sigma$, evolves over time. We compare this velocity dispersion to the theoretically expected val... Read More about Dynamical evolution of star forming regions - II. Basic kinematics.

SuperWASP discovery and SALT confirmation of a semi-detached eclipsing binary that contains a delta Scuti star (2016)
Journal Article
Smalley. (2016). SuperWASP discovery and SALT confirmation of a semi-detached eclipsing binary that contains a delta Scuti star. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201526881

Aims. We searched the SuperWASP archive for objects that display multiply periodic photometric variations.

Methods. Specifically we sought evidence for eclipsing binary stars that display a further non-harmonically related signal in their power sp... Read More about SuperWASP discovery and SALT confirmation of a semi-detached eclipsing binary that contains a delta Scuti star.

Short term X-ray spectral variability of the quasar PDS 456 observed in a low flux state (2016)
Journal Article
(2016). Short term X-ray spectral variability of the quasar PDS 456 observed in a low flux state. Monthly Notices of the Royal Astronomical Society, 1311-1329. https://doi.org/10.1093/mnras/stw354

We present an analysis of the 2013 Suzaku campaign on the nearby luminous quasar PDS 456, covering a total duration of ~1 Ms and a net exposure of 455 ks. During these observations, the X-ray flux was suppressed by a factor of >10 in the soft X-ray b... Read More about Short term X-ray spectral variability of the quasar PDS 456 observed in a low flux state.

New Transit Observations for HAT-P-30 b, HAT-P-37 b, TrES-5 b, WASP-28 b, WASP-36 b and WASP-39 b (2016)
Journal Article
Maciejewski, G., Dimitrov, D., Mancini, L., Southworth, J., Ciceri, S., D'Ago, G., …Henning, T. (2016). New Transit Observations for HAT-P-30 b, HAT-P-37 b, TrES-5 b, WASP-28 b, WASP-36 b and WASP-39 b. Acta Astronomica, 66(1), 55 - 74

We present new transit light curves for planets in six extrasolar planetary systems. They were acquired with 0.4-2.2 m telescopes located in west Asia, Europe, and South America. When combined with literature data, they allowed us to redetermine syst... Read More about New Transit Observations for HAT-P-30 b, HAT-P-37 b, TrES-5 b, WASP-28 b, WASP-36 b and WASP-39 b.

The Global Implications of the Hard Excess II: Analysis of the Local population of Radio Quiet AGN (2016)
Journal Article
(2016). The Global Implications of the Hard Excess II: Analysis of the Local population of Radio Quiet AGN. Astrophysical Journal, https://doi.org/10.3847/0004-637X/818/1/12

Active galactic nuclei (AGN) show evidence for reprocessing gas, outflowing from the accreting black hole. The combined effects of absorption and scattering from the circumnuclear material likely explains the `hard excess' of X-ray emission above 20... Read More about The Global Implications of the Hard Excess II: Analysis of the Local population of Radio Quiet AGN.

The Kinematics of Star Formation: Theory and Observation in the Gaia Era (Published title 'Star Formation in the Gaia Era') (2016)
Journal Article
Wright, N. (2016). The Kinematics of Star Formation: Theory and Observation in the Gaia Era (Published title 'Star Formation in the Gaia Era'). Astronomy and Geophysics, 37-42. https://doi.org/10.1093/astrogeo/atw042

The European Space Agency's Gaia space telescope, launched in 2013, aims to measure the positions, parallaxes, and proper motions of a billion stars in our Galaxy and throughout the Local Group. In doing so it will include hundreds of thousands of yo... Read More about The Kinematics of Star Formation: Theory and Observation in the Gaia Era (Published title 'Star Formation in the Gaia Era').