Transit detection of the long-period volatile-rich super-Earth v2 Lupi d with CHEOPS (2021)
Journal Article
Maxted. (2021). Transit detection of the long-period volatile-rich super-Earth v2 Lupi d with CHEOPS. Nature Astronomy, 775-787. https://doi.org/10.1038/s41550-021-01381-5

Exoplanets transiting bright nearby stars are key objects for advancing our knowledge of planetary formation and evolution. The wealth of photons from the host star gives detailed access to the atmospheric, interior and orbital properties of the plan... Read More about Transit detection of the long-period volatile-rich super-Earth v2 Lupi d with CHEOPS.

Warm Jupiters in TESS Full-frame Images: A Catalog and Observed Eccentricity Distribution for Year 1 (2021)
Journal Article
Hellier. (2021). Warm Jupiters in TESS Full-frame Images: A Catalog and Observed Eccentricity Distribution for Year 1. Astrophysical Journal, https://doi.org/10.3847/1538-4365/abf73c

Warm Jupiters—defined here as planets larger than 6 Earth radii with orbital periods of 8–200 days—are a key missing piece in our understanding of how planetary systems form and evolve. It is currently debated whether Warm Jupiters form in situ, unde... Read More about Warm Jupiters in TESS Full-frame Images: A Catalog and Observed Eccentricity Distribution for Year 1.

Dispersal timescale of protoplanetary disks in the low-metallicity young cluster Dolidze 25 (2021)
Journal Article
Wright. (2021). Dispersal timescale of protoplanetary disks in the low-metallicity young cluster Dolidze 25. Astronomy & Astrophysics, 1-37. https://doi.org/10.1051/0004-6361/202140361

<jats:p><jats:italic>Context.</jats:italic> The dispersal of protoplanetary disks sets the timescale that is available for planets to assemble, and thus it is one of the fundamental parameters in theories of planetary formation. Disk dispersal is det... Read More about Dispersal timescale of protoplanetary disks in the low-metallicity young cluster Dolidze 25.

REDISCUSSION OF ECLIPSING BINARIES. PAPER 4: THE EVOLVED G-TYPE SYSTEM AN CAMELOPARDALIS (2021)
Journal Article
Taylor. (2021). REDISCUSSION OF ECLIPSING BINARIES. PAPER 4: THE EVOLVED G-TYPE SYSTEM AN CAMELOPARDALIS. Observatory, 141, 122 - 133

AN Cam is a little-studied eclipsing binary containing somewhat evolved components in an orbit with a period of 21(d).0 and an eccentricity of 0.47. A spectroscopic orbit based on photoelectric radial velocities was published in 1977. AN Cam has been... Read More about REDISCUSSION OF ECLIPSING BINARIES. PAPER 4: THE EVOLVED G-TYPE SYSTEM AN CAMELOPARDALIS.

Evolution of Wolf-Rayet stars as black hole progenitors (2021)
Journal Article
Higgins, E. R., Sander, A. A. C., Vink, J. S., & Hirschi, R. (2021). Evolution of Wolf-Rayet stars as black hole progenitors. Monthly Notices of the Royal Astronomical Society, 505(4), 4874-4889. https://doi.org/10.1093/mnras/stab1548

Evolved Wolf-Rayet stars form a key aspect of massive star evolution, and their strong outflows determine their final fates. In this study, we calculate grids of stellar models for a wide range of initial masses at five metallicities (ranging from so... Read More about Evolution of Wolf-Rayet stars as black hole progenitors.

The surface brightness–colour relations based on eclipsing binary stars and calibrated with Gaia EDR3 (2021)
Journal Article
Graczyk, D., Pietrzyński, G., Gałan, C., Gieren, W., Tkachenko, A., Anderson, R., Gallenne, A., Górski, M., Hajdu, G., Kałuszyński, M., Karczmarek, P., Kervella, P., Maxted, P., Nardetto, N., Narloch, W., Pavlovski, K., Pilecki, B., Pych, W., Southworth, J., Storm, J., …Konorski, P. (2021). The surface brightness–colour relations based on eclipsing binary stars and calibrated with Gaia EDR3. Astronomy & Astrophysics, 649, Article A109. https://doi.org/10.1051/0004-6361/202140571

Aims. The surface brightness–colour relation (SBCR) is a basic tool for establishing precise and accurate distances within the Local Group. Detached eclipsing binary stars with accurately determined radii and trigonometric parallaxes allow calibratio... Read More about The surface brightness–colour relations based on eclipsing binary stars and calibrated with Gaia EDR3.

The Gaia-ESO survey: A lithium depletion boundary age for NGC 2232 (2021)
Journal Article
Binks, A. S., Jeffries, R. D., Jackson, R. J., Franciosini, E., Sacco, G. G., Bayo, A., Magrini, L., Randich, S., Arancibia-Silva, J., Bergemann, M., Bragaglia, A., Gilmore, G., Gonneau, A., Hourihane, A., Jofré, P., Korn, A. J., Morbidelli, L., Prisinzano, L., Worley, C. C., & Zaggia, S. (2021). The Gaia-ESO survey: A lithium depletion boundary age for NGC 2232. Monthly Notices of the Royal Astronomical Society, 505(1), 1280-1292

Astrometry and photometry from {\it Gaia} and spectroscopic data from the {\it Gaia}-ESO Survey (GES) are used to identify the lithium depletion boundary (LDB) in the young cluster NGC 2232. A specialised spectral line analysis procedure was used to... Read More about The Gaia-ESO survey: A lithium depletion boundary age for NGC 2232.

Six transiting planets and a chain of Laplace resonances in TOI-178 (2021)
Journal Article
Maxted. (2021). Six transiting planets and a chain of Laplace resonances in TOI-178. Astronomy & Astrophysics, 1-29. https://doi.org/10.1051/0004-6361/202039767

Determining the architecture of multi-planetary systems is one of the cornerstones of understanding planet formation and evolution. Resonant systems are especially important as the fragility of their orbital configuration ensures that no significant... Read More about Six transiting planets and a chain of Laplace resonances in TOI-178.

The VMC Survey – XL. Three-dimensional structure of the Small Magellanic Cloud as derived from red clump stars (2021)
Journal Article
Tatton, B. L., Van Loon, J. T., Cioni, M.-R. L., Bekki, K., Bell, C. P. M., Choudhury, S., de Grijs, R., Groenewegen, M. A. T., Ivanov, V. D., Marconi, M., Oliveira, J. M., Ripepi, V., Rubele, S., Subramanian, S., & Sun, N.-C. (2021). The VMC Survey – XL. Three-dimensional structure of the Small Magellanic Cloud as derived from red clump stars. Monthly Notices of the Royal Astronomical Society, 504(2), 2983 - 2997. https://doi.org/10.1093/mnras/staa3857

Galaxy interactions distort the distribution of baryonic matter and can affect star formation. The nearby Magellanic Clouds are a prime example of an ongoing galaxy interaction process. Here, we use the intermediate-age (similar to 1-10 Gyr) red clum... Read More about The VMC Survey – XL. Three-dimensional structure of the Small Magellanic Cloud as derived from red clump stars.

A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020 (2021)
Journal Article
Maxted, P., Rappaport, S. A., Kurtz, D. W., Handler, G., Jones, D., Nelson, L. A., Saio, H., Fuller, J., Holdsworth, D. L., Vanderburg, A., Zak, J., Skarka, M., Aiken, J., Maxted, P. F. L., Stevens, D. J., Feliz, D. L., & Alicavu, F. K. (2021). A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020. Monthly Notices of the Royal Astronomical Society, 503(1), 254-269. https://doi.org/10.1093/mnras/stab336

We report the discovery of the third tidally tilted pulsator, TIC 63328020. Observations with the TESS satellite reveal binary eclipses with an orbital period of 1.1057 d, and d Scuti-type pulsations with a mode frequency of 21.09533 d-1. This pulsat... Read More about A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020.

Convective core sizes in rotating massive stars: I. Constraints from solar metallicity OB field stars (2021)
Journal Article
Martinet, S., Meynet, G., Ekström, S., Simón-Díaz, S., Holgado, G., Castro, N., Georgy, C., Eggenberger, P., Buldgen, G., Salmon, S., Hirschi, R., Groh, J., Farrell, E., & Murphy, L. (2021). Convective core sizes in rotating massive stars: I. Constraints from solar metallicity OB field stars. Astronomy & Astrophysics, 648, Article A126. https://doi.org/10.1051/0004-6361/202039426

Context. Spectroscopic studies of Galactic O and B stars show that many stars with masses above 8 M? have been observed in the Hertzsprung-Russell (HR) diagram just beyond the main-sequence (MS) band, as predicted by stellar models computed with a mo... Read More about Convective core sizes in rotating massive stars: I. Constraints from solar metallicity OB field stars.

KIC 5950759: a high-amplitude δ Sct star with amplitude and frequency modulation near the terminal age main sequence (2021)
Journal Article
M. Bowman, D., Hermans, J., Daszyńska-Daszkiewicz, J., L. Holdsworth, D., Tkachenko, A., J. Murphy, S., Smalley, B., & W. Kurtz, D. (2021). KIC 5950759: a high-amplitude δ Sct star with amplitude and frequency modulation near the terminal age main sequence. Monthly Notices of the Royal Astronomical Society, 504(3), 4039-4053. https://doi.org/10.1093/mnras/stab1124

Amongst the intermediate mass pulsating stars known as d Sct stars is a subset of high-amplitude and predominantly radial-mode pulsators known as high-amplitude d Sct (HADS) stars. From more than 2000 d Sct stars observed by the Kepler space mission,... Read More about KIC 5950759: a high-amplitude δ Sct star with amplitude and frequency modulation near the terminal age main sequence.

Stellar substructures in the periphery of the magellanic clouds with the VISTA hemisphere survey from the red clump and other tracers (2021)
Journal Article
El Youssoufi, D., Cioni, M.-R. L., Bell, C. P. M., de Grijs, R., Groenewegen, M. A. T., Ivanov, V. D., Matijevĭc, G., Niederhofer, F., Oliveira, J. M., Ripepi, V., Schmidt, T., Subramanian, S., Sun, N.-C., & Van Loon, J. T. (2021). Stellar substructures in the periphery of the magellanic clouds with the VISTA hemisphere survey from the red clump and other tracers. Monthly Notices of the Royal Astronomical Society, 505(2), 2020-2038. https://doi.org/10.1093/mnras/stab1075

We study the morphology of the stellar periphery of the Magellanic Clouds in search of substructure using near–infrared imaging data from the VISTA Hemisphere Survey (VHS). Based on the selection of different stellar populations using the (J - Ks, Ks... Read More about Stellar substructures in the periphery of the magellanic clouds with the VISTA hemisphere survey from the red clump and other tracers.

The Isaac Newton Telescope Monitoring Survey of Local Group Dwarf Galaxies. IV. The Star Formation History of Andromeda VII Derived from Long-period Variable Stars (2021)
Journal Article
Van Loon. (2021). The Isaac Newton Telescope Monitoring Survey of Local Group Dwarf Galaxies. IV. The Star Formation History of Andromeda VII Derived from Long-period Variable Stars. Astrophysical Journal, 127 - 127. https://doi.org/10.3847/1538-4357/abdec1

We have examined the star formation history (SFH) of Andromeda VII (And VII), the brightest and most massive dwarf spheroidal (dSph) satellite of the Andromeda galaxy (M31). Although M31 is surrounded by several dSph companions with old stellar popul... Read More about The Isaac Newton Telescope Monitoring Survey of Local Group Dwarf Galaxies. IV. The Star Formation History of Andromeda VII Derived from Long-period Variable Stars.

The Nature of the Eccentric Double-lined Eclipsing Binary System KIC 2306740 with Kepler Space Photometry (2021)
Journal Article
Kocak, D., Yakut, K., Southworth, J., Eggleton, P. P., Icli, T., Tout, C. A., & Bloemen, S. (2021). The Nature of the Eccentric Double-lined Eclipsing Binary System KIC 2306740 with Kepler Space Photometry. Astrophysical Journal, 910(2), Article 111. https://doi.org/10.3847/1538-4357/abe546

We present a detailed study of KIC 2306740, an eccentric double-lined eclipsing binary system. Kepler satellite data were combined with spectroscopic data obtained with the 4.2 m William Herschel Telescope (WHT). This allowed us to determine precise... Read More about The Nature of the Eccentric Double-lined Eclipsing Binary System KIC 2306740 with Kepler Space Photometry.

TESS Delivers Five New Hot Giant Planets Orbiting Bright Stars from the Full-frame Images (2021)
Journal Article
Hellier. (2021). TESS Delivers Five New Hot Giant Planets Orbiting Bright Stars from the Full-frame Images. Astronomical Journal, https://doi.org/10.3847/1538-3881/abe38a

We present the discovery and characterization of five hot and warm Jupiters—TOI-628 b (TIC 281408474; HD 288842), TOI-640 b (TIC 147977348), TOI-1333 b (TIC 395171208, BD+47 3521A), TOI-1478 b (TIC 409794137), and TOI-1601 b (TIC 139375960)—based on... Read More about TESS Delivers Five New Hot Giant Planets Orbiting Bright Stars from the Full-frame Images.

A hot mini-Neptune in the radius valley orbiting solar analogue HD 110113 (2021)
Journal Article
Hellier. (2021). A hot mini-Neptune in the radius valley orbiting solar analogue HD 110113. Monthly Notices of the Royal Astronomical Society, 4842 - 4857. https://doi.org/10.1093/mnras/stab182

We report the discovery of HD?110113?b (TESS object of interest-755.01), a transiting mini-Neptune exoplanet on a 2.5-d orbit around the solar-analogue HD?110113 (Teff = 5730 K). Using TESS photometry and High Accuracy Radial velocity Planet Searcher... Read More about A hot mini-Neptune in the radius valley orbiting solar analogue HD 110113.

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.

The VMC Survey – XLII. Near-infrared period–luminosity relations for RR Lyrae stars and the structure of the Large Magellanic Cloud (2021)
Journal Article
Cusano, F., Moretti, M. I., Clementini, G., Ripepi, V., Marconi, M., Cioni, M.-R. L., Rubele, S., Garofalo, A., de Grijs, R., Groenewegen, M. A. T., Oliveira, J. M., Subramanian, S., Sun, N.-C., & Van Loon, J. T. (2021). The VMC Survey – XLII. Near-infrared period–luminosity relations for RR Lyrae stars and the structure of the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 504(1), 1 - 15. https://doi.org/10.1093/mnras/stab901

We present results from an analysis of ~29?000 RR Lyrae stars located in the Large Magellanic Cloud (LMC). For these objects, near-infrared time-series photometry from the VISTA survey of the Magellanic Clouds system (VMC) and optical data from the O... Read More about The VMC Survey – XLII. Near-infrared period–luminosity relations for RR Lyrae stars and the structure of the Large Magellanic Cloud.

Convective core entrainment in 1D main-sequence stellar models (2021)
Journal Article
Scott, L. J. A., Hirschi, R., Georgy, C., Arnett, W. D., Meakin, C., Kaiser, E. A., Ekström, S., & Yusof, N. (2021). Convective core entrainment in 1D main-sequence stellar models. Monthly Notices of the Royal Astronomical Society, 503(3), 4208 - 4220. https://doi.org/10.1093/mnras/stab752

3D hydrodynamics models of deep stellar convection exhibit turbulent entrainment at the convective-radiative boundary which follows the entrainment law, varying with boundary penetrability. We implement the entrainment law in the 1D Geneva stellar ev... Read More about Convective core entrainment in 1D main-sequence stellar models.