The highly inflated giant planet WASP-174b

Mancini, L.; Sarkis, P.; Henning, Th.; Bakos, G.A.; Bayliss, D.; Bento, J.; Bhatti, W.; Brahm, R.; Csubry, Z.; Espinoza, N.; Hartman, J.; Jordan, A.; Penev, K.; Rabus, M.; Suc, V.; de Val-Borro, M.; Zhou, G.; Chen, G.; Damasso, M.; Southworth, J.; Tan, T.G.

doi:10.1051/0004-6361/201936532

A ß?Cephei pulsator and a changing orbital inclination in the high-mass eclipsing binary system VV?Orionis (2020)
Journal Article
Southworth, J., Bowman, D. M., & Pavlovski, K. (2021). A ß?Cephei pulsator and a changing orbital inclination in the high-mass eclipsing binary system VV?Orionis. Monthly Notices of the Royal Astronomical Society: Letters, 501(1), L65 - L70. https://doi.org/10.1093/mnrasl/slaa197

We present an analysis of the high-mass eclipsing binary system VV?Ori based on photometry from the TESS satellite. The primary star (B1?V, 9.5?M??) shows ß?Cephei pulsations and the secondary (B7?V, 3.8?M??) is possibly a slowly pulsating B star. We... Read More about A ß?Cephei pulsator and a changing orbital inclination in the high-mass eclipsing binary system VV?Orionis.

Rediscussion Of Eclipsing Binaries. Paper I: The Totally-eclipsing B-type System Zeta Phoenicis (2020)
Journal Article
Taylor. (2020). Rediscussion Of Eclipsing Binaries. Paper I: The Totally-eclipsing B-type System Zeta Phoenicis. Observatory, 140, 247 -262

zeta Phe is a bright binary system containing B6 V and B8 V stars. It has deep total and annular eclipses, a slightly eccentric orbit with a period of I-d.669, apsidal motion, and a third body on a wider orbit. The Transiting Exoplanet Survey Satelli... Read More about Rediscussion Of Eclipsing Binaries. Paper I: The Totally-eclipsing B-type System Zeta Phoenicis.

A white dwarf bound to the transiting planetary system WASP-98 (2020)
Journal Article
Southworth, J., Tremblay, P., Gänsicke, B. T., Evans, D., & Močnik, T. (2020). A white dwarf bound to the transiting planetary system WASP-98. Monthly Notices of the Royal Astronomical Society, 497(4), 4416 - 4422. https://doi.org/10.1093/mnras/staa2328

WASP-98 is a planetary system containing a hot Jupiter transiting a late-G dwarf. A fainter star 12? distant has previously been identified as a white dwarf, with a distance and proper motion consistent with a physical association with the planetary... Read More about A white dwarf bound to the transiting planetary system WASP-98.

OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet Orbiting M-dwarf Host in the Inner Galactic Disk (2020)
Journal Article
Hirao, Y., Bennett, D. P., Ryu, Y., Koshimoto, N., Udalski, A., Yee, J. C., …Kandori, R. (2020). OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet Orbiting M-dwarf Host in the Inner Galactic Disk. Astronomical Journal, 160(2), Article 74. https://doi.org/10.3847/1538-3881/ab9ac3

We report the discovery and analysis of the planetary microlensing event OGLE-2017-BLG-0406, which was observed both from the ground and by the Spitzer satellite in a solar orbit. At high magnification, the anomaly in the light curve was densely obse... Read More about OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet Orbiting M-dwarf Host in the Inner Galactic Disk.

Two Directly Imaged, Wide-orbit Giant Planets around the Young, Solar Analog TYC 8998-760-1 (2020)
Journal Article
Bohn, A. J., Kenworthy, M. A., Ginski, C., Rieder, S., Mamajek, E. E., Meshkat, T., …Southworth, J. (2020). Two Directly Imaged, Wide-orbit Giant Planets around the Young, Solar Analog TYC 8998-760-1. Astrophysical Journal, 898, Article L16. https://doi.org/10.3847/2041-8213/aba27e

Even though tens of directly imaged companions have been discovered in the past decades, the number of directly confirmed multiplanet systems is still small. Dynamical analysis of these systems imposes important constraints on formation mechanisms of... Read More about Two Directly Imaged, Wide-orbit Giant Planets around the Young, Solar Analog TYC 8998-760-1.

A Holistic and Probabilistic Approach to the Ground-based and Spaceborne Data of HAT-P-19 System (2020)
Journal Article
Baştürk, Ö., Yalçınkaya, S., Esmer, E. M., Tanrıverdi, T., Mancini, L., Daylan, T., …Keten, B. (2020). A Holistic and Probabilistic Approach to the Ground-based and Spaceborne Data of HAT-P-19 System. Monthly Notices of the Royal Astronomical Society, 496(4), 4174-4190. https://doi.org/10.1093/mnras/staa1758

We update the main physical and orbital properties of the transiting hot Saturn planet HAT-P-19 b, based on a global modelling of high-precision transit and occultation light curves, taken with ground-based and space telescopes, archive spectra and r... Read More about A Holistic and Probabilistic Approach to the Ground-based and Spaceborne Data of HAT-P-19 System.

The TESS light curve of AI Phoenicis (2020)
Journal Article
Maxted, P. F. L., Gaulme, P., Graczyk, D., Hełminiak, K. G., Johnston, C., Orosz, J. A., …Chaplin, W. J. (2020). The TESS light curve of AI Phoenicis. Monthly Notices of the Royal Astronomical Society, 498(1), 332-343. https://doi.org/10.1093/mnras/staa1662

Accurate masses and radii for normal stars derived from observations of detached eclipsing binary stars are of fundamental importance for testing stellar models and may be useful for calibrating free parameters in these model if the masses and radii... Read More about The TESS light curve of AI Phoenicis.

Large-scale changes of the cloud coverage in the e Indi Ba,Bb system (2020)
Journal Article
Hitchcock, J. A., Helling, C., Scholz, A., Hodosan, G., Dominik, M., Hundertmark, M., …Collaboration, T. M. (2020). Large-scale changes of the cloud coverage in the e Indi Ba,Bb system. Monthly Notices of the Royal Astronomical Society, 495(4), 3881-3899. https://doi.org/10.1093/mnras/staa1344

We present the results of 14 nights of I-band photometric monitoring of the nearby brown dwarf binary, e Indi Ba,Bb. Observations were acquired over 2 months, and total close to 42 hours of coverage at a typically high cadence of 1.4 minutes. At a se... Read More about Large-scale changes of the cloud coverage in the e Indi Ba,Bb system.

Discovery of ß Cep pulsations in the eclipsing binary V453 Cygni (2020)
Journal Article
Southworth, J., Bowman, D. M., Tkachenko, A., & Pavlovski, K. (2020). Discovery of ß Cep pulsations in the eclipsing binary V453 Cygni. Monthly Notices of the Royal Astronomical Society: Letters, 497(1), L19–L23. https://doi.org/10.1093/mnrasl/slaa091

V453 Cyg is an eclipsing binary containing 14 and 11 $\, \rm M_ødot$ stars in an eccentric short-period orbit. We have discovered ß Cep-type pulsations in this system using Transiting Exoplanet Survey Satellite data. We identify seven significant pul... Read More about Discovery of ß Cep pulsations in the eclipsing binary V453 Cygni.

The mass discrepancy in intermediate- and high-mass eclipsing binaries: The need for higher convective core masses (2020)
Journal Article
Tkachenko, A., Pavlovski, K., Johnston, C., Pedersen, M., Michielsen, M., Bowman, D., …Aerts, C. (2020). The mass discrepancy in intermediate- and high-mass eclipsing binaries: The need for higher convective core masses. Astronomy and Astrophysics, 637, Article A60. https://doi.org/10.1051/0004-6361/202037452

Context. Eclipsing, spectroscopic double-lined binary star systems are excellent laboratories for calibrating theories of stellar interior structure and evolution. Their precise and accurate masses and radii measured from binary dynamics offer model-... Read More about The mass discrepancy in intermediate- and high-mass eclipsing binaries: The need for higher convective core masses.

Two Transiting Hot Jupiters from the WASP Survey: WASP-150b and WASP-176b (2020)
Journal Article
Cooke, B. F., Pollacco, D., Almleaky, Y., Barkaoui, K., Benkhaldoun, Z., Blake, J. A., …Alikakos, J. (2020). Two Transiting Hot Jupiters from the WASP Survey: WASP-150b and WASP-176b. Astronomical Journal, 159(6), Article 255. https://doi.org/10.3847/1538-3881/ab88db

We report the discovery of two transiting exoplanets from the WASP survey, WASP-150b and WASP-176b. WASP-150b is an eccentric (e = 0.38) hot Jupiter on a 5.6 day orbit around a V = 12.03, F8 main-sequence host. The host star has a mass and radius of... Read More about Two Transiting Hot Jupiters from the WASP Survey: WASP-150b and WASP-176b.

A multiplicity study of transiting exoplanet host stars: II. Revised properties of transiting planetary systems with companions (2020)
Journal Article
Southworth, J., Bohn, A., Kenworthy, M., Ginski, C., & Mancini, L. (2020). A multiplicity study of transiting exoplanet host stars: II. Revised properties of transiting planetary systems with companions. Astronomy & Astrophysics, 635, Article A74. https://doi.org/10.1051/0004-6361/201937334

Context. Binarity is a widespread phenomenon around solar-type stars, including the host stars of transiting extrasolar planets. Aims. We performed a detailed study of six transiting planetary systems with relatively bright stars close enough to a... Read More about A multiplicity study of transiting exoplanet host stars: II. Revised properties of transiting planetary systems with companions.

A multiplicity study of transiting exoplanet host stars I. High-contrast imaging with VLT/SPHERE (2020)
Journal Article
Bohn, A., Southworth, J., Ginski, C., Kenworthy, M., Maxted, P., & Evans, D. (2020). A multiplicity study of transiting exoplanet host stars I. High-contrast imaging with VLT/SPHERE. Astronomy & Astrophysics, 635, Article A73. https://doi.org/10.1051/0004-6361/201937127

Context. Many main-sequence stars are part of multiple systems. The effect of stellar multiplicity on planet formation and migration, however, is poorly understood. Aims. We study the multiplicity of stars hosting known transiting extra-solar plan... Read More about A multiplicity study of transiting exoplanet host stars I. High-contrast imaging with VLT/SPHERE.

Spitzer Microlensing Parallax Reveals Two Isolated Stars in the Galactic Bulge (2020)
Journal Article
Zang, W., Shvartzvald, Y., Wang, T., Udalski, A., Lee, C., Sumi, T., …The MiNDSTEp Collaboration. (in press). Spitzer Microlensing Parallax Reveals Two Isolated Stars in the Galactic Bulge. Astrophysical Journal, 891(1), 3. https://doi.org/10.3847/1538-4357/ab6ff8

We report the mass and distance measurements of two single-lens events from the 2017 Spitzer microlensing campaign. The ground-based observations yield the detection of finite-source effects, and the microlens parallaxes are derived from the joint an... Read More about Spitzer Microlensing Parallax Reveals Two Isolated Stars in the Galactic Bulge.

OGLE-2013-BLG-0911Lb: A Secondary on the Brown-dwarf Planet Boundary around an M Dwarf (2020)
Journal Article
Miyazaki, S., Sumi, T., Bennett, D. P., Udalski, A., Shvartzvald, Y., Street, R., …Verma, P. (2020). OGLE-2013-BLG-0911Lb: A Secondary on the Brown-dwarf Planet Boundary around an M Dwarf. Astronomical Journal, 159(2), Article 76. https://doi.org/10.3847/1538-3881/ab64de

We present the analysis of the binary-lens microlensing event OGLE-2013-BLG-0911. The best-fit solutions indicate the binary mass ratio of q ≃ 0.03, which differs from that reported in Shvartzvald et al. The event suffers from the well-known close/wi... Read More about OGLE-2013-BLG-0911Lb: A Secondary on the Brown-dwarf Planet Boundary around an M Dwarf.

The highly inflated giant planet WASP-174b (2020)
Journal Article
Mancini, L., Sarkis, P., Henning, T., Bakos, G., Bayliss, D., Bento, J., …Tan, T. (2020). The highly inflated giant planet WASP-174b. Astronomy & Astrophysics, 633, Article A30. https://doi.org/10.1051/0004-6361/201936532

The transiting exoplanetary system WASP-174 was reported to be composed by a main-sequence F star (V = 11.8 mag) and a giant planet, WASP-174b (orbital period P-orb = 4.23 days). However only an upper limit was placed on the planet mass (

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