Precise Age for the Binary Star System 12 Com in the Coma Berenices Cluster by Rex Lam, Eric L. Sandquist, Gail H. Schaefer, Christopher D. Farrington, John D. Monnier, Narsireddy Anugu, Cyprien Lanthermann, Robert Klement, Jacob Ennis, Benjamin R. Setterholm, Tyler Gardner, Stefan Kraus, Claire L. Davies, Jerome A. Orosz

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The CHARA Array Interferometric Program on the Multiplicity of Classical Be Stars: New Detections and Orbits of Stripped Subdwarf Companions by Robert Klement, Thomas Rivinius, Douglas R. Gies, Dietrich Baade, Antoine Mérand, John D. Monnier, Gail H. Schaefer, Cyprien Lanthermann, Narsireddy Anugu, Stefan Kraus, Tyler Gardner

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Imaging the Inner Astronomical Unit of the Herbig Be Star HD 190073 by Nour Ibrahim, John D. Monnier, Stefan Kraus, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Fabien Baron, Theo Ten Brummelaar, Claire L. Davies, Jacob Ennis, Tyler Gardner, Aaron Labdon, Cyprien Lanthermann, Antoine Mérand, Evan Rich, Gail H. Schaefer, Benjamin R. Setterholm

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The Great Dimming of the Hypergiant Star RW Cephei: CHARA Array Images and Spectral Analysis by Narsireddy Anugu, Fabien Baron, Douglas R. Gies, Cyprien Lanthermann, Gail H. Schaefer, Katherine A. Shepard, Theo ten Brummelaar, John D. Monnier, Stefan Kraus, Jean-Baptiste Le Bouquin, Claire L. Davies, Jacob Ennis, Tyler Gardner, Aaron Labdon, Rachael M. Roettenbacher, Benjamin R. Setterholm, Wolfgang Vollmann, Costantino Sigismondi

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Refining the Stellar Parameters of τ Ceti: a Pole-on Solar Analog by Maria Korolik, Rachael M. Roettenbacher, Debra A. Fischer, Stephen R. Kane, Jean M. Perkins, John D. Monnier, Claire L. Davies, Stefan Kraus, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Tyler Gardner, Cyprien Lanthermann, Gail H. Schaefer, Benjamin Setterholm, John M. Brewer, Joe Llama, Lily L. Zhao, Andrew E. Szymkowiak, Gregory W. Henry

“…Additional archival data were obtained from a Tennessee State University Automatic Photometric Telescope and the Mount Wilson Observatory HK project. These new and archival data sets led to improved stellar parameter determinations, including a limb-darkened angular diameter of 2.019 ± 0.012 mas and rotation period of 46 ± 4 days. …”
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Vortex Fiber Nulling for Exoplanet Observations: First Direct Detection of M Dwarf Companions around HIP 21543, HIP 94666, and HIP 50319 by Daniel Echeverri, Jerry W. Xuan, John D. Monnier, Jacques-Robert Delorme, Jason J. Wang, Nemanja Jovanovic, Katelyn Horstman, Garreth Ruane, Bertrand Mennesson, Eugene Serabyn, Dimitri Mawet, J. Kent Wallace, Sofia Hillman, Ashley Baker, Randall Bartos, Benjamin Calvin, Sylvain Cetre, Greg Doppmann, Luke Finnerty, Michael P. Fitzgerald, Chih-Chun Hsu, Joshua Liberman, Ronald López, Maxwell Millar-Blanchaer, Evan Morris, Jacklyn Pezzato, Jean-Baptiste Ruffio, Ben Sappey, Tobias Schofield, Andrew J. Skemer, Ji Wang, Yinzi Xin, Narsireddy Anugu, Sorabh Chhabra, Noura Ibrahim, Stefan Kraus, Gail H. Schaefer, Cyprien Lanthermann

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A Synergic Strategy to Characterize the Habitability Conditions of Exoplanets Hosted by Solar-Type Stars by Raffaele Reda, Raffaele Reda, Maria Pia Di Mauro, Luca Giovannelli, Luca Giovannelli, Tommaso Alberti, Francesco Berrilli, Francesco Berrilli, Enrico Corsaro

“…The method is based on the use of seismic data obtained by the space missions Kepler/K2 and TESS Transiting Exoplanet Survey Satellite, coupled with stellar activity estimates deduced from ground-based campaigns (e.g., Mount Wilson Observatory HK Project). Our investigation allows us to determine not only highly accurate fundamental parameters of the mother star and its orbiting planet, but also to study the stellar magnetic activity and the star-planet interaction: in analogy to the Sun-Earth system, it is possible to infer the mean stellar wind acting on the exoplanet in order to define the conditions of the exoplanetary environment and the erosion of its atmosphere with an impact on the habitability of the planet.…”
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Analysis of magnetic activity cycles in solar analogs using Solar - Stellar Spectrograph data by Doan, Duy Anh N

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AC Her: Evidence of the First Polar Circumbinary Planet by Rebecca G. Martin, Stephen H. Lubow, David Vallet, Narsireddy Anugu, Douglas R. Gies

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Gamma Cas Stars as Be+White Dwarf Binary Systems by Douglas R. Gies, Luqian Wang, Robert Klement

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Sites of Planet Formation in Binary Systems. I. Evidence for Disk−Orbit Alignment in the Close Binary FO Tau by Benjamin M. Tofflemire, Lisa Prato, Adam L. Kraus, Dominique Segura-Cox, G. H. Schaefer, Rachel Akeson, Sean Andrews, Eric L. N. Jensen, Christopher M. Johns-Krull, J. J. Zanazzi, M. Simon

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Star-crossed Lovers DI Tau A and B: Orbit Characterization and Physical Properties Determination by Shih-Yun Tang, Asa G. Stahl, L. Prato, G. H. Schaefer, Christopher M. Johns-Krull, Brian A. Skiff, Charles A. Beichman, Taichi Uyama

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Three-dimensional Orbit of AC Her Determined: Binary-induced Truncation Cannot Explain the Large Cavity in This Post-AGB Transition Disk by Narsireddy Anugu, Jacques Kluska, Tyler Gardner, John D. Monnier, Hans Van Winckel, Gail H. Schaefer, Stefan Kraus, Jean-Baptiste Le Bouquin, Steve Ertel, Antoine Mérand, Robert Klement, Claire L Davies, Jacob Ennis, Aaron Labdon, Cyprien Lanthermann, Benjamin R. Setterholm, Theo ten Brummelaar, Akke Corporaal, Laurence Sabin, Jayadev Rajagopal

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Asteroseismology and Spectropolarimetry of the Exoplanet Host Star λ Serpentis by Travis S. Metcalfe, Derek Buzasi, Daniel Huber, Marc H. Pinsonneault, Jennifer L. van Saders, Thomas R. Ayres, Sarbani Basu, Jeremy J. Drake, Ricky Egeland, Oleg Kochukhov, Pascal Petit, Steven H. Saar, Victor See, Keivan G. Stassun, Yaguang Li, Timothy R. Bedding, Sylvain N. Breton, Adam J. Finley, Rafael A. García, Hans Kjeldsen, Martin B. Nielsen, J. M. Joel Ong, Jakob L. Rørsted, Amalie Stokholm, Mark L. Winther, Catherine A. Clark, Diego Godoy-Rivera, Ilya V. Ilyin, Klaus G. Strassmeier, Sandra V. Jeffers, Stephen C. Marsden, Aline A. Vidotto, Sallie Baliunas, Willie Soon

“…We reanalyze the complete time series of chromospheric activity measurements from the Mount Wilson Observatory, and we present new X-ray and ultraviolet observations from the Chandra and Hubble space telescopes. …”
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2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments by Nemanja Jovanovic, Pradip Gatkine, Narsireddy Anugu, Rodrigo Amezcua-Correa, Ritoban Basu Thakur, Charles Beichman, Chad F. Bender, Jean-Philippe Berger, Azzurra Bigioli, Joss Bland-Hawthorn, Guillaume Bourdarot, Charles M Bradford, Ronald Broeke, Julia Bryant, Kevin Bundy, Ross Cheriton, Nick Cvetojevic, Momen Diab, Scott A Diddams, Aline N Dinkelaker, Jeroen Duis, Stephen Eikenberry, Simon Ellis, Akira Endo, Donald F Figer, Michael P. Fitzgerald, Itandehui Gris-Sanchez, Simon Gross, Ludovic Grossard, Olivier Guyon, Sebastiaan Y Haffert, Samuel Halverson, Robert J Harris, Jinping He, Tobias Herr, Philipp Hottinger, Elsa Huby, Michael Ireland, Rebecca Jenson-Clem, Jeffrey Jewell, Laurent Jocou, Stefan Kraus, Lucas Labadie, Sylvestre Lacour, Romain Laugier, Katarzyna Ławniczuk, Jonathan Lin, Stephanie Leifer, Sergio Leon-Saval, Guillermo Martin, Frantz Martinache, Marc-Antoine Martinod, Benjamin A Mazin, Stefano Minardi, John D Monnier, Reinan Moreira, Denis Mourard, Abani Shankar Nayak, Barnaby Norris, Ewelina Obrzud, Karine Perraut, François Reynaud, Steph Sallum, David Schiminovich, Christian Schwab, Eugene Serbayn, Sherif Soliman, Andreas Stoll, Liang Tang, Peter Tuthill, Kerry Vahala, Gautam Vasisht, Sylvain Veilleux, Alexander B Walter, Edward J Wollack, Yinzi Xin, Zongyin Yang, Stephanos Yerolatsitis, Yang Zhang, Chang-Ling Zou

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Differential Rotation of the Solar Chromosphere: A Century-long Perspective from Kodaikanal Solar Observatory Ca ii K Data by Dibya Kirti Mishra, Srinjana Routh, Bibhuti Kumar Jha, Theodosios Chatzistergos, Judhajeet Basu, Subhamoy Chatterjee, Dipankar Banerjee, Ilaria Ermolli

“…To compare our results to those from other observatories, we have applied our method on a small sample of Ca ii K data from Rome, Meudon, and Mount Wilson observatories, which support our findings from KoSO data. …”
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