| Paper Title |
Page |
Authors |
| Frontmatter |
| |
| Foreword: The Habitable Worlds Observatory in Historical Context |
1 |
Marc Postman and Karl Stapelfeldt |
| Preface |
2 |
Janice C. Lee, Stephanie LaMassa, Marc Postman, and Jessica L. Noviello |
| Part I: HWO Science Development Papers from the Evolution of the Elements Science Working Group |
| |
| Echoes of the First Stars: Massive Star Evolution in Extremely Metal-Poor Environments with the Habitable Worlds Observatory |
3 |
Peter Senchyna, Calum Hawcroft, Miriam Garcia, Aida Wofford, Janice C. Lee, Chris Evans, Ryan J. Rickards Vaught, Macarena G. del Valle-Espinosa, Grace Telford, Fabrice Martins, Göran Ostlin, Médéric Boquien, Paul Scowen, John Ziemer, and Jane Rigby |
| Dust Extinction Beyond the Milky Way |
19 |
R. Paladini, S. Salim, M. Boquien, Y. Choi, M. Hayes, B. Hensley, V. Lebouteiller, and J. Roman-Duval |
| Flash Spectroscopy of Core-Collapse Supernovae with the Habitable Worlds Observatory |
27 |
Jennifer Andrews and Eric Burns |
| The Heavy Element Enrichment History of the Universe |
31 |
Eric Burns and Jennifer Andrews |
| Very Massive Stars with the Habitable Worlds Observatory |
37 |
Fabrice Martins, Aida Wofford, Miriam Garcia, Peter Senchyna, Janice Lee, and Paul A. Scowen |
| Resolving Individual Stars in Nearby Large Galaxies with the Habitable Worlds Observatory |
47 |
Adam Smercina, Tara Fetherolf, Eric W. Koch, Silvia Martocchia, Chris Mihos, Martin M. Roth, and Benjamin F. Williams |
| White Dwarfs as Probes of Extrasolar Planet Compositions and Fundamental Astrophysics |
61 |
Siyi Xu (许偲艺); Martin Barstow; Andy Buchan; Erika Le Bourdais; Patrick Dufour |
| Habitable Worlds Observatory: The Nature of the First Stars |
73 |
Ian U. Roederer; Rana Ezzeddine; Jennifer S. Sobeck |
| Habitable Worlds Observatory: The Nature of the Astrophysical r-process |
79 |
Ian U. Roederer; Rana Ezzeddine |
| Envisioning the Distance Ladder in the Era of the Habitable Worlds Observatory |
85 |
Gagandeep Anand; Meredith Durbin; Rachael Beaton; Joseph B. Jensen; Adam Riess |
| Probing the Variations of Interstellar Dust Abundance and Properties Within and Between Galaxies with HWO UV Spectroscopy in the Local Volume |
97 |
Julia Roman-Duval; Mederic Boquien; Yumi Choi |
| Probing the Full Depth of ISM Properties with a UV-IFU |
111 |
Bethan James; Danielle Berg |
| New Frontiers in the Study of Magnetic Massive Stars with the Habitable Worlds Observatory |
123 |
Alexandre David-Uraz; Véronique Petit; Coralie Neiner; Jean-Claude Bouret; Yaël Nazé; Christiana Erba; Miriam Garcia; Kenneth Gayley; Richard Ignace; Jiři Krtička; Hugues Sana; Nicole St-Louis; Asif ud-Doula |
| Part II: HWO Science Development Papers from the Galaxy Growth Science Working Group |
| |
| The Formation and Evolution of Supermassive Black Holes: IMBH Mass and Spin Functions |
137 |
Jenna M. Cann; Krista Lynne Smith; Francesca Civano; Satyapriya Das; Erin K. S. Hicks; Gagandeep Kaur; Stephanie LaMassa; Jeffrey D. McKaig; Missagh Mehdipour; Gopika SM |
| Imaging the Dusty Torus Around Supermassive Black Holes |
147 |
Varoujan Gorjian; Chris Packham; Erin Hicks; Stephanie La Massa |
| Exploring the Quiescent Black Hole Population of Nearby Dwarf Galaxies with the Habitable World Observatory |
153 |
Fabio Pacucci |
| Deciphering The Launching of Multi-phase AGN-driven Outflows and Their (Spatially Resolved) Multi-scale Impact |
161 |
Lulu Zhang; Gagandeep Kaur; Tianmu Gao; Álvaro Labiano; Erin K. S. Hicks; Vivian U; Chris Packham; Missagh Mehdipour; Travis Fischer; Thaisa Storchi Bergmann; Namrata Roy; Isabel Márquez; Christiaan Boersma |
| Spatially Resolving the Fundamental Elements of Reionization in Galaxies |
169 |
Xinfeng Xu; Stephan McCandliss; Allison Strom; Hsiao-Wen Chen; Yumi Choi; Annalisa Citro; Håkon Dahle; Matthew J. Hayes; Anne Jaskot; Logan Jones; Gagandeep Kaur; Themiya Nanayakkara; Alexandra Le Reste |
| How Do Ionizing Photons Escape from Star-Forming Galaxies? |
179 |
Cody Carr; Renyue Cen; Sophia Flury; M. S. Oey; Stephan McCandliss; Allison Strom |
| Identifying the Contributors to Cosmic Reionization with the Habitable World Observatory: LyC Escape Calibration in Faint Galaxies |
189 |
Annalisa Citro; Claudia. M. Scarlata; Cody A. Carr; Yumi Choi; Sophia R. Flury; Matthew J. Hayes; Anne Jaskot; Gagandeep Kaur; Alexandra Le Reste; Matilde Mingozzi; Themiya Nanayakkara; Sally Oey |
| Evolution of the Ionizing Photon Luminosity Function |
199 |
Stephan R. McCandliss; Swara Ravindranath; Sangeeta Malhotra; Chris Packham; Sophia Flury; Alexandra Le Reste; Allison Strom; Marc Postman; John O’Meara |
| Dark Matter through Dwarf Satellite Galaxies in Milky-Way Analogue Galaxies in the Local Universe |
209 |
Jessica E. Doppel; Ethan O. Nadler; Leonidas Moustakas; Mathilde Jauzac; Richard Massey |
| Habitable Worlds Observatory: Strong Lensing Constraints on Dark Matter Halo Mass Function down to 107 M⊙ |
221 |
Qiuhan He; David Lagattuta; Mathilde Jauzac; Tansu Daylan; Richard Massey; Jason Rhodes; Jessica E. Doppel; Leonidas Moustakas; Alina Kiessling; Russell Smith; Stephane Werner; James Nightingale; Maximilian von Wietersheim-Kramsta; Satyapriya Das |
| Characterizing Gas Flows Through Observations of the Disk-Circumgalactic Medium Interface with the Habitable Worlds Observatory |
233 |
Sanchayeeta Borthakur; Joseph N. Burchett; Frances Cashma; Andrew J. Fox; Yong Zheng; David M. French; Rongmon Bordoloi; Brad Koplitz |
| Mapping Galactic Winds and Small-scale Structure in the Circumgalactic Medium with Habitable Worlds Observatory |
251 |
Joseph N. Burchett; Deborah M. Lokhorst; Yakov Faerman; Kevin France; Kate H. R. Rubin; David S. N. Rupke; Sanchayeeta Borthakur |
| Active Galactic Nuclei Feedback Effects on the Intergalactic Medium |
267 |
Megan T. Tillman; Joseph N. Burchett; Blakesley Burkhart; Vikram Khaire; Sanchayeeta Borthakur |
| Part III: HWO Science Development Papers from the Living Worlds Science Working Group |
| |
| The Search for Life on Potentially Habitable Exoplanets |
279 |
Giada Arney; Niki Parenteau; Natalie Hinkel; Eric Mamajek; Joshua Krissansen-Totton; Stephanie Olson; Edward Schwieterman; Sara Walker; Kevin Fogarty; Ravi Kopparapu; Jacob Lustig-Yaeger; Mark Moussa; Sukrit Ranjan; Garima Singh; Clara Sousa-Silva; Maxwell Frissell; Samantha Gilbert-Janziek; Vincent Kofman; Natasha Latouf; Mary Anne Limbach; Rhonda Morgan; Christopher Stark; Armen Tokadjian; Anna Grace Ulses; Nicholas Wogan; Mike Wong; Amber Young |
| Testing Origin-of-Life Theories with the Habitable Worlds Observatory |
305 |
Sukrit Ranjan; Martin Schlecker; Nicholas Wogan; Michael Won |
| Prebiosignatures with the Habitable Worlds Observatory |
309 |
Sukrit Ranjan; Danica Adams; Michael Wong; Martin Schlecker; Nicholas Wogan; Jessica M. Weber |
| Technosignatures |
317 |
Ravikumar Kopparapu; Svetlana Berdyugina; Jacob Haqq-Misra; Thomas Beatty; Vincent Kofman; Nick Siegler; Eddie Schwieterman |
| Searching for Life as We Don’t Know It: Detecting Signatures of Planetary-scale Complexity in Exoplanet Atmospheric Spectra |
325 |
Sara Walker; Estelle Janin; Evgenya Shkolnik; Louie Slocombe |
| Detecting Alien Living Worlds and Photosynthetic Life using Imaging Polarimetry with the HWO Coronagraph |
331 |
Svetlana Berdyugina; Lucas Patty; Jonathan Grone; Brice Demory; Kim Bott; Vincent Kofman; Giulia Roccetti; Kenneth Goodis Gordon; Frans Snik; Theodora Karalidi; Victor Trees; Daphne Stam; Mary N. Parenteau |
| Geochemical Habitability |
353 |
Kara Brugman; Christy Till |
| Testing False Positive Biosignature Scenarios with the Habitable Worlds Observatory |
357 |
Edward W. Schwieterman; Joshua Krissansen-Totton; Jacob Lustig-Yaeger; Sukrit Ranjan; Natalie Hinkel; Eric Mamajek; Giada Arney; Ravi Kopparapu; Victoria Meadows; Stephanie Olson; Niki Parenteau; the Living Worlds Authors |
| Masses of Potentially Habitable Planets Characterized by the Habitable Worlds Observatory |
365 |
Kaz Gary; B. Scott Gaudi; Eduardo Bendek; Ty Robinson; Renyu Hu; Breann Sitarski; Aki Roberge; Eric Mamajek |
| Breathing Worlds: Leveraging Seasonality for Exo-Earth Biosphere Characterization with HWO |
377 |
Émilie A. Laflèche; Anna Grace Ulses; Samantha Gilbert-Janizek; Jonathan Jernigan; Nicholas Wogan; Michael D. Himes; Stephanie L. Olson; Edward W. Schwieterman; Mary N. Parenteau; Joshua Krissansen-Totton; Avi Mandell |
| Living Worlds Working Group: Surface Biosignatures on Potentially Habitable Exoplanets |
393 |
Niki Parenteau; Anna Grace Ulses; Connor Metz; Nancy Y. Kiang; Ligia Coelho; Edward Schwieterman; Jonathan Grone; Giulia Roccetti; Svetlana Berdyugina; Eleonora Alei; Lucas Patty; Emilie Lafleche; Taro Matsuo; Dawn Cardace; Schuyler Borges; Avi Mandel; Kenneth Gordon; Joshua Krissansen-Totton; Giada Arney; Bill Philpot; Jacob Lustig-Yeager; Stephanie Olson; Marc Neveu; José A. Caballero; Yuka Fujii; William Sparks; Ludmila Carone; Mariano Battistuzzi; Daniel Whitt |
| Part IV: HWO Science Development Papers from the Solar Systems in Context Science Working Group |
| |
| Assessing Ocean World Habitability with HWO |
411 |
R. J. Cartwright; L. C. Quick; M. Neveu; T. M. Becker; J. C. Castillo-Rogez; K. France; S. Kameda; A. Roberge; U. Raut; K. L. Craft; M. W. McElwain; G. Sweetak; B. N. Sitarski; L. C. Mayorga; J. Lustig-Yaeger; G. L. Villanueva |
| Probing the Origin of Water in Planets within Habitable Zones with HWO |
425 |
Yasuhiro Hasegawa; Courtney Dressing; Ludmila Carone |
| Identifying Rocky Planets and Water Worlds Among Sub-Neptune-sized Exoplanets with the Habitable Worlds Observatory |
429 |
Renyu Hu; Michiel Min; Max Millar-Blanchaer; Jacob Lustig-Yaeger; Tyler Robinson; Jennifer Burt; Athena Coustenis; Mario Damiano; Chuanfei Dong; Courtney Dressing; Luca Fossati; Stephen Kane; Soumil Kelkar; Tim Lichtenberg; Jean-Baptiste Ruffio; Dibyendu Sur; Armen Tokadjian; Martin Turbet |
| Detecting Surface Liquid Water on Exoplanets |
439 |
Jacob Lustig-Yaeger; Nicolas B. Cowan; Renyu Hu; L. C. Mayorga; Tyler D. Robinson |
| Venus Direct Observation with the Habitable World Observatory |
449 |
Noam R. Izenberg; Tyler Robinson; Courtney Dressing; Michael McElwain; Giada Arney; Stephen R. Kane; Colby Ostberg; Jacob Lustig-Yaeger; Richard Cartwright; Chloe Beddingfield |
| The Role of Stellar Multiplicity in the Prevalence of Small, Cool Planets |
457 |
Elisabeth Newton; Malena Rice; Kendall Sullivan; Jessie Christiansen; Sarah Blunt; Sabina Sagynbayeva |
| Solar System Origins |
463 |
Kathy E. Mandt; John Noonan; Darryl Seligman; Sarah Anderson; Olga Pinto Harrington; Richard Cartwright; Maria Womack |
| Studying Protoplanets and Protoplanetary Disks with the Habitable Worlds Observatory |
467 |
Bin B. Ren (任彬) |
| Debris Disks and their Properties with the Habitable Worlds Observatory |
477 |
Isabel Rebollido; Yasuhiro Hasegawa; Meredith MacGregor; Bin Ren; Mark Booth; Jonathan Marshall; Courtney Dressing; Patricia Luppe |
| Exoplanet Atmospheric Escape Observations with the Habitable Worlds Observatory |
483 |
Leonardo A. Dos Santos, Eric D. Lopez, Luca Fossati, Antonio García Muñoz, Shingo Kameda, Munazza K. Alam, Keighley Rockcliffe, Seth Redfield, Yuichi Ito, Joshua Lothringer, Shreyas Vissapragada, Hannah R. Wakeford, Apurva V. Oza, Girish M. Duvvuri, Raissa Estrela, Ryoya Sakata, Chuanfei Dong, and Ziyu Huang |
| Direct Imaging Characterization of Cool Gaseous Planets |
493 |
Michiel Min, Jo Barstow, Laura C. Mayorga, Hannah Wakeford, Jason Wang, Renyu Hu, Beth Biller, José A. Caballero, Ludmila Carone, Sarah Casewell, Katy L. Chubb, Mario Damiano, Siddharth Gandhi, Antonio García Muñoz, Christiane Helling, Finnegan Keller, Nataliea Lowson, Evert Nasedkin, Ryan MacDonald, Jean-Baptiste Ruffio, Evgenya Shkolnik, and Christopher C. Stark |
| Characterizing the Dynamics and Chemistry of Transiting Exoplanets with the Habitable World Observatory |
508 |
Hannah R. Wakeford, Laura C. Mayorga, Joanna K. Barstow, Natasha E. Batalha, Ludmila Carone, Sarah L. Casewell, Theodora Karalidi, Tiffany Kataria, Erin M. May, and Michiel Min |
| Identifying Cold Ocean Planets and Characterizing Their Geologic Activity |
521 |
Lynnae Quick, Jessica L. Noviello, and Apurva V. Oza |
| Detecting and Characterizing Venus Analogs Orbiting Other Stars with the Habitable Worlds Observatory |
529 |
Stephen R. Kane|Emma L. Miles|Colby M. Ostberg|Noam R. Izenberg|Sarah Blunt|Jessie Christiansen|Tansu Daylan|Courtney Dressing|Luca Fossati|Antonio Garcia Munoz|Kenneth Goodis Gordon|Caleb Harada|Renyu Hu|Ludmila Carone|Eric Nielsen|Elisabeth Newton|Malena Rice|Sabina Sagynbayeva|Christopher Stark|Peter Woitke |
| Characterizing Exozodis in Scattered Light |
535 |
John H. Debes, Steve Ertel, William C. Danchi, Yasuhiro Hasegawa, Isa Rebollido, Ramya Anche, Virginie Faramaz, Mark Wyatt, and Max Millar-Blanchaer |
| High-resolution Ultraviolet-to-Near-Infrared Characterization of Exoplanet Atmospheres with HWO |
545 |
Patricio E. Cubillos, Matteo Brogi, Antonio García Muñoz, Luca Fossati, Jasmina Blecic, Sudeshna Boro Saikia, Vincent Bourrier, Jose A. Caballero, Juan Cabrera,, Andrea Chiavassa, Andrzej Fludracc, Leonardos Gkouveliscc, John Lee Grenfellcc, Manuel Guedelcc, Gopal Hazracc, Alvaro Labianoc, Monika Lendl, Donna Rodgers-Lee, Arnaud Salvador,, Ilane Schroetter, Antoine Strugarek, Benjamin Taysum, Aline Vidotto, and Thomas G. Wilson |
| Study of the Atmospheric Effects of Energetic Particle Precipitations on Giant Planets With the Habitable World Observatory |
557 |
J-Y. Chaufray, W. Dunn, L. N. Fletcher, L. Fossati, M. Galand, L. Gkouvelis, C. M. Jackmann, L. Lamy, and L. Roth |
| Detecting and Characterising the Magnetic Field of Exoplanets |
565 |
A. Strugarek, S. V. Berdyugina, V. Bourrier, J. A. Caballero, J. J. Chebly, R. Fares, A. Fludra, L. Fossati, A. García Muñoz, L. Gkouvelis, C. Gourvès, J. L. Grenfell, R. D. Kavanagh, K. G. Kislyakova, L. Lamy, A. F. Lanza, C. Moutou, D. Nandy, C. Neiner, A. Oklopčić, A. Paul, V. Réville, D. Rodgers-Lee, E. L. Shkolnik, J. D. Turner, A. A. Vidotto, F. Yang, and P. Zarka |
| Exploring Solar System Giant Planets with Habitable Worlds Observatory |
575 |
Leigh N. Fletcher, Amy Simon, Michael H. Wong, Jonathan D. Nichols, Nick A. Teanby, Conor A. Nixon, and Marina Galand |
| Utilizing Habitable Worlds Observatory for Planetary Defense |
587 |
Jessie Dotson, Andrew S. Rivkin, Cristina Thomas, Geronimo Villanueva, Davide Farnocchia, Steven Chesley, and Jessica L. Noviello |
| Detection of Amino Acids in Comets |
591 |
Ana I. Gómez de Castro and Ana I. de Isidro-Gómez |
| Investigating the Role of Magnetic Fields in Shaping Young Planetary Systems with the Habitable Worlds Observatory and the POLLUX Spectropolarimeter |
597 |
Ana I. Gómez de Castro, Evelyne Alecian, Silvia H. P. Alencar, M. Audard, Jean-Claude Bouret, Ada Canet, Catherine Espaillat, Kevin France, Eleanora Fiorellino, Gregory Herczeg, Ignacio Mendigutía, Christian Scheneider, Aurora Sicilia-Aguilar, Juan C Vallejo, and Bonnie Zaire |
