Smithsonian Digital Repository: Recent submissions

  • Hidden in the Dark: A Review of Galagid Systematics and Phylogenetics 
    Penna, Anna; Pozzi, Luca (2024)
  • Unfurling an improved method for visualizing mitotic chromosomes in ferns 
    Ramirez-Castillo, Rosa; Palma-Rojas, Claudio; Seguel, Pedro Jara; Grusz, Amanda L.; Araya-Jaime, Cristian (2024)
    Premise: Cytotaxonomy employs chromosome visualization to study organismal relationships and evolution. Despite the critical value of cytogenetic data, cytotypes are lacking for many plant groups. Here, we present an ...
  • Comparison of Polarized Radiative Transfer Codes Used by the EHT Collaboration 
    Prather, Ben S.; Dexter, Jason; Moscibrodzka, Monika; Pu, Hung-Yi; Bronzwaer, Thomas; Davelaar, Jordy; Younsi, Ziri; Gammie, Charles F.; Gold, Roman; Wong, George N.; Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Algaba, Juan Carlos; Anantua, Richard; Asada, Keiichi; Azulay, Rebecca; Bach, Uwe; Baczko, Anne-Kathrin; Ball, David; Balokovic, Mislav; Barrett, John; Bauböck, Michi; Benson, Bradford A.; Bintley, Dan; Blackburn, Lindy; Blundell, Raymond; Bouman, Katherine L.; Bower, Geoffrey C.; Boyce, Hope; Bremer, Michael; Brinkerink, Christiaan D.; Brissenden, Roger; Britzen, Silke; Broderick, Avery E.; Broguiere, Dominique; Bustamante, Sandra; Byun, Do-Young; Carlstrom, John E.; Ceccobello, Chiara; Chael, Andrew; Chan, Chi-kwan; Chang, Dominic O.; Chatterjee, Koushik; Chatterjee, Shami; Chen, Ming-Tang; Chen, Yongjun; Cheng, Xiaopeng; Cho, Ilje; Christian, Pierre; Conroy, Nicholas S.; Conway, John E.; Cordes, James M.; Crawford, Thomas M.; Crew, Geoffrey B.; Cruz-Osorio, Alejandro; Cui, Yuzhu; De Laurentis, Mariafelicia; Deane, Roger; Dempsey, Jessica; Desvignes, Gregory; Dhruv, Vedant; Doeleman, Sheperd S.; Dougal, Sean; Dzib, Sergio A.; Eatough, Ralph P.; Emami, Razieh; Falcke, Heino; Farah, Joseph; Fish, Vincent L.; Fomalont, Ed; Ford, H. Alyson; Fraga-Encinas, Raquel; Freeman, William T.; Friberg, Per; Fromm, Christian M.; Fuentes, Antonio; Galison, Peter; García, Roberto; Gentaz, Olivier; Georgiev, Boris; Goddi, Ciriaco; Gómez-Ruiz, Arturo I.; Gómez, José L.; Gu, Minfeng; Gurwell, Mark; Hada, Kazuhiro; Haggard, Daryl; Haworth, Kari; Hecht, Michael H.; Hesper, Ronald; Heumann, Dirk; Ho, Luis C.; Ho, Paul; Honma, Mareki; Huang, Chih-Wei L.; Huang, Lei; Hughes, David H.; Ikeda, Shiro; Impellizzeri, C. M. Violette; Inoue, Makoto; Issaoun, Sara; James, David J.; Jannuzi, Buell T.; Janssen, Michael; Jeter, Britton; Jiang, Wu; Jiménez-Rosales, Alejandra; Johnson, Michael D.; Jorstad, Svetlana; Joshi, Abhishek V.; Jung, Taehyun; Karami, Mansour; Karuppusamy, Ramesh; Kawashima, Tomohisa; Keating, Garrett K.; Kettenis, Mark; Kim, Dong-Jin; Kim, Jae-Young; Kim, Jongsoo; Kim, Junhan; Kino, Motoki; Koay, Jun Yi; Kocherlakota, Prashant; Kofuji, Yutaro; Koyama, Shoko; Kramer, Carsten; Kramer, Michael; Krichbaum, Thomas P.; Kuo, Cheng-Yu; La Bella, Noemi; Lauer, Tod R.; Lee, Daeyoung; Lee, Sang-Sung; Leung, Po Kin; Levis, Aviad; Li, Zhiyuan; Lico, Rocco; Lindahl, Greg; Lindqvist, Michael; Lisakov, Mikhail; Liu, Jun; Liu, Kuo; Liuzzo, Elisabetta; Lo, Wen-Ping; Lobanov, Andrei P.; Loinard, Laurent; Lonsdale, Colin J.; Lu, Ru-Sen; MacDonald, Nicholas R.; Mao, Jirong; Marchili, Nicola; Markoff, Sera; Marrone, Daniel P.; Marscher, Alan P.; Martí-Vidal, Iván; Matsushita, Satoki; Matthews, Lynn D.; Medeiros, Lia; Menten, Karl M.; Michalik, Daniel; Mizuno, Izumi; Mizuno, Yosuke; Moran, James M.; Moriyama, Kotaro; Müller, Cornelia; Mus, Alejandro; Musoke, Gibwa; Myserlis, Ioannis; Nadolski, Andrew; Nagai, Hiroshi; Nagar, Neil M.; Nakamura, Masanori; Narayan, Ramesh; Narayanan, Gopal; Natarajan, Iniyan; Nathanail, Antonios; Fuentes, Santiago Navarro; Neilsen, Joey; Neri, Roberto; Ni, Chunchong; Noutsos, Aristeidis; Nowak, Michael A.; Oh, Junghwan; Okino, Hiroki; Olivares, Héctor; Ortiz-León, Gisela N.; Oyama, Tomoaki; Özel, Feryal; Palumbo, Daniel C. M.; Paraschos, Georgios Filippos; Park, Jongho; Parsons, Harriet; Patel, Nimesh; Pen, Ue-Li; Pesce, Dominic W.; Piétu, Vincent; Plambeck, Richard; PopStefanija, Aleksandar; Porth, Oliver; Pötzl, Felix M.; Preciado-López, Jorge A.; Psaltis, Dimitrios; Ramakrishnan, Venkatessh; Rao, Ramprasad; Rawlings, Mark G.; Raymond, Alexander W.; Rezzolla, Luciano; Ricarte, Angelo; Ripperda, Bart; Roelofs, Freek; Rogers, Alan; Ros, Eduardo; Romero-Cañizales, Cristina; Roshanineshat, Arash; Rottmann, Helge; Roy, Alan L.; Ruiz, Ignacio; Ruszczyk, Chet; Rygl, Kazi L. J.; Sánchez, Salvador; Sánchez-Argüelles, David; Sánchez-Portal, Miguel; Sasada, Mahito; Satapathy, Kaushik; Savolainen, Tuomas; Schloerb, F. Peter; Schonfeld, Jonathan; Schuster, Karl-Friedrich; Shao, Lijing; Shen, Zhiqiang; Small, Des; Sohn, Bong Won; SooHoo, Jason; Souccar, Kamal; Sun, He; Tazaki, Fumie; Tetarenko, Alexandra J.; Tiede, Paul; Tilanus, Remo P. J.; Titus, Michael; Torne, Pablo; Traianou, Efthalia; Trent, Tyler; Trippe, Sascha; Turk, Matthew; van Bemmel, Ilse; van Langevelde, Huib Jan; van Rossum, Daniel R.; Vos, Jesse; Wagner, Jan; Ward-Thompson, Derek; Wardle, John; Weintroub, Jonathan; Wex, Norbert; Wharton, Robert; Wielgus, Maciek; Wiik, Kaj; Witzel, Gunther; Wondrak, Michael F.; Wu, Qingwen; Yamaguchi, Paul; Yfantis, Aristomenis; Yoon, Doosoo; Young, André; Young, Ken; Yu, Wei; Yuan, Feng; Yuan, Ye-Fei; Zensus, J. Anton; Zhang, Shuo; Zhao, Guang-Yao; Zhao, Shan-Shan; Event Horizon Telescope Collaboration (2023)
    Interpretation of resolved polarized images of black holes by the Event Horizon Telescope (EHT) requires predictions of the polarized emission observable by an Earth-based instrument for a particular model of the black ...
  • Alignment of dense molecular core morphology and velocity gradients with ambient magnetic fields 
    Pandhi, A.; Friesen, R. K.; Fissel, L.; Pineda, J. E.; Caselli, P.; Chen, M. C. -Y; Di Francesco, J.; Ginsburg, A.; Kirk, H.; Myers, P. C.; Offner, S. S. R.; Punanova, A.; Quan, F.; Redaelli, E.; Rosolowsky, E.; Scibelli, S.; Seo, Y. M.; Shirley, Y. (2023)
    Studies of dense core morphologies and their orientations with respect to gas flows and the local magnetic field have been limited to only a small sample of cores with spectroscopic data. Leveraging the Green Bank Ammonia ...
  • Origin and Extent of the Opacity Challenge for Atmospheric Retrievals of WASP-39 b 
    Niraula, Prajwal; de Wit, Julien; Gordon, Iouli E.; Hargreaves, Robert J.; Sousa-Silva, Clara (2023)
    As the James Webb Space Telescope (JWST) came online last summer, we entered a new era of astronomy. This new era is supported by data products of unprecedented information content that require novel reduction and analysis ...
  • Digging into the Interior of Hot Cores with ALMA: Spiral Accretion into the High-mass Protostellar Core G336.01-0.82 
    Olguin, Fernando A.; Sanhueza, Patricio; Chen, Huei-Ru Vivien; Lu, Xing; Oya, Yoko; Zhang, Qizhou; Ginsburg, Adam; Taniguchi, Kotomi; Li, Shanghuo; Morii, Kaho; Sakai, Takeshi; Nakamura, Fumitaka (2023)
    We observed the high-mass star-forming core G336.01-0.82 at 1.3 mm and 0.?05 (~150 au) angular resolution with the Atacama Large Millimeter/submillimeter Array (ALMA) as part of the Digging into the Interior of Hot Cores ...
  • The Factory and the Beehive. V. Chromospheric and Coronal Activity and Its Dependence on Rotation in Praesepe and the Hyades 
    Núñez, Alejandro; Agüeros, Marcel A.; Curtis, Jason L.; Covey, Kevin R.; Douglas, Stephanie T.; Chu, Sabine R.; DeLaurentiis, Stanislav; Wang, Minzhi (Luna); Drake, Jeremy J. (2024)
    Low-mass (?1.2 M <sub>?</sub>) main-sequence stars lose angular momentum over time, leading to a decrease in their magnetic activity. The details of this rotation–activity relation remain poorly understood, however. Using ...
  • Resonant scattering of the O VII X-ray emission line in the circumgalactic medium of TNG50 galaxies 
    Nelson, Dylan; Byrohl, Chris; Ogorzalek, Anna; Markevitch, Maxim; Khabibullin, Ildar; Churazov, Eugene; Zhuravleva, Irina; Bogdan, Akos; Chakraborty, Priyanka; Kilbourne, Caroline; Kraft, Ralph; Pillepich, Annalisa; Sarkar, Arnab; Schellenberger, Gerrit; Su, Yuanyuan; Truong, Nhut; Vladutescu-Zopp, Stephan; Wijers, Nastasha (2023)
    We study the impact of resonantly scattered X-ray line emission on the observability of the hot circumgalactic medium (CGM) of galaxies. We apply a Monte Carlo radiative transfer post-processing analysis to the high-resolution ...
  • Macroecological patterns of functional and phylogenetic diversity vary between ground and arboreal assemblages in Neotropical savanna ants 
    Neves, Karen C.; Andersen, Alan N.; Schultz, Ted R.; Vasconcelos, Heraldo L. (2024)
    Macroscale environmental gradients can have contrasting effects on organisms that occupy different vertical niches, but we have little understanding of how this might result in different macroscale diversity patterns in ...
  • Global Formaldehyde Products From the Ozone Mapping and Profiler Suite (OMPS) Nadir Mappers on Suomi NPP and NOAA-20 
    Nowlan, Caroline R.; González Abad, Gonzalo; Kwon, Hyeong-Ahn; Ayazpour, Zolal; Chan Miller, Christopher; Chance, Kelly; Chong, Heesung; Liu, Xiong; O'Sullivan, Ewan; Wang, Huiqun; Zhu, Lei; De Smedt, Isabelle; Jaross, Glen; Seftor, Colin; Sun, Kang (2023)
    We describe new publicly available, multi-year formaldehyde (HCHO) data records from the Ozone Mapping and Profiler Suite (OMPS) nadir mapper (NM) instruments on the Suomi NPP and NOAA-20 satellites. The OMPS-NM instruments ...
  • ESPRESSO Observations of Gaia BH1: High-precision Orbital Constraints and no Evidence for an Inner Binary 
    Nagarajan, Pranav; El-Badry, Kareem; Triaud, Amaury H. M. J.; Baycroft, Thomas A.; Latham, David; Bieryla, Allyson; Buchhave, Lars A.; Rix, Hans-Walter; Quataert, Eliot; Howard, Andrew; Isaacson, Howard; Hobson, Melissa J. (2024)
    We present high-precision radial velocity observations of Gaia BH1, the nearest known black hole (BH). The system contains a solar-type G star orbiting a massive dark companion, which could be either a single BH or an inner ...
  • Can Protostellar Outflows Set Stellar Masses? 
    Myers, Philip C.; Dunham, Michael M.; Stephens, Ian W. (2023)
    The opening angles of some protostellar outflows appear too narrow to match the expected core-star mass efficiency (SFE) = 0.3-0.5, if the outflow cavity volume traces outflow mass, with a conical shape and a maximum opening ...
  • The inclusion of the MT_CKD water vapor continuum model in the HITRAN molecular spectroscopic database 
    Mlawer, E. J.; Cady-Pereira, K. E.; Mascio, J.; Gordon, Iouli E. (2023)
    Atmospheric radiative transfer calculations require information about the spectral absorption properties of all relevant gases in the atmospheric path. For years, much of the atmospheric community has relied on the HITRAN ...
  • The ALMA Survey of 70 µm Dark High-mass Clumps in Early Stages (ASHES). IX. Physical Properties and Spatial Distribution of Cores in IRDCs 
    Morii, Kaho; Sanhueza, Patricio; Nakamura, Fumitaka; Zhang, Qizhou; Sabatini, Giovanni; Beuther, Henrik; Lu, Xing; Li, Shanghuo; Garay, Guido; Jackson, James M.; Olguin, Fernando A.; Tafoya, Daniel; Tatematsu, Ken'ichi; Izumi, Natsuko; Sakai, Takeshi; Silva, Andrea (2023)
    The initial conditions found in infrared dark clouds (IRDCs) provide insights on how high-mass stars and stellar clusters form. We have conducted high-angular resolution and high-sensitivity observations toward thirty-nine ...
  • VISIONS: the VISTA Star Formation Atlas. I. Survey overview 
    Meingast, Stefan; Alves, João; Bouy, Hervé; Petr-Gotzens, Monika G.; Fürnkranz, Verena; Großschedl, Josefa E.; Hernandez, David; Rottensteiner, Alena; Arnaboldi, Magda; Ascenso, Joana; Bayo, Amelia; Brändli, Erik; Brown, Anthony G. A.; Forbrich, Jan; Goodman, Alyssa; Hacar, Alvaro; Hasenberger, Birgit; Köhler, Rainer; Kubiak, Karolina; Kuhn, Michael; Lada, Charles; Leschinski, Kieran; Lombardi, Marco; Mardones, Diego; Mascetti, Laura; Miret-Roig, Núria; Moitinho, André; Mužic, Koraljka; Piecka, Martin; Posch, Laura; Prusti, Timo; Peña Ramírez, Karla; Ramlau, Ronny; Ratzenböck, Sebastian; Sacco, Germano; Swiggum, Cameren; Teixeira, Paula Stella; Urban, Vanessa; Zari, Eleonora; Zucker, Catherine (2023)
    VISIONS is an ESO public survey of five nearby (d <sub>S</sub> (2.15 µm). With a total on-sky exposure time of 49.4h VISIONS covers an area of 650 deg<sup>2</sup>, it is designed to build an infrared legacy archive with a ...
  • Natural products from Caribbean octocorals demonstrate bioactivity against <i>Vibrio coralliilyticus</i> strains 
    Monti, M.; Giorgi, A.; Paul, Valerie J.; Gunasekera, Sarath P.; Houk, L. Jay; Dugan, Carle; Demarco, Tommy; Olson, J. B. (2024)
    Caribbean coral reefs are currently facing a rapid decline caused by a plethora of threats including disease outbreaks. Octocorals appear to be unaffected by the majority of diseases impacting scleractinian corals, including ...
  • High Tide or Riptide on the Cosmic Shoreline? A Water-rich Atmosphere or Stellar Contamination for the Warm Super-Earth GJ 486b from JWST Observations 
    Moran, Sarah E.; Stevenson, Kevin B.; Sing, David K.; MacDonald, Ryan J.; Kirk, James; Lustig-Yaeger, Jacob; Peacock, Sarah; Mayorga, L. C.; Bennett, Katherine A.; López-Morales, Mercedes; May, E. M.; Rustamkulov, Zafar; Valenti, Jeff A.; Adams Redai, Jéa I.; Alam, Munazza K.; Batalha, Natasha E.; Fu, Guangwei; Gonzalez-Quiles, Junellie; Highland, Alicia N.; Kruse, Ethan; Lothringer, Joshua D.; Ortiz Ceballos, Kevin N.; Sotzen, Kristin S.; Wakeford, Hannah R. (2023)
    Planets orbiting M-dwarf stars are prime targets in the search for rocky exoplanet atmospheres. The small size of M dwarfs renders their planets exceptional targets for transmission spectroscopy, facilitating atmospheric ...
  • Most-likely DCF Estimates of Magnetic Field Strength 
    Myers, Philip C.; Stephens, Ian W.; Coudé, Simon (2024)
    The Davis–Chandrasekhar–Fermi (DCF) method is widely used to evaluate magnetic fields in star-forming regions. Yet it remains unclear how well DCF equations estimate the mean plane-of-the-sky field strength in a map region. ...
  • Asteroseismology and Spectropolarimetry of the Exoplanet Host Star ? Serpentis 
    Metcalfe, Travis S.; Buzasi, Derek; Huber, Daniel; Pinsonneault, Marc H.; van Saders, Jennifer L.; Ayres, Thomas R.; Basu, Sarbani; Drake, Jeremy J.; Egeland, Ricky; Kochukhov, Oleg; Petit, Pascal; Saar, Steven H.; See, Victor; Stassun, Keivan G.; Li, Yaguang; Bedding, Timothy R.; Breton, Sylvain N.; Finley, Adam J.; García, Rafael A.; Kjeldsen, Hans; Nielsen, Martin B.; Ong, J. M. Joel; Rørsted, Jakob L.; Stokholm, Amalie; Winther, Mark L.; Clark, Catherine A.; Godoy-Rivera, Diego; Ilyin, Ilya V.; Strassmeier, Klaus G.; Jeffers, Sandra V.; Marsden, Stephen C.; Vidotto, Aline A.; Baliunas, Sallie; Soon, Willie (2023)
    The bright star ? Ser hosts a hot Neptune with a minimum mass of 13.6 M <sub>?</sub> and a 15.5 day orbit. It also appears to be a solar analog, with a mean rotation period of 25.8 days and surface differential rotation ...
  • Evidence of a Massive Stellar Disruption in the X-Ray Spectrum of ASASSN-14li 
    Miller, Jon M.; Mockler, Brenna; Ramirez-Ruiz, Enrico; Draghis, Paul A.; Drake, Jeremy J.; Raymond, John; Reynolds, Mark T.; Xiang, Xin; Yun, Sol Bin; Zoghbi, Abderahmen (2023)
    The proximity and duration of the tidal disruption event ASASSN-14li led to the discovery of narrow, blueshifted absorption lines in X-rays and UV. The gas seen in X-ray absorption is consistent with bound material close ...

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