Smithsonian Digital Repository: Recent submissions

  • Stellar rotations and the disentanglement of the Galactic thin and thick discs 
    da Silva, M. P.; Alves-Brito, A.; do Nascimento, J. D. (2024)
    The kinematics, mean a-elements, and ages of the stars reveal two distinct disc populations observed in the Solar neighbourhood. Although several studies have been carried out to characterize abundances of chemical elements ...
  • Embryonic heart rate is higher in species that experience greater nest predation risk during incubation 
    Di Giovanni, Alexander J.; Jones, Todd M.; Benson, Thomas J.; Ward, Michael P. (2024)
    Avian eggs develop outside of the female body, and therefore embryonic development is subject to multiple internal (physiological) and external (ecological) factors. Embryonic developmental rate has important consequences ...
  • Astronomical CH<sub>3</sub><sup>+</sup> rovibrational assignments. A combined theoretical and experimental study validating observational findings in the d203-506 UV-irradiated protoplanetary disk 
    Changala, P. Bryan; Chen, Ning L.; Le, Hai L.; Gans, Bérenger; Steenbakkers, Kim; Salomon, Thomas; Bonah, Luis; Schroetter, Ilane; Canin, Amélie; Martin-Drumel, Marie-Aline; Jacovella, Ugo; Dartois, Emmanuel; Boyé-Péronne, Séverine; Alcaraz, Christian; Asvany, Oskar; Brünken, Sandra; Thorwirth, Sven; Schlemmer, Stephan; Goicoechea, Javier R.; Rouillé, Gaël; Sidhu, Ameek; Chown, Ryan; Van De Putte, Dries; Trahin, Boris; Alarcón, Felipe; Berné, Olivier; Habart, Emilie; Peeters, Els (2023)
    Context. The methyl cation (CH<sub>3</sub><sup>+</sup>) has recently been discovered in the interstellar medium through the detection of 7 µm (1400 cm<sup>-1</sup>) features toward the d203-506 protoplanetary disk by the ...
  • The POKEMON Speckle Survey of Nearby M Dwarfs. II. Observations of 1125 Targets 
    Clark, Catherine A.; van Belle, Gerard T.; Horch, Elliott P.; Lund, Michael B.; Ciardi, David R.; von Braun, Kaspar; Winters, Jennifer G.; Everett, Mark E.; Hartman, Zachary D.; Llama, Joe (2024)
    Stellar multiplicity is correlated with many stellar properties, yet multiplicity measurements have proven difficult for the M dwarfs-the most common type of star in our galaxy-due to their faintness and the fact that a ...
  • Discovery of the Magellanic Stellar Stream Out to 100 kpc 
    Chandra, Vedant; Naidu, Rohan P.; Conroy, Charlie; Bonaca, Ana; Zaritsky, Dennis; Cargile, Phillip A.; Caldwell, Nelson; Johnson, Benjamin D.; Han, Jiwon Jesse; Ting, Yuan-Sen (2023)
    The Magellanic Stream (MS)-an enormous ribbon of gas spanning 140° of the southern sky trailing the Magellanic Clouds-has been exquisitely mapped in the five decades since its discovery. However, despite concerted efforts, ...
  • OGLE-2019-BLG-1180Lb: Discovery of a Wide-orbit Jupiter-mass Planet around a Late-type Star 
    Chung, Sun-Ju; Udalski, Andrzej; Yee, Jennifer C.; Gould, Andrew; Albrow, Michael D.; Jung, Youn Kil; Hwang, Kyu-Ha; Han, Cheongho; Ryu, Yoon-Hyun; Shin, In-Gu; Shvartzvald, Yossi; Yang, Hongjing; Zang, Weicheng; Cha, Sang-Mok; Kim, Dong-Jin; Kim, Seung-Lee; Lee, Chung-Uk; Lee, Dong-Joo; Lee, Yongseok; Park, Byeong-Gon; Pogge, Richard W.; KMTNet Collaboration; Poleski, Radek; Mróz, Przemek; Skowron, Jan; Szymanski, Michal K.; Soszynski, Igor; Pietrukowicz, Pawel; Kozlowski, Szymon; Ulaczyk, Krzysztof; Rybicki, Krzysztof A.; Iwanek, Patryk; Wrona, Marcin; Gromadzki, Mariusz; OGLE collaboration (2023)
    We report on the discovery and analysis of the planetary microlensing event OGLE-2019-BLG-1180 with a planet-to-star mass ratio q ~ 0.003. The event OGLE-2019-BLG-1180 has unambiguous cusp-passing and caustic-crossing ...
  • The language of light: a review of bioluminescence in deep-sea decapod shrimps 
    Collins, Stormie B.; Bracken-Grissom, Heather D. (2024)
    In the dark, expansive habitat of the deep sea, the production of light through bioluminescence is commonly used among a wide range of taxa. In decapod crustaceans, bioluminescence is only known in shrimps (Dendrobranchiata ...
  • Unearthing who and Y at Harewood Cemetery and inference of George Washington’s Y-chromosomal haplotype 
    Cavagnino, Courtney; Runfeldt, Göran; Sager, Michael; Estes, Roberta; Tillmar, Andreas; Greytak, Ellen M.; Thomas, Jacqueline Tyler; Anderson, Elise; Daniels-Higginbotham, Jennifer; Kjelland, Katelyn; Sturk-Andreaggi, Kimberly; Parsons, Thomas J.; McMahon, Timothy P.; Marshall, Charla (2024)
  • Seismic and spectroscopic analysis of nine bright red giants observed by Kepler 
    Coelho, H. R.; Miglio, A.; Morel, T.; Lagarde, N.; Bossini, D.; Chaplin, W. J.; Degl'Innocenti, S.; Dell'Omodarme, M.; Garcia, R. A.; Handberg, R.; Hekker, S.; Huber, D.; Lund, M. N.; Mathur, S.; Prada Moroni, P. G.; Mosser, B.; Serenelli, A.; Rainer, M.; do Nascimento, J. D.; Poretti, E.; Mathias, P.; Valle, G.; Dal Tio, P.; Duarte, T. (2024)
  • Distant Echoes of the Milky Way's Last Major Merger 
    Chandra, Vedant; Naidu, Rohan P.; Conroy, Charlie; Ji, Alexander P.; Rix, Hans-Walter; Bonaca, Ana; Cargile, Phillip A.; Han, Jiwon Jesse; Johnson, Benjamin D.; Ting, Yuan-Sen; Woody, Turner; Zaritsky, Dennis (2023)
    The majority of the Milky Way's stellar halo consists of debris from our galaxy's last major merger, the Gaia-Sausage-Enceladus (GSE). In the past few years, stars from the GSE have been kinematically and chemically studied ...
  • Management of non-indigenous species in Macaronesia: Misconceptions and alerts to decision-makers 
    Castro, Nuno; Félix, Pedro M.; Gestoso, Ignacio; Costa, José L.; Canning-Clode, Jo (2024)
  • Astrochemical Modeling of Propargyl Radical Chemistry in TMC-1 
    Byrne, Alex N.; Xue, Ci; Cooke, Ilsa R.; McCarthy, Michael C.; McGuire, Brett A. (2023)
    Recent detections of aromatic species in dark molecular clouds suggest that formation pathways may be efficient at very low temperatures and pressures, yet current astrochemical models are unable to account for their derived ...
  • Viral pathogen detection in U.S. game-farm mallard (Anas platyrhynchos) flags spillover risk to wild birds 
    Bourke, Brian P.; Dusek, Robert J.; Ergunay, Koray; Linton, Yvonne-Marie; Drovetski, Sergei V. (2024)
    The threat posed by emerging infectious diseases is a major concern for global public health, animal health and food security, and the role of birds in transmission is increasingly under scrutiny. Each year, millions of ...
  • A Parsec-scale Catalog of Molecular Clouds in the Solar Neighborhood Based on 3D Dust Mapping: Implications for the Mass-Size Relation 
    Cahlon, Shlomo; Zucker, Catherine; Goodman, Alyssa; Lada, Charles; Alves, João (2024)
    We dendrogram the Leike et al. 3D dust map, leveraging its ~1 pc spatial resolution to produce a uniform catalog of molecular clouds in the solar neighborhood. Using accurate distances, we measure the properties of 65 ...
  • Kepler-102: Masses and Compositions for a Super-Earth and Sub-Neptune Orbiting an Active Star 
    Brinkman, Casey L.; Cadman, James; Weiss, Lauren; Gaidos, Eric; Rice, Ken; Huber, Daniel; Claytor, Zachary R.; Bonomo, Aldo S.; Buchhave, Lars A.; Collier Cameron, Andrew; Cosentino, Rosario; Dumusque, Xavier; Martinez Fiorenzano, Aldo F.; Ghedina, Adriano; Harutyunyan, Avet; Howard, Andrew; Isaacson, Howard; Latham, David W.; López-Morales, Mercedes; Malavolta, Luca; Micela, Giuseppina; Molinari, Emilio; Pepe, Francesco; Philips, David F.; Poretti, Ennio; Sozzetti, Alessandro; Udry, Stéphane (2023)
    Radial velocity (RV) measurements of transiting multiplanet systems allow us to understand the densities and compositions of planets unlike those in the solar system. Kepler-102, which consists of five tightly packed ...
  • Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat 
    Bhargava, Yash; Dewangan, Gulab Chand; Anupama, G. C.; Kamath, U. S.; Sonith, L. S.; Singh, Kulinder Pal; Drake, J. J.; Beardmore, A.; Luna, G. J. M.; Orio, M.; Page, K. L. (2024)
    Nova Her 2021 or V1674 Her was one of the fastest novae to be observed so far. We report here the results from our timing and spectral studies of the source observed at multiple epochs with AstroSat. We report the detection ...
  • Evidence for heavy-seed origin of early supermassive black holes from a z ˜ 10 X-ray quasar 
    Bogdán, Ákos; Goulding, Andy D.; Natarajan, Priyamvada; Kovács, Orsolya E.; Tremblay, Grant R.; Chadayammuri, Urmila; Volonteri, Marta; Kraft, Ralph P.; Forman, William R.; Jones, Christine; Churazov, Eugene; Zhuravleva, Irina (2024)
    Observations of quasars reveal that many supermassive black holes (BHs) were in place less than 700 Myr after the Big Bang. However, the origin of the first BHs remains a mystery. Seeds of the first BHs are postulated to ...
  • Density distributions, magnetic field structures, and fragmentation in high-mass star formation 
    Beuther, H.; Gieser, C.; Soler, J. D.; Zhang, Q.; Rao, R.; Semenov, D.; Henning, Th; Pudritz, R.; Peters, T.; Klaassen, P.; Beltrán, M. T.; Palau, A.; Möller, T.; Johnston, K. G.; Zinnecker, H.; Urquhart, J.; Kuiper, R.; Ahmadi, A.; Sánchez-Monge, Á; Feng, S.; Leurini, S.; Ragan, S. E. (2024)
    Context. The fragmentation of high-mass star-forming regions depends on a variety of physical parameters, including density, the magnetic field, and turbulent gas properties. Aims: We evaluate the importance of the density ...
  • Community Action: Planning for Specimen Management in Funding Proposals 
    Bentley, Andrew; Thiers, Barbara; Moser, William E.; Watkins-Colwell, Gregory J.; Zimkus, Breda M.; Monfils, Anna K.; Franz, Nico M.; Bates, John M.; Boundy-Mills, Kyria; Lomas, Michael W.; Ellwood, Elizabeth R.; Poo, Sinlan; Contreras, Dori L.; Webster, Michael S.; Nelson, Gil; Pandey, Jyotsna L. (2024)
  • Orbital Decay in an Accreting and Eclipsing 13.7 Minute Orbital Period Binary with a Luminous Donor 
    Burdge, Kevin B.; El-Badry, Kareem; Rappaport, Saul; Sunny Wong, Tin Long; Bauer, Evan B.; Bildsten, Lars; Caiazzo, Ilaria; Chakrabarty, Deepto; Chickles, Emma; Graham, Matthew J.; Kara, Erin; Kulkarni, S. R.; Marsh, Thomas R.; Nynka, Melania; Prince, Thomas A.; Simcoe, Robert A.; van Roestel, Jan; Vanderbosch, Zach; Bellm, Eric C.; Dekany, Richard G.; Drake, Andrew J.; Helou, George; Masci, Frank J.; Milburn, Jennifer; Riddle, Reed; Rusholme, Ben; Smith, Roger (2023)
    We report the discovery of ZTF J0127+5258, a compact mass-transferring binary with an orbital period of 13.7 minutes. The system contains a white dwarf accretor, which likely originated as a post-common envelope carbon-oxygen ...

Search DSpace

Browse

My Account