Smithsonian Digital Repository: Recent submissions

  • Gas Sloshing and Cold Fronts in Pre-merging Galaxy Cluster A98 
    Sarkar, Arnab; Randall, Scott; Su, Yuanyuan; Alvarez, Gabriella E.; Sarazin, Craig L.; Jones, Christine; Blanton, Elizabeth; Nulsen, Paul; Chakraborty, Priyanka; Bulbul, Esra; Zuhone, John; Andrade-Santos, Felipe; Johnson, Ryan E. (2023)
    We present deep Chandra observations of the pre-merger galaxy cluster Abell 98 (A98). A98 is a complex merging system. While the northern (A98N) and central subclusters (A98S) are merging along the north-south direction, ...
  • First on-sky results of a Fabry-Perot Instrument for Oxygen Searches (FIOS) prototype 
    Rukdee, S.; Ben-Ami, S.; López-Morales, Mercedes; Szentgyorgyi, Andrew; Charbonneau, David; García-Mejía, Juliana; Buchner, J. (2023)
    Context. The upcoming Extremely Large Telescopes (ELTs) are expected to have a sufficient collecting area required to detect potential biosignature gases such as molecular oxygen, O<sub>2</sub>, in the atmosphere of ...
  • Early Release Science of the exoplanet WASP-39b with JWST NIRSpec PRISM 
    Rustamkulov, Z.; Sing, D. K.; Mukherjee, S.; May, E. M.; Kirk, James; Schlawin, E.; Line, M. R.; Piaulet, C.; Carter, A. L.; Batalha, N. E.; Goyal, J. M.; López-Morales, Mercedes; Lothringer, J. D.; MacDonald, R. J.; Moran, S. E.; Stevenson, K. B.; Wakeford, H. R.; Espinoza, N.; Bean, J. L.; Batalha, N. M.; Benneke, B.; Berta-Thompson, Z. K.; Crossfield, I. J. M.; Gao, P.; Kreidberg, L.; Powell, Diana K.; Cubillos, P. E.; Gibson, N. P.; Leconte, J.; Molaverdikhani, K.; Nikolov, N. K.; Parmentier, V.; Roy, P.; Taylor, J.; Turner, J. D.; Wheatley, P. J.; Aggarwal, K.; Ahrer, E.; Alam, M. K.; Alderson, L.; Allen, N. H.; Banerjee, A.; Barat, S.; Barrado, D.; Barstow, J. K.; Bell, T. J.; Blecic, J.; Brande, J.; Casewell, S.; Changeat, Q.; Chubb, K. L.; Crouzet, N.; Daylan, T.; Decin, L.; Désert, J.; Mikal-Evans, T.; Feinstein, A. D.; Flagg, L.; Fortney, J. J.; Harrington, J.; Heng, K.; Hong, Y.; Hu, R.; Iro, N.; Kataria, T.; Kempton, E. M. -R; Krick, J.; Lendl, M.; Lillo-Box, J.; Louca, A.; Lustig-Yaeger, J.; Mancini, L.; Mansfield, M.; Mayne, N. J.; Miguel, Y.; Morello, G.; Ohno, K.; Palle, E.; Petit dit de la Roche, D. J. M.; Rackham, B. V.; Radica, M.; Ramos-Rosado, L.; Redfield, S.; Rogers, L. K.; Shkolnik, E. L.; Southworth, J.; Teske, J.; Tremblin, P.; Tucker, G. S.; Venot, O.; Waalkes, W. C.; Welbanks, L.; Zhang, X.; Zieba, S. (2023)
    Transmission spectroscopy<sup>1-3</sup> of exoplanets has revealed signatures of water vapour, aerosols and alkali metals in a few dozen exoplanet atmospheres<sup>4,5</sup>. However, these previous inferences with the ...
  • Mass Production of 2021 KMTNet Microlensing Planets II 
    Ryu, Yoon-Hyun; Shin, In-Gu; Yang, Hongjing; Gould, Andrew; Albrow, Michael D.; Chung, Sun-Ju; Han, Cheongho; Hwang, Kyu-Ha; Kil Jung, Youn; Shvartzvald, Yossi; Yee, Jennifer C.; 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. (2023)
    We continue our program of publishing all planets (and possible planets) found by eye in 2021 Korea Microlensing Telescope Network (KMTNet) online data. We present four planets (KMT-2021-BLG-0712Lb, KMT-2021-BLG-0909Lb, ...
  • A massive multiphase plume of gas in Abell 2390's brightest cluster galaxy 
    Rose, Tom; McNamara, B. R.; Combes, F.; Edge, A. C.; Russell, H.; Salomé, P.; Tamhane, P.; Fabian, A. C.; Tremblay, G. (2024)
    We present new ALMA CO(2-1) observations tracing $2.2 \times 10^{10}\, \textnormal {M}_{\odot }$ of molecular gas in Abell 2390's brightest cluster galaxy, where half the gas is located in a one-sided plume extending 15 ...
  • Preliminary quantification of the available solar power near the lunar South Pole 
    Ross, Amia K.; Ruppert, Sephora; Gläser, Philipp; Elvis, Martin (2023)
    The lunar South Pole is an area of great interest for human bases and for the mining of water from the nearby permanently shadowed regions (PSRs) that remain below 110 K at all times. To provide power for these activities, ...
  • OGLE-2019-BLG-0825: Constraints on the Source System and Effect on Binary-lens Parameters Arising from a Five-day Xallarap Effect in a Candidate Planetary Microlensing Event 
    Satoh, Yuki K.; Koshimoto, Naoki; Bennett, David P.; Sumi, Takahiro; Rattenbury, Nicholas J.; Suzuki, Daisuke; Miyazaki, Shota; Bond, Ian A.; Udalski, Andrzej; Gould, Andrew; Bozza, Valerio; Dominik, Martin; Hirao, Yuki; Kondo, Iona; Kirikawa, Rintaro; Hamada, Ryusei; Abe, Fumio; Barry, Richard; Bhattacharya, Aparna; Fujii, Hirosane; Fukui, Akihiko; Fujita, Katsuki; Ikeno, Tomoya; Ishitani Silva, Stela; Itow, Yoshitaka; Matsubara, Yutaka; Matsumoto, Sho; Muraki, Yasushi; Niwa, Kosuke; Okamura, Arisa; Olmschenk, Greg; Ranc, Clément; Toda, Taiga; Tomoyoshi, Mio; Tristram, Paul J.; Vandorou, Aikaterini; Yama, Hibiki; Yamashita, Kansuke; MOA Collaboration; Mróz, Przemek; Poleski, Radoslaw; Skowron, Jan; Szymanski, Michal K.; Poleski, Radek; Soszynski, Igor; Pietrukowicz, Pawel; Kozlowski, Szymon; Ulaczyk, Krzysztof; Rybicki, Krzysztof A.; Iwanek, Patryk; Wrona, Marcin; Gromadzki, Mariusz; OGLE Collaboration; Albrow, Michael D.; Chung, Sun-Ju; Han, Cheongho; Hwang, Kyu-Ha; Kim, Doeon; Jung, Youn Kil; Kim, Hyoun Woo; Ryu, Yoon-Hyun; Shin, In-Gu; Shvartzvald, Yossi; Yang, Hongjing; Yee, Jennifer C.; 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; Jørgensen, Uffe G.; Longa-Peña, Penélope; Sajadian, Sedighe; Skottfelt, Jesper; Snodgrass, Colin; Tregloan-Reed, Jeremy; Bach-Møller, Nanna; Burgdorf, Martin; D'Ago, Giuseppe; Haikala, Lauri; Hitchcock, James; Hundertmark, Markus; Khalouei, Elahe; Peixinho, Nuno; Rahvar, Sohrab; Southworth, John; Spyratos, Petros; Mindstep Collaboration (2023)
    We present an analysis of microlensing event OGLE-2019-BLG-0825. This event was identified as a planetary candidate by preliminary modeling. We find that significant residuals from the best-fit static binary-lens model ...
  • Parker Solar Probe: Four Years of Discoveries at Solar Cycle Minimum 
    Raouafi, N. E.; Matteini, L.; Squire, J.; Badman, S. T.; Velli, M.; Klein, K. G.; Chen, C. H. K.; Matthaeus, W. H.; Szabo, A.; Linton, M.; Allen, R. C.; Szalay, J. R.; Bruno, R.; Decker, R. B.; Akhavan-Tafti, M.; Agapitov, O. V.; Bale, S. D.; Bandyopadhyay, R.; Battams, K.; Bercic, L.; Bourouaine, S.; Bowen, T. A.; Cattell, C.; Chandran, B. D. G.; Chhiber, R.; Cohen, C. M. S.; D'Amicis, R.; Giacalone, J.; Hess, P.; Howard, R. A.; Horbury, T. S.; Jagarlamudi, V. K.; Joyce, C. J.; Kasper, J. C.; Kinnison, J.; Laker, R.; Liewer, P.; Malaspina, D. M.; Mann, I.; McComas, D. J.; Niembro-Hernandez, T.; Nieves-Chinchilla, T.; Panasenco, O.; Pokorný, P.; Pusack, A.; Pulupa, M.; Perez, J. C.; Riley, P.; Rouillard, A. P.; Shi, C.; Stenborg, G.; Tenerani, A.; Verniero, J. L.; Viall, N.; Vourlidas, A.; Wood, B. E.; Woodham, L. D.; Woolley, T. (2023)
    Launched on 12 Aug. 2018, NASA's Parker Solar Probe had completed 13 of its scheduled 24 orbits around the Sun by Nov. 2022. The mission's primary science goal is to determine the structure and dynamics of the Sun's coronal ...
  • Near-Sun In Situ and Remote-sensing Observations of a Coronal Mass Ejection and its Effect on the Heliospheric Current Sheet 
    Romeo, O. M.; Braga, C. R.; Badman, S. T.; Larson, D. E.; Stevens, Michael L.; Huang, J.; Phan, T.; Rahmati, A.; Livi, R.; Alnussirat, S. T.; Whittlesey, P. L.; Szabo, A.; Klein, K. G.; Niembro-Hernandez, T.; Paulson, Kristoff; Verniero, J. L.; Lario, D.; Raouafi, N. E.; Ervin, T.; Kasper, J.; Pulupa, M.; Bale, S. D.; Linton, M. G. (2023)
    During the thirteenth encounter of the Parker Solar Probe (PSP) mission, the spacecraft traveled through a topologically complex interplanetary coronal mass ejection (ICME) beginning on 2022 September 5. PSP traversed ...
  • Experimental Realization of the Peregrine Soliton in Repulsive Two-Component Bose-Einstein Condensates 
    Romero-Ros, A.; Katsimiga, G. C.; Mistakidis, S. I.; Mossman, S.; Biondini, G.; Schmelcher, P.; Engels, P.; Kevrekidis, P. G. (2024)
    We experimentally realize the Peregrine soliton in a highly particle-imbalanced two-component repulsive Bose-Einstein condensate in the immiscible regime. The effective focusing dynamics and resulting modulational instability ...
  • X-Ray Polarized View of the Accretion Geometry in the X-Ray Binary Circinus X-1 
    Rankin, John; La Monaca, Fabio; Di Marco, Alessandro; Poutanen, Juri; Bobrikova, Anna; Kravtsov, Vadim; Muleri, Fabio; Pilia, Maura; Veledina, Alexandra; Fender, Rob; Kaaret, Philip; Kim, Dawoon E.; Marinucci, Andrea; Marshall, Herman L.; Papitto, Alessandro; Tennant, Allyn F.; Tsygankov, Sergey S.; Weisskopf, Martin C.; Wu, Kinwah; Zane, Silvia; Ambrosino, Filippo; Farinelli, Ruben; Gnarini, Andrea; Agudo, Iván; Antonelli, Lucio A.; Bachetti, Matteo; Baldini, Luca; Baumgartner, Wayne H.; Bellazzini, Ronaldo; Bianchi, Stefano; Bongiorno, Stephen D.; Bonino, Raffaella; Brez, Alessandro; Bucciantini, Niccolò; Capitanio, Fiamma; Castellano, Simone; Cavazzuti, Elisabetta; Chen, Chien-Ting; Ciprini, Stefano; Costa, Enrico; De Rosa, Alessandra; Del Monte, Ettore; Di Gesu, Laura; Di Lalla, Niccolò; Donnarumma, Immacolata; Doroshenko, Victor; Dovciak, Michal; Ehlert, Steven R.; Enoto, Teruaki; Evangelista, Yuri; Fabiani, Sergio; Ferrazzoli, Riccardo; Garcia, Javier A.; Gunji, Shuichi; Hayashida, Kiyoshi; Heyl, Jeremy; Iwakiri, Wataru; Jorstad, Svetlana G.; Karas, Vladimir; Kislat, Fabian; Kitaguchi, Takao; Kolodziejczak, Jeffery J.; Krawczynski, Henric; Latronico, Luca; Liodakis, Ioannis; Maldera, Simone; Manfreda, Alberto; Marin, Frédéric; Marscher, Alan P.; Massaro, Francesco; Matt, Giorgio; Mitsuishi, Ikuyuki; Mizuno, Tsunefumi; Negro, Michela; Ng, Chi-Yung; O'Dell, Stephen L.; Omodei, Nicola; Oppedisano, Chiara; Pavlov, George G.; Peirson, Abel L.; Perri, Matteo; Pesce-Rollins, Melissa; Petrucci, Pierre-Olivier; Possenti, Andrea; Puccetti, Simonetta; Ramsey, Brian D.; Ratheesh, Ajay; Roberts, Oliver J.; Romani, Roger W.; Sgrò, Carmelo; Slane, Patrick; Soffitta, Paolo; Spandre, Gloria; Swartz, Douglas A.; Tamagawa, Toru; Tavecchio, Fabrizio; Taverna, Roberto; Tawara, Yuzuru; Thomas, Nicholas E.; Tombesi, Francesco; Trois, Alessio; Turolla, Roberto; Vink, Jacco; Xie, Fei (2024)
    Cir X-1 is a neutron star X-ray binary characterized by strong variations in flux during its eccentric ~16.6 day orbit. There are also strong variations in the spectral state, and it has historically shown both atoll and ...
  • Inferences from Surface Brightness Fluctuations of Zwicky 3146 via the Sunyaev-Zel'dovich Effect and X-Ray Observations 
    Romero, Charles E.; Gaspari, Massimo; Schellenberger, Gerrit; Bhandarkar, Tanay; Devlin, Mark; Dicker, Simon R.; Forman, William; Khatri, Rishi; Kraft, Ralph; Di Mascolo, Luca; Mason, Brian S.; Moravec, Emily; Mroczkowski, Tony; Nulsen, Paul; Orlowski-Scherer, John; Perez Sarmiento, Karen; Sarazin, Craig; Sievers, Jonathan; Su, Yuanyuan (2023)
    The galaxy cluster Zwicky 3146 is a sloshing cool-core cluster at z = 0.291 that in Sunyaev-Zel'dovich (SZ) imaging does not appear to exhibit significant pressure substructure in the intracluster medium. We perform a ...
  • SRGeJ045359.9+622444: A 55 Minute Period Eclipsing AM Canum Venaticorum Star Discovered from a Joint SRG/eROSITA + ZTF Search 
    Rodriguez, Antonio C.; Galiullin, Ilkham; Gilfanov, Marat; Kulkarni, Shrinivas R.; Khamitov, Irek; Bikmaev, Ilfan; van Roestel, Jan; Yungelson, Lev; El-Badry, Kareem; Sunayev, Rashid; Prince, Thomas A.; Buntov, Mikhail; Caiazzo, Ilaria; Drake, Andrew; Gorbachev, Mark; Graham, Matthew J.; Gumerov, Rustam; Irtuganov, Eldar; Laher, Russ R.; Masci, Frank J.; Medvedev, Pavel; Purdum, Josiah; Sakhibullin, Nail; Sklyanov, Alexander; Smith, Roger; Szkody, Paula; Vanderbosch, Zachary P. (2023)
    AM Canum Venaticorum (AM CVn) systems are ultracompact binaries where a white dwarf accretes from a helium-rich degenerate or semidegenerate donor. Some AM CVn systems will be among the loudest sources of gravitational ...
  • Astronomical Detection of the Interstellar Anion C<sub>10</sub>H<sup>-</sup> toward TMC-1 from the GOTHAM Large Program on the Green Bank Telescope 
    Remijan, Anthony; Scolati, Haley N.; Burkhardt, Andrew M.; Changala, P. Bryan; Charnley, Steven B.; Cooke, Ilsa R.; Cordiner, Martin A.; Gupta, Harshal; Herbst, Eric; Kelvin Lee, Kin Long; Loomis, Ryan A.; Shingledecker, Christopher N.; Siebert, Mark A.; Xue, Ci; McCarthy, Michael C.; McGuire, Brett A. (2023)
    Using data from the Green Bank Telescope (GBT) Observations of TMC-1: Hunting for Aromatic Molecules (GOTHAM) survey, we report the first astronomical detection of the C<sub>10</sub>H<sup>-</sup> anion. The astronomical ...
  • HST PanCET programme: a flat optical transmission spectrum for the Hot Jupiter WASP-101b 
    Rathcke, Alexander D.; Buchhave, Lars A.; Mendonça, João M.; Sing, David K.; López-Morales, Mercedes; Alam, Munazza K.; Henry, Gregory W.; Nikolov, Nikolay K.; García Muñoz, A.; Mikal-Evans, Thomas; Wakeford, Hannah R.; Dos Santos, Leonardo A.; Rajpaul, Vinesh Maguire (2023)
    We present an optical transmission spectrum of the hot Jupiter WASP-101b. We observed three primary transits with Hubble Space Telescope (HST)/Space Telescope Imaging Spectrograph, covering a wavelength range from 0.3 to ...
  • The star formation history of the Sco-Cen association. Coherent star formation patterns in space and time 
    Ratzenböck, Sebastian; Großschedl, Josefa E.; Alves, João; Miret-Roig, Núria; Bomze, Immanuel; Forbes, John; Goodman, Alyssa; Hacar, Álvaro; Lin, Doug; Meingast, Stefan; Möller, Torsten; Piecka, Martin; Posch, Laura; Rottensteiner, Alena; Swiggum, Cameren; Zucker, Catherine (2023)
    We reconstructed the star formation history of the Sco-Cen OB association using a novel high-resolution age map of the region. We developed an approach to produce robust ages for Sco-Cen's recently identified 37 stellar ...
  • The Hydrostatic Mass of A478: Discrepant Results from Chandra, NuSTAR, and XMM-Newton 
    Potter, Cicely; Tümer, Aysegül; Wang, Qian H. S.; Wik, Daniel R.; Maughan, Ben J.; Schellenberger, Gerrit (2023)
    Galaxy clusters are the most recently formed and most massive, gravitationally bound structures in the Universe. The number of galaxy clusters formed is highly dependent on cosmological parameters, such as the dark matter ...
  • Infall and outflow towards high-mass starless clump candidates 
    Pillai, T. G. S.; Urquhart, J. S.; Leurini, S.; Zhang, Q.; Traficante, A.; Colombo, D.; Wang, K.; Gomez, L.; Wyrowski, F. (2023)
    The evolutionary sequence for high-mass star formation starts with massive starless clumps that go on to form protostellar, young stellar objects and then compact H II regions. While there are many examples of the three ...
  • The effect of stellar contamination on low-resolution transmission spectroscopy: needs identified by NASA's Exoplanet Exploration Program Study Analysis Group 21 
    Rackham, Benjamin V.; Espinoza, Néstor; Berdyugina, Svetlana V.; Korhonen, Heidi; MacDonald, Ryan J.; Montet, Benjamin T.; Morris, Brett M.; Oshagh, Mahmoudreza; Shapiro, Alexander I.; Unruh, Yvonne C.; Quintana, Elisa V.; Zellem, Robert T.; Apai, Dániel; Barclay, Thomas; Barstow, Joanna K.; Bruno, Giovanni; Carone, Ludmila; Casewell, Sarah L.; Cegla, Heather M.; Criscuoli, Serena; Fischer, Catherine; Fournier, Damien; Giampapa, Mark S.; Giles, Helen; Iyer, Aishwarya; Kopp, Greg; Kostogryz, Nadiia M.; Krivova, Natalie; Mallonn, Matthias; McGruder, Chima; Molaverdikhani, Karan; Newton, Elisabeth R.; Panja, Mayukh; Peacock, Sarah; Reardon, Kevin; Roettenbacher, Rachael M.; Scandariato, Gaetano; Solanki, Sami; Stassun, Keivan G.; Steiner, Oskar; Stevenson, Kevin B.; Tregloan-Reed, Jeremy; Valio, Adriana; Wedemeyer, Sven; Welbanks, Luis; Yu, Jie; Alam, Munazza K.; Davenport, James R. A.; Deming, Drake; Dong, Chuanfei; Ducrot, Elsa; Fisher, Chloe; Gilbert, Emily; Kostov, Veselin; López-Morales, Mercedes; Line, Mike; Mocnik, Teo; Mullally, Susan; Paudel, Rishi R.; Ribas, Ignasi; Valenti, Jeff A. (2023)
    Study Analysis Group 21 (SAG21) of NASA's Exoplanet Exploration Program Analysis Group was organized to study the effect of stellar contamination on space-based transmission spectroscopy, a method for studying exoplanetary ...
  • HST/WFC3 Light Curve Supports a Terrestrial Composition for the Closest Exoplanet to Transit an M Dwarf 
    Pass, Emily K.; Winters, Jennifer G.; Charbonneau, David; Balkanski, Aurelia; Lewis, Nikole; Lally, Maura; Bean, Jacob L.; Cloutier, Ryan; Eastman, Jason D. (2023)
    Previous studies of the exoplanet LTT 1445Ac concluded that the light curve from the Transiting Exoplanet Survey Satellite (TESS) was consistent with both grazing and nongrazing geometries. As a result, the radius and hence ...

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