Smithsonian Digital Repository: Recent submissions

  • Two mini-Neptunes transiting the adolescent K-star HIP 113103 confirmed with TESS and CHEOPS 
    Lowson, N.; Zhou, G.; Huang, C. X.; Wright, D. J.; Edwards, B.; Nabbie, E.; Venner, A.; Quinn, Samuel N.; Collins, Karen A.; Gillen, E.; Battley, M.; Triaud, A.; Hellier, C.; Seager, S.; Winn, J. N.; Jenkins, J. M.; Wohler, B.; Shporer, A.; Schwarz, Rchard P.; Murgas, F.; Pallé, E.; Anderson, D. R.; West, R. G.; Wittenmyer, R. A.; Bowler, B. P.; Horner, J.; Kane, S. R.; Kielkopf, J.; Plavchan, P.; Zhang, H.; Fairnington, T.; Okumura, J.; Mengel, M. W.; Addison, B. C. (2024)
    We report the discovery of two mini-Neptunes in near 2:1 resonance orbits (P = 7.610303 d for HIP 113103 b and P = 14.245651 d for HIP 113103 c) around the adolescent K-star HIP 113103 (TIC 121490076). The planet system ...
  • JWST/NIRCam Transmission Spectroscopy of the Nearby Sub-Earth GJ 341b 
    Kirk, James; Stevenson, Kevin B.; Fu, Guangwei; Lustig-Yaeger, Jacob; Moran, Sarah E.; Peacock, Sarah; Alam, Munazza K.; Batalha, Natasha E.; Bennett, Katherine A.; Gonzalez-Quiles, Junellie; López-Morales, Mercedes; Lothringer, Joshua D.; MacDonald, Ryan J.; May, E. M.; Mayorga, L. C.; Rustamkulov, Zafar; Sing, David K.; Sotzen, Kristin S.; Valenti, Jeff A.; Wakeford, Hannah R. (2024)
    We present a JWST/Near Infrared Camera (NIRCam) transmission spectrum from 3.9 to 5.0 µm of the recently validated sub-Earth GJ 341b (R <sub>P</sub> = 0.92 R <sub>?</sub>, T <sub>eq</sub> = 540 K) orbiting a nearby bright ...
  • Validation of TOI-1221 b: A Warm Sub-Neptune Exhibiting Transit Timing Variations around a Sun-like Star 
    Mann, Christopher; Lafreniére, David; Dragomir, Diana; Quinn, Samuel N.; Tan, Thiam-Guan; Collins, Karen A.; Howell, Steve B.; Ziegler, Carl; Mann, Andrew W.; Stassun, Keivan G.; Kristiansen, Martti H.; Osborn, Hugh; Boyajian, Tabetha; Eisner, Nora; Hellier, Coel; Ricker, George R.; Vanderspek, Roland; Latham, David W.; Seager, S.; Winn, Joshua N.; Jenkins, Jon M.; Villaseñor, Jesus Noel; McLean, Brian; Rowden, Pamela; Torres, Guillermo; Caldwell, Douglas A.; Collins, Kevin I.; Schwarz, Richard P. (2023)
    We present a validation of a long-period ( ${91.68278}_{-0.00041}^{+0.00032}$ days) transiting sub-Neptune planet, TOI-1221 b (TIC 349095149.01), around a Sun-like (m <sub> V </sub> = 10.5) star. This is one of the few ...
  • SMA Detection of an Extreme Millimeter Flare from the Young Class III Star HD 283572 
    Lovell, Joshua Bennett; Keating, Garrett K.; Wilner, David J.; Andrews, Sean M.; MacGregor, Meredith; Rahman, Ramisa Akther; Rao, Ramprasad; Williams, Jonathan P. (2024)
    We present evidence of variable 1.3 mm emission from the 1 to 3 Myr, spectral-type G2–G5 class III young stellar object (YSO), HD 283572. HD 283572 was observed on eight dates with the Submillimeter Array between 2021 ...
  • Measuring black hole spins through X-ray reflection spectroscopy and the relativistic precession model: the case of XTE J1859+226 
    Mall, Gitika; Liu, Honghui; Bambi, Cosimo; Steiner, James F.; García, Javier A. (2024)
    The development of techniques to measure accurately black hole spins is crucial to study the physics and astrophysics of these objects. X-ray reflection spectroscopy is currently the most popular method to estimate the ...
  • An Extensive Hubble Space Telescope Study of the Offset and Host Light Distributions of Type I Superluminous Supernovae 
    Hsu, Brian; Blanchard, Peter K.; Berger, Edo; Gomez, Sebastian (2024)
    We present an extensive Hubble Space Telescope rest-frame UV imaging study of the locations of Type I superluminous supernovae (SLSNe) within their host galaxies. The sample includes 65 SLSNe with detected host galaxies ...
  • The Radio to GeV Afterglow of GRB 221009A 
    Laskar, Tanmoy; Alexander, Kate D.; Margutti, Raffaella; Eftekhari, Tarraneh; Chornock, Ryan; Berger, Edo; Cendes, Yvette; Duerr, Anne; Perley, Daniel A.; Ravasio, Maria Edvige; Yamazaki, Ryo; Ayache, Eliot H.; Barclay, Thomas; Duran, Rodolfo Barniol; Bhandari, Shivani; Brethauer, Daniel; Christy, Collin T.; Coppejans, Deanne L.; Duffell, Paul; Fong, Wen-fai; Gomboc, Andreja; Guidorzi, Cristiano; Kennea, Jamie A.; Kobayashi, Shiho; Levan, Andrew; Lobanov, Andrei P.; Metzger, Brian D.; Ros, Eduardo; Schroeder, Genevieve; Williams, P. K. G. (2023)
    GRB 221009A (z = 0.151) is one of the closest known long ?-ray bursts (GRBs). Its extreme brightness across all electromagnetic wavelengths provides an unprecedented opportunity to study a member of this still-mysterious ...
  • Luminous Radio Emission from the Superluminous Supernova 2017ens at 3.3 yr after Explosion 
    Margutti, Raffaella; Bright, J. S.; Matthews, D. J.; Coppejans, D. L.; Alexander, K. D.; Berger, E.; Bietenholz, M.; Chornock, R.; DeMarchi, L.; Drout, M. R.; Eftekhari, T.; Jacobson-Galán, W. V.; Laskar, T.; Milisavljevic, D.; Murase, K.; Nicholl, M.; Omand, C. M. B.; Stroh, M.; Terreran, G.; VanderLey, B. A. (2023)
    We present the results from a multiyear radio campaign of the superluminous supernova (SLSN) SN 2017ens, which yielded the earliest radio detection of an SLSN to date at the age of ~3.3 yr after explosion. SN 2017ens was ...
  • QPOML: a machine learning approach to detect and characterize quasi-periodic oscillations in X-ray binaries 
    Kiker, Thaddaeus J.; Steiner, James F.; Garraffo, Cecilia; Méndez, Mariano; Zhang, Liang (2023)
    Astronomy is presently experiencing profound growth in the deployment of machine learning to explore large data sets. However, transient quasi-periodic oscillations (QPOs) that appear in power density spectra of many X-ray ...
  • Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. III. Recovery and Confirmation of a Temperate, Mildly Eccentric, Single-transit Jupiter Orbiting TOI-2010 
    Mann, Christopher R.; Dalba, Paul A.; Lafrenière, David; Fulton, Benjamin J.; Hébrard, Guillaume; Boisse, Isabelle; Dalal, Shweta; Deleuil, Magali; Delfosse, Xavier; Demangeon, Olivier; Forveille, Thierry; Heidari, Neda; Kiefer, Flavien; Martioli, Eder; Moutou, Claire; Endl, Michael; Cochran, William D.; MacQueen, Phillip; Marchis, Franck; Dragomir, Diana; Gupta, Arvind F.; Feliz, Dax L.; Nicholson, Belinda A.; Ziegler, Carl; Villanueva, Steven; Rowe, Jason; Talens, Geert Jan; Thorngren, Daniel; LaCourse, Daryll; Jacobs, Tom; Howard, Andrew W.; Bieryla, Allyson; Latham, David W.; Rabus, Markus; Fetherolf, Tara; Hellier, Coel; Howell, Steve B.; Plavchan, Peter; Reefe, Michael; Combs, Deven; Bowen, Michael; Wittrock, Justin; Ricker, George R.; Seager, S.; Winn, Joshua N.; Jenkins, Jon M.; Barclay, Thomas; Watanabe, David; Collins, Karen A.; Eastman, Jason D.; Ting, Eric B. (2023)
    Large-scale exoplanet surveys like the Transiting Exoplanet Survey Satellite (TESS) mission are powerful tools for discovering large numbers of exoplanet candidates. Single-transit events are commonplace within the resulting ...
  • Radial velocity confirmation of a hot super-Neptune discovered by TESS with a warm Saturn-mass companion 
    Knudstrup, E.; Gandolfi, D.; Nowak, G.; Persson, C. M.; Furlan, E.; Livingston, J.; Matthews, E.; Lundkvist, M. S.; Winther, M. L.; Rørsted, J. L.; Albrecht, S. H.; Goffo, E.; Carleo, I.; Deeg, H. J.; Collins, K. A.; Narita, N.; Isaacson, H.; Redfield, S.; Dai, F.; Hirano, T.; Akana Murphy, J. M.; Beard, C.; Buchhave, L. A.; Cary, S.; Chontos, A.; Crossfield, I.; Cochran, W. D.; Conti, D.; Dalba, P. A.; Esposito, M.; Fajardo-Acosta, S.; Giacalone, S.; Grunblatt, S. K.; Guerra, P.; Hatzes, A. P.; Holcomb, R.; Horta, F. G.; Howard, A. W.; Huber, D.; Jenkins, J. M.; Kabáth, P.; Kane, S.; Korth, J.; Lam, K. W. F.; Lester, K. V.; Matson, R.; McLeod, K. K.; Orell-Miquel, J.; Murgas, F.; Palle, E.; Polanski, A. S.; Ricker, G.; Robertson, P.; Rubenzahl, R.; Schlieder, J. E.; Seager, S.; Smith, A. M. S.; Tenenbaum, P.; Turtelboom, E.; Vanderspek, R.; Weiss, L.; Winn, J. (2023)
    We report the discovery and confirmation of the planetary system TOI-1288. This late G dwarf harbours two planets: TOI-1288 b and TOI-1288 c. We combine TESS space-borne and ground-based transit photometry with HARPS-N and ...
  • TOI-4010: A System of Three Large Short-period Planets with a Massive Long-period Companion 
    Kunimoto, Michelle; Vanderburg, Andrew; Huang, Chelsea X.; Davis, M. Ryleigh; Affer, Laura; Cameron, Andrew Collier; Charbonneau, David; Cosentino, Rosario; Damasso, Mario; Dumusque, Xavier; Fiorenzano, A. F. Martnez; Ghedina, Adriano; Haywood, R. D.; Lienhard, Florian; López-Morales, Mercedes; Mayor, Michel; Pepe, Francesco; Pinamonti, Matteo; Poretti, Ennio; Maldonado, Jesús; Rice, Ken; Sozzetti, Alessandro; Wilson, Thomas G.; Udry, Stéphane; Baptista, Jay; Barkaoui, Khalid; Becker, Juliette; Benni, Paul; Bieryla, Allyson; Bosch-Cabot, Pau; Ciardi, David R.; Collins, Karen A.; Collins, Kevin I.; Evans, Elise; Dupuy, Trent J.; Goliguzova, Maria V.; Guerra, Pere; Kraus, Adam; Lissauer, Jack J.; Huber, Daniel; Murgas, Felipe; Palle, Enric; Quinn, Samuel N.; Safonov, Boris S.; Schwarz, Richard P.; Shporer, Avi; Stassun, Keivan G.; Jenkins, Jon M.; Latham, David W.; Ricker, George R.; Seager, Sara; Vanderspek, Roland; Winn, Joshua; Essack, Zahra; Lewis, Hannah M.; Rose, Mark E. (2023)
    We report the confirmation of three exoplanets transiting TOI-4010 (TIC-352682207), a metal-rich K dwarf observed by the Transiting Exoplanet Survey Satellite in Sectors 24, 25, 52, and 58. We confirm these planets with ...
  • Mapping Protoplanetary Disk Vertical Structure with CO Isotopologue Line Emission 
    Law, Charles J.; Teague, Richard; Öberg, Karin I.; Rich, Evan A.; Andrews, Sean M.; Bae, Jaehan; Benisty, Myriam; Facchini, Stefano; Flaherty, Kevin; Isella, Andrea; Jin, Sheng; Hashimoto, Jun; Huang, Jane; Loomis, Ryan A.; Long, Feng; Muñoz-Romero, Carlos E.; Paneque-Carreño, Teresa; Pérez, Laura M.; Qi, Chunhua; Schwarz, Kamber R.; Stadler, Jochen; Tsukagoshi, Takashi; Wilner, David J.; van der Plas, Gerrit (2023)
    High-spatial-resolution observations of CO isotopologue line emission in protoplanetary disks at mid-inclinations (˜30°-75°) allow us to characterize the gas structure in detail, including radial and vertical substructures, ...
  • Molecules with ALMA at Planet-forming Scales (MAPS): Complex Kinematics in the AS 209 Disk Induced by a Forming Planet and Disk Winds 
    Galloway-Sprietsma, Maria; Bae, Jaehan; Teague, Richard; Benisty, Myriam; Facchini, Stefano; Aikawa, Yuri; Alarcón, Felipe; Andrews, Sean M.; Bergin, Edwin; Cataldi, Gianni; Cleeves, L. Ilsedore; Czekala, Ian; Guzmán, Viviana V.; Huang, Jane; Law, Charles J.; Le Gal, Romane; Liu, Yao; Long, Feng; Ménard, François; Öberg, Karin I.; Walsh, Catherine; Wilner, David J. (2023)
    We study the kinematics of the AS 209 disk using the J = 2-1 transitions of <sup>12</sup>CO, <sup>13</sup>CO, and C<sup>18</sup>O. We derive the radial, azimuthal, and vertical velocity of the gas, taking into account the ...
  • Two sub-Neptunes around the M dwarf TOI-1470 
    González-Álvarez, E.; Zapatero Osorio, M. R.; Caballero, J. A.; Béjar, V. J. S.; Cifuentes, C.; Fukui, A.; Herrero, E.; Kawauchi, K.; Livingston, J. H.; López-González, M. J.; Morello, G.; Murgas, F.; Narita, N.; Pallé, E.; Passegger, V. M.; Rodríguez, E.; Rodríguez-López, C.; Sanz-Forcada, J.; Schweitzer, A.; Tabernero, H. M.; Quirrenbach, A.; Amado, P. J.; Charbonneau, D.; Ciardi, D. R.; Cikota, S.; Collins, K. A.; Conti, D. M.; Fausnaugh, M.; Hatzes, A. P.; Hedges, C.; Henning, Th; Jenkins, J. M.; Latham, D. W.; Massey, B.; Moldovan, D.; Montes, D.; Panahi, A.; Reiners, A.; Ribas, I.; Ricker, G. R.; Seager, S.; Shporer, A.; Srdoc, G.; Tenenbaum, P.; Vanderspek, R.; Winn, J. N.; Fukuda, I.; Ikoma, M.; Isogai, K.; Kawai, Y.; Mori, M.; Tamura, M.; Watanabe, N. (2023)
    Aims: A transiting planet candidate with a sub-Neptune radius orbiting the nearby (d = 51.9 ± 0.07 pc) M1.5 V star TOI-1470 with a period of ~2.5 d was announced by the NASA Transiting Exoplanet Survey Satellite (TESS), ...
  • Separated Twins or Just Siblings? A Multiplanet System around an M Dwarf Including a Cool Sub-Neptune 
    Harris, Mallory; Dragomir, Diana; Mireles, Ismael; Collins, Karen A.; Ulmer-Moll, Solène; Howell, Steve B.; Stassun, Keivan G.; Zhou, George; Ziegler, Carl; Bouchy, François; Briceño, César; Charbonneau, David; Collins, Kevin I.; Fuurész, Gábor; Guerrero, Natalia M.; Jenkins, Jon M.; Jensen, Eric L. N.; Kristiansen, Martti H. K.; Law, Nicholas; Lendl, Monika; Mann, Andrew W.; Osborn, Hugh P.; Quinn, Samuel N.; Ricker, George R.; Schwarz, Richard P.; Seager, Sara; Ting, Eric B.; Vanderspek, Roland; Watanabe, David; Winn, Joshua N. (2023)
    We report the discovery of two TESS sub-Neptunes orbiting the early M dwarf TOI-904 (TIC 261257684). Both exoplanets, TOI-904 b and c, were initially observed in TESS Sector 12 with twin sizes of ${2.426}_{-0.157}^{+0.163}$ ...
  • TOI-4562b: A Highly Eccentric Temperate Jupiter Analog Orbiting a Young Field Star 
    Heitzmann, Alexis; Zhou, George; Quinn, Samuel N.; Huang, Chelsea X.; Dong, Jiayin; Bouma, L. G.; Dawson, Rebekah I.; Marsden, Stephen C.; Wright, Duncan; Petit, Pascal; Collins, Karen A.; Barkaoui, Khalid; Wittenmyer, Robert A.; Gillen, Edward; Brahm, Rafael; Hobson, Melissa; Hellier, Coel; Ziegler, Carl; Briceño, César; Law, Nicholas; Mann, Andrew W.; Howell, Steve B.; Gnilka, Crystal L.; Littlefield, Colin; Latham, David W.; Lissauer, Jack J.; Newton, Elisabeth R.; Krolikowski, Daniel M.; Kerr, Ronan; Rampalli, Rayna; Douglas, Stephanie T.; Eisner, Nora L.; Guedj, Nathalie; Sun, Guoyou; Smit, Martin; Huten, Marc; Eschweiler, Thorsten; Abe, Lyu; Guillot, Tristan; Ricker, George; Vanderspek, Roland; Seager, Sara; Jenkins, Jon M.; Ting, Eric B.; Winn, Joshua N.; Ciardi, David R.; Vanderburg, Andrew M.; Burke, Christopher J.; Rodriguez, David R.; Daylan, Tansu (2023)
    We report the discovery of TOI-4562b (TIC-349576261), a Jovian planet orbiting a young F7V-type star, younger than the Praesepe/Hyades clusters (<sub>orb</sub> = 225.11781 ${}_{-0.00022}^{+0.00025}$ days) and because it ...
  • A Massive Hot Jupiter Orbiting a Metal-rich Early M Star Discovered in the TESS Full-frame Images 
    Gan, Tianjun; Cadieux, Charles; Jahandar, Farbod; Vazan, Allona; Wang, Sharon X.; Mao, Shude; Alvarado-Montes, Jaime A.; Lin, D. N. C.; Artigau, Étienne; Cook, Neil J.; Doyon, René; Mann, Andrew W.; Stassun, Keivan G.; Burgasser, Adam J.; Rackham, Benjamin V.; Howell, Steve B.; Collins, Karen A.; Barkaoui, Khalid; Shporer, Avi; de Leon, Jerome; Arnold, Luc; Ricker, George R.; Vanderspek, Roland; Latham, David W.; Seager, Sara; Winn, Joshua N.; Jenkins, Jon M.; Burdanov, Artem; Charbonneau, David; Dransfield, Georgina; Fukui, Akihiko; Furlan, Elise; Gillon, Michaël; Hooton, Matthew J.; Lewis, Hannah M.; Littlefield, Colin; Mireles, Ismael; Narita, Norio; Ormel, Chris W.; Quinn, Samuel N.; Sefako, Ramotholo; Timmermans, Mathilde; Vezie, Michael; de Wit, Julien (2023)
    Observations and statistical studies have shown that giant planets are rare around M dwarfs compared with Sun-like stars. The formation mechanism of these extreme systems has remained under debate for decades. With the ...
  • Triple and quadruple black holes in the ASTRID simulation at z 2 
    Hoffman, Calvin; Chen, Nianyi; Di Matteo, Tiziana; Ni, Yueying; Bird, Simeon; Croft, Rupert; Loeb, Abraham (2023)
    We use the ASTRID cosmological hydrodynamic simulation to investigate the properties and evolution of triple and quadruple massive black hole (MBH) systems at z = 2-3. Only a handful of MBH tuple systems have been detected ...
  • From Discovery to the First Month of the Type II Supernova 2023ixf: High and Variable Mass Loss in the Final Year before Explosion 
    Hiramatsu, Daichi; Tsuna, Daichi; Berger, Edo; Itagaki, Koichi; Goldberg, Jared A.; Gomez, Sebastian; Kishalay, De; Hosseinzadeh, Griffin; Bostroem, K. Azalee; Brown, Peter J.; Arcavi, Iair; Bieryla, Allyson; Blanchard, Peter K.; Esquerdo, Gilbert A.; Farah, Joseph; Howell, D. Andrew; Matsumoto, Tatsuya; McCully, Curtis; Newsome, Megan; Gonzalez, Estefania Padilla; Pellegrino, Craig; Rhee, Jaehyon; Terreran, Giacomo; Vinkó, József; Wheeler, J. Craig (2023)
    We present the discovery of the Type II supernova SN 2023ixf in M101 and follow-up photometric and spectroscopic observations, respectively, in the first month and week of its evolution. Our discovery was made within a day ...

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