Interpolated kilonova spectra models: Examining the effects of a phenomenological, blue component in the fitting of AT2017gfo spectra by Marko Ristić, Richard O'Shaughnessy, V. Ashley Villar, Ryan T. Wollaeger, Oleg Korobkin, Chris L. Fryer, Christopher J. Fontes, Atul Kedia

“…We demonstrate that our existing library of simulations is sufficient for training, producing interpolated spectra that respond sensitively to varied ejecta parameter, postmerger time, and viewing angle inputs. …”
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Geochemistry of the cretaceous-tertiary transition boundary at Blake Nose (N. W. Atlantic): Cosmogenic Ni by Premović Pavle I., Nikolić Nikola D., Pavlović Mirjana S., Panov Katja I.

“…The Cretaceous-Tertiary (KT) boundary transition at the Blake Nose Plateau recovered by ODP Leg 171B (site 1049, hole A, core 17X, section 2) contains an ejecta bed (thickness ca. 17 cm) marking a late Cretaceous asteroid impact. …”
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Dimming the Lights: 2D Simulations of Deflagrations of Hybrid C/O/Ne White Dwarfs Using FLASH by Catherine Feldman, Nathanael Gutierrez, Ellis Eisenberg, Donald E. Willcox, Dean M. Townsley, Alan C. Calder

“…Our realizations produce total ejecta yields on the order of 10 ^−2 –10 ^−1 M _☉ , ejected ^56 Ni yields on the order of 10 ^−4 –10 ^−2 M _☉ , and ejecta kinetic energies on the order of 10 ^48 –10 ^49 erg. …”
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Snowflakes in a Furnace: Formation of CO and Dust in a Recurrent Nova Eruption by D. P. K. Banerjee, C. E. Woodward, V. Joshi, A. Evans, F. M. Walter, G. H. Marion, E. Y. Hsiao, N. M. Ashok, R. D. Gehrz, S. Starrfield

“…At the time of their detection, the shocked gas was at a high temperature of ∼10 ^7 K as evidenced by the presence of coronal lines. The ejecta were simultaneously irradiated by a large flux of soft X-ray radiation from the central white dwarf. …”
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Outer radiation belt and inner magnetospheric response to sheath regions of coronal mass ejections: a statistical analysis by M. M. H. Kalliokoski, E. K. J. Kilpua, A. Osmane, D. L. Turner, A. N. Jaynes, L. Turc, H. George, M. Palmroth, M. Palmroth

“…We perform a statistical study of the events by using the superposed epoch analysis in which the sheaths are superposed separately from the ejecta and resampled to the same average duration. …”
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R-process Nucleosynthesis of Subminimal Neutron Star Explosions by Chun-Ming Yip, Ming-Chung Chu, Shing-Chi Leung, Lap-Ming Lin

“…An electron antineutrino burst with a peak luminosity of ∼3 × 10 ^50 erg s ^−1 is emitted while the ejecta is heated to ∼10 ^9 K. A robust r -process nucleosynthesis is realized in the ejecta. …”
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Possible evidence of asymmetry in SN 2007rt, a type IIn supernova by Trundle, C, Pastorello, A, Benetti, S, Kotak, R, Valenti, S, Agnoletto, I, Bufano, F, Dolci, M, Elias-Rosa, N, Greiner, T, Hunter, D, Keenan, F, Lorenzi, V, Maguire, K, Taubenberger, S

“…Its earliest spectrum, taken approximately 100 days after the explosion epoch, indicates the presence of a dense circumstellar medium, with which the supernova ejecta is interacting. This is supported by the slowly-evolving light curve. …”

Drop splashing after impact onto immiscible pools of different viscosities by Fudge, BD, Cimpeanu, R, Antkowiak, A, Castrejón-Pita, AA, Castrejón-Pita, JR

“…Our findings indicate that in this scenario the splashing threshold and the composition of the ejecta sheet are controlled by the viscosity ratio. …”

Turbulent amplification of magnetic fields in laboratory laser-produced shock waves by Meinecke, J, Doyle, H, Miniati, F, Bell, A, Bingham, R, Crowston, R, Drake, R, Fatenejad, M, Koenig, M, Kuramitsu, Y, Kuranz, C, Lamb, D, Lee, D, Macdonald, M, Murphy, C, Park, H, Pelka, A, Ravasio, A, Sakawa, Y, Schekochihin, A, Scopatz, A, Tzeferacos, P, Wan, W, Woolsey, N, Yurchak, R

“…Turbulence may be generated by hydrodynamic instability at the contact discontinuity between the supernova ejecta and the circumstellar gas9. However, optical observations of Cassiopeia A indicate that the ejecta are interacting with a highly inhomogeneous, dense circumstellar cloud bank formed before the supernova explosion10-12. …”

Turbulent amplification of magnetic fields in laboratory laser-produced shock waves by Meinecke, J, Doyle, H, Miniati, F, Bell, A, Bingham, R, Crowston, R, Drake, R, Fatenejad, M, Koenig, M, Kuramitsu, Y, Kuranz, C, Lamb, D, Lee, D, MacDonald, M, Murphy, C, Park, H, Pelka, A, Ravasio, A, Sakawa, Y, Schekochihin, A, Scopatz, A, Tzeferacos, P, Wan, W, Woolsey, N, Yurchak, R

“…Turbulence may be generated by hydrodynamic instability at the contact discontinuity between the supernova ejecta and the circumstellar gas9. However, optical observations of Cassiopeia A indicate that the ejecta are interacting with a highly inhomogeneous, dense circumstellar cloud bank formed before the supernova explosion10-12. …”

Radio afterglow of the jetted tidal disruption event Swift J1644+57 by Mimica P., Giannios D., Metzger B.D.

“…The point at which the reverse shock entirely crosses the earliest ejecta is clearly observed as an achromatic break in the radio light curve at t ≈ 10 days. …”
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Inferring the Progenitor Mass–Kinetic Energy Relation of Stripped-envelope Core-collapse Supernovae from Nebular Spectroscopy by Qiliang Fang, Keiichi Maeda

“…Combined with early phase observations, the method presented in this work provides a chance to scan through the ejecta from the outermost region to the dense inner core, which is important to reveal the global properties of the ejecta and constrain the explosion mechanism of core-collapse SNe.…”
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Imaging X-ray spectroscopy with micro-X and Chandra by Rutherford, John (John Morton)

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ANALYSIS OF THE EARLY-TIME OPTICAL SPECTRA OF SN 2011fe IN M101 by Parrent, J, Howell, D, Friesen, B, Thomas, R, Fesen, R, Milisavljevic, D, Bianco, F, Dilday, B, Nugent, P, Baron, E, Arcavi, I, Ben-Ami, S, Bersier, D, Bildsten, L, Bloom, J, Cao, Y, Cenko, S, Filippenko, A, Gal-Yam, A, Kasliwal, M, Konidaris, N, Kulkarni, SR, Law, N, Levitan, D, Maguire, K

“…This gives a clear picture of how various line-forming species are distributed within the outer layers of the ejecta, including that of unburned material (C+O). …”

An extremely powerful long-lived superluminal ejection from the black hole MAXI J1820+070 by Bright, JS, Fender, RP, Motta, SE, Williams, DRA, Moldon, J, Plotkin, RM, Miller-Jones, JCA, Heywood, I, Tremou, E, Beswick, R, Sivakoff, GR, Corbel, S, Buckley, DAH, Homan, J, Gallo, E, Tetarenko, AJ, Russell, TD, Green, DA, Titterington, D, Woudt, PA, Armstrong, RP, Groot, PJ, Horesh, A, van der Horst, AJ, Kording, EG, McBride, VA, Rowlinson, A, Wijers, RAMJ

“…We monitor the evolution of the ejecta over 200 days and to a maximum separation of 10″, during which period it remains detectable due to in situ particle acceleration. …”

Core-collapse Supernova Explosions in Active Galactic Nucleus Accretion Disks by Fu-Lin Li, Yu Liu, Xiao Fan, Mao-Kai Hu, Xuan Yang, Jin-Jun Geng, Xue-Feng Wu

“…If the stellar winds manage to create a cavity surrounded by a shell near the star before the SN explosion, the ejecta–winds–disk configurations are expected. We present various SN LCs from different types of progenitors and find that the SN LCs are dominated by the radiation of ejecta–disk interaction induced shocks. …”
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Spectroscopic r-Process Abundance Retrieval for Kilonovae. I. The Inferred Abundance Pattern of Early Emission from GW170817 by Nicholas Vieira, John J. Ruan, Daryl Haggard, Nicole Ford, Maria R. Drout, Rodrigo Fernández, N. R. Badnell

“…Freshly synthesized r -process elements in kilonovae ejecta imprint absorption features on optical spectra, as observed in the GW170817 binary neutron star merger. …”
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Unified Relationship between Cold Plasma Ejections and Flare Energies Ranging from Solar Microflares to Giant Stellar Flares by Yuji Kotani, Kazunari Shibata, Takako T. Ishii, Daiki Yamasaki, Kenichi Otsuji, Kiyoshi Ichimoto, Ayumi Asai

“…We determined the physical quantities of the ejecta by cloud model fitting to the H α spectrum. …”
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Semi-Supervised Learning Method for the Augmentation of an Incomplete Image-Based Inventory of Earthquake-Induced Soil Liquefaction Surface Effects by Adel Asadi, Laurie Gaskins Baise, Christina Sanon, Magaly Koch, Snehamoy Chatterjee, Babak Moaveni

“…Visually labeling liquefaction ejecta from remotely sensed imagery is time-consuming and prone to human error and inconsistency. …”
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Maria Basalts Chronology of the Chang’E-5 Sampling Site by Zhen Xu, Dijun Guo, Jianzhong Liu

“…Based on the geochemistry of basaltic ejecta excavated by fresh craters in the mare unit, the FeO concentration threshold for mapping pure basaltic areas is 17.2 wt.%. …”
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