Results 121 to 130 of about 5,709 (225)
Characterizing the Rapid Hydrogen Disappearance in SN 2022crv: Evidence of a Continuum between Type Ib and IIb Supernova Properties
The Astrophysical JournalWe present optical and near-infrared (NIR) observations of SN 2022crv, a stripped-envelope supernova in NGC 3054, discovered within 12 hr of explosion by the Distance Less Than 40 Mpc Survey.Yize Dong, Stefano Valenti, Chris Ashall, Marc Williamson, David J. Sand, Schuyler D. Van Dyk, Alexei V. Filippenko, Saurabh W. Jha, Michael Lundquist, Maryam Modjaz, Jennifer E. Andrews, Jacob E. Jencson, Griffin Hosseinzadeh, Jeniveve Pearson, Lindsey A. Kwok, Teresa Boland, Eric Y. Hsiao, Nathan Smith, Nancy Elias-Rosa, Shubham Srivastav, Stephen Smartt, Michael Fulton, WeiKang Zheng, Thomas G. Brink, Melissa Shahbandeh, K. Azalee Bostroem, Emily Hoang, Daryl Janzen, Darshana Mehta, Nicolas Meza, Manisha Shrestha, Samuel Wyatt, Katie Auchettl, Christopher R. Burns, Joseph Farah, Lluís Galbany, Estefania Padilla Gonzalez, Joshua Haislip, Jason T. Hinkle, D. Andrew Howell, Thomas De Jaeger, Vladimir Kouprianov, Sahana Kumar, Jing Lu, Curtis McCully, Shane Moran, Nidia Morrell, Megan Newsome, Craig Pellegrino, Abigail Polin, Daniel E. Reichart, B. J. Shappee, Maximilian D. Stritzinger, Giacomo Terreran, M. A. Tucker +54 moredoaj +1 more sourceOptical and Near-infrared Nebular-phase Spectroscopy of SN 2024ggi: Constraints on the Structure of the Inner Ejecta, Progenitor Mass, and Dust
The Astrophysical JournalWe present optical and near-infrared (NIR) spectroscopic observations of the nearby Type II supernova SN 2024ggi ranging from 250 to 581 days after the explosion.Emilio Hueichapán, Régis Cartier, Jose L. Prieto, Carlos Contreras, Aleksandar Cikota, Thallis Pessi, Franz E. Bauer, Giuliano Pignata, Camila Cardenas, Sethulakshmi Vazhayil +9 moredoaj +1 more sourceNucleosynthesis in Core-Collapse Supernovae
, 2018 The nucleosynthesis which occurs in core-collapse supernovae (CCSN) is one of the most important sources of elements in the universe. Elements from Oxygen through Iron come predominantly from supernovae, and contributions of heavier elements are also ...Stevenson, Taylorcore Prompt Convection in Core Collapse Supernovae
, 1994 We investigate prompt convection in core collapse supernovae and its consequences for the late-time shock evolution and supernova outcome. We examine the evolution of the core prior to the onset of convection and find that the negative entropy gradients ...Bruenn, Stephen W., Mezzacappa, Anthony, Stephen W. Bruenn, Anthony Mezzacappa +3 morecore +1 more sourceHubble Space Telescope Deep Upper Limits Rule out a Surviving Massive Binary Companion to the Type Ic Supernova 2012fh
The Astrophysical JournalCurrent explanations of the mass-loss mechanism for stripped-envelope supernovae (SNe) remain divided between single and binary progenitor systems. Here we obtain deep ultraviolet (UV) imaging with the Hubble Space Telescope (HST) of the Type Ic SN ...Benjamin F. Williams, Emmanouil Zapartas, Ori D. Fox, K. Azalee Bostroem, Jianing Su, Brad Koplitz, Schuyler D. Van Dyk, Maria R. Drout, Dimitris Souropanis, Dan Milisavljevic, Stuart D. Ryder, Selma E. de Mink, Nathan Smith, Andrew Dolphin, Alexei V. Filippenko, Jeff J. Andrews, Max M. Briel, Seth Gossage, Matthias U. Kruckow, Camille Liotine, Philipp M. Srivastava, Elizabeth Teng +21 moredoaj +1 more sourceEnabling Early Transient Discovery in LSST via Difference Imaging with DECam
The Astrophysical Journal LettersWe present SLIDE , a pipeline that enables transient discovery in data from the Vera C. Rubin Observatory’s Legacy Survey of Space and Time (LSST), using archival images from the Dark Energy Camera as templates for difference imaging.Yize Dong, Kaylee de Soto, V. Ashley Villar, Anya Nugent, Alex Gagliano, K. Azalee Bostroem, Anastasia Alexov, Éric Aubourg, Farrukh Azfar, Alexandre Boucaud, Andrew Bradshaw, Johann Cohen-Tanugi, Sylvie Dagoret-Campagne, Philip Daly, Felipe Daruich, Peter E. Doherty, Holger Drass, Orion Eiger, Leanne P. Guy, Patrick A. Hascall, Željko Ivezić, Fabrice Jammes, M. James Jee, Tim Jenness, Steven M. Kahn, Yijung Kang, Lee S. Kelvin, Ivan V. Kotov, Gábor Kovács, Laurent Le Guillou, Shuang Liang, Mostafa Lutfi, Morgan May, Guillem Megias Homar, Marc Moniez, Freddy Muñoz Arancibia, Erfan Nourbakhsh, Hye Yun Park, John R. Peterson, Andrés A. Plazas Malagón, Daniel Polin, Bruno C. Quint, Tiago Ribeiro, Vincent J. Riot, Cécile Roucelle, Bruno O. Sánchez, David Sanmartim, Jacques Sebag, Nima Sedaghat, Richard A. Shaw, Alysha Shugart, Ioana Sotuela Elorriaga, Krzysztof Suberlak, John D. Swinbank, Sandrine Thomas, J. Anthony Tyson, Wouter van Reeven, Charlotte Ward, Christopher Z. Waters, Oliver Wiecha, W. M. Wood-Vasey +60 moredoaj +1 more sourceSN 2023taz: Implications for the UV Diversity of Superluminous Supernovae
The Astrophysical JournalSuperluminous supernovae (SLSNe) are some of the brightest explosions in the Universe, representing the extremes of stellar deaths. At the upper end of their distribution is SN 2023taz, in a dwarf galaxy at z = 0.407.Aysha Aamer, Matt Nicholl, Charlotte Angus, Shubham Srivastav, Jeff Cooke, Natasha Van Bemmel, Mark Suhr, Frédérick Poidevin, Stefan Geier, Joseph P. Anderson, Thomas de Boer, Kenneth C. Chambers, Ting-Wan Chen, Mariusz Gromadzki, Claudia P. Gutiérrez, Erkki Kankare, Réka Könyves-Tóth, Chien-Cheng Lin, Thomas B. Lowe, Eugene Magnier, Paolo Mazzali, Kyle Medler, Paloma Minguez, Tomás E. Müller-Bravo, Ben Warwick +24 moredoaj +1 more source