Results 61 to 70 of about 11,937,910 (228)

Long-rising Type II Supernovae in the Zwicky Transient Facility Census of the Local Universe

The Astrophysical Journal, 2023
SN 1987A was an unusual hydrogen-rich core-collapse supernova originating from a blue supergiant star. Similar blue supergiant explosions remain a small family of events, and are broadly characterized by their long rises to peak.
Tawny Sit, Mansi M. Kasliwal, Anastasios Tzanidakis, Kishalay De, Christoffer Fremling, Jesper Sollerman, Avishay Gal-Yam, Adam A. Miller, Scott Adams, Robert Aloisi, Igor Andreoni, Matthew Chu, David Cook, Kaustav Kashyap Das, Alison Dugas, Steven L. Groom, Anna Y. Q. Ho, Viraj Karambelkar, James D. Neill, Frank J. Masci, Michael S. Medford, Josiah Purdum, Yashvi Sharma, Roger Smith, Robert Stein, Lin Yan, Yuhan Yao, Chaoran Zhang   +27 more
doaj   +1 more source

On the Destruction and Humanitarianisation of the Health System in Gaza and the Need for a Biopolitical Bioethics

Bioethics, Volume 40, Issue 8, Page 793-807, October 2026.
ABSTRACT This paper examines Israel's destruction and ‘humanitarianisation’ of Palestinian health systems, arguing that this should be understood as an instance of ‘necropolitics,’ as conceived by Achille Mbembe. We review the extensive, long‐term destruction of health systems in Palestine before 7 October 2023 and the catastrophic acceleration of that
Mohammad Salaymeh, Arianne Shahvisi, Sohail Jannesari   +2 more
wiley   +1 more source

Shock-cooling Constraints via Early-time Observations of the Type IIb SN 2022hnt

The Astrophysical Journal
We report the results of a rapid follow-up campaign on the Type IIb supernova (SN) 2022hnt. We present a daily, multiband, photometric follow-up using the Las Cumbres Observatory, the Zwicky Transient Facility, the orbiting Swift observatory, and the ...
Joseph R. Farah, D. Andrew Howell, Giacomo Terreran, Ido Irani, Jonathan Morag, Craig Pellegrino, Curtis McCully, Megan Newsome, Estefania Padilla Gonzalez, K. Azalee Bostroem, Griffin Hosseinzadeh, Moira Andrews, Logan Prust, Daichi Hiramatsu   +13 more
doaj   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

Advanced Materials, Volume 38, Issue 51, 11 September 2026.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti, Carla Boix‐Constant, Iván Gómez‐Muñoz, Diego López‐Alcalá, Sergio Revuelta, Marco Ballabio, Vasileios Balos, José J. Baldoví, Enrique Cánovas, Josep Canet‐Ferrer, Guillermo Mínguez Espallargas, Samuel Mañas‐Valero, Eugenio Coronado   +12 more
wiley   +1 more source

Bolometric Luminosities of Peculiar Type II-P Supernovae [PDF]

, 2018
In this work, I analyze the bolometric luminosities of several peculiar Type II-P supernovae which are thought to originate from the same class of blue supergiant progenitor stars as the famous SN 1987A.
Lusk, Jeremy
core  

Type I supernovae: an observer’s view [PDF]

, 1980
The distinguishing characteristics of Type I supernovae are discussed. Some physical and chemical properties of Type I and Type II supernovae are presented and compared, and processes involved in a supernova explosion are considered.Peer Reviewedhttp ...
Robert P. Kirshner, Kirshner, Robert P.
core   +1 more source

Spectropolarimetric Evolution of SN 2023ixf: An Asymmetric Explosion in a Confined Aspherical Circumstellar Medium

The Astrophysical Journal
We present complete spectropolarimetric coverage of the Type II supernova (SN) 2023ixf, ranging from 1 to 120 days after explosion. Polarimetry was obtained with the Kast double spectrograph on the Shane 3 m telescope at Lick Observatory.
Sergiy S. Vasylyev, Luc Dessart, Yi Yang, Alexei V. Filippenko, Kishore C. Patra, Thomas G. Brink, Lifan Wang, Ryan Chornock, Raffaella Margutti, Elinor L. Gates, Adam J. Burgasser, Huei Sears, Preethi R. Karpoor, Natalie LeBaron, Emma Softich, Christopher A. Theissen, Eli Wiston, WeiKang Zheng   +17 more
doaj   +1 more source

Radiative Acceleration of Dense Circumstellar Material in Interacting Supernovae

The Astrophysical Journal, 2023
Early-time light curves/spectra of some hydrogen-rich supernovae (SNe) provide solid evidence of the existence of confined, dense circumstellar matter (CSM) surrounding dying massive stars. We numerically and analytically study the radiative acceleration
Daichi Tsuna, Kohta Murase, Takashi J. Moriya   +2 more
doaj   +1 more source

Collisionless Shocks: Contemporary State After Three Quarters of a Century of Research

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract The collisionless shock research started in the late 1950s. Since then, plenty of data have been accumulated due to the large number of missions in the heliosphere, providing in situ measurements of the fields and particles. The quality of these measurements has vastly improved, especially in the last two decades.
M. Gedalin, M. Balikhin, V. Krasnoselskikh   +2 more
wiley   +1 more source

Misure di Distanza in Cosmologia e Supernovae di Tipo Ia [PDF]

, 2022
The observation that Type Ia Supernovae are fainter than expected given their redshift has led to the conclusion that the expansion of the universe is accelerating.
De Leone, Matteo
core