Results 131 to 140 of about 7,025,957 (218)

Type Ia Supernovae Inside Planetary Nebulae (SNIPs)

, 2015
We estimate that the fraction of type Ia supernovae (SNe Ia) exploding inside planetary nebulae (PNe), termed SNIPs, is at least 20%. We based this on (i) sodium absorption lines in some SN Ia, (ii) hydrogen emission line from circumstellar matter, and ...
D. Tsebrenko, N. Soker
core   +1 more source

1991T-like Supernovae

The Astrophysical Journal Supplement Series
Understanding the nature of the luminous 1991T-like supernovae (SNe) is of great importance to SN cosmology as they are likely to have been more common in the early Universe.
M. M. Phillips, C. Ashall, Peter J. Brown, L. Galbany, M. A. Tucker, Christopher R. Burns, Carlos Contreras, P. Hoeflich, E. Y. Hsiao, S. Kumar, Nidia Morrell, Syed A. Uddin, E. Baron, Wendy L. Freedman, Kevin Krisciunas, S. E. Persson, Anthony L. Piro, B. J. Shappee, Maximilian Stritzinger, Nicholas B. Suntzeff, Sudeshna Chakraborty, R. P. Kirshner, J. Lu, G. H. Marion, Abigail Polin, M. Shahbandeh   +25 more
doaj   +1 more source

Double-degenerate Carbon-Oxygen and Oxygen-Neon White Dwarf Mergers: A New Mechanism for Faint and Rapid Type Ia Supernovae. [PDF]

Astrophys J, 2018
Kashyap R, Haque T, Lorén-Aguilar P, García-Berro E, Fisher R.   +4 more
europepmc   +1 more source

Multi-dimensional models of Type Ia supernovae

, 2015
Type Ia supernovae (SNe Ia) exhibit a significant diversity in their observables suggesting that a variety of progenitor channels and/or explosion mechanisms contribute to this class of objects. Understanding the origin of the diversity is essential for
Ropke, Friedrich, Hillebrandt, Wolfgang, Sim, Stuart A, Pakmor, R, Fink, M, Seitenzahl, I. R., Kromer, M   +6 more
core  

Can dwarf novae produce type Ia supernovae?

Astronomy & Astrophysics
Context. Accreting white dwarfs (WDs) are considered some of the most promising progenitor candidates of type Ia supernovae (SNe Ia). Dwarf novae (DNe), a subclass of cataclysmic variables, consist of a CO WD accretor and a low-mass donor star, which can
Li R., Wu C., Dai Z., Wang B.
doaj   +1 more source

Marginal evidence for cosmic acceleration from Type Ia supernovae. [PDF]

Sci Rep, 2016
Nielsen JT, Guffanti A, Sarkar S.
europepmc   +1 more source

Long-term light variations of type-Ia supernovae candidates

, 2021
Tip-Ia süpernovaları, bileşeninden madde alan Kabron-Oksijen beyaz cücesini barındıran bir çift yıldız sisteminde beyaz cücenin patlaması ile oluşan yüksek enerjili termonükleer patlamalar olarak kabul görmektedir.
Burgaz, Umut
core  

SN 2022erq: A Superluminous Thermonuclear Supernova with Escalating Preexplosion Mass Loss

The Astrophysical Journal
We present a photometric and spectroscopic study of the superluminous Type Ia supernova SN 2022erq. Its early spectra, dominated by iron-group elements with weak intermediate-mass features, might indicate highly efficient nuclear burning, broadly similar
Qian Zhai, Jujia Zhang, Xiaofeng Wang, A. Pastorello, Alexei V. Filippenko, József Vinkó, Thomas G. Brink, Yunkun Han, G. Valerin, N. Elias Rosa, Yongzhi Cai, Weili Lin, Yi Yang, WeiKang Zheng, Xiangcun Meng, Chengyuan Wu, Liping Li, Zeyi Zhao, J. Craig Wheeler, Jose L. Prieto, Jialian Liu, Gaici Li, Shengyu Yan, Fangzhou Guo, C. P. Gutiérrez, E. Kankare, Peter Lundqvist, S. Moran, A. Reguitti, I. Salmaso, M. D. Stritzinger, S. Williams, J.-W. Zhao, D.-D Shi, Jianrong Shi, Z.-H. Peng, Tengfei Song, Yongyuan Xiang, Attila Bódi, Borbála Cseh, Ágoston Horti-Dávid, Csilla Kalup, Levente Kriskovics, Réka Könyves-Tóth, András Pál, Bálint Seli, Ádám Sódor, Róbert Szakáts, P. A. Mazzali, T. Kravtsov, K. Matilainen, T. M. Reynolds, L. Galbany, Bo Wang   +53 more
doaj   +1 more source

Type Ia supernovae

This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by Ilya Mandel, section editor Jeffrey Andrews) to be published by Elsevier as a Reference Module. 18 pages, 7 figures.
openaire   +3 more sources

Line Polarization of Si ii λ6355 Å in Type Ia Supernovae: A New Statistical Approach to Probe the Explosion Physics and Diversity

The Astrophysical Journal Letters
Spectropolarimetry provides a unique probe of ejecta asphericities, offering direct insights into the underlying explosion physics of Type Ia supernovae (SNe Ia).
Aleksandar Cikota, Peter Hoeflich, Dietrich Baade, Ferdinando Patat, Lifan Wang, J. Craig Wheeler, Yi Yang, Elham Fereidouni, Divya Mishra   +8 more
doaj   +1 more source