Results 81 to 90 of about 6,421 (225)

Type Ia Supernova Progenitor Properties and their Host Galaxies

The Astrophysical Journal
We present an eigenfunction method to analyze 161 visual light curves (LCs) of Type Ia supernovae (SNe Ia) obtained by the Carnegie Supernova Project to characterize their diversity and host-galaxy correlations.
Sudeshna Chakraborty, Benjamin Sadler, Peter Hoeflich, Eric Y. Hsiao, M. M. Phillips, C. R. Burns, T. Diamond, I. Dominguez, L. Galbany, S. A. Uddin, C. Ashall, K. Krisciunas, S. Kumar, T. B. Mera, N. Morrell, E. Baron, C. Contreras, M. D. Stritzinger, N. B. Suntzeff   +18 more
doaj   +1 more source

A JWST Near- and Mid-infrared Nebular Spectrum of the Type Ia Supernova 2021aefx

The Astrophysical Journal Letters, 2023
We present JWST near-infrared (NIR) and mid-infrared (MIR) spectroscopic observations of the nearby normal Type Ia supernova (SN) SN 2021aefx in the nebular phase at +255 days past maximum light.
Lindsey A. Kwok, Saurabh W. Jha, Tea Temim, Ori D. Fox, Conor Larison, Yssavo Camacho-Neves, Max J. Brenner Newman, Justin D. R. Pierel, Ryan J. Foley, Jennifer E. Andrews, Carles Badenes, Barnabas Barna, K. Azalee Bostroem, Maxime Deckers, Andreas Flörs, Peter Garnavich, Melissa L. Graham, Or Graur, Griffin Hosseinzadeh, D. Andrew Howell, John P. Hughes, Joel Johansson, Sarah Kendrew, Wolfgang E. Kerzendorf, Keiichi Maeda, Kate Maguire, Curtis McCully, John T. O’Brien, Armin Rest, David J. Sand, Melissa Shahbandeh, Louis-Gregory Strolger, Tamás Szalai, Chris Ashall, E. Baron, Chris R. Burns, James M. DerKacy, Tyco Mera Evans, Alec Fisher, Lluís Galbany, Peter Hoeflich, Eric Hsiao, Thomas de Jaeger, Emir Karamehmetoglu, Kevin Krisciunas, Sahana Kumar, Jing Lu, Justyn Maund, Paolo A. Mazzali, Kyle Medler, Nidia Morrell, Mark. M. Phillips, Benjamin J. Shappee, Maximilian Stritzinger, Nicholas Suntzeff, Charles Telesco, Michael Tucker, Lifan Wang   +57 more
doaj   +1 more source

Modeling Type Ia supernova explosions

Progress in Particle and Nuclear Physics, 2011
Abstract Despite their astrophysical significance–as a major contributor to cosmic nucleosynthesis and as distance indicators in observational cosmology–Type Ia supernovae lack theoretical explanation. Not only is the explosion mechanism complex due to the interaction of (potentially turbulent) hydrodynamics and nuclear reactions, but even the ...
Ropke, F. K., Seitenzahl, I. R., Benitez, S, Fink, M, Pakmor, R, Kromer, M, Sim, Stuart A, Ciaraldi-Schoolmann, F, Hillebrandt, Wolfgang   +8 more
openaire   +3 more sources

Luminosity distributions of Type Ia supernovae [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
We have assembled a dataset of 165 low redshift ...
Ashall, C, Mazzali, PA, Sasdelli, M, Prentice, SJ   +3 more
openaire   +5 more sources

Zehn Jahre Gaia‐Messungen: Die hochgenaue Kartierung des Himmels

Physik in unserer Zeit, Volume 56, Issue 4, Page 175-183, July 2025.
Das astrometrische Weltraumobservatorium Gaia der Europäischen Weltraumorganisation hat die astrometrische Forschung revolutioniert, indem es unter anderem präzise Positionen, Bewegungen und Entfernungen von fast zwei Milliarden Himmelsobjekten gemessen hat. Damit stellt es wertvolle Daten für fast alle Gebiete der Astrophysik bereit. Nach dem Ende der
Stefan Jordan
wiley   +1 more source

Cosmological Dynamics of Interacting Dark Energy and Dark Matter in f(Q)$f(Q)$ Gravity

Fortschritte der Physik, Volume 73, Issue 5, May 2025.
Abstract In this work, the behavior of interacting dark energy (DE) and dark matter (DM) within a model of f(Q)$f(Q)$ gravity is explored, employing the standard framework of dynamical system analysis. The power‐law f(Q)$f(Q)$ model is considered, incorporating two different forms of interacting DE and DM: 3αHρm$3\alpha H\rho _m$ and α3HρmρDE$\frac ...
Gaurav N. Gadbail, Simran Arora, Phongpichit Channuie, P. K. Sahoo   +3 more
wiley   +1 more source

Cosmology with Type Ia Supernovae and the ZTF survey

, 2023
International audienceI will present the construction of a Hubble diagram, especially the standardisation of Type Ia Supernovae luminosity. I will then talk about the ongoing ZTF survey, which is the current state of the art low redshift survey.
Gignolin, M.
core  

A Type Ia Supernova near a Globular Cluster in the Early-type Galaxy NGC 5353

The Astrophysical Journal Letters
No progenitor of a Type Ia supernova (SN Ia) is known, but in old-population early-type galaxies, one may find SNe Ia associated with globular clusters, yielding a population age and metallicity.
Joel N. Bregman, Oleg Y. Gnedin, Patrick O. Seitzer, Zhijie Qu   +3 more
doaj   +1 more source

The physics of flames in Type Ia supernovae

Journal of Physics: Conference Series, 2005
We extend a low Mach number hydrodynamics method developed for terrestrial combustion, to the study of thermonuclear flames in Type Ia supernovae. We discuss the differences between 2-D and 3-D Rayleigh-Taylor unstable flame simulations, and give detailed diagnostics on the turbulence, showing that the kinetic energy power spectrum obeys Bolgiano ...
Zingale, M, Woosley, SE, Bell, JB, Day, MS, Rendleman, CA   +4 more
openaire   +4 more sources

Multi‐isotope (N, O, Ti, and Cr) study of C1 and CM‐like clasts—Probing unsampled C1 material

Meteoritics &Planetary Science, Volume 60, Issue 5, Page 1073-1094, May 2025.
Abstract A multi‐element isotope (N, O, Ti, and Cr) study was conducted on C1 and CM‐like clasts hosted in achondrites and chondrite breccias to understand the genesis of these chondritic clasts. The mineralogy, O, and N isotopes confirm that CM‐like clasts in howardites and polymict eucrites closely resemble CM chondrite‐like material.
Markus Patzek, Yogita Kadlag, Miriam Rüfenacht, Evelyn Füri, Andreas Pack, Addi Bischoff, Harry Becker, Robbin Visser, Timm John, Maria Schönbächler   +9 more
wiley   +1 more source