Results 91 to 100 of about 823 (184)

The Hourglass Simulation: A Catalog for the Roman High-latitude Time-domain Core Community Survey

The Astrophysical Journal
We present a simulation of the time-domain catalog for the Nancy Grace Roman Space Telescope’s High-Latitude Time-Domain Core Community Survey. This simulation, called the Hourglass simulation, uses the most up-to-date spectral energy distribution models
B. M. Rose, M. Vincenzi, R. Hounsell, H. Qu, L. Aldoroty, D. Scolnic, R. Kessler, P. Macias, D. Brout, M. Acevedo, R. C. Chen, S. Gomez, E. Peterson, D. Rubin, M. Sako, the Roman Supernova Project Infrastructure Team   +15 more
doaj   +1 more source

Effect of dynamical noncommutativity on the limiting mass of white dwarfs

Physics Letters B, 2019
The discovery of the existence of an upper bound on the mass of a white dwarf star is considered as one of the finest of twentieth century astrophysics.
Sayan Kumar Pal, Partha Nandi
doaj   +1 more source

Testing the LSST Difference Image Analysis Pipeline Using Synthetic Source Injection Analysis

The Astrophysical Journal
We evaluate the performance of the Legacy Survey of Space and Time Science Pipelines Difference Image Analysis (DIA) on simulated images. By adding synthetic sources to galaxies on images, we trace the recovery of injected synthetic sources to evaluate ...
S. Liu, W. M. Wood-Vasey, R. Armstrong, G. Narayan, B. O. Sánchez, The Dark Energy Science Collaboration   +5 more
doaj   +1 more source

Type Ia Supernovae from First-generation Stars

The Astrophysical Journal
Type Ia supernovae (SNe Ia) discovered at redshift z ≲ 2.5 are presumed to be produced from Population I/II stars. In this work, we investigate the production of SNe Ia from Population III binaries in the cosmological framework.
Zhenwei Li, Lifan Wang, Zhanwen Han, Xuefei Chen   +3 more
doaj   +1 more source

ISEV2025 Abstract Book

Journal of Extracellular Vesicles, Volume 14, Issue S1, October 2025.
wiley   +1 more source

Union through UNITY: Cosmology with 2000 SNe Using a Unified Bayesian Framework

The Astrophysical Journal
Type Ia supernovae (SNe Ia) were instrumental in establishing the acceleration of the Universe’s expansion. By virtue of their combination of distance reach, precision, and prevalence, they continue to provide key cosmological constraints, complementing ...
David Rubin, Greg Aldering, Marc Betoule, Andy Fruchter, Xiaosheng Huang, Alex G. Kim, Chris Lidman, Eric Linder, Saul Perlmutter, Pilar Ruiz-Lapuente, Nao Suzuki   +10 more
doaj   +1 more source

Characterizing the Roman Grism Redshift Efficiency of Type Ia Supernova Host Galaxies for the High-latitude Time-domain Survey

The Astrophysical Journal
The High-latitude Time-domain Survey (HLTDS) for the Nancy Grace Roman Space Telescope (Roman) will discover thousands of high-redshift Type Ia supernovae (SNe Ia) to set generation-defining cosmological constraints on dark energy. To construct the Roman
Rebecca C. Chen, Zhiyuan Guo, Dan Scolnic, Bhavin Joshi, Richard Kessler, Lluís Galbany, Rebekah Hounsell, Diane M. Markoff, Benjamin M. Rose, David Rubin, The Roman Supernova Cosmology Project Infrastructure Team   +10 more
doaj   +1 more source

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

Carnegie Supernova Project: Fast-declining Type Ia Supernovae as Cosmological Distance Indicators

The Astrophysical Journal
In this paper, the suitability of fast-declining Type Ia supernovae (SNe Ia) as cosmological standard candles is examined utilizing a “Hubble Flow” sample of 43 of these objects observed by the Carnegie Supernova Project (CSP).
M. M. Phillips, Syed A. Uddin, Christopher R. Burns, Nicholas B. Suntzeff, C. Ashall, E. Baron, L. Galbany, P. Hoeflich, E. Y. Hsiao, Nidia Morrell, S. E. Persson, Maximilian Stritzinger, Carlos Contreras, Wendy L. Freedman, Kevin Krisciunas, S. Kumar, J. Lu, Anthony L. Piro, M. Shahbandeh   +18 more
doaj   +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