Results 1 to 10 of about 6,408 (225)

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

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

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

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

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

Cosmology Constraints from Type Ia Supernova Simulations of the Nancy Grace Roman Space Telescope Strategy Recommended by the High-Latitude Time Domain Survey Definition Committee

The Astrophysical Journal
Within the next few years, the upcoming Nancy Grace Roman Space Telescope will be gathering data for the High-Latitude Time Domain Survey (HLTDS) that will be used to significantly improve the Type Ia supernova measurement of the dark energy equation of ...
Richard Kessler, Rebekah Hounsell, Bhavin Joshi, David Rubin, Masao Sako, Rebecca Chen, Vivian Miranda, Benjamin M. Rose   +7 more
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

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

Uncovering a population of gravitational lens galaxies with magnified standard candle SN Zwicky. [PDF]

Nat Astron, 2023
Goobar A, Johansson J, Schulze S, Arendse N, Carracedo AS, Dhawan S, Mörtsell E, Fremling C, Yan L, Perley D, Sollerman J, Joseph R, Hinds KR, Meynardie W, Andreoni I, Bellm E, Bloom J, Collett TE, Drake A, Graham M, Kasliwal M, Kulkarni SR, Lemon C, Miller AA, Neill JD, Nordin J, Pierel J, Richard J, Riddle R, Rigault M, Rusholme B, Sharma Y, Stein R, Stewart G, Townsend A, Vinko J, Wheeler JC, Wold A.   +37 more
europepmc   +1 more source

The Remarkable Late-time Flux Excess in Hubble Space Telescope Observations of the Type Iax Supernova 2012Z

The Astrophysical Journal
Type Iax supernovae (SNe Iax) are thermonuclear explosions of white dwarfs (WDs), peculiar and underluminous compared to the normal Type Ia supernovae (SNe).
Michaela Schwab, Lindsey A. Kwok, Saurabh W. Jha, Curtis McCully, Or Graur, Ryan J. Foley, Yssavo Camacho-Neves, Max J. B. Newman, Conor Larison, Huei Sears   +9 more
doaj   +1 more source