Results 31 to 40 of about 35,122 (152)

A review of type Ia supernova spectra [PDF]

, 2014
SN 2011fe was the nearest and best-observed type Ia supernova in a generation, and brought previous incomplete datasets into sharp contrast with the detailed new data. In retrospect, documenting spectroscopic behaviors of type Ia supernovae has been more
Friesen, B., Parrent, J., Parthasarathy, M.   +2 more
core   +2 more sources

Flight of the Bumblebee: the Early Excess Flux of Type Ia Supernova 2023bee Revealed by TESS, Swift, and Young Supernova Experiment Observations

The Astrophysical Journal
We present high-cadence ultraviolet through near-infrared observations of the Type Ia supernova (SN Ia) 2023bee at D = 32 ± 3 Mpc, finding excess flux in the first days after explosion, particularly in our 10 minutes cadence TESS light curve and Swift UV
Qinan Wang, Armin Rest, Georgios Dimitriadis, Ryan Ridden-Harper, Matthew R. Siebert, Mark Magee, Charlotte R. Angus, Katie Auchettl, Kyle W. Davis, Ryan J. Foley, Ori D. Fox, Sebastian Gomez, Jacob E. Jencson, David O. Jones, Charles D. Kilpatrick, Justin D. R. Pierel, Anthony L. Piro, Abigail Polin, Collin A. Politsch, César Rojas-Bravo, Melissa Shahbandeh, V. Ashley Villar, Yossef Zenati, C. Ashall, Kenneth C. Chambers, David A. Coulter, Thomas de Boer, Nico DiLullo, Christa Gall, Hua Gao, Eric Y. Hsiao, Mark E. Huber, Luca Izzo, Nandita Khetan, Natalie LeBaron, Eugene A. Magnier, Kaisey S. Mandel, Peter McGill, Hao-Yu Miao, Yen-Chen Pan, Catherine P. Stevens, Jonathan J. Swift, Kirsty Taggart, Grace Yang   +43 more
doaj   +1 more source

Propagating Uncertainties in the SALT3 Model-training Process to Cosmological Constraints

The Astrophysical Journal Supplement Series, 2023
Type Ia supernovae (SNe Ia) are standardizable candles that must be modeled empirically to yield cosmological constraints. To understand the robustness of this modeling to variations in the model-training procedure, we build an end-to-end pipeline to ...
M. Dai, D. O. Jones, W. D. Kenworthy, R. Kessler, J. D. R. Pierel, R. J. Foley, S. W. Jha, D. M. Scolnic   +7 more
doaj   +1 more source

The Observations of Type Ia Supernovae

, 2000
The past ten years have seen a tremendous increase in the number of Type Ia supernovae discovered and in the quality of the basic data presented.
Suntzeff, Nicholas B.
core   +1 more source

Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications [PDF]

, 1997
The ultimate fate of the universe, infinite expansion or a big crunch, can be determined by measuring the redshifts, apparent brightnesses, and intrinsic luminosities of very distant supernovae.
A Goobar, A Kim, A. Fruchter, A. G. Kim, AG Riess, AG Riess, B Leibundgut, B Leibundgut, B Leibundgut, B Schmidt, B Whitmore, B. Schaefer, C. Lidman, C. R. Pennypacker, D Branch, D Branch, D Burstein, D Schramm, D. E. Groom, E Cappellaro, F Patat, G Goldhaber, G. Aldering, G. Goldhaber, I. M. Hook, J Holtzman, LA Wells, M Hamuy, M Stiavelli, M. Della Valle, M. Y. Kim, MM Phillips, MS Bessell, N. Panagia, N. Walton, P Nugent, P. Nugent, P. Ruiz-Lapuente, R. A. Knop, R. G. McMahon, R. Pain, R. S. Ellis, S Carrol, S Perlmutter, S Perlmutter, S Perlmutter, S Perlmutter, S. Deustua, S. Fabbro, S. Perlmutter   +49 more
core   +5 more sources

Early Lightcurves of Type Ia Supernovae Are Consistent with Nondegenerate Progenitor Companions

The Astrophysical Journal
If Type Ia supernovae (SNe Ia) result from a white dwarf being ignited by Roche-lobe overflow from a nondegenerate companion, then as the SN explosion runs into the companion star its ejecta will be shocked, causing an early blue excess in the lightcurve.
J. Burke, M. Andrews, D. A. Howell, D. J. Sand, R. C. Amaro, P. J. Brown, J. E. Andrews, K. A. Bostroem, Y. Dong, J. Haislip, D. Hiramatsu, G. Hosseinzadeh, V. Kouprianov, M. J. Lundquist, C. McCully, C. Pellegrino, D. Reichart, L. Tartaglia, S. Valenti, S. Wyatt, S. Yang   +20 more
doaj   +1 more source

Gravitational lensing of Type Ia supernovae

, 2000
Recently, Holz and Wald (1998) have presented a method for determining gravitational lensing effects in inhomogeneous universes. Their use of realistic galaxy models has been limited to the singular, truncated isothermal sphere with a fixed mass. In this
Goliath, M., Moertsell, E.
core   +1 more source

Detection and classification of supernovae beyond z~2 redshift with the James Webb Space Telescope [PDF]

, 2019
Future time-domain surveys for transient events in the near- and mid-infrared bands will significantly extend our understanding about the physics of the early Universe.
Regos, Eniko, Vinko, Jozsef
core   +2 more sources

Evidence for short-lived SN Ia progenitors [PDF]

, 2008
We use the VESPA algorithm and spectra from the Sloan Digital Sky Survey to investigate the star formation history of the host galaxies of 257 Type Ia supernovae.
A. Heavens, Adelman-McCarthy, Anderson, Astier, Benford, Bronder, D. N. Spergel, Filippenko, Gallagher, Guy, Hachisu, Hamuy, Hamuy, Hamuy, Hamuy, Howell, Howell, Jimenez, M. A. Strauss, Mannucci, Mannucci, Maoz, Neill, Oemler, Perlmutter, Phillips, Pinsonneault, Poelarends, Pollas, Prieto, R. Jimenez, R. Tojeiro, Richmond, Riess, Riess, Sarkar, Scannapieco, Sullivan, Sullivan, Timmes, Tojeiro, Tripp, van den Bergh, Wood-Vasey, Zheng, É. Aubourg   +45 more
core   +6 more sources

SN 2022joj: A Potential Double Detonation with a Thin Helium Shell

The Astrophysical Journal
We present photometric and spectroscopic data for SN 2022joj, a nearby peculiar Type Ia supernova (SN Ia) with a fast decline rate (Δ m _15,B = 1.4 mag).
E. Padilla Gonzalez, D. A. Howell, G. Terreran, C. McCully, M. Newsome, J. Burke, J. Farah, C. Pellegrino, K. A. Bostroem, G. Hosseinzadeh, J. Pearson, D. J. Sand, M. Shrestha, N. Smith, Y. Dong, N. Meza Retamal, S. Valenti, S. Boos, K. J. Shen, D. Townsley, L. Galbany, L. Piscarreta, R. J. Foley, M. J. Bustamante-Rosell, D. A. Coulter, R. Chornock, K. W. Davis, C. B. Dickinson, D. O. Jones, J. Kutcka, X. K. Le Saux, C. R. Rojas-Bravo, K. Taggart, S. Tinyanont, G. Yang, S. W. Jha, R. Margutti   +36 more
doaj   +1 more source