Results 91 to 100 of about 727,921 (273)

Spectral modeling of type II supernovae [PDF]

Astronomy & Astrophysics, 2019
We present substantial extensions to the Monte Carlo radiative transfer code TARDIS to perform spectral synthesis for type II supernovae. By incorporating a non-LTE ionization and excitation treatment for hydrogen, a full account of free–free and bound-free processes, a self-consistent determination of the thermal state and by improving the handling of
C. Vogl, S. A. Sim, U. M. Noebauer, W. E. Kerzendorf, W. Hillebrandt   +4 more
openaire   +5 more sources

Probing the Origins of Neutrino Mass with Supernova Data

, 2005
We study type II supernova signatures of neutrino mass generation via symmetry breaking at a scale in the range from keV to MeV. The scalar responsible for symmetry breaking can be thermalized in the supernova core and restore the symmetry. The neutrinos
Davoudiasl, Hooman, Huber, Patrick
core   +1 more source

Earth Matter Effects in Detection of Supernova Neutrinos [PDF]

, 2006
We calculated the matter effect, including both the Earth and supernova, on the detection of neutrinos from type II supernovae at the proposed Daya Bay reactor neutrino experiment.
Bing-Lin Young, F. D. Stacey, L. Wolfenstein, M. Freund, S. P. Mikheyev, S. P. Mikheyev, X.-H. Guo   +6 more
core   +2 more sources

Semi-supervised Learning for Photometric Supernova Classification

, 2011
We present a semi-supervised method for photometric supernova typing. Our approach is to first use the nonlinear dimension reduction technique diffusion map to detect structure in a database of supernova light curves and subsequently employ random forest
Breiman, Breiman, Breiman, Breiman, Chad M. Schafer, Chapelle, Coifman, Darren Homrighausen, Dovi Poznanski, Dubath, Falck, Freeman, Gong, Grimmett, Hastie, Homeier, Johnson, Joseph W. Richards, Kessler, Kessler, Kunz, Kuznetsova, Lafon, Newling, Nugent, Peter E. Freeman, Poznanski, Poznanski, Poznanski, Richards, Richards, Richards, Rodney, Ruppert, Sullivan, Wasserman   +35 more
core   +1 more source

The extraplanar type II supernova ASASSN-14jb in the nearby edge-on galaxy ESO 467-G051 [PDF]

Astronomy & Astrophysics, 2018
We present optical photometry and spectroscopy of the Type II supernova ASASSN-14jb, together with Very Large Telescope (VLT) Multi Unit Spectroscopic Explorer (MUSE) integral field observations of its host galaxy and a nebular-phase spectrum.
N. Meza, J. Prieto, A. Clocchiatti, L. Galbany, Joseph P. Anderson, E. Falco, C. Kochanek, H. Kuncarayakti, S. Sánchez, J. Brimacombe, T. Holoien, B. Shappee, K. Stanek, T. Thompson   +13 more
semanticscholar   +1 more source

TYPE II-P SUPERNOVAE FROM THE SDSS-II SUPERNOVA SURVEY AND THE STANDARDIZED CANDLE METHOD [PDF]

The Astrophysical Journal, 2009
Accepted for publication by ApJ; data used in this paper can be downloaded from http://sdssdp47.fnal.gov/sdsssn/photometry/SNIIp.tgz; citation errors ...
D’andrea, Chris B., Sako, Masao, Dilday, Benjamin, Frieman, Joshua A., Holtzman, Jon A., Kessler, Richard, Konishi, Kohki, Schneider, Donald P., Sollerman, Jesper, Wheeler, J. Craig, Yasuda, Naoki, Cinabro, David, Jha, Saurabh W., Nichol, Robert C., Lampeitl, Hubert, Smith, Mathew, Atlee, David W., Bassett, Bruce A., Castander, Francisco Javier, Goobar, Ariel, Miquel, Ramon, Nordin, Jakob, Ostman, Linda, Prieto, Jose Luis, Quimby, Robert, Riess, Adam G., Stritzinger, Maximilian D.   +26 more
openaire   +7 more sources

New Supernova Candidates from SDSS-DR7 of Spectral Survey

, 2009
The letter presents 25 discovered supernova candidates from SDSS-DR7 with our dedicated method, called Sample Decrease, and 10 of them were confirmed by other research groups, and listed in this letter.
A-Li Luo, Abazajian, Abazajian, Blondin, Chao Wu, Fu-Chao Wu, Liang-Ping Tu, Madgwick, Markus M, Nugent, Yong-Heng Zhao, York   +11 more
core   +1 more source

The Formation of Broad Emission Line Regions in Supernova-QSO Wind Interactions [PDF]

, 2001
We show that a cooled region of shocked supernova ejecta forms in a type II supernova-QSO wind interaction, and has a density, an ionization parameter, and a column density compatible with those inferred for the high ionization component of the broad ...
Dyson, J. E., Falle, S. A. E. G., Hartquist, T. W., Pittard, J. M.   +3 more
core   +2 more sources

Carnegie Supernova Project-II: Extending the Near-Infrared Hubble Diagram for Type Ia Supernovae to $z\sim0.1$

, 2018
The Carnegie Supernova Project-II (CSP-II) was an NSF-funded, four-year program to obtain optical and near-infrared observations of a "Cosmology" sample of $\sim100$ Type Ia supernovae located in the smooth Hubble flow ($0.03 \lesssim z \lesssim 0.10 ...
Anais, Jorge, Anderson, J. P., Ashall, C., Baltay, C., Baron, E., Burns, Christopher R., Busta, Luis, Campillay, Abdo, Castellón, Sergio, Contreras, Carlos, Corco, Carlos, Diamond, T., Folatelli, Gastón, Freedman, Wendy L., Galbany, L., Gall, Christa, Gonzalez, Consuelo, Goobar, A., Hadjiyska, Ellie, Hamuy, Mario, Hoeflich, P., Holmbo, Simon, Hsiao, E. Y., Kasliwal, Mansi, Krisciunas, Kevin, Lidman, C., Morrell, Nidia, Nugent, Peter E., Perlmutter, S., Persson, S. E., Phillips, M. M., Piro, Anthony L., Rabinowitz, David, Roth, Miguel, Ryder, Stuart D., Schmidt, Brian P., Serón, Jacqueline, Shappee, B. J., Stritzinger, Maximilian, Suntzeff, Nicholas B., Taddia, F., Torres, Simón, Uddin, Syed A., Walker, Emma S.   +43 more
core   +1 more source

SN 2016esw: A luminous Type II supernova observed within the first day after the explosion [PDF]

, 2018
We present photometry, spectroscopy, and host-galaxy integral-field spectroscopy of the Type II supernova (SN) 2016esw in CGCG~229-009 from the first day after the explosion up to 120 days.
T. D. Jaeger, L. Galbany, C. Guti'errez, A. Filippenko, Wei Zheng, T. Brink, R. Foley, S. S'anchez, S. Channa, M. D. Kouchkovsky, G. Halevi, C. Kilpatrick, Sahana Kumar, Jeffrey Molloy, Yen-Chen Pan, Timothy Ross, I. Shivvers, M. Siebert, B. Stahl, S. Stegman, Sameen Yunus   +20 more
semanticscholar   +1 more source