Browsing Institutt for teoretisk astrofysikk by Author "Avila, Santiago"
Now showing items 1-12 of 12
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Lemos, Pablo; Raveri, Marco; Campos, A.; Park, Y.; Chang, C.; Weaverdyck, Noah; Huterer, Dragan; Liddle, A. R.; Blazek, J.; Cawthon, Ross; Choi, A.; DeRose, J.; Dodelson, Scott; Doux, Cyrille; Gatti, M.; Gruen, Daniel; Harrison, Ian; Krause, Elisabeth; Lahav, Ofer; MacCrann, Niall; Muir, J.; Prat, Judit; Rau, Markus Michael; Rollins, R. P.; Samuroff, Simon; Zuntz, Joseph; Aguena, Michel; Allam, Sahar; Annis, James; Avila, Santiago; Bacon, D.; Bernstein, Gary M.; Bertin, Emmanuel; Brooks, D.; Burke, David L.; Carnero Rosell, Aurelio; Carrasco Kind, Matias; Carretero, Jorge; Castander, Francisco Javier; Conselice, Christopher; Costanzi, Matteo; Crocce, Martin; Pereira, Maria Elidaiana da Silva; Davis, Tamara M.; De Vicente, Juan; Desai, S.; Diehl, Herman T.; Doel, Peter; Eckert, Kathleen; Eifler, Tim F.; Elvin-Poole, J.; Everett, Spencer; Evrard, August E.; Ferrero, Ismael; Ferté, Agnès; Flaugher, Brenna; Fosalba, Pablo; Frieman, Josh; García-Bellido, Juan; Gaztañaga, Enrique; Gerdes, David W.; Giannantonio, Tommaso; Gruendl, Robert A.; Gschwend, Julia; Gutierrez, G.; Hartley, William G.; Hinton, Samuel R.; Hollowood, Devon L.; Honscheid, Klaus; Hoyle, Ben; Huff, Eric M.; James, David J.; Jarvis, M.; Lima, M.; Maia, Marcio A. G.; March, Marisa; Marshall, Jennifer L.; Martini, Paul; Melchior, Peter; Menanteau, Felipe; Miquel, Ramon; Mohr, Joseph J.; Morgan, R.; Myles, Justin; Ogando, Ricardo L. C.; Palmese, Antonella; Pandey, S.; Paz-Chinchón, Francisco; Plazas Malagón, Andrés A.; Rodriguez-Monroy, Martin; Roodman, Aaron; Sanchez, E.; Scarpine, Vic; Schubnell, M.; Secco, Lucas Frozza; Serrano, S.; Sevilla-Noarbe, Ignacio; Smith, Mathew; Soares-Santos, Marcelle; Suchyta, Eric; Swanson, Molly E. C.; Tarlé, Gregory; Thomas, D.; To, Chun-Hao; Troxel, Michael A.; Varga, Tamas Norbert; Weller, Jochen; Wester, W. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)ABSTRACT Quantifying tensions – inconsistencies amongst measurements of cosmological parameters by different experiments – has emerged as a crucial part of modern cosmological data analysis. Statistically significant ...
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Chan, Kwan Chuen; Ferrero, Ismael; Avila, Santiago; Ross, Ashley J.; Crocce, Martin; Gaztañaga, Enrique (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)ABSTRACT Photometric data can be analysed using the 3D correlation function ξp to extract cosmological information via e.g. measurement of the Baryon Acoustic Oscillations (BAO). Previous studies modeled ξp ...
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Costanzi, Matteo; Saro, Anneli; Bocquet, S.; Abbott, T. M. C.; Aguena, M.; Allam, S.; Amara, A.; Annis, J.; Avila, Santiago; Bacon, D.; Benson, Bradford A.; Bhargava, S.; Brooks, D.; Buckley-Geer, Elizabeth; Burke, David L.; Carnero Rosell, A.; Carrasco Kind, Matias; Carretero, J.; Choi, A.; da Costa, L. N.; Pereira, Maria Elidaiana da Silva; De Vicente, J.; Desai, S.; Diehl, H. T.; Dietrich, J. P.; Doel, P.; Eifler, T. F.; Everett, S.; Ferrero, Ismael; Ferté, Agnès; Flaugher, B.; Fosalba, P.; Frieman, J.; García-Bellido, Juan; Gaztanaga, E.; Gerdes, David W.; Giannantonio, Tommaso; Giles, P.; Grandis, S.; Gruen, D.; Gruendl, Robert A.; Gupta, N.; Gutierrez, G.; Hartley, W. G.; Hinton, Samuel R.; Hollowood, Devon L.; Honscheid, K.; James, D. J.; Jeltema, T.; Krause, E.; Kuehn, K.; Kuropatkin, N.; Lahav, Ofer; Lima, M.; MacCrann, N.; Maia, M. A. G.; Marshall, J. L.; Menanteau, F.; Miquel, R.; Mohr, Joseph J.; Morgan, R.; Myles, Justin; Ogando, R. L. C.; Palmese, Antonella; Paz-Chinchón, Francisco; Plazas, Andrés A.; Rapetti, D.; Reichardt, Christian L.; Romer, A. K.; Roodman, A.; Ruppin, F.; Salvati, L.; Samuroff, S.; Sanchez, E.; Scarpine, V.; Serrano, S.; Sevilla-Noarbe, I.; Singh, P.; Smith, M.; Soares-Santos, Marcelle; Stark, Anthony A.; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; Thomas, D.; To, Chun-Hao; Tucker, D. L.; Varga, T. N.; Wechsler, Risa H.; Zhang, Z. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)We perform a joint analysis of the counts of redMaPPer clusters selected from the Dark Energy Survey (DES) year 1 data and multiwavelength follow-up data collected within the 2500 deg2 South Pole Telescope (SPT) ...
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Gatti, Marco; Giannini, Giulia; Bernstein, Gary M.; Alarcon, A.; Myles, Justin; Amon, A.; Cawthon, R.; Troxel, M.; DeRose, J.; Everett, S.; Ross, Ashley J.; Rykoff, Eli S.; Elvin-Poole, J.; Cordero, J.; Harrison, Ian; Sánchez, Carles; Prat, Judit; Gruen, Daniel; Lin, H.; Crocce, Martin; Rozo, E.; Abbott, Timothy M. C.; Aguena, Michel; Allam, Sahar; Annis, James; Avila, Santiago; Bacon, D.; Bertin, E.; Brooks, D.; Burke, David L.; Carnero Rosell, Aurelio; Carrasco Kind, Matias; Carretero, J.; Castander, F. J.; Choi, A.; Conselice, Christopher; Costanzi, Matteo; Crocce, M.; da Costa, L. N.; Pereira, Maria Elidaiana da Silva; Dawson, K.; Desai, S.; Diehl, H. T.; Eckert, K.; Eifler, T. F.; Evrard, August E.; Ferrero, Ismael; Flaugher, B.; Fosalba, Pablo; Frieman, J.; García-Bellido, Juan; Gaztanaga, E.; Giannantonio, Tommaso; Gruendl, Robert A.; Gschwend, J.; Hinton, S. R.; Hollowood, Devon L.; Honscheid, Klaus; Hoyle, B.; Huterer, Dragan; James, D. J.; Kuehn, Kyler; Kuropatkin, Nikolay; Lahav, Ofer; Lima, M.; MacCrann, Niall; Maia, Marcio A. G.; March, M.; Marshall, J. L.; Melchior, P.; Menanteau, F.; Miquel, Ramon; Mohr, Joseph J.; Morgan, R.; Ogando, Ricardo L. C.; Palmese, Antonella; Paz-Chinchón, Francisco; Percival, Will J.; Plazas, Andrés A.; Rodriguez-Monroy, M.; Roodman, A.; Rossi, G.; Samuroff, S.; Sanchez, E.; Scarpine, V.; Secco, Lucas Frozza; Serrano, S.; Sevilla-Noarbe, Ignacio; Smith, M.; Soares-Santos, Marcelle; Suchyta, E.; Swanson, Molly E. C.; Tarle, G.; Thomas, D.; To, Chun-Hao; Varga, T. N.; Weller, Jochen; Wilkinson, R. D. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)ABSTRACT We present the calibration of the Dark Energy Survey Year 3 (DES Y3) weak lensing (WL) source galaxy redshift distributions n(z) from clustering measurements. In particular, we cross-correlate the WL ...
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Gatti, Marco; Chang, C.; Friedrich, Oliver; Jain, B.; Bacon, D.; Crocce, Hector Martin; DeRose, J.; Ferrero, Ismael; Fosalba, P.; Gaztanaga, E.; Gruen, Daniel; Harrison, Ian; Jeffrey, Niall; MacCrann, Niall; McClintock, Thomas; Secco, L.; Whiteway, L.; Abbott, T. M. C.; Allam, Sahar; Annis, J.; Avila, Santiago; Brooks, D.; Buckley-Geer, Elizabeth; Burke, D. L.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Cawthon, R.; da Costa, L. N.; De Vicente, J.; Desai, Shantanu; Diehl, H. T.; Doel, P.; Eifler, T. F.; Estrada, J.; Everett, S.; Evrard, August E.; Frieman, J.; García-Bellido, Juan; Gerdes, David W.; Gruendl, Robert A.; Gschwend, J.; Gutierrez, G.; James, D. J.; Johnson, M. D.; Krause, E.; Kuehn, Kyler; Lima, M.; Maia, Marcio A G; March, Marisa; Marshall, Jennifer L.; Melchior, Peter; Menanteau, F.; Miquel, Ramon; Palmese, Antonella; Paz-Chinchón, Francisco; Plazas, Andrés A.; Sánchez, C.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Santiago, S.; Sevilla-Noarbe, I.; Smith, Mathew; Soares-Santos, Marcelle; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; Thomas, D.; Troxel, M. A.; Zuntz, Joseph (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)ABSTRACT We present a simulated cosmology analysis using the second and third moments of the weak lensing mass (convergence) maps. The second moment, or variances, of the convergence as a function of smoothing ...
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Carnero Rosell, Aurelio; Rodriguez-Monroy, Martin; Crocce, Martin; Elvin-Poole, J.; Porredon, Anna; Ferrero, Ismael; Mena-Fernández, J.; Cawthon, R.; De Vicente, Juan; Gaztañaga, Enrique; Ross, Ashley J.; Sanchez, E.; Sevilla-Noarbe, Ignacio; Alves, O.; Andrade-Oliveira, F.; Asorey, Jacobo; Avila, Santiago; Brandao-Souza, A.; Camacho, H.; Chan, Kwan Chuen; Ferté, Agnès; Muir, Jessica; Riquelme, W.; Rosenfeld, R.; Sanchez Cid, D.; Hartley, William G.; Weaverdyck, Noah; Abbott, Timothy M. C.; Aguena, Michel; Allam, Sahar; Annis, James; Bertin, E.; Brooks, D.; Buckley-Geer, Elizabeth; Burke, D.; Calcino, J.; Carollo, D.; Carrasco Kind, Matias; Carretero, J.; Castander, F. J.; Choi, A.; Conselice, Christopher; Costanzi, Matteo; da Costa, L. N.; da Silva Pereira, Maria Elidaiana; Davis, Tamara M.; Desai, S.; Diehl, Herman T.; Doel, P.; Drlica-Wagner, Alex; Eckert, Kathleen; Everett, S.; Evrard, August E.; Flaugher, B.; Fosalba, Pablo; Frieman, J.; García-Bellido, Juan; Gerdes, D.; Giannantonio, Tommaso; Glazebrook, K.; Gruen, Daniel; Gruendl, Robert A.; Gschwend, J.; Gutierrez, G.; Hinton, Samuel R.; Hollowood, Devon L.; Honscheid, Klaus; Hoyle, B.; Huterer, Dragan; James, D.; Kim, A.; Krause, E.; Kuehn, Kyler; Lahav, Ofer; Lewis, G.; Lidman, C.; Lima, M.; Maia, Marcio A. G.; Malik, U.; Marshall, Jennifer L.; Menanteau, Felipe; Miquel, R.; Mohr, Joseph J.; Möller, A.; Morgan, R.; Ogando, Ricardo L. C.; Palmese, Antonella; Paz-Chinchón, Francisco; Percival, Will; Pieres, Adriano; Plazas Malagón, Andrés A.; Roodman, A.; Scarpine, V.; Schubnell, M.; Serrano, S.; Sharp, R.; Sheldon, E.; Smith, M.; Soares-Santos, Marcelle; Suchyta, Eric; Swanson, Molly E. C.; Tarlé, Gregory; Thomas, D.; To, Chun-Hao; Tucker, B.; Tucker, D.; Uddin, S.; Varga, Tamas Norbert (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)In this paper, we present and validate the galaxy sample used for the analysis of the baryon acoustic oscillation (BAO) signal in the Dark Energy Survey (DES) Y3 data. The definition is based on a colour and redshift-dependent ...
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Porredon, Anna; Crocce, M.; Fosalba, P.; Elvin-Poole, J.; Carnero Rosell, A.; Cawthon, R.; Eifler, T. F.; Fang, X.; Ferrero, Ismael; Krause, E.; MacCrann, Niall; Weaverdyck, Noah; Abbott, T. M. C.; Aguena, M.; Allam, S.; Amon, A.; Avila, Santiago; Bacon, D.; Bertin, Emmanuel; Bhargava, S.; Bridle, Sarah L.; Brooks, D.; Carrasco Kind, Matias; Carretero, J.; Castander, F. J.; Choi, A.; Costanzi, M.; da Costa, L. N.; Pereira, Maria Elidaiana da Silva; De Vicente, J.; Desai, S.; Diehl, H. T.; Doel, P.; Drlica-Wagner, A.; Eckert, K.; Ferté, Agnès; Flaugher, B.; Frieman, J.; García-Bellido, Juan; Gaztanaga, E.; Gerdes, David W.; Giannantonio, Tommaso; Gruen, Daniel; Gschwend, J.; Gutierrez, G.; Hartley, W. G.; Hinton, Samuel R.; Hollowood, Devon L.; Honscheid, K.; Hoyle, B.; James, D. J.; Jarvis, M.; Kuehn, K.; Kuropatkin, N.; Maia, M. A. G.; Marshall, J. L.; Menanteau, F.; Miquel, R.; Morgan, R.; Palmese, A.; Pandey, S.; Paz-Chinchón, Francisco; Plazas, Andrés A.; Rodriguez-Monroy, M.; Roodman, A.; Samuroff, S.; Sanchez, E.; Scarpine, V.; Serrano, S.; Sevilla-Noarbe, I.; Smith, M.; Soares-Santos, Marcelle; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; To, Chun-Hao; Varga, T. N.; Weller, Jochen; Wilkinson, R. D. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)We investigate potential gains in cosmological constraints from the combination of galaxy clustering and galaxy-galaxy lensing by optimizing the lens galaxy sample selection using information from Dark Energy Survey (DES) ...
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Muir, Jessica; Baxter, Eric; Miranda, V.; Doux, Cyrille; Ferté, Agnès; Leonard, C. D.; Huterer, Dragan; Jain, Bhuvnesh; Lemos, Pablo; Raveri, Marco; Nadathur, Seshadri; Campos, Andresa; Chen, Angela; Dodelson, Scott; Elvin-Poole, J.; Lee, Sujeong; Secco, Lucas Frozza; Troxel, M. A.; Weaverdyck, Noah; Zuntz, Joseph; Brout, D.; Choi, Ami; Crocce, M.; Davis, Tamara M.; Gruen, Daniel; Krause, Elisabeth; Lidman, C.; MacCrann, N.; Möller, Anais; Prat, Judit; Ross, Ashley J.; Sako, Masao; Samuroff, S.; Sánchez, Carles; Scolnic, D.; Zhang, Bonnie; Abbott, T. M. C.; Aguena, M.; Allam, S.; Annis, J.; Avila, Santiago; Bacon, David; Bertin, Emmanuel; Bhargava, S.; Bridle, Sarah L.; Brooks, David; Burke, David L.; Carnero Rosell, A.; Carrasco Kind, Matias; Carretero, Jorge; Cawthon, R.; Costanzi, M.; da Costa, L. N.; Pereira, Maria Elidaiana da Silva; Desai, S.; Diehl, H. T.; Dietrich, J. P.; Doel, P.; Estrada, J.; Everett, S.; Evrard, August E.; Ferrero, Ismael; Flaugher, B.; Frieman, J.; García-Bellido, Juan; Giannantonio, Tommaso; Gruendl, Robert A.; Gschwend, J.; Gutierrez, G.; Hinton, Samuel R.; Hollowood, Devon L.; Honscheid, K.; Hoyle, B.; James, D. J.; Jeltema, T.; Kuehn, K.; Kuropatkin, N.; Lahav, Ofer; Lima, M.; Maia, M. A. G.; Menanteau, F.; Miquel, R.; Morgan, R.; Myles, Justin; Palmese, A.; Paz-Chinchón, Francisco; Plazas, Andrés A.; Romer, A. K.; Roodman, A.; Sanchez, E.; Scarpine, V.; Serrano, Santiago; Sevilla-Noarbe, I.; Smith, M.; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; Thomas, D.; To, Chun-Hao; Tucker, D. L.; Varga, T. N.; Weller, Jochen; Wilkinson, R. D. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
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Andrade-Oliveira, Felipe; Camacho, Hugo; Faga, L.; Gomes, R.; Rosenfeld, R.; Troja, A.; Alves, O.; Doux, Cyrille; Elvin-Poole, J.; Fang, Xiao; Friedrich, Oliver; Kokron, N.; Lima, M.; Miranda, V.; Pandey, S.; Porredon, Anna; Sanchez, J.; Aguena, Michel; Allam, Sahar; Annis, James; Avila, Santiago; Bertin, Emmanuel; Brooks, D.; Burke, David L.; Carrasco Kind, Matias; Carretero, Jorge; Cawthon, Ross; Chang, Chihway L.; Choi, A.; Costanzi, Matteo; Crocce, Martin; da Costa, Luiz N.; Pereira, Maria Elidaiana da Silva; Desai, S.; Diehl, Herman T.; Doel, Peter; Drlica-Wagner, Alex; Everett, Spencer; Evrard, August E.; Ferrero, Ismael; Frieman, Josh; García-Bellido, Juan; Gaztañaga, Enrique; Gerdes, David W.; Gruen, Daniel; Gruendl, Robert A.; Hinton, Samuel R.; Hollowood, Devon L.; Jain, Bhuvnesh; James, David J.; Kuropatkin, Nikolay; Lahav, Ofer; MacCrann, Niall; Maia, Marcio A. G.; March, Marisa; Melchior, Peter; Menanteau, Felipe; Miquel, Ramon; Morgan, R.; Myles, Justin; Ogando, Ricardo L. C.; Palmese, Antonella; Paz-Chinchón, Francisco; Plazas Malagón, Andrés A.; Rodriguez-Monroy, Martin; Sanchez, E.; Scarpine, Vic; Serrano, Santiago; Sevilla-Noarbe, Ignacio; Smith, Mathew; Soares-Santos, Marcelle; Suchyta, Eric; Tarlé, Gregory; To, Chun-Hao (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)ABSTRACT We perform an analysis in harmonic space of the Dark Energy Survey Year 1 Data (DES-Y1) galaxy clustering photometric data using products obtained for the real-space analysis. We test our pipeline with ...
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Riquelme, Walter; Avila, Santiago; García-Bellido, Juan; Porredon, Anna; Ferrero, Ismael; Chan, Kwan Chuen; Rosenfeld, Rogerio; Camacho, Hugo; Adame, Adrian G.; Carnero Rosell, Aurelio; Crocce, Martin; De Vicente, Juan; Eifler, Tim; Elvin-Pool, Jack; Fang, Xiao; Krause, Elisabeth; Rodriguez Monroy, Martin; Ross, Ashley J.; Sanchez, Eusebio; Sevilla, Ignacio (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Local primordial non-Gaussianity (PNG) is a promising observable of the underlying physics of inflation, characterized by flocNL. We present the methodology to measure flocNL from the Dark Energy Survey (DES) data using ...
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Vincenzi, Maria; Sullivan, Mark; Graur, Or; Brout, Dillon; Davis, Tamara M.; Frohmaier, Christopher; Galbany, Lluís; Gutiérrez, Claudia P.; Hinton, Samuel R.; Hounsell, R.; Kelsey, Lisa; Kessler, R.; Kovacs, E.; Kuhlman, S.; Lasker, James; Lidman, Chris; Möller, Anais; Nichol, Robert C.; Sako, M.; Scolnic, Daniel; Smith, Mathew; Swann, E.; Wiseman, Philip; Asorey, Jacobo; Lewis, Geraint F.; Sharp, R.; Tucker, B. E.; Aguena, Michel; Allam, Sahar; Avila, Santiago; Bertin, Emmanuel; Brooks, D.; Burke, David L.; Carnero Rosell, Aurelio; Carrasco Kind, Matias; Carretero, Jorge; Castander, Francisco Javier; Choi, A.; Costanzi, Matteo; da Costa, Luiz N.; Pereira, Maria Elidaiana da Silva; De Vicente, Juan; Desai, S.; Diehl, Herman T.; Doel, Peter; Everett, Spencer; Ferrero, Ismael; Fosalba, Pablo; Frieman, Josh; García-Bellido, Juan; Gaztañaga, Enrique; Gerdes, David W.; Gruen, Daniel; Gruendl, Robert A.; Gutierrez, G.; Hollowood, Devon L.; Honscheid, Klaus; Hoyle, B.; James, David J.; Kuehn, Kyler; Kuropatkin, Nikolay; Maia, Marcio A. G.; Martini, Paul; Menanteau, Felipe; Miquel, Ramon; Morgan, R.; Palmese, Antonella; Paz-Chinchón, Francisco; Plazas, Andrés A.; Romer, A. K.; Sanchez, E.; Scarpine, Vic; Serrano, S.; Sevilla-Noarbe, Ignacio; Soares-Santos, Marcelle; Suchyta, Eric; Tarlé, Gregory; Thomas, D.; To, Chun-Hao; Varga, Tamas Norbert; Walker, Alistair R.; Wilkinson, Reese D. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)ABSTRACT The analysis of current and future cosmological surveys of Type Ia supernovae (SNe Ia) at high redshift depends on the accurate photometric classification of the SN events detected. Generating realistic ...
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Grayling, Matthew; Gutiérrez, Claudia P.; Sullivan, Mark; Wiseman, Philip; Vincenzi, Maria; González-Gaitán, Santiago; Tucker, B. E.; Galbany, Lluís; Kelsey, Lisa; Lidman, Chris; Swann, E.; Smith, Mathew; Frohmaier, Christopher; Carollo, Daniela; Glazebrook, K.; Lewis, Geraint F.; Möller, Anais; Hinton, Samuel R.; Uddin, S. A.; Abbott, Timothy M. C.; Aguena, Michel; Avila, Santiago; Bertin, Emmanuel; Bhargava, S.; Brooks, D.; Carnero Rosell, Aurelio; Carrasco Kind, Matias; Carretero, Jorge; Costanzi, Matteo; da Costa, Luiz N.; De Vicente, Juan; Desai, S.; Diehl, Herman T.; Doel, Peter; Everett, Spencer; Ferrero, Ismael; Fosalba, Pablo; Frieman, Josh; García-Bellido, Juan; Gaztañaga, Enrique; Gruen, Daniel; Gruendl, Robert A.; Gschwend, Julia; Gutierrez, G.; Hoyle, B.; Kuehn, Kyler; Kuropatkin, Nikolay; Lima, M.; MacCrann, Niall; Marshall, Jennifer L.; Martini, Paul; Miquel, Ramon; Morgan, R.; Palmese, Antonella; Paz-Chinchón, Francisco; Plazas, Andrés A.; Romer, A. K.; Sánchez, Carles; Sanchez, E.; Scarpine, Vic; Serrano, S.; Sevilla-Noarbe, Ignacio; Soares-Santos, Marcelle; Suchyta, Eric; Tarlé, Gregory; Thomas, Daniel; To, Chun-Hao; Varga, Tamas Norbert; Walker, Alistair R.; Wilkinson, Reese D. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)ABSTRACT We present DES14X2fna, a high-luminosity, fast-declining Type IIb supernova (SN IIb) at redshift z = 0.0453, detected by the Dark Energy Survey (DES). DES14X2fna is an unusual member of its class, with ...