Browsing Institutt for teoretisk astrofysikk by Author "Galbany, Lluís"

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  • Rates and delay times of Type Ia supernovae in the Dark Energy Survey 
    Wiseman, Philip; Sullivan, Mark; Smith, M.; Frohmaier, Christopher; Vincenzi, Maria; Graur, Or; Popovic, B.; Armstrong, P.; Brout, D.; Davis, Tamara M.; Galbany, Lluís; Hinton, Samuel R.; Kelsey, Lisa; Kessler, R.; Lidman, Chris; Möller, A.; Nichol, Robert C.; Rose, B.; Scolnic, Daniel; Toy, Michael D.; Zontou, Z.; Asorey, Jacobo; Carollo, Daniela; Glazebrook, K.; Lewis, Geraint F.; Tucker, B. E.; Abbott, Timothy M. C.; Aguena, Michel; Allam, Sahar; Andrade-Oliveira, F.; Annis, James; Bacon, D.; Bertin, Emmanuel; Brooks, D.; Buckley-Geer, Elizabeth; Burke, David L.; Carnero Rosell, Aurelio; Carrasco Kind, Matias; Carretero, Jorge; Costanzi, Matteo; da Costa, Luiz N.; Pereira, Maria Elidaiana da Silva; Desai, S.; Diehl, Herman T.; Doel, Peter; Everett, S.; Ferrero, Ismael; Flaugher, Brenna; Fosalba, Pablo; Frieman, Josh; García-Bellido, Juan; Gaztañaga, Enrique; Giannantonio, Tommaso; Gruen, Daniel; Gruendl, Robert A.; Gschwend, Julia; Gutierrez, G.; Hollowood, Devon L.; Honscheid, Klaus; Hoyle, B.; James, David J.; Krause, Elisabeth; Kuehn, Kyler; Kuropatkin, Nikolay; Maia, Marcio A. G.; Marshall, Jennifer L.; Martini, Paul; Menanteau, Felipe; Miquel, Ramon; Morgan, R.; Ogando, Ricardo L. C.; Palmese, Antonella; Paz-Chinchón, Francisco; Petravick, D.; Pieres, Adriano; Plazas Malagón, Andrés A.; Romer, A. K.; Sanchez, E.; Scarpine, Vic; Schubnell, M.; Serrano, Santiago; Sevilla-Noarbe, Ignacio; Soares-Santos, Marcelle; Suchyta, Eric; Swanson, Molly E. C.; Tarlé, Gregory; To, Chun-Hao; Varga, Tamas Norbert; Walker, Alistair R. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    We use a sample of 809 photometrically classified Type Ia supernovae (SNe Ia) discovered by the Dark Energy Survey (DES) along with 40 415 field galaxies to calculate the rate of SNe Ia per galaxy in the redshift range 0.2 ...
  • The Dark Energy Survey Supernova Program results: type Ia supernova brightness correlates with host galaxy dust 
    Meldorf, Cole; Palmese, Antonella; Brout, Dillon; Chen, R.; Scolnic, Daniel; Kelsey, Lisa; Galbany, Lluís; Hartley, William G.; Davis, Tamara M.; Drlica-Wagner, Alex; Vincenzi, M.; Annis, James; Dixon, M.; Graur, Or; Lidman, C.; Möller, A.; Nugent, P.; Rose, B.; Smith, Mathew; Allam, Sahar; Tucker, D. L.; Asorey, Jacobo; Calcino, J.; Carollo, D.; Glazebrook, K.; Lewis, Geraint F.; Taylor, G.; Tucker, B. E.; Kim, Alex G.; Diehl, Herman T.; Aguena, Michel; Andrade-Oliveira, Felipe; Bacon, David; Bertin, E.; Bocquet, S.; Brooks, D.; Burke, David L.; Carretero, Jorge; Carrasco Kind, Matias; Castander, Francisco Javier; Costanzi, M.; da Costa, Luiz N.; Desai, Shantanu; Doel, Peter; Everett, S.; Ferrero, Ismael; Friedel, D.; Frieman, Josh; García-Bellido, Juan; Gatti, M.; Gruen, D.; Gschwend, Julia; Gutierrez, G.; Hinton, Samuel R.; Hollowood, Devon L.; Honscheid, Klaus; James, D. J.; Kuehn, Kyler; March, M.; Marshall, J. L.; Menanteau, Felipe; Miquel, R.; Morgan, R.; Paz-Chinchón, Francisco; Pereira, Maria Elidaiana da Silva; Plazas Malagón, Andrés A.; Sanchez, E.; Scarpine, Vic; Sevilla-Noarbe, Ignacio; Suchyta, Eric; Tarlé, Gregory; Varga, Tamas Norbert (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Cosmological analyses with type Ia supernovae (SNe Ia) often assume a single empirical relation between colour and luminosity (β) and do not account for varying host-galaxy dust properties. However, from studies of dust ...
  • The Dark Energy Survey supernova program: cosmological biases from supernova photometric classification 
    Vincenzi, Maria; Sullivan, M.; Möller, A.; Armstrong, P.; Bassett, B. A.; Brout, D.; Carollo, D.; Carr, A.; Davis, Tamara M.; Frohmaier, C.; Galbany, Lluís; Glazebrook, K.; Graur, Or; Kelsey, L.; Kessler, R.; Kovacs, E.; Lewis, Geraint F.; Lidman, C.; Malik, U.; Nichol, Robert C.; Popovic, B.; Sako, M.; Scolnic, D.; Smith, Mathew; Taylor, G.; Tucker, B. E.; Wiseman, P.; Aguena, Michel; Allam, Sahar; Annis, J.; Asorey, Jacobo; Bacon, D.; Bertin, E.; Brooks, D.; Burke, D. L.; Carnero Rosell, Aurelio; Carretero, J.; Castander, F. J.; Costanzi, M.; da Costa, Luiz N.; Pereira, Maria Elidaiana da Silva; De Vicente, J.; Desai, S.; Diehl, H. T.; Doel, P.; Everett, S.; Ferrero, Ismael; Flaugher, B.; Fosalba, Pablo; Frieman, J.; García-Bellido, J.; Gerdes, David W.; Gruen, D.; Gutierrez, G.; Hinton, Samuel R.; Hollowood, Devon L.; Honscheid, K.; James, D. J.; Kuehn, K.; Kuropatkin, N.; Lahav, Ofer; Li, T.S.; Lima, M.; Maia, Marcio A. G.; Marshall, Jennifer L.; Miquel, R.; Morgan, R.; Ogando, Ricardo L. C.; Palmese, A.; Paz-Chinchón, Francisco; Pieres, A.; Plazas Malagón, Andrés A.; Reil, K.; Roodman, A.; Sanchez, E.; Schubnell, M.; Serrano, S.; Sevilla-Noarbe, Ignacio; Suchyta, Eric; Tarle, G.; To, C.; Varga, Tamas Norbert; Weller, Jochen; Wilkinson, R. D. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    ABSTRACT Cosmological analyses of samples of photometrically identified type Ia supernovae (SNe Ia) depend on understanding the effects of ‘contamination’ from core-collapse and peculiar SN Ia events. We employ ...
  • The Dark Energy Survey supernova programme: modelling selection efficiency and observed core-collapse supernova contamination 
    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 ...
  • The effect of environment on Type Ia supernovae in the Dark Energy Survey three-year cosmological sample 
    Kelsey, Lisa; Sullivan, Mark; Smith, Mathew; Wiseman, Philip; Brout, D.; Davis, Tamara M.; Frohmaier, Christopher; Galbany, Lluís; Grayling, Matthew; Gutiérrez, Claudia P.; Hinton, Samuel R.; Kessler, R; Lidman, C.; Möller, A.; Sako, M.; Scolnic, D.; Uddin, S. A.; Vincenzi, Maria; Abbott, T. M. C.; Aguena, M.; Allam, S.; Annis, J.; Avila, S.; Bacon, D.; Bertin, E.; Brooks, D.; Burke, David L.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Castander, F. J.; Costanzi, M.; da Costa, L. N.; Desai, S.; Diehl, H. T.; Doel, P.; Everett, S.; Ferrero, Ismael; Ferté, A.; Flaugher, B.; Fosalba, P.; García-Bellido, Juan; Gerdes, David W.; Gruen, D.; Gruendl, Robert A.; Gschwend, J.; Gutierrez, G.; Hollowood, Devon L.; Honscheid, K.; James, D. J.; Kim, A. G.; Kuehn, K.; Kuropatkin, N.; Lahav, Ofer; Lima, M.; Marshall, J. L.; Martini, P.; Menanteau, F.; Miquel, R.; Morgan, R.; Ogando, R. L. C.; Palmese, A.; Paz-Chinchón, Francisco; Plazas, Andrés A.; Romer, A. K.; Sánchez, C.; Sanchez, E.; Serrano, S.; Sevilla-Noarbe, I.; Suchyta, E.; Tarle, G.; Thomas, D.; To, C.; Varga, T. N.; Walker, A. R.; Wilkinson, R. D. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    ABSTRACT Analyses of Type Ia supernovae (SNe Ia) have found puzzling correlations between their standardized luminosities and host galaxy properties: SNe Ia in high-mass, passive hosts appear brighter than those ...
  • Understanding the extreme luminosity of DES14X2fna 
    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 ...