Now showing items 1-20 of 62

    • A Type II Supernova Hubble Diagram from the CSP-I, SDSS-II, and SNLS Surveys 

      Jaeger, T. De; González Gaitán, S.; Hamuy Wackenhut, Mario; Galbany, Lluis; Anderson, J. P.; Phillips, M. M.; Stritzinger, M. D.; Carlberg, R. G.; Sullivan, M.; Gutiérrez, C. P.; Hook, I. M.; Howell, D. Andrew; Hsiao, E. Y.; Kuncarayakti, H.; Ruhlmann-Kleider, V.; Folatelli, Gastón; Pritchet, C.; Basa, S. (Institute of Physics Publishing, 2017)
      The coming era of large photometric wide-field surveys will increase the detection rate of supernovae by orders of magnitude. Such numbers will restrict spectroscopic follow-up in the vast majority of cases, and hence new ...
    • Aperture effects on the oxygen abundance determinations from califa data 

      Iglesias Páramo, J.; Vilchez, J. M.; Rosales Ortega, F. F.; Sánchez, S. F.; Duarte Puertas, S.; Petropoulou, V.; Gil de Paz, A.; Galbany, Lluis; Molla, M.; Catalán Torrecilla, C.; Castillo Morales, A.; Mast, D.; Husemann, B.; García Benito, R.; Mendoza, M. A.; Kehrig, C.; Pérez Montero, E.; Papaderos, P.; Gomes, J.; Walcher, C. J.; González Delgado, R. M.; Marino, R. A.; López Sánchez, A.; Ziegler, B.; Flores H., Juan Carlos; Alves, J. (IOP Publishing, 2016)
      This paper aims to provide aperture corrections for emission lines in a sample of spiral galaxies from the Calar Alto Legacy Integral Field Area Survey (CALIFA) database. In particular, we explore the behavior of the log([O ...
    • Asteroids in the high cadence transient survey 

      Peña, J.; Fuentes González, César; Forster, Francisco; Maureira, Juan Carlos; San Martín, J.; Littin, J.; Huijse Heise, Pablo Andrés; Cabrera Vives, Guillermo; Estévez Valencia, Pablo; Galbany, Lluis; González Gaitán, Santiago; Martínez, J.; De Jaeger, Thomas; Hamuy Wackenhut, Mario (IOP Publishing Ltd, 2018)
      We report on the serendipitous observations of solar system objects imaged during the High cadence Transient Survey 2014 observation campaign. Data from this high-cadence wide-field survey was originally analyzed for finding ...
    • The CALIFA survey across the Hubble sequence Spatially resolved stellar population properties in galaxies? 

      González Delgado, R. M.; García Benito, R.; Pérez, E.; Cid Fernandes, R.; Amorim, A. de; Cortijo Ferrero, C.; Lacerda, E.; López Fernández, R.; Vale Asari, N.; Sánchez, F.; Mollá, M.; Ruiz Lara, T.; Sánchez Blázquez, P.; Walcher, C.; Alves, J.; Aguerri, J.; Bekeraité, S.; Bland Hawthorn, J.; Galbany, Lluis; Gallazzi, A.; Husemann, B.; Iglesias Páramo, J.; Kalinova, V.; López Sánchez, A.; Marino, R.; Márquez, I.; Masegosa, J.; Mast, D.; Méndez Abreu, J.; Mendoza, A.; Olmo, A. del; Pérez, I.; Quirrenbach, A.; Zibetti, Stefano (EDP Sciences, 2015)
      Various di erent physical processes contribute to the star formation and stellar mass assembly histories of galaxies. One important approach to understanding the significance of these di erent processes on galaxy evolution ...
    • CALIFA, the Calar Alto Legacy Integral Field Area survey III. Second public data release 

      García Benito, R.; Zibetti, S.; Sánchez, S. F.; Husemann, B.; Amorim, A. L. de; Castillo Morales, A.; Cid Fernandes, R.; Ellis, S. C.; Falcón Barroso, J.; Galbany, Lluis; Gil de Paz, A.; González Delgado, R. M.; Lacerda, E.A.D.; López Fernandez, R.; Lorenzo Cáceres, A. de; Lyubenova, M.; Marino, R. A.; Mast, D.; Mendoza, M. A.; Pérez, E.; Vale Asari, N.; Aguerri, J.; Ascasibar, Y.; Bekeraitè, S.; Bland Hawthorn, J.; Barrera Ballesteros, J. K.; Bomans, D. J.; Cano Díaz, M.; Catalán Torrecilla, C.; Cortijo, C.; Delgado Inglada, G.; Demleitner, M.; Dettmar, R. J.; Díaz, A. I.; Florido, E.; Gallazzi, A.; García Lorenzo, B.; Gomes, J. M.; Holmes, L.; Iglesias Páramo, J.; Jahnke, K.; Kalinova, V.; Kehrig, C.; Kennicutt, R. C.; López Sánchez, A. R.; Márquez, I.; Masegosa, J.; Meidt, S. E.; Mendez Abreu, J.; Mollá, M.; Monreal Ibero, A.; Morisset, C.; Olmo, A. del; Papaderos, P.; Pérez, I.; Quirrenbach, A.; Rosales Ortega, F. F.; Roth, M. M.; Ruiz Lara, T.; Sánchez Blázquez, P.; Sánchez Menguiano, L.; Singh, R.; Spekkens, K.; Stanishev, V.; Torres Papaqui, J.P.; Ven, G. van de; Vilchez, J.M.; Walcher, C. J.; Wild, V.; Wisotzki, L.; Ziegler, B.; Alves, J.; Barrado, D.; Quintana, J.M.; Aceituno, J. (ESO, 2015)
      This paper describes the Second Public Data Release (DR2) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. The data for 200 objects are made public, including the 100 galaxies of the First Public Data Release ...
    • Census of HII regions in NGC 6754 derived with MUSE: Constraints on the metal mixing scale 

      Sánchez, S.; Galbany, Lluis; Pérez, E.; Sánchez Blázquez, P.; Falcón Barroso, J.; Rosales Ortega, F.; Sánchez Menguiano, L.; Marino, R.; Kuncarayakti, Hanindyo; Anderson, J.; Kruehler, T.; Cano Díaz, M.; Barrera Ballesteros, J.; González González, J. (EDP Sciences, 2015)
      We present a study of the HII regions in the galaxy NGC 6754 from a two pointing mosaic comprising 197 637 individual spectra, using integral field spectroscopy recently acquired with the MUSE instrument during its Science ...
    • Central star formation and metallicity in CALIFA interacting galaxies 

      Barrera Ballesteros, J. K.; Sánchez, S. F.; García Lorenzo, B.; Falcón Barroso, J.; Mast, D.; García Benito, R.; Husemann, B.; Ven, G. van de; Iglesias Páramo, J.; Rosales Ortega, F. F.; Pérez Torres, M. A.; Márquez, I.; Kehrig, C.; Marino, R. A.; Vilchez, J. M.; Galbany, Lluis; López Sánchez, A. R.; Walcher, C. J. (EDP Sciences, 2015)
      We use optical integral-field spectroscopic (IFS) data from 103 nearby galaxies at different stages of the merging event, from close pairs to merger remnants provided by the CALIFA survey, to study the impact of the ...
    • Characterizing the environments of supernovae with MUSE 

      Galbany, Lluis; Anderson, J. P.; Rosales Ortega, F. F.; Kuncarayakti, Hanindyo; Krühler, T.; Sánchez, S. F.; Falcón Barroso, J.; Pérez, E.; Maureira, J. C.; Hamuy Wackenhut, Mario; González Gaitán, Santiago; Förster Burón, Francisco; Moral, V. (Oxford University Press, 2016)
      We present a statistical analysis of the environments of 11 supernovae (SNe) which occurred in six nearby galaxies (z less than or similar to 0.016). All galaxies were observed with MUSE, the high spatial resolution ...
    • Constraints on core-collapse supernova progenitors from explosion site integral field spectroscopy 

      Kuncarayakti, H.; Anderson, J. P.; Galbany, Lluis; Maeda, K.; Hamuy Wackenhut, Mario; Aldering, G.; Arimoto, N.; Doi, M.; Morokuma, T.; Usuda, T. (EDP Sciences, 2018-05-28)
      Context. Observationally, supernovae (SNe) are divided into subclasses according to their distinct characteristics. This diversity naturally reflects the diversity in the progenitor stars. It is not entirely clear, however, ...
    • Defining photometric peculiar type Ia supernovae 

      González Gaitán, Santiago; Hsiao, Eric; Pignata Libralato, Giuliano; Förster, F; Gutiérrez, C. P.; Bufano, Filomena; Galbany, Lluis; Folatelli, Gastón; Phillips, M. M.; Hamuy Wackenhut, Mario; Anderson, J. P.; De Jaeger, Thomas (The American Astronomical Society., 2014)
      We present a new photometric identification technique for SN 1991bg-like type Ia supernovae (SNe Ia), i.e., objects with light curve characteristics such as later primary maxima and the absence of a secondary peak in ...
    • Discovery of distant RR Lyrae Stars in the Milky Way using DECam 

      Medina, Gustavo E.; Muñoz Vidal, Ricardo Rodrigo; Katherina Vivas, A.; Carlin, Jeffrey L.; Forster, Francisco; Martínez, Jorge; Galbany, Lluis; González Gaitán, Santiago; Hamuy Wackenhut, Mario; De Jaeger, Thomas; Maureira, Juan Carlos; San Martín Aristegui, Jaime (IOP Publishing Ltd, 2018)
      We report the discovery of distant RR Lyrae stars, including the most distant known in the Milky Way, using data taken in the g-band with the Dark Energy Camera as part of the High cadence Transient Survey (HiTS; 2014 ...
    • Early-time light curves of Type Ib/c supernovae from the SDSS-II Supernova Survey 

      Taddia, F.; Sollerman, J.; Leloudas, G.; Stritzinger, M. D.; Valenti, S.; Galbany, Lluis; Kessler, R.; Schneider, D. P.; Wheeler, J. C. (ESO, 2015)
      Context. Type Ib/c supernovae (SNe Ib/c) have been investigated in several single-object studies; however, there is still a paucity of works concerning larger, homogeneous samples of these hydrogen-poor transients, in ...
    • Erratum: On the diversity of superluminous supernovae: ejected mass as the dominant factor 

      Nicholl, M.; Smartt, S. J.; Jerkstrand, A.; Inserra, C.; Sim, S. A.; Chen, T. W.; Benetti, S.; Fraser, M.; Gal Yam, Avishay; Kankare, E.; Maguire, K.; Smith, K.; Sullivan, M.; Valenti, S.; Young, D. R.; Baltay, C.; Bauer, F. E.; Baumont, S.; Bersier, D.; Botticella, M.-T.; Childress, M.; Dennefeld, M.; Valle, M. Della; Elías-Rosa, N.; Feindt, U.; Galbany, Lluis; Hadjiyska, E.; Le Guillou, L.; Leloudas, G.; Mazzali, P.; McKinnon, R.; Polshaw, J.; Rabinowitz, D.; Rostami, S.; Scalzo, R.; Schmidt, B. P.; Schulze, Steve; Sollerman, J.; Taddia, F.; Yuan, F. (Royal Astronomical Society, 2016)
      This is an erratum to the paper ‘On the diversity of superluminous supernovae: ejected mass as the dominant factor’, published in MNRAS, 2015, 452.
    • Evolving into a remnant: optical observations of SN 1978K at three decades 

      Kuncarayakti, Hanindyo; Maeda, Keiichi; Anderson, J. P.; Hamuy Wackenhut, Mario; Nomoto, K.; Galbany, Lluis; Doi, M. (Oxford Univ Press, 2016)
      We present new optical observations of the supernova SN 1978K, obtained in 2007 and 2014 with the Very Large Telescope. We discover that the supernova has not faded significantly, even more than three decades after its ...
    • First survey of Wolf-Rayet star populations over the full extension of nearby galaxies observed with CALIFA 

      Miralles Caballero, D.; Díaz, A.; López Sánchez, Á.; Rosales Ortega, F.; Monreal Ibero, A.; Pérez Montero, E.; Kehrig, C.; García Benito, R.; Sánchez, S.; Walcher, C.; Galbany, Lluis; Iglesias Páramo, J.; Vílchez, J.; González Delgado, R. M.; van de Ven, G.; Barrera Ballesteros, J.; Lyubenova, M.; Meidt, S.; Falcon Barroso, J.; Mast, D.; Mendoza, M. (EDP Sciences, 2016-08)
      The search of extragalactic regions with conspicuous presence of Wolf-Rayet (WR) stars outside the Local Group is challenging task owing to the difficulty in detecting their faint spectral features. In this exploratory ...
    • Hot gas around SN 1998bw: inferring the progenitor from its environment 

      Kruehler, T.; Kuncarayakti, H.; Schady, P.; Anderson, J. P.; Galbany, Lluis; Gensior, J. (EDP Sciences, 2017)
      Spatially resolved spectroscopy of the environments of explosive transients carries detailed information about the physical properties of the stellar population that gave rise to the explosion, and thus the progenitor ...
    • A hubble diagram from TYPE II supernovae based solely on photometry: the photometric color method 

      De Jaeger, Thomas; González Gaitán, Sebastián; Anderson, J. P.; Galbany, Lluis; Hamuy Wackenhut, Mario; Phillips, M. M.; Stritzinger, M.; Gutiérrez, C.; Bolt, L.; Burns, C.; Campillay, A.; Castellón, S.; Contreras, C.; Folatelli, Gastón; Freedman, W. L.; Hsiao, Eric; Krisciunas, K.; Krzeminski, W.; Kuncarayakti, Hanindyo; Morrell, N.; Olivares, F.; Persson, S.; Suntzeff, Nicholas B. (The American Astronomical Society, 2015-12-20)
      We present a Hubble diagram of SNe II using corrected magnitudes derived only from photometry, with no input of spectral information. We use a data set from the Carnegie Supernovae Project I for which optical and ...
    • Imprints of galaxy evolution on HII regions Memory of the past uncovered by the CALIFA survey 

      Sánchez, S. F.; Pérez, E.; Rosales Ortega, F.; Miralles Caballero, D.; López-Sánchez, A. R.; Iglesias Páramo, J.; Marino, R. A.; Sánchez Menguiano, L.; García Benito, R.; Mast, D.; Mendoza, M. A.; Papaderos, P.; Ellis, S.; Galbany, Lluis; Kehrig, C.; Monreal Ibero, A.; González Delgado, R. M.; Mollá, M.; Ziegler, B.; Lorenzo Cáceres, A. de; Mendez Abreu, J.; Bland Hawthorn, J.; Bekeraité, S.; Roth, M. M.; Pasquali, A.; Díaz, A.; Bomans, D.; Ven, G. van de; Wisotzki, L. (EDP Sciences, 2015)
      Context. Hii regions in galaxies are the sites of star formation, so they are special places for understanding the build-up of stellar mass in the universe. The line ratios of this ionized gas are frequently used to ...
    • Investigating the properties of stripped-envelope supernovae; what are the implications for their progenitors? 

      Prentice, S. J.; Ashall, C.; James, P. A.; Short, L.; Mazzali, P. A.; Bersier, D.; Crowther, P. A.; Barbarino, C.; Chen, T. W.; Copperwheat, C. M.; Darnley, M. J.; Denneau, L.; Elias-Rosa, N.; Fraser, M.; Galbany, Lluis; Gal-Yam, A.; Harmanen, J.; Howell, D. A.; Hosseinzadeh, (Oxford University Press, 2019)
      We present observations and analysis of 18 stripped-envelope supernovae observed during 2013–2018. This sample consists of five H/He-rich SNe, six H-poor/He-rich SNe, three narrow lined SNe Ic, and four broad lined SNe Ic. ...
    • LSQ13fn: A type II-Plateau supernova with a possibly low metallicity progenitor that breaks the standardised candle relation 

      Polshaw, J.; Kotak, R.; Dessart, L.; Fraser, M.; Gal Yam, Avishay; Inserra, C.; Sim, S. A.; Smartt, S. J.; Sollerman, J.; Baltay, C.; Rabinowitz, D.; Benetti, S.; Botticella, M. T.; Campbell, H.; Chen, T. W.; Galbany, Lluis; McKinnon, R.; Nicholl, M.; Smith, K. W.; Sullivan, M.; Takáts, K.; Valenti, S.; Young, D. R. (ESO, 2016)
      We present optical imaging and spectroscopy of supernova (SN) LSQ13fn, a type II supernova with several hitherto-unseen properties. Although it initially showed strong symmetric spectral emission features attributable to ...