G. Pignata
Andrés Bello National University
80 Papers
2.2K Citations
G. Pignata is an academic researcher from Andrés Bello National University. The author has contributed to research in topics: Supernova & Galaxy. The author has an hindex of 24, co-authored 80 publications. Previous affiliations of G. Pignata include Millennium Institute & Pontifical Catholic University of Chile.
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Papers
A kilonova as the electromagnetic counterpart to a gravitational-wave source
Stephen J. Smartt,Ting-Wan Chen,Anders Jerkstrand,Michael W. Coughlin,Erkki Kankare,Stuart A. Sim,Morgan Fraser,Cosimo Inserra,Kate Maguire,K. C. Chambers,M. E. Huber,Thomas Krühler,Giorgos Leloudas,M. R. Magee,Luke J. Shingles,K. W. Smith,David Young,John L. Tonry,Rubina Kotak,Avishay Gal-Yam,J. D. Lyman,D. Homan,C. Agliozzo,C. Agliozzo,Joseph P. Anderson,C. Angus,Chris Ashall,Cristina Barbarino,Franz E. Bauer,Franz E. Bauer,Franz E. Bauer,Marco Berton,Marco Berton,M. T. Botticella,Mattia Bulla,J. Bulger,Giacomo Cannizzaro,Giacomo Cannizzaro,Zach Cano,Régis Cartier,Aleksandar Cikota,P. Clark,A. De Cia,M. Della Valle,Larry Denneau,M. Dennefeld,Luc Dessart,Georgios Dimitriadis,Nancy Elias-Rosa,R. E. Firth,H. Flewelling,A. Flörs,A. Franckowiak,C. Frohmaier,Lluís Galbany,Santiago González-Gaitán,Jochen Greiner,Mariusz Gromadzki,A. Nicuesa Guelbenzu,Claudia P. Gutiérrez,A. Hamanowicz,A. Hamanowicz,Lorraine Hanlon,Jussi Harmanen,Kasper E. Heintz,Kasper E. Heintz,A. Heinze,M.-S. Hernandez,Simon Hodgkin,Isobel Hook,Luca Izzo,Phil A. James,Peter G. Jonker,Peter G. Jonker,Wolfgang Kerzendorf,S. Klose,Z. Kostrzewa-Rutkowska,Z. Kostrzewa-Rutkowska,Marek Kowalski,Markus Kromer,Markus Kromer,Hanindyo Kuncarayakti,Andy Lawrence,T. Lowe,Eugene A. Magnier,Ilan Manulis,Antonio Martin-Carrillo,Seppo Mattila,O. McBrien,André Müller,Jakob Nordin,D. O'Neill,F. Onori,F. Onori,J. Palmerio,Andrea Pastorello,Ferdinando Patat,G. Pignata,G. Pignata,Ph. Podsiadlowski,Maria Letizia Pumo,Maria Letizia Pumo,S. J. Prentice,Arne Rau,A. Razza,A. Razza,A. Rest,A. Rest,T. M. Reynolds,Rupak Roy,Rupak Roy,Ashley J. Ruiter,Ashley J. Ruiter,Krzysztof A. Rybicki,Lána Salmon,Patricia Schady,A. S. B. Schultz,T. Schweyer,Ivo R. Seitenzahl,Ivo R. Seitenzahl,M. Smith,Jesper Sollerman,B. Stalder,Christopher W. Stubbs,Mark Sullivan,Helene Szegedi,Francesco Taddia,Stefan Taubenberger,Giacomo Terreran,Giacomo Terreran,B. van Soelen,J. Vos,Richard J. Wainscoat,Nicholas A. Walton,Christopher Waters,H. Weiland,Mark Willman,P. Wiseman,Darryl Wright,Łukasz Wyrzykowski,O. Yaron +140 more
TL;DR: Observations and physical modelling of a rapidly fading electromagnetic transient in the galaxy NGC 4993, which is spatially coincident with GW170817, indicate that neutron-star mergers produce gravitational waves and radioactively powered kilonovae, and are a nucleosynthetic source of the r-process elements.
Observational Constraints on the Nature of the Dark Energy: First Cosmological Results from the ESSENCE Supernova Survey
W. M. Wood-Vasey,G. Miknaitis,Christopher W. Stubbs,Saurabh Jha,Adam G. Riess,P. M. Garnavich,Robert P. Kirshner,C. Aguilera,A. C. Becker,J. W. Blackman,Stephane Blondin,P. Challis,A. Clocchiatti,Alex Conley,R. A. Covarrubias,Tamara M. Davis,Alexei V. Filippenko,Ryan J. Foley,Arti Garg,M. Hicken,K. Krisciunas,Bruno Leibundgut,Wenxiong Li,Thomas Matheson,A. Miceli,Gautham Narayan,G. Pignata,J. L. Prieto,Armin Rest,Maria Elena Salvo,Brian P. Schmidt,Robert Connon Smith,Jesper Sollerman,Jason Spyromilio,John L. Tonry,N. B. Suntzeff,Alfredo Zenteno +36 more
TL;DR: In this article, a set of constraints on the dark energy equation-of-state parameter w =P/(rho c^2) were derived for 60 Type Ia supernovae from the ESSENCE supernova survey.
Low luminosity Type II supernovae - II. Pointing towards moderate mass precursors
S. Spiro,A. Pastorello,Maria Letizia Pumo,Luca Zampieri,Massimo Turatto,S. J. Smartt,Stefano Benetti,Enrico Cappellaro,Stefano Valenti,Stefano Valenti,I. Agnoletto,G. Altavilla,Takao Aoki,Enzo Brocato,Enrico Maria Corsini,A. Di Cianno,Nancy Elias-Rosa,Mario Hamuy,Keigo Enya,M. Fiaschi,Gastón Folatelli,Silvano Desidera,Avet Harutyunyan,D. A. Howell,D. A. Howell,Adela Kawka,Y. Kobayashi,Bruno Leibundgut,Takeo Minezaki,H. Navasardyan,Ken'ichi Nomoto,Ken'ichi Nomoto,Seppo Mattila,Adriano Pietrinferni,G. Pignata,Gabriella Raimondo,Maria Elena Salvo,Brian P. Schmidt,Jesper Sollerman,Jason Spyromilio,S. Taubenberger,Gaetano Valentini,Stephane Vennes,Yuzuru Yoshii +43 more
TL;DR: In this article, the authors presented new data for five underluminous Type II-plateau supernovae (SNe IIP), namely SN 1999gn, SN 2002gd, SN 2003Z, SN 2004eg and SN 2006ov.
ASASSN-15lh: A Highly Super-Luminous Supernova
Subo Dong,Benjamin J. Shappee,J. L. Prieto,Saurabh Jha,Krzysztof Z. Stanek,Thomas W.-S. Holoien,Christopher S. Kochanek,Todd A. Thompson,Nidia Morrell,Ian B. Thompson,U. Basu,John F. Beacom,D. Bersier,J. Brimacombe,J. S. Brown,F. Bufano,Ping Chen,E. Conseil,A. B. Danilet,E. E. Falco,Dirk Grupe,S. Kiyota,G. Masi,B. Nicholls,F. Olivares,G. Pignata,G. Pojmanski,G. V. Simonian,D. M. Szczygiel,P. R. Wozniak +29 more
TL;DR: ASASSN-15lh (SN 2015L) as discussed by the authors is the most luminous supernova yet found, reaching an absolute magnitude of M = 0.2326 and bolometric luminosity L_bol = (2.2+/-0.2)x 10^45 ergs s^-1.
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High-Velocity Features: a ubiquitous property of Type Ia SNe
Paolo A. Mazzali,S. Benetti,G. Altavilla,Guillermo A. Blanc,Enrico Cappellaro,Nancy Elias-Rosa,G. Garavini,A. Goobar,Avet Harutyunyan,Rubina Kotak,Bruno Leibundgut,Peter Lundqvist,Seppo Mattila,Javier Méndez,S. Nobili,R. Pain,A. Pastorello,Ferdinando Patat,G. Pignata,Ph. Podsiadlowski,P. Ruiz-Lapuente,Maria Elena Salvo,Brian P. Schmidt,Jesper Sollerman,Vallery Stanishev,M. Stehle,Christopher A. Tout,Massimo Turatto,Wolfgang Hillebrandt +28 more
TL;DR: In this article, high-velocity features such as those seen in the near-maximum spectra of some Type Ia supernovae (eg SN 2000cx) have been searched for in the available SNIa spectra observed earlier than one week before B maximum.