Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Clocchiatti, Alejandro"'
An analysis of the Cosmological Constant $\Omega_\Lambda$ fitted to subsamples of the Pantheon+ Type Ia SN sample spanning 2$\pi$ sterradians for a grid of 432 pole positions covering the whole sky reveals two large scale asymmetries. One of them is
Externí odkaz:
http://arxiv.org/abs/2406.00273
Autor:
Silva-Farfán, Javier, Förster, Francisco, Moriya, Takashi J., Hernández-García, L., Arancibia, A. M. Muñoz, Sánchez-Sáez, P., Anderson, Joseph P., Tonry, John L., Clocchiatti, Alejandro
We report an analysis of a sample of 186 spectroscopically confirmed Type II supernova (SN) light curves (LCs) obtained from a combination of Zwicky Transient Facility (ZTF) and Asteroid Terrestrial-impact Last Alert System (ATLAS) observations. We i
Externí odkaz:
http://arxiv.org/abs/2404.12620
Autor:
Siebert, Matthew R., Kwok, Lindsey A., Johansson, Joel, Jha, Saurabh W., Blondin, Stéphane, Dessart, Luc, Foley, Ryan J., Hillier, D. John, Larison, Conor, Pakmor, Rüdiger, Temim, Tea, Andrews, Jennifer E., Auchettl, Katie, Badenes, Carles, Barna, Barnabas, Bostroem, K. Azalee, Newman, Max J. Brenner, Brink, Thomas G., Bustamante-Rosell, María José, Camacho-Neves, Yssavo, Clocchiatti, Alejandro, Coulter, David A., Davis, Kyle W., Deckers, Maxime, Dimitriadis, Georgios, Dong, Yize, Farah, Joseph, Filippenko, Alexei V., Flörs, Andreas, Fox, Ori D., Garnavich, Peter, Gonzalez, Estefania Padilla, Graur, Or, Hambsch, Franz-Josef, Hosseinzadeh, Griffin, Howell, D. Andrew, Hughes, John P., Kerzendorf, Wolfgang E., Saux, Xavier K. Le, Maeda, Keiichi, Maguire, Kate, McCully, Curtis, Mihalenko, Cassidy, Newsome, Megan, O'Brien, John T., Pearson, Jeniveve, Pellegrino, Craig, Pierel, Justin D. R., Polin, Abigail, Rest, Armin, Rojas-Bravo, César, Sand, David J., Schwab, Michaela, Shahbandeh, Melissa, Shrestha, Manisha, Smith, Nathan, Strolger, Louis-Gregory, Szalai, Tamás, Taggart, Kirsty, Terreran, Giacomo, Terwel, Jacco H., Tinyanont, Samaporn, Valenti, Stefano, Vinkó, József, Wheeler, J. Craig, Yang, Yi, Zheng, Weikang, Ashall, Chris, Derkacy, James M., Galbany, Lluís, Hoeflich, Peter, Hsiao, Eric, De Jaeger, Thomas, Lu, Jing, Maund, Justyn, Medler, Kyle, Morrell, Nidia, Shappee, Benjamin J., Stritzinger, Maximilian, Suntzeff, Nicholas, Tucker, Michael, Wang, Lifan
Nebular-phase observations of peculiar Type Ia supernovae (SNe Ia) provide important constraints on progenitor scenarios and explosion dynamics for both these rare SNe and the more common, cosmologically useful SNe Ia. We present observations from an
Externí odkaz:
http://arxiv.org/abs/2308.12449
Autor:
Kwok, Lindsey A., Siebert, Matthew R., Johansson, Joel, Jha, Saurabh W., Blondin, Stephane, Dessart, Luc, Foley, Ryan J., Hillier, D. John, Larison, Conor, Pakmor, Ruediger, Temim, Tea, Andrews, Jennifer E., Auchettl, Katie, Badenes, Carles, Barna, Barnabas, Bostroem, K. Azalee, Newman, Max J. Brenner, Brink, Thomas G., Bustamante-Rosell, Maria Jose, Camacho-Neves, Yssavo, Clocchiatti, Alejandro, Coulter, David A., Davis, Kyle W., Deckers, Maxime, Dimitriadis, Georgios, Dong, Yize, Farah, Joseph, Filippenko, Alexei V., Flors, Andreas, Fox, Ori D., Garnavich, Peter, Gonzalez, Estefania Padilla, Graur, Or, Hambsch, Franz-Josef, Hosseinzadeh, Griffin, Howell, D. Andrew, Hughes, John P., Kerzendorf, Wolfgang E., Saux, Xavier K. Le, Maeda, Keiichi, Maguire, Kate, McCully, Curtis, Mihalenko, Cassidy, Newsome, Megan, O'Brien, John T., Pearson, Jeniveve, Pellegrino, Craig, Pierel, Justin D. R., Polin, Abigail, Rest, Armin, Rojas-Bravo, Cesar, Sand, David J., Schwab, Michaela, Shahbandeh, Melissa, Shrestha, Manisha, Smith, Nathan, Strolger, Louis-Gregory, Szalai, Tamas, Taggart, Kirsty, Terreran, Giacomo, Terwel, Jacco H., Tinyanont, Samaporn, Valenti, Stefano, Vinko, Jozsef, Wheeler, J. Craig, Yang, Yi, Zheng, WeiKang, Ashall, Chris, DerKacy, James M., Galbany, Lluis, Hoeflich, Peter, de Jaeger, Thomas, Lu, Jing, Maund, Justyn, Medler, Kyle, Morrell, Nidia, Shappee, Benjamin J., Stritzinger, Maximilian, Suntzeff, Nicholas, Tucker, Michael, Wang, Lifan
Publikováno v:
The Astrophysical Journal, Volume 966, Issue 1, id.135, 18 pp., May 2024
We present an analysis of ground-based and JWST observations of SN~2022pul, a peculiar "03fg-like" (or "super-Chandrasekhar") Type Ia supernova (SN Ia), in the nebular phase at 338d post explosion. Our combined spectrum continuously covers 0.4--14 $\
Externí odkaz:
http://arxiv.org/abs/2308.12450
Autor:
Zenati, Yossef, Wang, Qinan, Bobrick, Alexey, DeMarchi, Lindsay, Glanz, Hila, Rozner, Mor, Rest, Armin, Metzger, Brian D., Margutti, Raffaella, Gomez, Sebastian, Smith, Nathan, Toonen, Silvia, Bright, Joe S., Norman, Colin, Foley, Ryan J., Gagliano, Alexander, Krolik, Julian H., Smartt, Stephen J., Villar, Ashley V., Narayan, Gautham, Fox, Ori, Auchettl, Katie, Brethauer, Daniel, Clocchiatti, Alejandro, Coelln, Sophie V., Coppejans, Deanne L., Dimitriadis, Georgios, Doroszmai, Andris, Drout, Maria, Jacobson-Galan, Wynn, Gao, Bore, Ridden-Harper, Ryan, Kilpatrick, Charles Donald, Laskar, Tanmoy, Matthews, David, Rest, Sofia, Smith, Ken W., Stauffer, Candice McKenzie, Stroh, Michael C., Strolger, Louis-Gregory, Terreran, Giacomo, Pierel, Justin D. R., Piro, Anthony L.
We present multi-band ATLAS photometry for SN 2019tsf, a stripped-envelope Type Ib supernova (SESN). The SN shows a triple-peaked light curve and a late (re-)brightening, making it unique among stripped-envelope systems. The re-brightening observatio
Externí odkaz:
http://arxiv.org/abs/2207.07146
Autor:
Cartier, Régis, Hamuy, Mario, Contreras, Carlos, Anderson, Joseph P., Phillips, Mark M., Morrell, Nidia, Stritzinger, Maximilian D., Hueichapan, Emilio D., Clocchiatti, Alejandro, Roth, Miguel, Thomas-Osip, Joanna, González, Luis E.
We present optical photometry and spectroscopy of the superluminous SN 2002gh from maximum light to $+204$ days, obtained as part of the Carnegie Type II Supernova (CATS) project. SN 2002gh is among the most luminous discovered supernovae ever, yet i
Externí odkaz:
http://arxiv.org/abs/2108.09828
Supersoft X-rays sources (SSSs) have been proposed as potential Type Ia supernova (SN Ia) progenitors. If such objects are indeed persistently X-ray luminous and embedded in sufficiently dense ISM, they will be surrounded by extended nebular emission
Externí odkaz:
http://arxiv.org/abs/2007.12316
Akademický článek
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Autor:
Cikota, Aleksandar, Patat, Ferdinando, Wang, Lifan, Wheeler, J. Craig, Bulla, Mattia, Baade, Dietrich, Höflich, Peter, Cikota, Stefan, Clocchiatti, Alejandro, Maund, Justyn R., Stevance, Heloise F., Yang, Yi
Spectropolarimetry enables us to measure the geometry and chemical structure of the ejecta in supernova explosions, which is fundamental for the understanding of their explosion mechanism(s) and progenitor systems. We collected archival data of 35 Ty
Externí odkaz:
http://arxiv.org/abs/1908.07526
Autor:
Yang, Yi, Hoeflich, Peter A., Baade, Dietrich, Maund, Justyn R., Wang, Lifan, Brown, Peter. J., Stevance, Heloise F., Arcavi, Iair, Burke, Jamie, Cikota, Aleksandar, Clocchiatti, Alejandro, Gal-Yam, Avishay, Graham, Melissa. L., Hiramatsu, Daichi, Hosseinzadeh, Griffin, Howell, D. Andrew, Jha, Saurabh W., McCully, Curtis, Patat, Ferdinando, Sand, David. J., Schulze, Steve, Spyromilio, Jason, Valenti, Stefano, Vinko, Jozsef, Wang, Xiaofeng, Wheeler, J. Craig, Yaron, Ofer, Zhang, Jujia
The non-detection of companion stars in Type Ia supernova (SN) progenitor systems lends support to the notion of double-degenerate (DD) systems and explosions triggered by the merging of two white dwarfs. This very asymmetric process should lead to a
Externí odkaz:
http://arxiv.org/abs/1903.10820