Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Lunnan, Ragnhild"'
Autor:
Schulze, Steve, Gal-Yam, Avishay, Dessart, Luc, Miller, Adam A., Woosley, Stan E., Yang, Yi, Bulla, Mattia, Yaron, Ofer, Sollerman, Jesper, Filippenko, Alexei V., Hinds, K-Ryan, Perley, Daniel A., Tsuna, Daichi, Lunnan, Ragnhild, Sarin, Nikhil, Brennan, Sean J., Brink, Thomas G., Bruch, Rachel J., Chen, Ping, Das, Kaustav K., Dhawan, Suhail, Fransson, Claes, Fremling, Christoffer, Gangopadhyay, Anjasha, Irani, Ido, Jerkstrand, Anders, Knezevic, Nikola, Kushnir, Doron, Maeda, Keiichi, Maguire, Kate, Ofek, Eran, Omand, Conor M. B., Qin, Yu-Jing, Sharma, Yashvi, Sit, Tawny, Srinivasaragavan, Gokul P., Strothjohann, Nora L., Takei, Yuki, Waxman, Eli, Yan, Lin, Yao, Yuhan, Zheng, WeiKang, Zimmerman, Erez A., Bellm, Eric C., Coughlin, Michael W., Masci, Frank. J., Purdum, Josiah, Rigault, Mickael, Wold, Avery, Kulkarni, Shrinivas R.
The cores of stars are the cosmic furnaces where light elements are fused into heavier nuclei. The fusion of hydrogen to helium initially powers all stars. The ashes of the fusion reactions are then predicted to serve as fuel in a series of stages, e
Externí odkaz:
http://arxiv.org/abs/2409.02054
Autor:
Hayes, Matthew J., Tan, Jonathan C., Ellis, Richard S., Young, Alice R., Cammelli, Vieri, Singh, Jasbir, Runnholm, Axel, Saxena, Aayush, Lunnan, Ragnhild, Keller, Benjamin W., Monaco, Pierluigi, Laporte, Nicolas, Melinder, Jens
We report first results from a deep near infrared campaign with the Hubble Space Telescope to obtain late-epoch images of the Hubble Ultra-Deep Field (HUDF), 10-15 years after the first epoch data were obtained. The main objectives are to search for
Externí odkaz:
http://arxiv.org/abs/2403.16138
Autor:
Schulze, Steve, Fransson, Claes, Kozyreva, Alexandra, Chen, Ting-Wan, Yaron, Ofer, Jerkstrand, Anders, Gal-Yam, Avishay, Sollerman, Jesper, Yan, Lin, Kangas, Tuomas, Leloudas, Giorgos, Omand, Conor M. B., Smartt, Stephen J., Yang, Yi, Nicholl, Matt, Sarin, Nikhil, Yao, Yuhan, Brink, Thomas G., Sharon, Amir, Rossi, Andrea, Chen, Ping, Chen, Zhihao, Cikota, Aleksandar, De, Kishalay, Drake, Andrew J., Filippenko, Alexei V., Fremling, Christoffer, Freour, Laurane, Fynbo, Johan P. U., Ho, Anna Y. Q., Inserra, Cosimo, Irani, Ido, Kuncarayakti, Hanindyo, Lunnan, Ragnhild, Mazzali, Paolo, Ofek, Eran O., Palazzi, Eliana, Perley, Daniel A., Pursiainen, Miika, Rothberg, Barry, Shingles, Luke J., Smith, Ken, Taggart, Kirsty, Tartaglia, Leonardo, Zheng, WeiKang, Anderson, Joseph P., Cassara, Letizia, Christensen, Eric, Djorgovski, S. George, Galbany, Lluis, Gkini, Anamaria, Graham, Matthew J., Gromadzki, Mariusz, Groom, Steven L., Hiramatsu, Daichi, Howell, D. Andrew, Kasliwal, Mansi M., McCully, Curtis, Müller-Bravo, Tomas E., Paiano, Simona, Paraskeva, Emmanouela, Pessi, Priscila J., Polishook, David, Rau, Arne, Rigault, Mickael, Rusholme, Ben
Abridged - Stars with ZAMS masses between 140 and $260 M_\odot$ are thought to explode as pair-instability supernovae (PISNe). During their thermonuclear runaway, PISNe can produce up to several tens of solar masses of radioactive nickel, resulting i
Externí odkaz:
http://arxiv.org/abs/2305.05796
Autor:
Lin, Weili, Wang, Xiaofeng, Yan, Lin, Gal-Yam, Avishay, Mo, Jun, Brink, Thomas G., Filippenko, Alexei V., Xiang, Danfeng, Lunnan, Ragnhild, Zheng, Weikang, Brown, Peter, Kasliwal, Mansi, Fremling, Christoffer, Blagorodnova, Nadejda, Mirzaqulov, Davron, Ehgamberdiev, Shuhrat A., Lin, Han, Zhang, Kaicheng, Zhang, Jicheng, Yan, Shengyu, Zhang, Jujia, Chen, Zhihao, Deng, Licai, Wang, Kun, Xiao, Lin, Wang, Lingjun
Superluminous supernovae are among the most energetic stellar explosions in the Universe, but their energy sources remain an open question. Here we present long-term observations of one of the closest examples of the hydrogen-poor subclass (SLSNe-I),
Externí odkaz:
http://arxiv.org/abs/2304.10416
Autor:
Tinyanont, Samaporn, Woosley, Stan E., Taggart, Kirsty, Foley, Ryan J., Yan, Lin, Lunnan, Ragnhild, Davis, Kyle W., Kilpatrick, Charles D., Siebert, Matthew R., Schulze, Steve, Ashall, Chris, Chen, Ting-Wan, De, Kishalay, Dimitriadis, Georgios, Dong, Dillon Z., Fremling, Christoffer, Gagliano, Alexander, Jha, Saurabh W., Jones, David O., Kasliwal, Mansi M., Miao, Hao-Yu, Pan, Yen-Chen, Perley, Daniel A., Ravi, Vikram, Rojas-Bravo, César, Sfaradi, Itai, Sollerman, Jesper, Alarcon, Vanessa, Angulo, Rodrigo, Clever, Karoli E., Crawford, Payton, Couch, Cirilla, Dandu, Srujan, Dhara, Atirath, Johnson, Jessica, Lai, Zhisen, Smith, Carli
We present observations of a peculiar hydrogen- and helium-poor stripped-envelope (SE) supernova (SN) 2020wnt, primarily in the optical and near-infrared (near-IR). Its peak absolute bolometric magnitude of -20.9 mag and a rise time of 69~days are re
Externí odkaz:
http://arxiv.org/abs/2212.00177
Autor:
Kangas, Tuomas, Yan, Lin, Schulze, Steve, Fransson, Claes, Sollerman, Jesper, Lunnan, Ragnhild, Omand, Conor M. B., Andreoni, Igor, Burruss, Rick, Chen, Ting-Wan, Drake, Andrew J., Fremling, Christoffer, Gal-Yam, Avishay, Graham, Matthew J., Groom, Steven L., Lezmy, Jeremy, Mahabal, Ashish A., Masci, Frank J., Perley, Daniel, Riddle, Reed, Tartaglia, Leonardo, Yao, Yuhan
We present a sample of 14 hydrogen-rich superluminous supernovae (SLSNe II) from the Zwicky Transient Facility (ZTF) between 2018 and 2020. We include all classified SLSNe with peaks $M_{g}<-20$ mag and with observed \emph{broad} but not narrow Balme
Externí odkaz:
http://arxiv.org/abs/2207.12059
Autor:
Fong, Wen-fai, Nugent, Anya E., Dong, Yuxin, Berger, Edo, Paterson, Kerry, Chornock, Ryan, Levan, Andrew, Blanchard, Peter, Alexander, Kate D., Andrews, Jennifer, Cobb, Bethany E., Cucchiara, Antonino, Fox, Derek, Fryer, Chris L., Gordon, Alexa C., Kilpatrick, Charles D., Lunnan, Ragnhild, Margutti, Raffaella, Miller, Adam, Milne, Peter, Nicholl, Matt, Perley, Daniel, Rastinejad, Jillian, Escorial, Alicia Rouco, Schroeder, Genevieve, Smith, Nathan, Tanvir, Nial, Terreran, Giacomo
We present a comprehensive optical and near-infrared census of the fields of 90 short gamma-ray bursts (GRBs) discovered in 2005-2021, constituting all short GRBs for which host galaxy associations are feasible ($\approx$ 60% of the total Swift short
Externí odkaz:
http://arxiv.org/abs/2206.01763
Autor:
Perley, Daniel A., Sollerman, Jesper, Schulze, Steve, Yao, Yuhan, Fremling, Christoffer, Gal-Yam, Avishay, Ho, Anna Y. Q., Yang, Yi, Kool, Erik C., Irani, Ido, Yan, Lin, Andreoni, Igor, Baade, Dietrich, Bellm, Eric C., Brink, Thomas G., Chen, Ting-Wan, Cikota, Aleksandar, Coughlin, Michael W., Dekany, Richard, Duev, Dmitry A., Filippenko, Alexei V., Hoeflich, Peter, Kasliwal, Mansi M., Kulkarni, S. R., Lunnan, Ragnhild, Masci, Frank J., Maund, Justyn R., Medford, Michael S., Riddle, Reed, Rosnet, Philippe, Shupe, David L., Strotjohann, Nora Linn, Tzanidakis, Anastasios, Zheng, WeiKang
We present observations of SN 2021csp, the second example of a newly-identified type of supernova (Type Icn) hallmarked by strong, narrow, P Cygni carbon features at early times. The SN appears as a fast and luminous blue transient at early times, re
Externí odkaz:
http://arxiv.org/abs/2111.12110
Autor:
Ho, Anna Y. Q., Perley, Daniel A., Gal-Yam, Avishay, Lunnan, Ragnhild, Sollerman, Jesper, Schulze, Steve, Das, Kaustav K., Dobie, Dougal, Yao, Yuhan, Fremling, Christoffer, Adams, Scott, Anand, Shreya, Andreoni, Igor, Bellm, Eric C., Bruch, Rachel J., Burdge, Kevin B., Castro-Tirado, Alberto J., Dahiwale, Aishwarya, De, Kishalay, Dekany, Richard, Drake, Andrew J., Duev, Dmitry A., Graham, Matthew J., Helou, George, Kaplan, David L., Karambelkar, Viraj, Kasliwal, Mansi M., Kool, Erik C., Kulkarni, S. R., Mahabal, Ashish A., Medford, Michael S., Miller, A. A., Nordin, Jakob, Ofek, Eran, Petitpas, Glen, Riddle, Reed, Sharma, Yashvi, Smith, Roger, Stewart, Adam J., Taggart, Kirsty, Tartaglia, Leonardo, Tzanidakis, Anastasios, Winters, Jan Martin
We present a search for extragalactic fast blue optical transients (FBOTs) during Phase I of the Zwicky Transient Facility (ZTF). We identify 38 candidates with durations above half-maximum light 1 d < t1/2 < 12 d, of which 28 have blue (g-r<-0.2 mag
Externí odkaz:
http://arxiv.org/abs/2105.08811
Autor:
Strotjohann, Nora L., Ofek, Eran O., Gal-Yam, Avishay, Bruch, Rachel, Schulze, Steve, Shaviv, Nir, Sollerman, Jesper, Filippenko, Alexei V., Yaron, Ofer, Fremling, Christoffer, Nordin, Jakob, Kool, Erik C., Perley, Dan A., Ho, Anna Y. Q., Yang, Yi, Yao, Yuhan, Soumagnac, Maayane T., Graham, Melissa L., Barbarino, Cristina, Tartaglia, Leonardo, De, Kishalay, Goldstein, Daniel A., Cook, David O., Brink, Thomas G., Taggart, Kirsty, Yan, Lin, Lunnan, Ragnhild, Kasliwal, Mansi, Kulkarni, Shri R., Nugent, Peter E., Masci, Frank J., Rosnet, Philippe, Adams, Scott M., Andreoni, Igor, Bagdasaryan, Ashot, Bellm, Eric C., Burdge, Kevin, Duev, Dmitry A., Dugas, Alison, Frederick, Sara, Goldwasser, Samantha, Hankins, Matthew, Irani, Ido, Karambelkar, Viraj, Kupfer, Thomas, Liang, Jingyi, Neill, James D., Porter, Michael, Riddle, Reed L., Sharma, Yashvi, Short, Phil, Taddia, Francesco, Tzanidakis, Anastasios, van Roestel, Jan, Walters, Richard, Zhuang, Zhuyun
Publikováno v:
ApJ 907 99 (2021)
Interaction-powered supernovae (SNe) explode within an optically-thick circumstellar medium (CSM) that could be ejected during eruptive events. To identify and characterize such pre-explosion outbursts we produce forced-photometry light curves for 19
Externí odkaz:
http://arxiv.org/abs/2010.11196