Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Blagorodnova, Nadejda"'
Autor:
Tranin, Hugo, Blagorodnova, Nadejda, Karambelkar, Viraj, Groot, Paul J., Bloemen, Steven, Vreeswijk, Paul M., Pieterse, Daniëlle, van Roestel, Jan
After the main sequence phase, stars more massive than 2.5 M$_\odot$ rapidly evolve through the Hertzsprung gap as yellow giants and supergiants (YSG), before settling into the red giant branch. Identifying YSG in nearby galaxies is crucial for pinpo
Externí odkaz:
http://arxiv.org/abs/2409.11347
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:
Karambelkar, Viraj R., Kasliwal, Mansi M., Blagorodnova, Nadejda, Sollerman, Jesper, Aloisi, Robert, Anand, Shreya G., Andreoni, Igor, Brink, Thomas G., Bruch, Rachel, Cook, David, Das, Kaustav Kashyap, De, Kishalay, Drake, Andrew, Filippenko, Alexei V., Fremling, Christoffer, Helou, George, Ho, Anna, Jencson, Jacob, Jones, David, Laher, Russ R., Masci, Frank J., Patra, Kishore C., Purdum, Josiah, Reedy, Alexander, Sit, Tawny, Sharma, Yashvi, Tzanidakis, Anastasios, van der Walt, Stefan J., Yao, Yuhan, Zhang, Chaoran
Luminous red novae (LRNe) are transients characterized by low luminosities and expansion velocities, and are associated with mergers or common envelope ejections in stellar binaries. Intermediate-luminosity red transients (ILRTs) are an observational
Externí odkaz:
http://arxiv.org/abs/2211.05141
Autor:
Addison, Harry, Blagorodnova, Nadejda, Groot, Paul J., Erasmus, Nicolas, Jones, David, Mogawana, Orapeleng
Luminous red novae (LRNe) are astrophysical transients believed to be caused by the partial ejection of a binary star's common envelope (CE) and the merger of its components. The formation of the CE is likely to occur during unstable mass transfer, i
Externí odkaz:
http://arxiv.org/abs/2206.07070
Autor:
Jencson, Jacob E., Andrews, Jennifer E., Bond, Howard E., Karambelkar, Viraj, Sand, David J., van Dyk, Schuyler D., Blagorodnova, Nadejda, Boyer, Martha L., Kasliwal, Mansi M., Lau, Ryan M., Mohamed, Shazrene, Williams, Robert, Whitelock, Patricia A., Amaro, Rachael C., Bostroem, K. Azalee, Dong, Yize, Lundquist, Michael J., Valenti, Stefano, Wyatt, Samuel D., Burke, Jamie, De, Kishalay, Jha, Saurabh W., Johansson, Joel, Rojas-Bravo, César, Coulter, David A., Foley, Ryan J., Gehrz, Robert D., Haislip, Joshua, Hiramatsu, Daichi, Howell, D. Andrew, Kilpatrick, Charles D., Masci, Frank J., McCully, Curtis, Ngeow, Chow-Choong, Pan, Yen-Chen, Pellegrino, Craig, Piro, Anthony L., Kouprianov, Vladimir, Reichart, Daniel E., Rest, Armin, Rest, Sofia, Smith, Nathan
Nova eruptions, thermonuclear explosions on the surfaces of white dwarfs (WDs), are now recognized to be among the most common shock-powered astrophysical transients. We present the early discovery and rapid ultraviolet (UV), optical, and infrared (I
Externí odkaz:
http://arxiv.org/abs/2102.11291
Autor:
Blagorodnova, Nadejda, Klencki, Jakub, Pejcha, Ondrej, Vreeswijk, Paul M., Bond, Howard E., Burdge, Kevin B., De, Kishalay, Fremling, Christoffer, Gehrz, Robert D., Jencson, Jacob E., Kasliwal, Mansi M., Kupfer, Thomas, Lau, Ryan M., Masci, Frank J., Rich, R. Michael
Publikováno v:
A&A 653, A134 (2021)
Luminous Red Novae (LRNe) are astrophysical transients associated with the partial ejection of a binary system's common envelope (CE) shortly before its merger. Here we present the results of our photometric and spectroscopic follow-up campaign of AT
Externí odkaz:
http://arxiv.org/abs/2102.05662
Autor:
Wee, Jerrick, Blagorodnova, Nadejda, Penprase, Bryan Edward, Facey, Jett Pierce, Morioka, Taiga, Corbett, Hank, Barlow, Brad N., Kupfer, Thomas, Law, Nicholas M., Ratzloff, Jeffrey K., Howard, Ward S., Chavez, Ramses Gonzalez, Glazier, Amy, Soto, Alan Vasquez, Horiuchi, Takashi
We present optical and infrared photometry of the classical nova V906 Car, also known as Nova Car 2018 and ASASSN-18fv, discovered by ASASS-SN survey on 16.32 March 2018 UT (MJD 58193.0). The nova reached its maximum on MJD 58222.56 at $V_{\rm{max}}
Externí odkaz:
http://arxiv.org/abs/2006.14336
Autor:
Blagorodnova, Nadejda, Karambelkar, Viraj, Adams, Scott M., Kasliwal, Mansi M., Kochanek, Christopher S., Dong, Subo, Campbell, Heather, Hodgkin, Simon, Jencson, Jacob E., Johansson, Joel, Kozlowski, Szymon, Laher, Russ R., Masci, Frank, Nugent, Peter, Rebbapragada, Umaa D.
M31-2015-LRN is a likely stellar merger discovered in the Andromeda Galaxy in 2015. We present new optical to mid-infrared photometry and optical spectroscopy for this event. Archival data shows that the source started to brighten $\sim$2 years befor
Externí odkaz:
http://arxiv.org/abs/2004.04757
Autor:
Bolin, Bryce T., Lisse, Carey M., Kasliwal, Mansi M., Quimby, Robert, Tan, Hanjie, Copperwheat, Chris, Lin, Zhong-Yi, Morbidelli, Alessandro, Abe, Lyu, Bendjoya, Philippe, Bauer, James, Burdge, Kevin B., Coughlin, Michael, Fremling, Christoffer, Itoh, Ryosuke, Koss, Michael, Masci, Frank J., Maeno, Syota, Mamajek, Eric E., Marocco, Federico, Murata, Katsuhiro, Rivet, Jean-Pierre, Sitko, Michael L., Stern, Daniel, Vernet, David, Walters, Richard, Yan, Lin, Andreoni, Igor, Bhalerao, Varun, Bodewits, Dennis, De, Kishalay, Deshmukh, Kunal P., Bellm, Eric C., Blagorodnova, Nadejda, Buzasi, Derek, Cenko, S. Bradley, Chang, Chan-Kao, Chojnowski, Drew, Dekany, Richard, Duev, Dmitry A., Graham, Matthew, Juric, Mario, Kramer, Emily A., Kulkarni, Shrinivas R., Kupfer, Thomas, Mahabal, Ashish, Neill, James D., Ngeow, Chow-Choong, Penprase, Bryan, Riddle, Reed, Rodriguez, Hector, Rosnet, Philippe, Smith, Roger M., Sollerman, Jesper, Soumagnac, Maayane T.
We present visible and near-infrared photometric and spectroscopic observations of interstellar object 2I/Borisov taken from 2019 September 10 to 2019 November 29 using the GROWTH, the APO ARC 3.5 m and the NASA/IRTF 3.0 m combined with post and pre-
Externí odkaz:
http://arxiv.org/abs/1910.14004
Autor:
Frederick, Sara, Gezari, Suvi, Graham, Matthew J., Cenko, S. Bradley, van Velzen, Sjoert, Stern, Daniel, Blagorodnova, Nadejda, Kulkarni, Shrinivas R., Yan, Lin, De, Kishalay, Fremling, U. Christoffer, Hung, Tiara, Kara, Erin, Shupe, David L., Ward, Charlotte, Bellm, Eric C., Dekany, Richard, Duev, Dmitry A., Feindt, Ulrich, Giomi, Matteo, Kupfer, Thomas, Laher, Russ R., Masci, Frank J., Miller, Adam A., Neill, James D., Ngeow, Chow-Choong, Patterson, Maria T., Porter, Michael, Rusholme, Ben, Sollerman, Jesper, Walters, Richard
We report the discovery of six active galactic nuclei (AGN) caught "turning on" during the first nine months of the Zwicky Transient Facility (ZTF) survey. The host galaxies were classified as LINERs by weak narrow forbidden line emission in their ar
Externí odkaz:
http://arxiv.org/abs/1904.10973