Zobrazeno 1 - 10
of 316
pro vyhledávání: '"De Miguel, Enrique"'
Autor:
Patterson, Joseph, Epstein-Martin, Marguerite, Enenstein, Josie, Kemp, Jonathan, Sabo, Richard, Cooney, Walt, Vanmunster, Tonny, Dubovsky, Pavol, Hambsch, Franz-Josef, Myers, Gordon, Lemay, Damien, Sokolovsky, Kirill, Collins, Donald, Campbell, Tut, Roberts, George, Richmond, Michael, Brincat, Stephen, Ulowetz, Joseph, Dvorak, Shawn, Tordai, Tamas, Dufoer, Sjoerd, Cahaly, Andrew, Galdies, Charles, Goff, Bill, Wilkin, Francis, de Miguel, Enrique, Wood, Matt
We present time-series photometry during eruption of the extremely fast nova V1674 Herculis (Nova Her 2021). The 2021 light curve showed periodic signals at 0.152921(3) d and 501.486(5) s, which we interpret as respectively the orbital and white dwar
Externí odkaz:
http://arxiv.org/abs/2207.00181
Autor:
Niijima, Keito, Kimura, Mariko, Wakamatsu, Yasuyuki, Kato, Taichi, Nogami, Daisaku, Isogai, Keisuke, Kojiguchi, Naoto, Ohnishi, Ryuhei, Shidatsu, Megumi, Stone, Geoffrey, Hambsch, Franz-Josef, Tordai, Tamás, Richmond, Michael, Vanmunster, Tonny, Myers, Gordon, Brincat, Stephen M., Dubovsky, Pavol A., Medulka, Tomas, Kudzej, Igor, Parimucha, Stefan, Littlefield, Colin, Monard, Berto, Ulowetz, Joseph, Pavlenko, Elena P., Antonyuk, Oksana I., Sosnovskij, Aleksei A., Baklanov, Aleksei V., Antoniuk, Kirill A., Pit, Nikolai V., Belan, Sergei P., Babina, Julia V., Sklyanov, Aleksandr S., Zaostrozhnykh, Anna M., Simon, Andrew V., Cook, Lewis M., Miller, Ian, Itoh, Hiroshi, Licchelli, Domenico, Dvorak, Shawn, Sabo, Richard, Ögmen, Yenal, Starkey, Donn R., Nelson, Peter, de Miguel, Enrique, Galdies, Charles, Menzies, Kenneth, Kiyota, Seiichiro, Oksanen, Arto, Pickard, Roger D., Zubareva, Alexandra M., Wenzel, Klaus, Denisenko, Denis
Publikováno v:
Variable Star Bulletin, 74, 2021
How a black hole accretes matter and how this process is regulated are fundamental but unsolved questions in astrophysics. In transient black-hole binaries, a lot of mass stored in an accretion disk is suddenly drained to the central black hole becau
Externí odkaz:
http://arxiv.org/abs/2107.03681
Autor:
Patterson, Joseph, Kemp, Jonathan, Monard, Berto, Myers, Gordon, de Miguel, Enrique, Hambsch, Franz-Josef, Warhurst, Paul, Rea, Robert, Dvorak, Shawn, Menzies, Kenneth, Vanmunster, Tonny, Roberts, George, Campbell, Tut, Starkey, Donn, Ulowetz, Joseph, Rock, John, Seargeant, Jim, Boardman, James, Lemay, Damien, Cejudo, David, Knigge, Christian
We present a study of the orbital light curves of the recurrent nova IM Normae since its 2002 outburst. The broad "eclipses" recur with a 2.46 hour period, which increases on a timescale of 1.28(16)x10^6 years. Under the assumption of conservative ma
Externí odkaz:
http://arxiv.org/abs/2010.07812
Autor:
Patterson, Joseph, de Miguel, Enrique, Kemp, Jonathan, Dvorak, Shawn, Monard, Berto, Hambsch, Franz-Josef, Vanmunster, Tonny, Skillman, David R., Cejudo, David, Campbell, Tut, Roberts, George, Jones, Jim, Cook, Lewis M., Bolt, Greg, Rea, Robert, Ulowetz, Joseph, Krajci, Thomas, Menzies, Kenneth, Lowther, Simon, Goff, William, Stein, William, Wood, Matt A., Myers, Gordon, Stone, Geoffrey, Uthas, Helena, Karamehmetoglu, Emir, Seargeant, Jim, McCormick, Jennie
We report the detailed history of spin-period changes in five intermediate polars (DQ Herculis, AO Piscium, FO Aquarii, V1223 Sagittarii, and BG Canis Minoris) during the 30-60 years since their original discovery. Most are slowly spinning up, althou
Externí odkaz:
http://arxiv.org/abs/2001.07288
Autor:
Kato, Taichi, Isogai, Keisuke, Wakamatsu, Yasuyuki, Hambsch, Franz-Josef, Itoh, Hiroshi, Tordai, Tamas, Vanmunster, Tonny, Dubovsky, Pavol A., Kudzej, Igor, Medulka, Tomas, Kimura, Mariko, Ohnishi, Ryuhei, Monard, Berto, Pavlenko, Elena P., Antonyuk, Kirill A., Pit, Nikolaj V., Antonyuk, Oksana I., Babina, Julia V., Baklanov, Aleksei V., Sosnovskij, Aleksei A., Pickard, Roger D., Miller, Ian, Maeda, Yutaka, de Miguel, Enrique, Brincat, Stephen M., Licchelli, Domenico, Cook, Lewis M., Shugarov, Sergey Yu., Zaostrojnykh, Anna M., Chochol, Drahomir, Golysheva, Polina, Katysheva, Natalia, Zubareva, Alexandra M., Stone, Geoff, Kasai, Kiyoshi, Starr, Peter, Littlefield, Colin, Kiyota, Seiichiro, Andreev, Maksim V., Sergeev, Alexandr V., Ruiz, Javier, Myers, Gordon, Simon, Andrii O., Vasylenko, Volodymyr V., Soldan, Francisco, Ogmen, Yenal, Nakajima, Kazuhiro, Nelson, Peter, Masi, Gianluca, Menzies, Kenneth, Sabo, Richard, Bolt, Greg, Dvorak, Shawn, Stanek, Krzysztof Z., Shields, Joseph V., Kochanek, Christopher S., Holoien, Thomas W. -S., Shappee, Benjamin, Prieto, Jose L., Kojima, Tadashi, Nishimura, Hideo, Kaneko, Shizuo, Fujikawa, Shigehisa, Stubbings, Rod, Muyllaert, Eddy, Poyner, Gary, Moriyama, Masayuki, Maehara, Hiroyuki, Schmeer, Patrick, Denisenko, Denis
Continuing the project described by Kato et al. (2009, PASJ, 61, S395, arXiv/0905.1757), we collected times of superhump maxima for 102 SU UMa-type dwarf novae observed mainly during the 2017 season and characterized these objects. WZ Sge-type stars
Externí odkaz:
http://arxiv.org/abs/1911.04645
Autor:
Littlefield, Colin, Garnavich, Peter, Kennedy, Mark R., Patterson, Joseph, Kemp, Jonathan, Stiller, Robert A., Hambsch, Franz-Josef, Heras, Teofilo Arranz, Myers, Gordon, Stone, Geoffrey, Sjoberg, George, Dvorak, Shawn, Nelson, Peter, Popov, Velimir, Bonnardeau, Michel, Vanmunster, Tonny, de Miguel, Enrique, Alton, Kevin B., Harris, Barbara, Cook, Lewis M., Graham, Keith A., Brincat, Stephen M., Lane, David J., Foster, James, Pickard, Roger, Sabo, Richard, Vietje, Brad, Lemay, Damien, Briol, John, Krumm, Nathan, Dadighat, Michelle, Goff, William, Solomon, Rob, Padovan, Stefano, Bolt, Greg, Kardasis, Emmanuel, Debackere, Andre, Thrush, Jeff, Stein, William, Coulter, Daniel, Tsehmeystrenko, Valery, Gout, Jean-Francois, Lewin, Pablo, Galdies, Charles, Fernandez, David Cejudo, Walker, Gary, Boardman Jr., James, Pellett, Emil
The intermediate polar FO Aquarii (FO Aqr) experienced its first-reported low-accretion states in 2016, 2017, and 2018, and using newly available photographic plates, we identify pre-discovery low states in 1965, 1966, and 1974. The primary focus of
Externí odkaz:
http://arxiv.org/abs/1904.11505
Autor:
Kato, Taichi, Pavlenko, Elena P., Pit, Nikolaj V., Antonyuk, Kirill A., Antonyuk, Oksana I., Babina, Julia V., Baklanov, Aleksei V., Sosnovskij, Aleksei A., Belan, Sergey P., Maeda, Yutaka, Sugiura, Yuki, Sumiya, Sho, Matsumoto, Hanami, Ito, Daiki, Nikai, Kengo, Kojiguchi, Naoto, Matsumoto, Katsura, Dubovsky, Pavol A., Kudzej, Igor, Medulka, Tomas, Wakamatsu, Yasuyuki, Ohnishi, Ryuhei, Seki, Takaaki, Isogai, Keisuke, Simon, Andrii O., Romanjuk, Yaroslav O., Baransky, Alexsandr R., Sergeev, Aleksandr V., Godunova, Vira G., Izviekova, Inna O., Kozlov, Volodymyr A., Sklyanov, Aleksandr S., Zhuchkov, Roman Ya., Gutaev, Alexei G., Ponomarenko, Vasyl O., Vasylenko, Volodymyr V., Miller, Ian, Kasai, Kiyoshi, Dvorak, Shawn, Menzies, Kenneth, de Miguel, Enrique, Brincat, Stephen M., Pickard, Roger D.
We found that the SU UMa-type dwarf nova NY Ser in the period gap [orbital period 0.097558(6) d] showed standstills twice in 2018. This is the first clear demonstration of a standstill occurring between superoutbursts of an SU UMa-type dwarf nova. Th
Externí odkaz:
http://arxiv.org/abs/1901.05100
Autor:
Kimura, Mariko, Isogai, Keisuke, Kato, Taichi, Taguchi, Kenta, Wakamatsu, Yasuyuki, Hambsch, Franz-Josef, Monard, Berto, Myers, Gordon, Dvorak, Shawn, Starr, Peter, Brincat, Stephen M., de Miguel, Enrique, Ulowetz, Joseph, Itoh, Hiroshi, Stone, Geoff, Nogami, Daisaku
We present optical photometry of superoutbursts in 2016 of two WZ Sge-type dwarf novae (DNe), ASASSN-16dt and ASASSN-16hg. Their light curves showed a dip in brightness between the first plateau stage with no ordinary superhumps (or early superhumps)
Externí odkaz:
http://arxiv.org/abs/1803.03179
Autor:
de Miguel, Enrique, Patterson, Joseph, Kemp, Jonathan, Myers, Gordon, Rea, Robert, Krajci, Thomas, Monard, Berto, Cook, Lewis
We report a long-term study of the eclipse times in the 10-minute helium binary ES Ceti. The binary period increases rapidly, with P/P-dot = 6.2x10^6 yr. This is consistent with the assumption that gravitational radiation (GR) drives the mass transfe
Externí odkaz:
http://arxiv.org/abs/1801.01049
Autor:
Patterson, Joseph, Stone, Geoffrey, Kemp, Jonathan, Skillman, David, de Miguel, Enrique, Potter, Michael, Starkey, Donn, Uthas, Helena, Jones, Jim, Slauson, Douglas, Koff, Robert, Myers, Gordon, Menzies, Kenneth, Campbell, Tut, Roberts, George, Foote, Jerry, Vanmunster, Tonny, Cook, Lewis M., Krajci, Thomas, Ogmen, Yenal, Sabo, Richard, Seargeant, Jim
We report a long-term (1961-2017) study of the eclipse times in the dwarf nova WZ Sagittae, in an effort to learn its rate of orbital-period change. Some wiggles with a time scale of 20-50 years are apparent, and a connection with the 23-year interva
Externí odkaz:
http://arxiv.org/abs/1801.00189