Results 71 to 80 of about 13,470 (289)

A Hubble Space Telescope Survey for Novae in M87. I. Light and Color Curves, Spatial Distributions, and the Nova Rate [PDF]

, 2016
The Hubble Space Telescope has imaged the central part of M87 over a 10 week span, leading to the discovery of 32 classical novae (CNe) and nine fainter, likely very slow, and/or symbiotic novae.
Baltz, Edward A., Doyle, Trisha F., Lauer, Tod R., Madrid, Juan P., Mikołajewska, Joanna, Neill, J. D., Shara, Michael M., Welch, D. L., Zurek, David   +8 more
core   +3 more sources

Ultraviolet observations of classical novae in outburst [PDF]

International Astronomical Union Colloquium, 1990
More than a dozen classical novae in outburst have been observed with the International Ultraviolet Explorer since its launch in 1978. These data represent a crucial breakthrough in understanding several aspects of the classical novae phenomenon including nucleosynthesis, the energetics of the explosion, the dynamics of the mass ejection, and the ...
Angelo Cassatella, Rosario Gonzalez-Riestra   +1 more
openaire   +1 more source

Pathogen‐Centric Activation of an Azoreductase‐Responsive Antibody‐Antibiotic Conjugate for the Targeted Eradication of MRSA

Advanced Science, EarlyView.
A pathogen‐centric antibody‐antibiotic conjugate (AZO‐AAC) releases antibiotics via bacterial azoreductase, independent of host‐lysosomal function. This mechanism achieves nanomolar eradication of both planktonic and intracellular methicillin‐resistant Staphylococcus aureus (MRSA).
Qi Cheng, Lianqi Liu, Chenghua Liu, Fei Xie, Jingwen Dong, Xiaoyu Qin, Shunxiang Huang, Xian Li, Xingyuan Kou, Hongbin Deng, Jiannan Feng, Wu Zhong, Dian Xiao, Xinbo Zhou   +13 more
wiley   +1 more source

Modeling of the Super-Eddington Phase for Classical Novae: Five IUE Novae

, 2006
We present a light curve model for the super-Eddington luminosity phase of five classical novae observed with IUE. Optical and UV light curves are calculated based on the optically thick wind theory with a reduced effective opacity for a porous ...
Andrea J., Brosch N., Brosch N., Caldwell J. A. R., Caldwell J. A. R., Camillieri P., Cassatella A., Chochol D., Collins P. L., Duerbeck H. W., Duerbeck H. W., Friedjung M., Izumi Hachisu, Kikuchi S., Klare G., Klare G., Kosai H., Kozai Y., Mariko Kato, Morrison W., Nariai K., Ortolani S., Prialnik D., Saizar P., Schwarz G. J., Seaton M. J., Sonneborn G., Stickland D. J., Vanlandingham K. M, Williams R. E.   +29 more
core   +1 more source

A Hubble Space Telescope Survey for Novae in M87. II. Snuffing out the Maximum Magnitude–Rate of Decline Relation for Novae as a Non-standard Candle, and a Prediction of the Existence of Ultrafast Novae [PDF]

, 2017
The extensive grid of numerical simulations of nova eruptions from the work of Yaron et al. first predicted that some classical novae might significantly deviate from the Maximum Magnitude–Rate of Decline (MMRD) relation, which purports to characterize ...
Baltz, Edward A., Doyle, Trisha, Kovetz, Attay, Lauer, Tod R., Madrid, Juan P., Mikołajewska, Joanna, Neill, J. D., Prialnik, Dina, Shara, Michael M., Welch, D. L., Yaron, Ofer, Zurek, David   +11 more
core   +2 more sources

Macrophage Phenotype Detection Methodology on Textured Surfaces via Nuclear Morphology Using Machine Learning

Advanced Intelligent Discovery, EarlyView.
A novel machine learning approach classifies macrophage phenotypes with up to 98% accuracy using only nuclear morphology from DAPI‐stained images. Bypassing traditional surface markers, the method proves robust even on complex textured biomaterial surfaces. It offers a simpler, faster alternative for studying macrophage behavior in various experimental
Oleh Mezhenskyi, Kateryna Andriienkova, Tetyana Goldanova, Ezgi Antmen, Thibaut Soubrie, Nihal Engin Vrana   +5 more
wiley   +1 more source

Millinovae: A New Class of Transient Supersoft X-Ray Sources without a Classical Nova Eruption

The Astrophysical Journal Letters
Some accreting binary systems containing a white dwarf (such as classical novae or persistent supersoft sources) are seen to emit low-energy X-rays with temperatures of  ∼ 10 ^6 K and luminosities exceeding 10 ^35 erg s ^−1 .
Przemek Mróz, Krzysztof Król, Hélène Szegedi, Philip Charles, Kim L. Page, Andrzej Udalski, David A. H. Buckley, Gulab Dewangan, Pieter Meintjes, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Radosław Poleski, Jan Skowron, Krzysztof Ulaczyk, Mariusz Gromadzki, Krzysztof Rybicki, Patryk Iwanek, Marcin Wrona, Mateusz J. Mróz   +20 more
doaj   +1 more source

V2487 Oph 1998: a post nova in an intermediate polar

EPJ Web of Conferences, 2014
V2487 Oph (Nova Oph 1998) is a classical nova that exploded in 1998. XMM-Newton observations performed between 2 and 9 years after the explosion showed emission related to restablished accretion, and indicative of a magnetic white dwarf.
Hernanz Margarita
doaj   +1 more source

A Detailed Observational Analysis of V1324 Sco, the Most Gamma-Ray Luminous Classical Nova to Date

, 2017
It has recently been discovered that some, if not all, classical novae emit GeV gamma rays during outburst, but the mechanisms involved in the production of the gamma rays are still not well understood.
Abe, F., Bennett, D. P., Bensby, Thomas, Bohlsen, Terry, Bohlsen, Terry, Bond, I. A., Buil, Christian, Cheung, C. C., Chomiuk, Laura, Christie, Grant W., Dong, Subo, Finzell, Thomas, Gould, Andy, Koshimoto, N., Linford, Justin D., McCormick, Jennie, Metzger, Brian D., Mioduszewski, Amy, Mukai, Koji, Natusch, Tim, Nelson, Thomas, P., Prieto, Jose, Rupen, Michael P., Sokoloski, Jennifer L., Starrfield, Sumner, Sumi, T., Suzuki, D., Taylor, Gregory B., Tristram, J., Wagner, R. Mark, Walter, Frederick M., Weston, Jennifer H. S., Woodward, Charles E., Yee, Jennifer, Zheng, Yong   +35 more
core   +1 more source

A new experiment for the determination of the 18F(p,alpha) reaction rate at nova temperatures [PDF]

, 2002
The 18F(p,alpha) reaction was recognized as one of the most important for gamma ray astronomy in novae as it governs the early 511 keV emission. However, its rate remains largely uncertain at nova temperatures.
6th International Conference on Classical Nova Explosions (NovaConf), Angulo, C., Assuncao, M., Beaumel, D., Bouzid, B., Cherubini, S., Coc, A., Couder, M., de Oliveira Santos, F., de Sereville, N., Demaret, Paul, Figuera, P., Fortier, S., Gaelens, M., Hammache, F., Kiener, J., Labar, Daniel, Lefebvre, A., Leleux, Pierre, Loiselet, Marc, Ninane, Alain, Ouichaoui, S., Ryckewaert, Guido, Smirnova, N., Tatischeff, V., Thibaud, J.P.   +25 more
core   +3 more sources