Zobrazeno 1 - 10
of 8 633
pro vyhledávání: '"BROWN, PETER A."'
Autor:
Kareta, Theodore, Vida, Denis, Micheli, Marco, Moskovitz, Nicholas, Wiegert, Paul, Brown, Peter G., McCausland, Phil J. A., Devillpoix, Hadrien A. R., Malečić, Barbara, Prtenjak, Maja Telišman, Śegon, Damir, Shafransky, Benjamin, Farnocchia, Davide
Comparing how an asteroid appears in space to its ablation behavior during atmospheric passage and finally to the properties of associated meteorites represents the ultimate probe of small near-Earth objects. We present observations from the Lowell D
Externí odkaz:
http://arxiv.org/abs/2411.14595
Autor:
Hendrix, Zachary H., Brown, Peter T., Flanagan, Tim, Shepherd, Douglas P., Saurabh, Ayush, Pressé, Steve
Richardson-Lucy deconvolution is widely used to restore images from degradation caused by the broadening effects of a point spread function and corruption by photon shot noise, in order to recover an underlying object. In practice, this is achieved b
Externí odkaz:
http://arxiv.org/abs/2411.00991
Autor:
Mazur, Michael, Campbell-Brown, Margaret, Brown, Peter, Vida, Denis, Gural, Pete, Yang, Zhangqing
The Canadian Automated Meteor Observatory (CAMO) mirror tracking system has been in operation since 2009 and has, to date, produced more than 20,000 two-station meteor observations at meter-level spatial and 10 ms temporal resolution. In 2020, a spec
Externí odkaz:
http://arxiv.org/abs/2410.17346
How much cryptographically-secure randomness can be extracted from a quantum state? This fundamental question probes the absolute limits of quantum random number generation (QRNG) and yet, despite the technological maturity of QRNGs, it remains unsol
Externí odkaz:
http://arxiv.org/abs/2410.16447
Variational techniques have been recently developed to find tighter bounds on the von Neumann entropy in a completely device-independent (DI) setting. This, in turn, has led to significantly improved key rates of DI protocols, in both the asymptotic
Externí odkaz:
http://arxiv.org/abs/2408.12313
Although the risk posed to spacecraft due to meteoroid impacts is dominated by sporadic meteoroids, meteor showers can raise this risk for short periods of time. NASA's Meteoroid Environment Office issues meteor shower forecasts that describe these p
Externí odkaz:
http://arxiv.org/abs/2408.04612
The total energy of a fireball is commonly obtained from optical measurements with an assumed value for luminous efficiency. Acoustic energy measurements offer an independent means of energy estimation. Here we combine optical and acoustic methods to
Externí odkaz:
http://arxiv.org/abs/2408.04078
Selective plane illumination microscopy (SPIM) is an optical sectioning imaging approach based on orthogonal light pathways for excitation and detection. The excitation pathway has an inverse relation between the optical sectioning strength and the e
Externí odkaz:
http://arxiv.org/abs/2407.18862
Autor:
Shrestha, Manisha, Bostroem, K. Azalee, Sand, David J., Hosseinzadeh, Griffin, Andrews, Jennifer E., Dong, Yize, Hoang, Emily, Janzen, Daryl, Pearson, Jeniveve, Jencson, Jacob E., Lundquist, M. J., Mehta, Darshana, Ravi, Aravind P., Retamal, Nicolas Meza, Valenti, Stefano, Brown, Peter J., Jha, Saurabh W., Macrie, Colin, Hsu, Brian, Farah, Joseph, Howell, D. Andrew, McCully, Curtis, Newsome, Megan, Gonzalez, Estefania Padilla, Pellegrino, Craig, Terreran, Giacomo, Kwok, Lindsey, Smith, Nathan, Schwab, Michaela, Martas, Aidan, Munoz, Ricardo R., Medina, Gustavo E., Li, Ting S., Diaz, Paula, Hiramatsu, Daichi, Tucker, Brad E., Wheeler, J. C., Wang, Xiaofeng, Zhai, Qian, Zhang, Jujia, Gangopadhyay, Anjasha, Yang, Yi, Gutierez, Claudia P.
We present high-cadence photometric and spectroscopic observations of supernova (SN) 2024ggi, a Type II SN with flash spectroscopy features which exploded in the nearby galaxy NGC 3621 at $\sim$7 Mpc. The light-curve evolution over the first 30 hours
Externí odkaz:
http://arxiv.org/abs/2405.18490
Autor:
Phillips, M. M., Ashall, C., Brown, Peter J., Galbany, L., Tucker, M. A., Burns, Christopher R., Contreras, Carlos, Hoeflich, P., Hsiao, E. Y., Kumar, S., Morrell, Nidia, Uddin, Syed A., Baron, E., Freedman, Wendy L., Krisciunas, Kevin, Persson, S. E., Piro, Anthony L., Shappee, B. J., Stritzinger, Maximilian, Suntzeff, Nicholas B., Chakraborty, Sudeshna, Kirshner, R. P., Lu, J., Marion, G. H., Polin, Abigail, Shahbandeh, M.
Understanding the nature of the luminous 1991T-like supernovae is of great importance to supernova cosmology as they are likely to have been more common in the early universe. In this paper we explore the observational properties of 1991T-like supern
Externí odkaz:
http://arxiv.org/abs/2405.15027