Results 41 to 50 of about 206,857 (160)

First Results from the CHARA Array. II. A Description of the Instrument

, 2005
The CHARA Array is a six 1-m telescope optical/IR interferometric array located on Mount Wilson California, designed and built by the Center for High Angular Resolution Astronomy of Georgia State University. In this paper we describe the main elements of
Barry D. J., Benson J. A., Buscher D. F., C. E. Ogden, C. H. Hopper, D. H. Berger, H. A. McAlister, Hillwig T. C., J. Sturmann, L. Sturmann, M. A. Shure, N. H. Turner, Perrin G., R. Cadman, S. T. Ridgway, Shao M., T. A. ten Brummelaar, W. G. Bagnuolo, Jr., W. I. Hartkopf   +18 more
core   +2 more sources

Atmospheric phase correction using CARMA-PACS: high angular resolution observations of the FU Orionis star PP 13S* [PDF]

, 2010
We present 0".15 resolution observations of the 227 GHz continuum emission from the circumstellar disk around the FU Orionis star PP 13S*. The data were obtained with the Combined Array for Research in Millimeter-wave Astronomy (CARMA) Paired Antenna ...
Bock, Douglas C., Bolatto, Alberto D., Carlstrom, John, Carpenter, John M., Culverhouse, Thomas L., Isella, Andrea, Joy, Marshall, Kwon, Woojin, Lamb, James W., Leitch, Erik M., Marrone, Daniel P., Muchovej, Stephen J., Plambeck, Richard L., Pérez, Laura M., Scott, Stephen L., Teuben, Peter J., Woody, David P., Wright, Melvyn C. H., Zauderer, B. Ashley   +18 more
core   +1 more source

The MDW Hα Sky Survey: Data Release 1

The Astronomical Journal
The Mittelman–di Cicco–Walker (MDW) H α Sky Survey is an autonomously operated all-sky narrowband (3 nm) H α imaging survey. The survey was founded by amateur astronomers, and the northern sky (decl.
Noor Aftab, Xunhe (Andrew) Zhang, Sean Walker, Dennis di Cicco, David R. Mittelman, Sanya Gupta, Andrew K. Saydjari, Mary Putman, David Schiminovich   +8 more
doaj   +1 more source

Gravitational wave matched filtering by quantum Monte Carlo integration and quantum amplitude amplification

Physical Review Research, 2022
The speedup of heavy numerical tasks by quantum computing is now actively investigated in various fields including data analysis in physics and astronomy. In this paper, we propose a quantum algorithm for matched filtering in gravitational wave (GW) data
Koichi Miyamoto, Gonzalo Morrás, Takahiro S. Yamamoto, Sachiko Kuroyanagi, Savvas Nesseris   +4 more
doaj   +1 more source

AstraLux: the Calar Alto Lucky Imaging Camera

, 2008
AstraLux is the Lucky Imaging camera for the Calar Alto 2.2-m telescope, based on an electron-multiplying high speed CCD. By selecting only the best 1-10% of several thousand short exposure frames, AstraLux provides nearly diffraction limited imaging ...
Brandner, Wolfgang, Henning, Thomas, Hippler, Stefan, Hormuth, Felix, Wagner, Karl   +4 more
core   +1 more source

Mass estimates for visual binaries with incomplete orbits

, 2014
The problem of estimating the total mass of a visual binary when its orbit is incomplete is treated with Bayesian methods. The posterior mean of a mass estimator is approximated by a triple integral over orbital period, time of periastron and orbital ...
Lucy, L. B.
core   +1 more source

A Java Program Generating Barycentric Observer Velocities from JPL Ephemerides

, 2022
This works presents a program which computes velocities of an Earth-bound observatory in the reference frame of the barycenter of the solar system. It feeds from ephemerides files of the Jet Propulsion Laboratory to extract the velocity of the geocenter,
Mathar, Richard J.
core  

Mapping Ground-based Coronagraphic Images to Helioprojective-Cartesian Coordinate System by Image Registration

The Astrophysical Journal
A few ground-based solar coronagraphs have been installed in western China for observing the low-layer corona in recent years. However, determining the helioprojective coordinates for the coronagraphic data with high precision is an important but ...
Feiyang Sha, Yu Liu, Lidong Xia, Yao Chen, Qing Zhou, Yangrui Chen, Chuyu Zhong, Xuefei Zhang, Tengfei Song, Mingzhe Sun, Xiaoyu Yu, Haitang Li, Jacob Oloketuyi, Qiang Liu, Xinjian Wang, Qiwang Luo, Xiaobo Li   +16 more
doaj   +1 more source

MDia and POTS - The Munich Difference Imaging Analysis for the pre-OmegaTranS Project

, 2011
We describe the Munich Difference Imaging Analysis pipeline that we developed and implemented in the framework of the Astro-WISE package to automatically measure high precision light curves of a large number of stellar objects using the difference ...
Koppenhoefer, J., Riffeser, A., Saglia, R. P.   +2 more
core   +1 more source

A Survey of Galaxy Pairs in the SDSS Photometric Images based on Faster-RCNN

The Astronomical Journal
Galaxy pairs hold significant importance in understanding the evolution of galaxies, and the extensive search for a large sample of galaxy pairs is meaningful.
Chen-hui Shi, Hai-feng Yang, Jiang-hui Cai, Li-chan Zhou, Yan-ting He, Mei-hong Su, Xu-jun Zhao, Ya-ling Xun   +7 more
doaj   +1 more source