نتایج جستجو برای: astronomical observatory
تعداد نتایج: 21523 فیلتر نتایج به سال:
In this article, we present the results of astronomical seeing measurements conducted at Maidanak observatory and influence meteorological parameters on seeing. A differential image motion monitor (DIMM) was used to measure Astronomical observations were made between 2018–2022, mainly in summer autumn months. total 266 night 2018 2022. For whole time frame, median value 0.69 arc seconds. With a...
1 Space Science Division, Naval Research Laboratory, Washington, DC, USA, 2 Heliophysics Division, Science Mission Directorate, NASA, Washington, DC, USA, 3 High Altitude Observatory, Boulder, CO, USA, 4 Institut d’Astrophysique Spatiale, CNRS Université Paris-Sud, Orsay, France, 5 INAF National Institute for Astrophysics, Astrophysical Observatory of Torino, Pino Torinese, Italy, 6 Department ...
Sachiko K. Okumura Nobeyama Radio Observatory, 462–2 Nobeyama, Minamimaki, Minamisaku, Nagano 384–1305 [email protected] Satoru Iguchi, Yoshihiro Chikada National Astronomical Observatory, 2–21–1 Osawa, Mitaka, Tokyo 181–8588 Munetake Momose Institute of Astrophysics and Planetary Sciences, Ibaraki University, Bunkyo 2–1–1, Mito, Ibaraki 310–8512 and Mahoko Okiura Department of Astronomy, ...
J. W. Cirtain, L. Golub, L. Lundquist, A. van Ballegooijen, A. Savcheva, M. Shimojo, E. DeLuca, S. Tsuneta, T. Sakao, K. Reeves, M. Weber, R. Kano, N. Narukage, K. Shibasaki 1 Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 Nobeyama Solar Radio Observatory, Nobeyama, Nagano, 384-1305 National Astronomical Observatory of Japan, Mitaka, Tokyo, 181-8588 ISAS, Japan Aerospace Explora...
1 University of Manchester, Jodrell Bank Observatory, Macclesfield, Cheshire SK11 9DL 2 Kapteyn Astronomical Institute, Postbus 800, NL-9700 AV Groningen, the Netherlands California Institute of Technology, Pasadena, CA 91125, USA Netherlands Foundation for Research in Astronomy, Postbus 2, NL-7990 AA Dwingeloo, the Netherlands 5 National Radio Astronomy Observatory, PO Box 0, Socorro, NM 87801...
muḥyī al-dīn maghribī is among the few astronomers of the middle ages whose astronomical system is entirely based on new measures of planetary parameters and whose measurement of the observational data and calculation processes for determining their amount have been carried out in maragha observatory. he has explained the details of his observations and calculations in a volume called talkhīṣ a...
We present a very deep near-infrared spectroscopic observation of a strong Lyα emitter at z = 6.33, SDF J132440.6+273607, which we used to search for Heiiλ1640. This emission line is expected if the target hosts a significant number of population III stars. Even after 42 ksec of integration with the Subaru/OHS spectrograph, no emission-line features are detected in the JH band, which confirms t...
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