Results 21 to 30 of about 6,989,374 (162)

SALT spectropolarimetry commissioning [PDF]

, 2010
Includes bibliographical references (p. 111-113).The large (10m) aperture of the Southern African Large Telescope (SALT) coupled with the unique capabilities of the Robert Stobie Spectrograph (RSS), promises unparalleled prospects for polarimetric ...
Brink, Janus Daniel
core   +1 more source

Millimeter/Submillimeter VLBI with a Next Generation Large Radio Telescope in the Atacama Desert

Galaxies, 2022
The proposed next generation Event Horizon Telescope (ngEHT) concept envisions the imaging of various astronomical sources on scales of microarcseconds in unprecedented detail with at least two orders of magnitude improvement in the image dynamic ranges ...
Kazunori Akiyama, Jens Kauffmann, Lynn D. Matthews, Kotaro Moriyama, Shoko Koyama, Kazuhiro Hada   +5 more
doaj   +1 more source

Commissioning a laser metrology truss for active optics on the Large Binocular Telescope

, 2022
LBTO, in partnership with GMTO, has been developing a laser-truss-based metrology system for the active alignment of telescope main optical components.
Sitarski, B., Choi, H., Schoenell, W., Veillet, C., Kuhn, O., Bec, M., Brendel, T., Rakich, A., Hill, J., Zhang, Y.   +9 more
core   +1 more source

Inflatable On-Axis and Off-Axis Space Telescope Designs [PDF]

EPJ Web of Conferences
In the realm of astronomical scientific exploration, deployable and scalable approaches in space telescope systems are reshaping our understanding of the universe.
Kim Daewook, Kim Youngsik, Choi Heejoo, Takashima Yuzuru, Walker Christopher   +4 more
doaj   +1 more source

In-Situ Metrology of Large Segmented Detector Based on Modified Optical Truss

IEEE Photonics Journal, 2023
To precisely map cosmic structures and capture time-domain events, future large survey telescopes will be equipped with segmented detectors that greatly expand their field of view. Segment flatness and assembly accuracy will be essential for them to make
Qichang An, Hanfu Zhang, Xiaoxia Wu, Jianli Wang, Tao Chen, Jingxu Zhang, Hongwen Li   +6 more
doaj   +1 more source

Establishing baseline model performances for optical turbulence forecasting

Astronomy & Astrophysics
Context. Accurate optical turbulence (OT) forecasts help telescopes observe with maximum efficiency, as the performance of adaptive optics (AO) systems strongly depends on turbulence conditions.
de Sepibus M., Masciadri E., Weinberger C., Veillet C., Ragland S.   +4 more
doaj   +1 more source

Miniature Patch and Slot Microstrip Arrays for IoT and ISM Band Applications

IEEE Access, 2020
In this paper we present the design and fabrication of a two-antenna array to resonate at 5.8 GHz, a frequency that satisfies a host of applications, especially those associated with the ISM band, but including IoT applications.
Karen N. Olan-Nunez, Roberto S. Murphy-Arteaga, Edgar Colin-Beltran   +2 more
doaj   +1 more source

The Large Magellanic Cloud with the Cherenkov Telescope Array [PDF]

EPJ Web of Conferences, 2019
The Large Magellanic Cloud (LMC) is a spiral galaxy, satellite of the Milky way with a high star formation activity. It represents a unique laboratory for studying an extended and spatially resolved star-forming galaxy through gamma-ray observatories ...
Isabel Bernardos María, Benito María, Iocco Fabio, Mangano Salvatore, Sergijenko Olga, Karukes Ekaterina, Yang Lili   +6 more
doaj   +1 more source

The Role of the Large Millimeter Telescope in Black Hole Science with the Next-Generation Event Horizon Telescope

Galaxies, 2022
The landmark black hole images recently taken by the Event Horizon Telescope (EHT) have allowed the detailed study of the immediate surroundings of supermassive black holes (SMBHs) via direct imaging. These tantalizing early results motivate an expansion
Sandra Bustamante, Lindy Blackburn, Gopal Narayanan, F. Peter Schloerb, David Hughes   +4 more
doaj   +1 more source

Supernova Remnants with Fermi Large Area Telescope

EPJ Web of Conferences, 2017
The Large Area Telescope (LAT), on-board the Fermi satellite, proved to be, after 8 years of data taking, an excellent instrument to detect and observe Supernova Remnants (SNRs) in a range of energies running from few hundred MeV up to few hundred GeV ...
Caragiulo M., Di Venere L.
doaj   +1 more source