Cryogenic near infrared spectropolarimeter for the Daniel K. Inouye Solar Telescope

2016 ◽  
Author(s):  
Andre Fehlmann ◽  
Cynthia Giebink ◽  
Jeffrey R. Kuhn ◽  
Ernesto J. Messersmith ◽  
Donald L. Mickey ◽  
...  
Keyword(s):  
Near Infrared ◽  
Solar Telescope

scholarly journals A new multi-wavelength solar telescope: Optical and Near-infrared Solar Eruption Tracer (ONSET)

2013 ◽  
Vol 13 (12) ◽  
pp. 1509-1517 ◽  
Author(s):  
Cheng Fang ◽  
Peng-Fei Chen ◽  
Zhen Li ◽  
Ming-De Ding ◽  
Yu Dai ◽  
...  
Keyword(s):  
Near Infrared ◽  
Solar Telescope ◽  
Multi Wavelength

scholarly journals Project of the Large Solar Telescope with mirror 3 m in diameter

2020 ◽  
Vol 6 (2) ◽  
pp. 14-29 ◽  
Author(s):  
Victor Grigoryev ◽  
Mikhail Demidov ◽  
Dmitriy Kolobov ◽  
Vasiliy Pulyaev ◽  
Valery Skomorovsky ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Near Infrared ◽  
Solar Physics ◽  
Solar Observatory ◽  
Spectral Lines ◽  
Small Scale ◽  
Solar Telescope ◽  
Rotating Platform ◽  
Solar Telescopes ◽  
Under Construction

One of the most important problems of modern solar physics is the observation of the small-scale structure of the solar atmosphere at various heights (including the chromosphere and corona) in different spectral lines. Such observations can be made only with large solar telescopes whose main mirror has a diameter of at least 3 m. Currently, several large solar telescopes are under construction or development in the world. In 2013 in Russia, the work began on the development of a national large solar telescope with a mirror 3 m in diameter (LST-3), which is a part (subproject) of the National Heliogeophysical Complex of the Russian Academy of Sciences. The telescope is planned to be located in the Sayan Solar Observatory at an altitude of more than 2000 m. The choice was made in favor of the classic axisymmetric Gregory optical layout on an alt-azimuth mount. The scientific equipment of LST-3 will consist of several systems of narrow-band tunable filters and spectrographs for various wave ranges. The equipment will be placed both in the main coude focus on a rotating platform and in the Nasmyth focus. To achieve a diffraction resolution, high-order adaptive optics (AO) will be used. It is assumed that with a certain modification of the optical configuration, LST-3 will work as a 0.7 m mirror coronograph in near infrared lines and can also be used for observing astrophysical objects in the nighttime.

LOCNES: A solar telescope to study the Sun-as-a-star activity in the near infrared

2020 ◽  
Author(s):  
Riccardo U. Claudi ◽  
Adriano Ghedina ◽  
Emanuele Pace ◽  
Anna Maria Di Giorgio ◽  
Valentina D'Orazi ◽  
...  
Keyword(s):  
Near Infrared ◽  
Solar Telescope ◽  
The Sun ◽  
Star Activity

scholarly journals The Chinese Giant Solar Telescope

2013 ◽  
Vol 8 (S300) ◽  
pp. 349-354 ◽  
Author(s):  
Zhong Liu ◽  
Yuanyong Deng ◽  
Haisheng Ji
Keyword(s):  
Near Infrared ◽  
Solar Magnetic Field ◽  
Solar Telescope ◽  
Current Design ◽  
Fine Structures ◽  
Circular System ◽  
Guide Star ◽  
Laser Guide ◽  
Polarization Detection

AbstractChinese Giant Solar Telescope is the next generation ground-based solar telescope. The main science task of this telescope is to observe the ultra fine structures of the solar magnetic field and dynamic field. Due to the advantages in polarization detection and thermal controlling with a symmetrical circular system, the current design of CGST is a 6~8 meter circular symmetrical telescope. The results of simulations and analysis showed that the current design could meet the demands of most science cases not only in infrared bands but also in near infrared bands and even in visible bands. The prominences and the filaments are very important science cases of CGST. The special technologies for prominence observation will be developed, including the day time laser guide star and MCAO. CGST is proposed by all solar observatories and several institutes and universities in China. It is supported by CAS and NSFC (National Natural Science Foundation of China) as a long term astronomical project.

A HIGH RESOLUTION INTEGRAL FIELD SPECTROGRAPH FOR THE EUROPEAN SOLAR TELESCOPE

2013 ◽  
Vol 02 (01) ◽  
pp. 1350007 ◽  
Author(s):  
A. CALCINES ◽  
R. L. LÓPEZ ◽  
M. COLLADOS
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Optical Quality ◽  
Solar Chromosphere ◽  
Solar Telescope ◽  
Infrared Wavelength ◽  
Multi Wavelength ◽  
Integral Field Spectrograph ◽  
Field Unit ◽  
Integral Field

This paper presents the proposal of a high resolution, integral field spectrograph that is currently being designed for the 4-meter aperture European Solar Telescope that will be located in the Canary Islands. This instrument is optimized to study the solar chromosphere and photosphere to allow the investigation of several phenomena concentrated within these two layers. It will be able to observe simultaneously a bidimensional field of view of 80 arcsec2 that is reorganized, using an integral field unit, into 8 long slits of 200 arcsec length by 0.05 arcsec width. It will have the capability to observe different layers of the Sun at the same time due to its multi-wavelength capability that allows the observation of 5 visible and 3 near-infrared wavelength intervals from 3900 to 23,000 Å, with a spectral resolution of about 300,000. The designed instrument is telecentric and presents an optical quality limited by diffraction.

scholarly journals Project of the Large Solar Telescope with mirror 3 m in diameter

2020 ◽  
Vol 6 (2) ◽  
pp. 19-36
Author(s):  
Victor Grigoryev ◽  
Mikhail Demidov ◽  
Dmitriy Kolobov ◽  
Vasiliy Pulyaev ◽  
Valery Skomorovsky ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Near Infrared ◽  
Solar Physics ◽  
Solar Observatory ◽  
Spectral Lines ◽  
Small Scale ◽  
Solar Telescope ◽  
Rotating Platform ◽  
Solar Telescopes ◽  
Under Construction

One of the most important problems of modern solar physics is the observation of the small-scale structure of the solar atmosphere at various heights (including the chromosphere and corona) in different spectral lines. Such observations can be made only with large solar telescopes whose main mirror has a diameter of at least 3 m. Currently, several large solar telescopes are under construction or development in the world. In 2013 in Russia, the work began on the development of a national large solar telescope with a mirror 3 m in diameter (LST-3), which is a part (subproject) of the National Heliogeophysical Complex of the Russian Academy of Sciences. The telescope is planned to be located in the Sayan Solar Observatory at an altitude of more than 2000 m. The choice was made in favor of the classic axisymmetric Gregory optical layout on an alt-azimuth mount. The scientific equipment of LST-3 will consist of several systems of narrow-band tunable filters and spectrographs for various wave ranges. The equipment will be placed both in the main coude focus on a rotating platform and in the Nasmyth focus. To achieve a diffraction resolution, high-order adaptive optics (AO) will be used. It is assumed that with a certain modification of the optical configuration, LST-3 will work as a 0.7 m mirror coronograph in near infrared lines and can also be used for observing astrophysical objects in the nighttime.

scholarly journals The Daniel K. Inouye Solar Telescope – Observatory Overview

Solar Physics ◽  
2020 ◽  
Vol 295 (12) ◽  
Author(s):  
Thomas R. Rimmele ◽  
Mark Warner ◽  
Stephen L. Keil ◽  
Philip R. Goode ◽  
Michael Knölker ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Adaptive Optics ◽  
Near Infrared ◽  
Optical Design ◽  
Thermal Control ◽  
Coronal Magnetic Field ◽  
Physical Parameters ◽  
Solar Telescope ◽  
Accuracy Requirement ◽  
Imaging And Spectroscopy

AbstractWe present an overview of the National Science Foundation’s Daniel K. Inouye Solar Telescope (DKIST), its instruments, and support facilities. The 4 m aperture DKIST provides the highest-resolution observations of the Sun ever achieved. The large aperture of DKIST combined with state-of-the-art instrumentation provide the sensitivity to measure the vector magnetic field in the chromosphere and in the faint corona, i.e. for the first time with DKIST we will be able to measure and study the most important free-energy source in the outer solar atmosphere – the coronal magnetic field. Over its operational lifetime DKIST will advance our knowledge of fundamental astronomical processes, including highly dynamic solar eruptions that are at the source of space-weather events that impact our technological society. Design and construction of DKIST took over two decades. DKIST implements a fast (f/2), off-axis Gregorian optical design. The maximum available field-of-view is 5 arcmin. A complex thermal-control system was implemented in order to remove at prime focus the majority of the 13 kW collected by the primary mirror and to keep optical surfaces and structures at ambient temperature, thus avoiding self-induced local seeing. A high-order adaptive-optics system with 1600 actuators corrects atmospheric seeing enabling diffraction limited imaging and spectroscopy. Five instruments, four of which are polarimeters, provide powerful diagnostic capability over a broad wavelength range covering the visible, near-infrared, and mid-infrared spectrum. New polarization-calibration strategies were developed to achieve the stringent polarization accuracy requirement of 5×10−4. Instruments can be combined and operated simultaneously in order to obtain a maximum of observational information. Observing time on DKIST is allocated through an open, merit-based proposal process. DKIST will be operated primarily in “service mode” and is expected to on average produce 3 PB of raw data per year. A newly developed data center located at the NSO Headquarters in Boulder will initially serve fully calibrated data to the international users community. Higher-level data products, such as physical parameters obtained from inversions of spectro-polarimetric data will be added as resources allow.

Sign in / Sign up

Export Citation Format

Share Document