FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4301168978> ?p ?o ?g. }

• W4301168978 endingPage "A12" @default.
• W4301168978 startingPage "A12" @default.
• W4301168978 abstract "LARS is an Absolute Reference Spectrograph designed for ultra-precise solar observations. The high-resolution echelle spectrograph of the Vacuum Tower Telescope is supported by a state-of-the-art laser frequency comb to calibrate the solar spectrum on an absolute wavelength scale. In this article, we describe the scientific instrument and focus on the upgrades in the last two years to turn the prototype into a turn-key system. The pursued goal was to improve the short-term and long-term stability of the systems, and enable a user-friendly and more versatile operation of the instrument. The first upgrade involved the modernization of the frequency comb. The Fabry-Perot cavities were adjusted to filter to a repetition frequency of 8GHz. A technologically matured photonic crystal fiber was implemented for spectral broadening. The second, quite recent upgrade was performed on the optics feeding the sunlight into a single-mode fiber connected to the spectrograph. A motorized translation stage was deployed to allow the automated selection of three different fields-of-view with diameters of 1, 3, and 10 for the analysis of the solar spectrum. The successful upgrades allow for long-term observations of up to several hours per day with a stable spectral accuracy of 1 m/s limited by the spectrograph. Stable, user-friendly operation of the instrument is supported. The selection of the pre-aligned fiber to change the field of view can now be done within seconds. LARS offers the possibility to observe absolute wavelength positions of spectral lines and Doppler velocities in the solar atmosphere. First results demonstrate the capabilities of the instrument for solar science. The accurate measurement of the solar convection, p-modes, and atmospheric waves will enhance our knowledge of the solar atmosphere and its physical conditions to improve current atmospheric models." @default.
• W4301168978 created "2022-10-04" @default.
• W4301168978 creator A5000115308 @default.
• W4301168978 creator A5006493901 @default.
• W4301168978 creator A5030233609 @default.
• W4301168978 creator A5035452425 @default.
• W4301168978 creator A5055197519 @default.
• W4301168978 creator A5059039670 @default.
• W4301168978 creator A5066751749 @default.
• W4301168978 date "2017-10-30" @default.
• W4301168978 modified "2023-10-01" @default.
• W4301168978 title "LARS: An Absolute Reference Spectrograph for solar observations" @default.
• W4301168978 cites W1535651291 @default.
• W4301168978 cites W1965635970 @default.
• W4301168978 cites W1971115498 @default.
• W4301168978 cites W1981195233 @default.
• W4301168978 cites W1982339286 @default.
• W4301168978 cites W2003124783 @default.
• W4301168978 cites W2015423371 @default.
• W4301168978 cites W2078836015 @default.
• W4301168978 cites W2080675302 @default.
• W4301168978 cites W2099248924 @default.
• W4301168978 cites W2118385536 @default.
• W4301168978 cites W2119032654 @default.
• W4301168978 cites W2139214910 @default.
• W4301168978 cites W2144852158 @default.
• W4301168978 cites W2150768895 @default.
• W4301168978 cites W2154260301 @default.
• W4301168978 cites W3099986677 @default.
• W4301168978 cites W3104115603 @default.
• W4301168978 cites W3104338355 @default.
• W4301168978 cites W4242540627 @default.
• W4301168978 cites W4290047213 @default.
• W4301168978 doi "https://doi.org/10.1051/0004-6361/201731164" @default.
• W4301168978 hasPublicationYear "2017" @default.
• W4301168978 type Work @default.
• W4301168978 citedByCount "12" @default.
• W4301168978 countsByYear W43011689782018 @default.
• W4301168978 countsByYear W43011689782019 @default.
• W4301168978 countsByYear W43011689782020 @default.
• W4301168978 countsByYear W43011689782021 @default.
• W4301168978 countsByYear W43011689782023 @default.
• W4301168978 crossrefType "journal-article" @default.
• W4301168978 hasAuthorship W4301168978A5000115308 @default.
• W4301168978 hasAuthorship W4301168978A5006493901 @default.
• W4301168978 hasAuthorship W4301168978A5030233609 @default.
• W4301168978 hasAuthorship W4301168978A5035452425 @default.
• W4301168978 hasAuthorship W4301168978A5055197519 @default.
• W4301168978 hasAuthorship W4301168978A5059039670 @default.
• W4301168978 hasAuthorship W4301168978A5066751749 @default.
• W4301168978 hasBestOaLocation W43011689781 @default.
• W4301168978 hasConcept C111919701 @default.
• W4301168978 hasConcept C120665830 @default.
• W4301168978 hasConcept C121332964 @default.
• W4301168978 hasConcept C124967146 @default.
• W4301168978 hasConcept C127313418 @default.
• W4301168978 hasConcept C1276947 @default.
• W4301168978 hasConcept C142757262 @default.
• W4301168978 hasConcept C2778861254 @default.
• W4301168978 hasConcept C2780615140 @default.
• W4301168978 hasConcept C2780684822 @default.
• W4301168978 hasConcept C2780848835 @default.
• W4301168978 hasConcept C41008148 @default.
• W4301168978 hasConcept C4839761 @default.
• W4301168978 hasConcept C62649853 @default.
• W4301168978 hasConceptScore W4301168978C111919701 @default.
• W4301168978 hasConceptScore W4301168978C120665830 @default.
• W4301168978 hasConceptScore W4301168978C121332964 @default.
• W4301168978 hasConceptScore W4301168978C124967146 @default.
• W4301168978 hasConceptScore W4301168978C127313418 @default.
• W4301168978 hasConceptScore W4301168978C1276947 @default.
• W4301168978 hasConceptScore W4301168978C142757262 @default.
• W4301168978 hasConceptScore W4301168978C2778861254 @default.
• W4301168978 hasConceptScore W4301168978C2780615140 @default.
• W4301168978 hasConceptScore W4301168978C2780684822 @default.
• W4301168978 hasConceptScore W4301168978C2780848835 @default.
• W4301168978 hasConceptScore W4301168978C41008148 @default.
• W4301168978 hasConceptScore W4301168978C4839761 @default.
• W4301168978 hasConceptScore W4301168978C62649853 @default.
• W4301168978 hasFunder F4320320879 @default.
• W4301168978 hasLocation W43011689781 @default.
• W4301168978 hasLocation W43011689782 @default.
• W4301168978 hasLocation W43011689783 @default.
• W4301168978 hasLocation W43011689784 @default.
• W4301168978 hasOpenAccess W4301168978 @default.
• W4301168978 hasPrimaryLocation W43011689781 @default.
• W4301168978 hasRelatedWork W1504515101 @default.
• W4301168978 hasRelatedWork W1967224234 @default.
• W4301168978 hasRelatedWork W1972385609 @default.
• W4301168978 hasRelatedWork W2035726701 @default.
• W4301168978 hasRelatedWork W2050696991 @default.
• W4301168978 hasRelatedWork W2066925236 @default.
• W4301168978 hasRelatedWork W2099745366 @default.
• W4301168978 hasRelatedWork W2118202851 @default.
• W4301168978 hasRelatedWork W2462024793 @default.
• W4301168978 hasRelatedWork W4281771016 @default.
• W4301168978 hasVolume "607" @default.
• W4301168978 isParatext "false" @default.

• next