A dataset provided by the European Space Agency

Name OHFIR
Title DETECTION OF OH FIR LASERS IN STAR-FORMING REGIONS LASER ACTION IN OH AT 134.83 AND 135.95 MICRONS
URL

http://nida.esac.esa.int/nida-sl-tap/data?RETRIEVAL_TYPE=OBSERVATION&PRODUCT_LEVEL=ALL&obsno=617020020
DOI https://doi.org/10.5270/esa-inik1y6
Author GRAY, MALCOLM D
Description theoretical calculations of oh energy level populations under conditions r^ant to star-forming regions often yield population inversions in transitions in the fir in addition to the well known lambda doublet inversions which lead to observed oh maser action. some oh fir transitions have been observed but none have been observed to mase. the transitions which may be inverted according to theory, however, have not been studied. lines which may be inverted are at 115.14, 134.83 and 135.95 microns and are all cross-stack (f2->f1) transitions in oh. only the two longer wavelength lines are likely to be observable with iso. the main goal of the proposal is to detect for the first time fir laser emission from space with the lws/fabry-perot system in aot lws04 mode. iso is the only instrument presently available which is capable of detecting these lines.
Instrument LWS01 , LWS04
Temporal Coverage 1996-10-08T22:01:02Z/1997-07-25T09:18:38Z
Version 1.0
Mission Description The Infrared Space Observatory (ISO) was the worlds first true orbiting infrared observatory. Equipped with four highly-sophisticated and versatile scientific instruments, it was launched by Ariane in November 1995 and provided astronomers world-wide with a facility of unprecedented sensitivity and capabilities for a detailed exploration of the Universe at infrared wavelengths.
Creator Contact https://support.cosmos.esa.int/iso/
Date Published 1998-09-01T00:00:00Z
Last Update 2026-03-02
Keywords Infrared Space Observatory data, ESA ISO mission dataset, ISO infrared observations, mid-infrared astronomy data, far-infrared spectroscopy dataset, ISOCAM imaging data, ISOPHOT photometry data, SWS short wavelength spectrometer data, LWS long wavelength spectrometer data, infrared spectral line observations, infrared imaging survey data, dust emission infrared observations, star formation infrared dataset, interstellar medium spectroscopy data, polycyclic aromatic hydrocarbons PAH features data, active galactic nuclei infrared observations, circumstellar envelope infrared data, planetary nebula infrared spectroscopy, extragalactic infrared survey data, calibrated ISO data products, FITS files infrared astronomy, spectral energy distribution infrared data, continuum photometry dataset, infrared spectral cubes, flux-calibrated infrared maps, ESA ISO Data Archive, legacy infrared space mission dataset
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, GRAY et al., 1998, 'DETECTION OF OH FIR LASERS IN STAR-FORMING REGIONS LASER ACTION IN OH AT 134.83 AND 135.95 MICRONS', 1.0, European Space Agency, https://doi.org/10.5270/esa-inik1y6