A dataset provided by the European Space Agency

Name VARLPV
Title SPECTRAL VARIABILITY OF LONG PERIOD VARIABLES THE RELATION BETWEEN PULSATION, ATMOSPHERIC STRUCTURE AND DUST FORMATION
URL

http://nida.esac.esa.int/nida-sl-tap/data?RETRIEVAL_TYPE=OBSERVATION&PRODUCT_LEVEL=ALL&obsno=111051490
DOI https://doi.org/10.5270/esa-pf1s2co
Author HRON, JOSEF
Description variability is a characteristic feature of most agb stars. unfortunately, spectroscopic time series covering many of the r^ant molecular bands and the dust emission simultaneously do not exist. because of the different sensitivity of various observable features to different parameters and components of the atmosphere/ envelope of an agb variable (lpv) and because of the strong and time dependent interplay of pulsation, dust and molecules, such simultaneous and homogeneous data are the only way for a complete understanding of the physical processes involved. from the theoretical side, many of the tools for a quantitative interpretation of such complete spectroscopic time series are available now. the sws on board of iso covers the wavelength region where continuous dust emission starts to dominate and most of the important features in the spectra of lpvs (molecular bands of co, sio, h2o, hcn, c2h2 and c3, the solid state features of silicates and sic). while some of the mentioned bands and features can be observed from the ground, this requires different instruments and often excellent observing conditions. other bands accesible with iso are in spectral regions where the earths atmosphere is completely opaque. only iso can provide, probably for a long time, complete, homogeneous and simultaneous data of the molecular features and the dust emission in the atmospheres and envelopes of lpvs. such data will be a unique opportunity to test and improve the time dependent models. we thus propose periodic sws observations of a few selected typical objects.
Instrument SWS01
Temporal Coverage 1996-03-07T08:05:36Z/1997-08-21T21:14:19Z
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 1999-04-16T00:00:00Z
Last Update 2026-07-09
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, HRON et al., 1999, 'SPECTRAL VARIABILITY OF LONG PERIOD VARIABLES THE RELATION BETWEEN PULSATION, ATMOSPHERIC STRUCTURE AND DUST FORMATION', 1.0, European Space Agency, https://doi.org/10.5270/esa-pf1s2co
Rights Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.