A dataset provided by the European Space Agency

Name SGR_AGB
Title CARBON STARS AND WC-PLANETARY NEBULAE IN THE SAGITTARIUS DWARF SPHEROIDAL GALAXY
URL

http://nida.esac.esa.int/nida-sl-tap/data?RETRIEVAL_TYPE=OBSERVATION&PRODUCT_LEVEL=ALL&obsno=486007450
DOI https://doi.org/10.5270/esa-4plkil5
Author ZIJLSTRA, ALBERT A
Description we propose to study circumstellar envelopes in the newly discovered dwarf spheroidal sgr. it is the nearest extra-galactic system (half the distance to the lmc) and is the only old, metal-poor stellar population where we can study in detail the mass-loss process. the relatively simple star-formation and chemical history will allow us to measure the mass-loss efficiency for a narrow range in metallicity and stellar age, and will provide a crucial comparison sample compared to the younger, more metal-rich magellanic clouds. we will carry out mid-infrared photometry to detect circumstellar envelopes and measure the mass-loss rate. we will also observe the two planetary nebulae with sws, to measure accurate abundances. both planetary nebulae in sgr have wc-like central stars, indicating an unexpected difference in stellar population with the galactic halo.
Instrument CAM01 , SWS02
Temporal Coverage 1997-03-16T12:14:16Z/1997-03-27T09:21:53Z
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 1999-07-07T00:00:00Z
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, ZIJLSTRA et al., 1999, 'CARBON STARS AND [WC]-PLANETARY NEBULAE IN THE SAGITTARIUS DWARF SPHEROIDAL GALAXY', 1.0, European Space Agency, https://doi.org/10.5270/esa-4plkil5