A dataset provided by the European Space Agency

Name RN2
Title REFLECTION NEBULAE PART 2 PHOTOMETRY AND FULL RANGE SPECTROSCOPY PART 2
URL

http://nida.esac.esa.int/nida-sl-tap/data?RETRIEVAL_TYPE=OBSERVATION&PRODUCT_LEVEL=ALL&obsno=203071470
DOI https://doi.org/10.5270/esa-3ak7gt0
Author LEGER, ALAIN
Description reflection nebulae (rns) are objects of special interest because they provide an opportunity to explore the interaction of a single star with a region of high density ism.they are bright enough to permit a detailed spectroscopy of the emission by is dust and gas . in addition, the characteristics of the stellar radiation incident can vary from object to object (o/b to m stars), allowing tests of specific models for the excitation of different is species. our proposal will use iso to study a sample of rns illuminated with widely varying temperatures. we propose to obtain: - complete 2.5-200 um spectra for a subset of rns with varying stellar temperature. this is the heart of the proposal. - 3-200 um broad band energy distributions of the emission for all rns. - measurement of the gas heating efficiency for a subset of rns, by varying(i) the irradiation spectra (o/b to m stars) and (ii) the flux intensity (different distances from the star in a given rn). specifically, we want to: - confirm or deny the pah hypothesis;if confirmed, make a more specific identification of the molecular species and correlate their ionization and dehydrogenation states with the stellar irradiation. - search for c60 molecules or ions. - look for spectral features that could identify the particles emitting by temperature fluctuations in the 20-100 um range, because, presently, we know nothing on their chemical nature. - determine whether there is a cut-off in the exciting star temperature underwhich the gas heating efficiency drops, as expected if the heating mechanism is photoelectric effect.
Instrument PHT17 , PHT18 , PHT19
Temporal Coverage 1996-06-07T13:21:38Z/1996-06-07T13:42:38Z
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 1999-05-29T00:00:00Z
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, LEGER et al., 1999, 'REFLECTION NEBULAE PART 2 PHOTOMETRY AND FULL RANGE SPECTROSCOPY PART 2', 1.0, European Space Agency, https://doi.org/10.5270/esa-3ak7gt0