A dataset provided by the European Space Agency

Name OT2_jsokolos_1
Title The Origin and Nature of the Emission Nebulae around Symbiotic Stars
URL

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DOI 10.5270/esa-jp1qxu2
Author sokoloski, j.
Description There is much controversy concerning the ionized nebula that produces the radio through FIR emission from symbiotic stars. The goal of the proposed Herschel observations is to test two popular models for this emission; whether it is produced by a wind from the red giant that is photoionized by Lyman continuum photons from the hot WD (STB) or it comes from plasma that is shock heated as the winds from the two stars collide by constraining the submm SED and measuring the free-free turnover frequency of the ionised component. These two models predict distinctly different shapes for the submm portion of the SED and different dependence of the turnover frequency on binary separation. Thus, submm photometry of a diverse sample of symbiotic stars with know binary parameters that only Herschel can perform is an ideal way to quantitatively test and discriminate between these models (as well as motivate new ones). In terms of astrophysical significance, determining the origin of the radio-through-FIR emission from symbiotic stars has implications for the nature and geometry of mass transfer in wide binaries, mass loss from accreting compact objects, the shaping of asymmetric nebulae around binary stars (including binary planetary nebulae), and the likelihood that symbiotic stars can explode as type Ia supernovae.
Publication
Instrument PACS_PacsPhoto_largeScan, SPIRE_SpirePhoto_small
Temporal Coverage 2012-10-31T01:47:40Z/2013-03-25T09:18:10Z
Version SPG v14.2.0
Mission Description Herschel was launched on 14 May 2009! It is the fourth 'cornerstone' mission in the ESA science programme. With a 3.5 m Cassegrain telescope it is the largest space telescope ever launched. It is performing photometry and spectroscopy in approximately the 55-671 ┬Ám range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2013-09-25T09:08:27Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-09-25T09:08:27Z, OT2_jsokolos_1, SPG v14.2.0. https://doi.org/10.5270/esa-jp1qxu2