A dataset provided by the European Space Agency

Name OT2_pghavami_1
Title Herschel imaging of SNR G292.0+1.8: Cas A.s older cousin?


DOI 10.5270/esa-5pj8qyb
Author ghavamian, p.
Description It is well-known that supernovae play a key role in creating and distributing elements throughout the universe, but less well-known is their contribution to the overall budget of dust in the ISM. Theoretical models suggest that core-collapse supernovae should produce large quantities of dust, but observational evidence for this is still debated. Even if significant quantities of dust are produced, does it survive the passage of the reverse shock to enter the ISM? Does the forward shock destroy all dust that it encounters? Near and mid-IR observations with Spitzer and AKARI have begun to answer these questions, but the long wavelength cameras of Herschel are necessary for a complete picture. We propose detailed observations of G292.0+1.8, a large Galactic supernova remnant (SNR) that has been called the "older cousin" of Cassiopeia A. One of the few known oxygen-rich remnants, G292 is a 3000 year old textbook example of a core-collapse SNR expanding into its own circumstellar medium (CSM), the wind of a red giant. It is one of the most well-studied SNRs at all wavelengths, from radio to X-rays. At 8. in diameter, it is large enough for the emission from the forward-shock CSM to be well-separated from that of the reverse-shocked ejecta, yet it is still small enough to be fully covered by Herschel in a reasonably small amount of time. We will obtain PACS and SPIRE imaging of the entire remnant. PACS observations will be sensitive to forward-shocked material, while SPIRE data will tell us whether large amounts of ejecta dust are present in the remnant. We will use the far-IR data in conjunction with X-ray and optical data to obtain a complete picture of the dynamical evolution of the remnant, and advance our understanding of the nature of dust in the universe.
Publication The Cold Dust Content of the Oxygen-rich Supernova Remnant G292.0+1.8 . Ghavamian Parviz et al. . The Astrophysical Journal, Volume 831, Issue 2, article id. 188, 8 pp. (2016). . 831 . 10.3847\/0004-637X\/831\/2\/188 . 2016ApJ...831..188G ,
Instrument PACS_PacsPhoto_largeScan, SPIRE_SpirePhoto_large
Temporal Coverage 2012-06-23T02:34:15Z/2013-01-05T23:18:57Z
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 2013-07-05T21:44:02Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-07-05T21:44:02Z, OT2_pghavami_1, SPG v14.2.0. https://doi.org/10.5270/esa-5pj8qyb