The herschel cold debris disks: Confusion with the extragalactic background at 160 μm

András Gáspár; George H. Rieke

doi:10.1088/0004-637X/784/1/33

The herschel cold debris disks: Confusion with the extragalactic background at 160 μm

András Gáspár, George H. Rieke

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The Herschel "DUst around NEarby Stars" (DUNES) survey has found a number of debris disk candidates that are apparently very cold, with temperatures near 22 K. It has proven difficult to fit their spectral energy distributions with conventional models for debris disks. Given this issue, we carefully examine the alternative explanation that the detections arise from confusion with infrared cirrus and/or background galaxies that are not physically associated with the foreground stars. We find that such an explanation is consistent with all of these detections.

Original language	English (US)
Article number	33
Journal	Astrophysical Journal
Volume	784
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/784/1/33
State	Published - Mar 20 2014

Keywords

circumstellar matter
infrared: stars
planetary systems

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/0004-637X/784/1/33

Cite this

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AB - The Herschel "DUst around NEarby Stars" (DUNES) survey has found a number of debris disk candidates that are apparently very cold, with temperatures near 22 K. It has proven difficult to fit their spectral energy distributions with conventional models for debris disks. Given this issue, we carefully examine the alternative explanation that the detections arise from confusion with infrared cirrus and/or background galaxies that are not physically associated with the foreground stars. We find that such an explanation is consistent with all of these detections.

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KW - planetary systems

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The herschel cold debris disks: Confusion with the extragalactic background at 160 μm

Abstract

Keywords

ASJC Scopus subject areas

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