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arXiv · 2109.05368

An Updated Distance to the Cygnus Loop based on Gaia Early DR3

Robert A. Fesen·Kathryn E. Weil·Ignacio Cisneros·William P. Blair·John C. Raymond
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Abstract

We present a revised distance to the Cygnus Loop supernova remnant of $725\pm15$ pc based on Gaia Early Data Release 3 parallax measurements (EDR3) for several stars previously found to be located either inside or behind the supernova based on the presence of high-velocity absorption lines in their spectra. This revised distance estimate and error means the Cygnus Loop remnant now has an estimated distance uncertainty comparable to that of its $\simeq$18 pc radius.

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Robert A. Fesen, Kathryn E. Weil, Ignacio Cisneros, William P. Blair, John C. Raymond. 2021-09-11. An Updated Distance to the Cygnus Loop based on Gaia Early DR3. https://doi.org/10.1093/mnras/stab2066

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