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

Abstract

We present a revised distance to the Cygnus Loop supernova remnant of $725\pm 15$ 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.

3 pages, 1 table

References in corpus (5)

• Estimating distances from parallaxes. V: Geometric and photogeometric distances to 1.47 billion stars in Gaia Early Data Release 3
• Shock Speed, Cosmic Ray Pressure, and Gas Temperature in the Cygnus Loop
• Carbon, Helium and Proton Kinetic Temperatures in a Cygnus Loop Shock Wave
• Turbulence and Particle Acceleration in Radiative Shock Waves in the Cygnus Loop II: Development of Postshock Turbulence
• A Distance Estimate to the Cygnus Loop Based on the Distances to Two Stars Located Within the Remnant

Cited by in corpus (3)

• Peering into the Milky Way by FAST: IV. Identification of two new Galactic supernova remnants G203.1+6.6 and G206.7+5.9
• New continuum and polarization observations of the Cygnus Loop with FAST II. Images and analyses
• Proper motion of Cygnus loop shock filaments