2025RNAAS...9...36S

Query : 2025RNAAS...9...36S

2025RNAAS...9...36S - Research Notes of the AAS, 9, 36 (2025/February-0)

Optical Polarimetry of WR 1 Consistent with a CIR and 17 days Rotation.

STEENKEN N., IGNACE R., ST-LOUIS N. and LENOIR-CRAIG G.

Abstract (from CDS):

New visible-band linear polarimetry of the star WR 1 (HD 4004) is presented. This early N-rich Wolf-Rayet star has previously been reported as harboring a Corotating Interaction Region structure threading its wind, implying a stellar rotation period of 16.9 days. Polarization measurements in the Q - U diagram obtained over a span of more than 5 weeks with sampling every few days are revealing (a) variability consistent with the previously reported period and (b) a loop morphology consistent with theoretical models.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Wolf-Rayet stars - Stellar rotation - Polarimetry

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 TYC 4024-1741-1 * 00 42 21.5685425208 +64 42 21.930625188   10.801 10.239     ~ 2 0
2 HD 4004 WR* 00 43 28.3971737448 +64 45 35.384652468 10.28 10.718 10.138     WN4-s 205 0

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