2025RNAAS...9..254G

Query : 2025RNAAS...9..254G

2025RNAAS...9..254G - Research Notes of the AAS, 9, 254 (2025/September-0)

A Long-term Quasiperiodic Disk Around the Be Star QR Vul.

GARCIA FLORES S., RICHARDSON N.D. and LABADIE-BARTZ J.

Abstract (from CDS):

Be stars are non-supergiant B stars that rotate rapidly and show evidence of an equatorial decretion disk. The disks are variable in time and strength, but are usually unpredictable. We report on spectra from the Be Star Spectra archive that indicate that the Be star QR Vul has a quasi-periodic property in its disk strength, where the largest disk phases seem to be modulated on a ∼4.36 yr cycle. We speculate on two possible causes.

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

Journal keyword(s): Be stars - Early-type emission stars - Circumstellar disks - Variable stars

Simbad objects: 3

goto Full paper

goto View the references in ADS

Number of rows : 3
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 HD 6226 Be* 01 03 53.3582813400 +47 38 32.261195544 6.18 6.79 6.82     ~ 57 0
2 * del Sco SB* 16 00 20.00528 -22 37 18.1431 1.30 2.20 2.32 2.36 2.49 B0.3IV 776 0
3 HD 192685 ** 20 15 15.8960557510 +25 35 31.062881681   4.58 4.75     B3V 149 0

To bookmark this query, right click on this link: simbad:objects in 2025RNAAS...9..254G and select 'bookmark this link' or equivalent in the popup menu