# TESS Program G09164

Title: The Rotation-Pulsation Connection In Be Stars In Binary And Hierarchical Systems

PI: Da Rocha, Danilo - Laboratorio Nacional De Astrofisica

Type: MINI

Summary: Classical Be stars are rapidly rotating B-type stars surrounded by circumstellar disks and showing hydrogen emission lines. Their variability is often linked to the interaction between stellar rotation and non-radial pulsations (NRPs), which may be further affected by binarity and hierarchical interactions. This project investigates the rotation pulsation connection in Be stars in multiple systems using TESS photometry combined with ground-based spectroscopy. Time-series analysis will identify pulsation and rotational frequencies, while spectroscopic data will provide projected rotational velocities, allowing us to explore how multiplicity influences pulsations in rapidly rotating stars.


# Sector 108 targets observed (2 min: 9, 20 s: 5)
140214221,84.9123,-34.0743,2.65,G09164;20SECONDTARGET
201373582,91.7653,-34.312,5.85,G09164;20SECONDTARGET
29628522,97.1635,-32.3712,6.09,G09164;G09194
52982382,102.4602,-32.5084,3.55,G09164;20SECONDTARGET
53063082,102.5973,-31.7059,5.37,G09164;20SECONDTARGET
65903024,108.7026,-26.7726,4.05,G09164;20SECONDTARGET
354770601,107.4041,-16.0963,9.16,G09164
405216722,114.1762,-13.0638,9.03,G09164
81744320,107.0616,-23.4317,8.68,G09164

# Sector 109 targets observed (2 min: 13, 20 s: 8)
140214221,84.9123,-34.0743,2.65,G09164;20SECONDTARGET
201373582,91.7653,-34.312,5.85,G09164;20SECONDTARGET
52982382,102.4602,-32.5084,3.55,G09164;20SECONDTARGET
53063082,102.5973,-31.7059,5.37,G09164;20SECONDTARGET
354770601,107.4041,-16.0963,9.16,G09164
65903024,108.7026,-26.7726,4.05,G09164;20SECONDTARGET
81744320,107.0616,-23.4317,8.68,G09164
155573117,123.5154,-28.3239,10.62,G09164;G09150
146036695,123.3729,-35.8994,5.15,G09164;20SECONDTARGET
174008063,113.4626,-36.3383,5.53,G09164;20SECONDTARGET
174664153,114.9916,-37.5795,6.04,G09164
175523591,116.5438,-37.9336,6.0,G09164;20SECONDTARGET
415502268,131.1706,-21.4303,8.9,G09164