AB_DORADUS
Young Sun-like stars frequently produce superflares, generating hot coronal upflows and coronal mass ejections that shape early planetary atmospheres. However, their coronal dynamics remain poorly understood, limiting our ability to model their impact on planets. We propose a 200 ks XRISM observation of the young Sun-like star AB Doradus. We expect to detect at least five superflares with a 97% probability. Our goal is to detect Doppler blueshift components mainly from the Fe line profile above 6.7 keV, the most promising diagnostic of coronal dynamics. This will reveal the properties/origins of flare-driven outflows and test whether they align with solar physics. The results will advance models of early Sun's activity and constrain key plasma/radiation parameters for early planets.
obsid = 202053010 / Unique Observation/Sequence Number
object = AB_DORADUS / Object name
pi_name = NAMEKATA KOSUKE / Proposal Principal Investigator Name
ra = 82.1876461053297 / Right Ascension (Pointing Position) (deg)
dec = -65.4470416429598 / Declination (Pointing Position) (deg)
roll_angle = 200.095329852843 / Roll Angle (deg)
start_time = 2025-12-31T19:43:04 / Start Time of the Observation
stop_time = 2026-01-05T23:13:04 / Stop Time of the Observation
exposure = 351366.45681 / Effective Total Observation Exposure (s)
public_date= 2027-01-13 / Public Date