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First Millimeter Flares Detected from Epsilon Eridani with ALMA
Kiana Burton, Meredith A. MacGregor, Rachel A. Osten
We report the detection of three large millimeter flaring events from the nearby Sun-like, Eridani, found in archival ALMA 12m and ACA observations at 1.33 mm taken from 2015 J…
The Mouse that Squeaked: A small flare from Proxima Cen observed in the millimeter, optical, and soft X-ray with Chandra and ALMA
Ward S. Howard, Meredith A. MacGregor, Rachel Osten +10
We present millimeter, optical, and soft X-ray observations of a stellar flare with an energy squarely in the regime of typical X1 solar flares. The flare was observed from Proxima…
An ALMA 1.3 millimeter Search for Debris Disks around Solar-type Stars in the Pleiades
Devin Sullivan, David Wilner, Luca Matra +4
Millimeter emission from debris disks around stars of different ages provides constraints on the collisional evolution of planetesimals. We present ALMA 1.3 millimeter observations…
Multiwavelength Vertical Structure in the AU Mic Debris Disk: Characterizing the Collisional Cascade
David Vizgan, A. Meredith Hughes, Evan S. Carter +9
Debris disks are scaled-up analogs of the Kuiper Belt in which dust is generated by collisions between planetesimals. In the "collisional cascade" model of debris disks, dust lost…
ALMA Images the Eccentric HD 53143 Debris Disk
Meredith A. MacGregor, Spencer A. Hurt, Christopher C. Stark +6
We present ALMA 1.3 mm observations of the HD~53143 debris disk - the first infrared or millimeter image produced of this ~1 Gyr-old solar-analogue. Previous HST STIS coronagraphic…