NGTS clusters survey – II. White-light flares from the youngest stars in Orion. Issue 1 (7th July 2020)

• Record Type: Journal Article
• Authors: Jackman, James A G; Wheatley, Peter J; Acton, Jack S; Anderson, David R; Belardi, Claudia; Burleigh, Matthew R; Casewell, Sarah L; Eigmüller, Philipp; Gill, Samuel; Gillen, Edward; Goad, Michael R; Grange, Andrew; Hodgkin, Simon T; Jenkins, James S; McCormac, James; Moyano, Maximiliano; Queloz, Didier; Raynard, Liam; Tilbrook, Rosanna H; Watson, Christopher A; West, Richard G
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 497:Issue 1(2020)
• Page Start: 809
• Page End: 817
• Publication Date: 2020-07-07
• Subjects: stars: flare -- stars: low-mass -- stars: pre-main-sequence; Astronomy -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnras/staa1971
• Languages: English
• ISSNs: 0035-8711

Abstract

ABSTRACT: We present the detection of high-energy white-light flares from pre-main-sequence stars associated with the Orion Complex, observed as part of the Next Generation Transit Survey (NGTS). With energies up to 5.2 × 10 35 erg these flares are some of the most energetic white-light flare events seen to date. We have used the NGTS observations of flaring and non-flaring stars to measure the average flare occurrence rate for 4 Myr M0–M3 stars. We have also combined our results with those from previous studies to predict average rates for flares above 1 × 10 35 erg for early M stars in nearby young associations.