Simultaneous photometric and CARMENES spectroscopic monitoring of fast-rotating M dwarf GJ 3270 - Discovery of a post-flare corotating feature

E. N. Johnson; S. Czesla; B. Fuhrmeister; P. Schöfer; Y. Shan; C. Cardona Guillén; A. Reiners; S. V. Jeffers; S. Lalitha; R. Luque; E. Rodríguez; V. J. S. Béjar; J. A. Caballero; L. Tal-Or; M. Zechmeister; I. Ribas; P. J. Amado; A. Quirrenbach; M. Cortés-Contreras; S. Dreizler; A. Fukui; M. J. López-González; A. P. Hatzes; Th. Henning; A. Kaminski; M. Kürster; M. Lafarga; D. Montes; J. C. Morales; F. Murgas; N. Narita; E. Pallé; H. Parviainen; S. Pedraz; D. Pollacco; A. Sota

doi:10.1051/0004-6361/202040159

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Volume 651 (July 2021)

A&A, 651 (2021) A105

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Table 1

Start time, duration, and exposure time at time of flare of photometric observations. SNO: S, MuSCAT2: M.

Filter	Start	Duration	Exp. time	Total Obs#
	JD	[h]	[s]
S B	2 458 468.304	5.0	30 ^(a)	379
S V	2 458 468.298	8.6	30 ^(b)	669
M r	2 458 468.398	5.59	22	941
M i	2 458 468.399	5.59	12	1755
M z	2 458 468.399	5.59	6	3093

Notes. ^(a) 60 s during the first 3 h;^(b)100 s during the first and 60 s for the following 2 h.

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