2004A&A...417..701F

Query : 2004A&A...417..701F

2004A&A...417..701F - Astronomy and Astrophysics, volume 417701-713 (2004/4-2)

Fe XIII coronal line emission in cool M dwarfs.

FUHRMEISTER B., SCHMITT J.H.M.M. and WICHMANN R.

Abstract (from CDS):

We report on a search for the FeXIII forbidden coronal line at 3388.1Å in a sample of 15 M-type dwarf stars covering the whole spectral class as well as different levels of activity. A clear detection was achieved for LHS 2076 during a major flare and for CN Leo, where the line had been discovered before. For some other stars the situation is not quite clear. For CN Leo we investigated the timing behaviour of the FeXIII line and report a high level of variability on a timescale of hours which we ascribe to microflare heating.

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Journal keyword(s): stars: activity - stars: coronae - stars: late-type

Simbad objects: 16

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Number of rows : 16
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 G 272-61B PM* 01 39 01.6377185550 -17 57 01.001240728           M6V 892 0
2 HD 42581 PM* 06 10 34.6149358167 -21 51 52.656352926 10.801 9.607 8.125 7.164 6.121 M1V 544 0
3 V* YZ CMi PM* 07 44 40.1723046464 +03 33 08.875227574 13.761 12.831 11.225 9.958 8.263 M4.0Ve 957 0
4 G 51-15 PM* 08 29 49.3527921926 +26 46 33.624143059   16.87   14.736   M6.5Ve 326 0
5 V* AZ Cnc PM* 08 40 29.6791626163 +18 24 08.726250637   19.2 17.59 16.6 13.45 M6.0V 97 0
6 G 9-38 ** 08 58 15.061776 +19 45 46.96020   15.58   13.40   M7V+M7V 113 0
7 G 9-38A PM* 08 58 15.0749311179 +19 45 48.258121374     13.93     M8Ve 99 0
8 G 41-14 SB* 08 58 56.320800 +08 28 26.06808   12.62 10.98 10.56   M3.5V 112 0
9 V* AD Leo PM* 10 19 36.2808181226 +19 52 12.010446571   10.82 9.52 9.19   dM3 1469 1
10 LP 731-58 PM* 10 48 12.6142508200 -11 20 09.610693470     15.784 16.01 11.25 M6.5V 198 0
11 Wolf 359 PM* 10 56 28.9208702274 +07 00 53.003285286 16.706 15.541 13.507 11.684 9.507 dM6 775 0
12 V* GL Vir PM* 12 18 59.3997287457 +11 07 33.773236317   15.68 13.90 13.55   M4.5Ve 191 0
13 Wolf 461 PM* 13 00 33.5221795982 +05 41 07.996620384   15.12   13.041   M4.5Ve 156 0
14 NAME Proxima Centauri PM* 14 29 42.9461331854 -62 40 46.164680672 14.21 12.95 11.13 9.45 7.41 M5.5Ve 1483 0
15 HD 152751 ** 16 55 28.7575690 -08 20 10.787849 11.647 10.593 9.023 7.937 6.565 M3.5Ve 547 1
16 V* AT Mic Er* 20 41 51.15925 -32 26 06.8283 12.753 11.909 10.343 9.098 7.383 M4.5Ve+M4.5Ve 371 0

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