2020MNRAS.494.4848D

Query : 2020MNRAS.494.4848D

2020MNRAS.494.4848D - Mon. Not. R. Astron. Soc., 494, 4848-4853 (2020/June-1)

Observing flare stars below 100 MHz with the LWA.

DAVIS I., TAYLOR G. and DOWELL J.

Abstract (from CDS):

We observed the flare stars AD Leonis, Wolf 424, EQ Pegasi, EV Lacertae, and UV Ceti for nearly 135 h. These stars were observed between 63 and 83 MHz using the interferometry mode of the Long Wavelength Array. Given that emission from flare stars is typically circularly polarized, we used the condition that any significant detection present in Stokes I must also be present in Stokes V at the same time in order for us to consider it a possible flare. Following this, we made one marginal flare detection for the star EQ Pegasi. This flare had a flux density of 5.91 Jy in Stokes I and 5.13 Jy in Stokes V, corresponding to a brightness temperature 1.75 x 1016(r/r*)–2 K.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: flare

Simbad objects: 19

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Number of rows : 19
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 3C 41.0 rG 01 26 44.388 +33 13 11.22   21       ~ 172 1
2 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
3 G 272-61B PM* 01 39 01.6377185550 -17 57 01.001240728           M6V 892 0
4 V* AD Leo PM* 10 19 36.2808181226 +19 52 12.010446571   10.82 9.52 9.19   dM3 1469 1
5 3C 241 rG 10 21 54.533 +21 59 30.50   23.5       ~ 171 1
6 4C 09.41 QSO 12 20 27.9856609152 +09 28 27.360912864   19.13 18     ~ 48 1
7 Wolf 424 ** 12 33 17.361480 +09 01 15.79224 15.398 14.313 12.467 10.937 8.988 M5.5V 329 0
8 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
9 3C 295 Sy1 14 11 20.6 +52 12 09   22.34 20.80 18.54   ~ 1021 4
10 4C 55.28 Rad 14 11 28.015 +55 42 29.22           ~ 3 1
11 4C 48.38 Rad 14 16 44.636 +48 02 50.35   19.0       ~ 18 1
12 3C 415.2 rG 20 32 46.118 +53 45 50.15           ~ 31 1
13 3C 418.0 Bla 20 38 37.03472279 +51 19 12.6624988   21.30 21.00 18.9   ~ 333 1
14 V* EV Lac PM* 22 46 49.7312610268 +44 20 02.374381562   11.85 10.26 9.89   M4.0Ve 993 2
15 2MASS J23134816+4712149 Sy1 23 13 48.1687273848 +47 12 14.957305200   17.5 18.0     ~ 52 1
16 BD+19 5116A PM* 23 31 52.1738511880 +19 56 14.130398245   11.81 10.35 9.946   M3.5Ve 122 0
17 BD+19 5116 ** 23 31 52.17898 +19 56 14.1505 12.737 11.749 10.165 8.982 7.446 M3.5V 469 0
18 BD+19 5116B PM* 23 31 52.5753377942 +19 56 14.005026315   14.8   12.165   M4.0Ve 222 0
19 4C 17.94 Rad 23 31 59.013 +17 28 55.32           ~ 10 2

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