Appendix 1 : Number of radio bursts detected from the nine studied dMe flare stars

The tables report:

- Column 1: "N(h)": total number of observing hours near 21 cm,
- Column 2: "n": total number of detected bursts,
- Column 3: "": duration of each burst,
- Column 4: " (mJy)": peak flux density (shortest reported value, either for a 1-s integration time or with a shorter time resolution),
- Column 5: "Circ. Polar.": Rate of circular polarisation ("R" for right and "L" for left),
- Column 6: "Quiesc. (mJy) ": Flux density of the quiescent emission possibly detected,
- Column 7: Observing instrument,
- Column 8: Reference(s).

In each of the tables below, we firstly report the number of bursts detected with one of the three techniques mentioned in Sect. 2.1. Below the total of bursts detected according to these criteria, we also mention some bursts whose stellar origin is not perfectly established.

N (h) n Circ. Quiesc. Instrument Ref.

(mJy) Polar. (mJy)

4 1 18 var. 1.95 VLA (a) between L and R

11 1 (or 3 ?) 2 h 80 100% L several VLA (b) (c)

5 0 VLA (d)

3 (at 6 and 0 VLA (e) 20 cm)

? 1 15 min VLA (f)

521 96% R Arecibo

1 670 Effelsberg (g)

40 s 400 Jodr.Bank

3 h 15 2 40 s 940 100% R Arecibo (h)

  6 min ON-OFF 6

17.9 1 ? 150 Arecibo (i) and visible simulta- neously

1 1 20 min 130 100% L (B) (j)

20 50 s 300 (B) (k)

2 L

25 s 10 100% L

Notes:
(A) Simultaneous observations in Arecibo and in optical within a few seconds, but the authors do not believe this detection!
(B) Observation in Arecibo, but without guarantee on the stellar origin.

N (h) n Circ. Quiesc. Instrument Ref.

(mJy) Polar. (mJy)

3.75 "nume <30 min high VLA (a)

rous" (chacun)

0.5 1 8.4 1.5 VLA (b)

10 min 9 ? R

5 3 10 min 12 VLA (c) R

2 h 45 R

2.57 0 Jodrell (d) Bank

4.28 0 Effelsberg (d)

Total > 5

? 0 0.47 VLA (e)

(a) Kundu et al. (1986)
(b) Kundu et al. (1988)
(c) Bastian & Bookbinder (1987)
(d) Güdel (1991)
(e) Jackson et al. (1989).

N (h) n Circ. Quiesc. Instrument

(mJy) Polar. (mJy)

0.4 0 0.4 VLA (a)

13.6 0 (no Arecibo (b)

burst >100 mJy) and visible

mJy) simulta- neou sly 0

(a) White et al. (1989)
(b) Moffett et al. (1978).

N (h) n Circ. Quiesc. Instrument Ref.

(mJy) Polar. (mJy)

4.5 slowly 30 variable: VLA (a)

variable 35%-

emission 90% L

4 h 12 8 (one 16 VLA (b) after the others)

3 1 15 0 VLA (c)

8 (at 20 9.2 94% L 4.7 VLA (d) and 90 cm)

5 0

9 1 15 100% L 2 VLA (f) (g) (h) > 13 33.7

? 1 2 h 20 3.9 80% L VLA (i)

? 1 2 h 5 VLA (g)

2.4 1 40 s 150 Arecibo (j) and visible (C)

Note: (C) The radio peak was detected 30 s before the optical: is it reliable?

(a) Lang & Willson (1986a)
(b) Lang & Willson (1988)
(c) Willson et al. (1988)
(d) Kundu & Shevgaonkar (1988)
(e) Bastian & Bookbinder (1987)
(f) Kundu et al. (1986)
(g) Jackson et al. (1990)
(h) Kundu & White (1989)
(j) Moffett et al. (1978).

N (h) n Circ. Quiesc. Instrument Ref.

(mJy) Polar. (mJy)

1 h 13 0 0.41 VLA (a)

14 h 0 0.5-2 VLA (b) 0 h 13 m

(a) Jackson et al. (1989)
(b) Gary (1985).

N (h) n Circ. Quiesc. Instrument Ref.

(mJy) Polar. (mJy)

0.4 0 VLA (a) (<0.48 mJy)

(a) White et al. (1989).

N (h) n Circ. Quiesc. Instrument Ref.

(mJy) Polar. (mJy)

0.4 0 VLA (a) (<0.42 mJy)

a) White et al. (1989).

N (h) n Circ. Quiesc. Instrument Ref.

(mJy) Polar. (mJy)

0.4 0 VLA (a) (<0.58 mJy)

(a) White et al. (1989).