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| Query : 1998A&A...334..931Z |
1998A&A...334..931Z - Astronomy and Astrophysics, volume 334, 931-934 (1998/6-3)
New features in the EV Lacertae flares discovered by fast high precision UBVRI photometry.
ZHILYAEV B.E., VERLYUK I.A., ROMANYUK Y.O., SVYATOGOROV O.A., KONSTANTINOVA-ANTOVA R.K., ANTOV A.P., BACHEV R.S., ALEKSEEV I.Y., CHALENKO V.E. and SHAKHOVSKOY D.N.
Abstract (from CDS):
The flares fine structure lies often below the detection limit for photometry data. UBVRI high-speed observations combined with synchronous monitoring at two telescopes situated far from each other allowed us to detect new small-amplitude features in the flare activity of EV Lac. Digital filtering of the light curves with a Gaussian window was used. We found that some flare events are composed of a flare and an intensity drop having a crater-shaped structure centered at the flare peak. Fading amplitudes extend from 0.1 to 0.01mag.
Abstract Copyright: ∼
Journal keyword(s): stars: individual: EV Lac - stars: flare - stars: variables: others
Simbad objects: 3
| Number of rows : 3 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | V* YZ CMi | Er* | 07 44 40.1723046464 | +03 33 08.875227574 | 13.761 | 12.831 | 11.225 | 9.958 | 8.263 | M4.0Ve | 885 | 0 |
| 2 | HD 152751 | SB* | 16 55 28.7575690 | -08 20 10.787849 | 11.647 | 10.593 | 9.023 | 7.937 | 6.565 | M3.5Ve | 523 | 1 |
| 3 | V* EV Lac | Er* | 22 46 49.7312610268 | +44 20 02.374381562 | 11.85 | 10.26 | 9.89 | M4.0Ve | 902 | 2 |
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