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J/A+A/327/1114 Optical flares on EV Lac in 1967-1977 (Leto+ 1997)
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Long-term photometric flares patrol (1967-1977) on EV Lac:
a clear evidence of a longitude concentrated flaring activity in 1970
Leto G., Pagano I., Buemi C.S., Rodono M.
<Astron. Astrophys. 327, 1114 (1997)>
=1997A&A...327.1114L (SIMBAD/NED BibCode)
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ADC_Keywords: Stars, flare ; Photometry, UBV
Keywords: stars: EV Lac - stars: flare ; activity ; rotation
Description:
We report on a large sample of homogeneous photoelectric data obtained
by monitoring the red dwarf flare star EV Lac. The data were collected
in 10 years (1967-77) at Catania Astrophysical Observatory on Mt.
Etna. The peak luminosity, the total energy emitted, the rise and
decay times were measured for each flare.
Objects:
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RA (2000) DE Designation(s)
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22 46 52.9 +44 20 25 EV Lac
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2 57 355 Summary of flare data
table2.tex 233 441 LaTeX version of table2
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Byte-by-byte Description of file: table2
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Bytes Format Units Label Explanations
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1- 2 I2 --- No Flare sequential number in year
4- 11 A8 "DD/MM/YY" OBSdate Observation date
13- 14 I2 h UTmaxh UT flare maximum (hours)
16- 17 I2 min UTmaxm UT flare maximum (minutes)
19 A1 --- Band [UBV] Band
21- 22 I2 cm Tel Telescope diameter
24- 25 A2 --- n_Lmax [ pl] pl : partially lost (no data following)
26- 30 F5.2 10+21W Lmax ? Luminosity at maximum
32- 37 F6.2 10+22J E ? Integrated flare energy
39- 42 I4 s Trise ? Rise-time to the highest peak
44- 47 I4 s Duration ? Duration of the light decrease to quiescence
49- 52 F4.2 mag Dm ? Flare amplitude
54- 57 F4.2 mag e_Dm ? Error on flare magnitude
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Acknowledgements: Giuseppe Leto <GLETO@alpha4.ct.astro.it>
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(End) Patricia Bauer [CDS] 03-Jun-1997