2002A&A...383..197L


Query : 2002A&A...383..197L

2002A&A...383..197L - Astronomy and Astrophysics, volume 383, 197-201 (2002/2-3)

Time series analysis of V511 Lyrae photometry.

LYYTINEN J., JOHANSSON P., JETSU L., ESKO E., HACKMAN T., HALL D.S., HENRY G.W., KONTINEN S., KOENOENEN P., MAISALA S., PALVIAINEN A. and RYYNAENEN K.

Abstract (from CDS):

Our time series analysis of sixteen BV light curves of the chromospherically active binary V511 Lyr confirmed the 2.7d rotation period uniquely. The seasonal periodicity changes of 3.8% indicated the presence of detectable surface differential rotation. The significant 2.67455d periodicity in the light curve minimum epochs suggested that the strongest starspot formation in V511 Lyr was concentrated on one stable active longitude.

Abstract Copyright:

Journal keyword(s): stars: individual: V511 Lyr (HDE 337518) - stars: variable: general - stars: activity - techniques: photometric

VizieR on-line data: <Available at CDS (J/A+A/383/197): table2.dat>

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* FK Com PM* 13 30 46.7993742986 +24 13 57.786184235   9.04 8.245   7.204 G4III 356 1
2 V* V815 Her RS* 18 08 16.0466708534 +29 41 28.298657106   8.40 7.70     G5 134 0
3 V* BY Dra BY* 18 33 55.7719224141 +51 43 08.903033617 10.22 9.23   8.733   K4Ve+K7.5Ve 599 0
4 V* V511 Lyr RS* 19 06 21.3086987511 +27 42 47.821948225       8.4   K0 29 0
5 HD 337653 * 19 07 37.0453901738 +27 56 47.188461896   9.36 8.78     F8 9 0
6 HD 179422 * 19 11 30.9830596168 +26 44 09.133009156   6.758 6.336     F5V 48 0
7 V* V473 Lyr cC* 19 15 59.4894683081 +27 55 34.683764506 7.18 6.770 6.153     F8Ib-II 208 0
8 HD 199178 Ro* 20 53 53.6522297846 +44 23 11.078229740   7.98 7.24     G5III-IV 205 1
9 HD 220140 RS* 23 19 26.6384866318 +79 00 12.671002116   8.43 7.54 7.17 6.76 G9V 131 1

    Equat.    Gal    SGal    Ecl

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2021.07.29-18:12:06

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