2009A&A...497..481B


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.14CEST00:31:15

2009A&A...497..481B - Astronomy and Astrophysics, volume 497, 481-485 (2009/4-2)

Five colour photometry of the RRd star V372 Serpentis.

BENKO J.M. and BARCZA S.

Abstract (from CDS):

The first U-band and new BV(RI)C photometry of the RRd star V372 Ser is presented to determine some parameters of the star. In April, May 2007, 2812 U,B,V,RC,IC frames were obtained at Konkoly and Teide Observatories and 1508 V observations were collected from the literature. Fourier fitted light curves were derived in all bands. The non-linearly coupled frequencies f0=(2.121840±.000001) cycles/day, f1=(2.851188±.000001) c/d, i.e. periods P0=0.4712891±.0000002days, P1=0.3507310±.0000001d, P1/P0=0.7441950, amplitudes A0(V)=0.15399mag, A1(V)=0.20591mag, and phases have been found. A1/A0=1.319±.008 has been found from averaging the amplitude ratio in the different bands i.e. the first overtone is the dominant pulsation mode. From the V observations, upper limits are given for secular change of the Fourier parameters. The period ratio and period put V372 Ser among the RRd stars of the globular clusters M3 and IC 4499; mass, luminosity, and metallicity estimates are given.

Abstract Copyright:

Journal keyword(s): stars: variables: RR Lyr - stars: fundamental parameters - stars: individual: V372 Serpentis

Simbad objects: 15

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Number of rows : 15

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 815 0
2 V* V500 Hya RR* 08 47 46.9374130176 -03 39 00.285211558   11.13 10.75     ~ 11 0
3 V* AQ Leo RR* 11 23 55.2750743728 +10 18 59.080007685           A1 69 0
4 V* SU Dra RR* 11 37 56.6071560912 +67 19 47.060820644 9.52 9.37 9.27     F2-F7 234 0
5 V* CU Com RR* 12 24 46.6093358310 +22 24 28.243102858     13.26     ~ 26 0
6 M 68 GlC 12 39 27.98 -26 44 38.6   10.26 7.96     ~ 876 0
7 V* BS Com RR* 13 34 39.2101577233 +24 16 38.025273010   12.64 12.69     kA2.5hA8.5 20 0
8 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2266 0
9 IC 4499 GlC 15 00 18.57 -82 12 49.6     8.56     ~ 310 0
10 V* V372 Ser RR* 15 17 34.9961858773 -01 05 16.745085905   11.53 10.90     ~ 16 0
11 HD 135894 * 15 17 40.4271476020 -00 59 05.560198802   8.20 7.28     G8III 10 0
12 GSC 05002-00525 * 15 17 40.9136182218 -01 03 24.136324513 14.339 14.183 13.528   12.764 ~ 2 0
13 GSC 05002-00566 * 15 17 54.1499693544 -01 02 20.397038769 13.533 13.481 12.936   12.268 ~ 3 0
14 NGC 6426 GlC 17 44 54.71 +03 10 12.5           ~ 188 0
15 M 15 GlC 21 29 58.33 +12 10 01.2   3       ~ 2907 0

    Equat.    Gal    SGal    Ecl

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2020.07.14-00:31:15

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