1998A&A...337..198H

Query : 1998A&A...337..198H

1998A&A...337..198H - Astronomy and Astrophysics, volume 337198-206 (1998/9-1)

New multi-site observations of the δ Scuti stars BS and BT Cancri. Results of the STEPHI VII campaign on the Praesepe cluster.

HERNANDEZ M.M., MICHEL E., BELMONTE J.A., JIANG S.Y., ALVAREZ M., CHEVRETON M., PAPARO M., KJELDSEN H., BAUDUIN D., FROMAGE J., GOUPIL M.J., LI Z.P., LIU Y.Y., MANGENEY A., MASSACRIER G., RINGOT O., ROCA CORTES T., SERVAN B. and VIDAL I.

Abstract (from CDS):

New observations of BS and BT Cnc were performed during the STEPHI VII campaign in 1996 February. An overall run of 115 hours of data was collected. Different methods have been used to analyse the time series, bringing the detection of 2 frequencies for BT Cnc and 3 frequencies for BS Cnc above the 99% confidence level. A comparison with the literature reveals that the dominant mode of BT Cnc (∼9.8c/d) has kept excited over tens of years, while the secondary modes have not been the same all the time. However, during the very last years the two frequencies detected by us have been the only ones noticeably excited in the spectrum.

Abstract Copyright: ∼

Journal keyword(s): stars: oscillations - δ Scu - open clusters and associations: individual: Praesepe - stars: individual: BS Cnc, BT Cnc

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 73449 V* 08 39 06.1081366296 +19 40 36.533338500   7.70 7.45     A9Vn 84 0
2 V* BS Cnc dS* 08 39 09.0975243288 +19 35 32.619758244   8.78 8.59     A9V 130 0
3 * 38 Cnc dS* 08 39 42.6543233112 +19 46 42.436048548   6.88 6.66     F0IV 151 0
4 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0

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