2007AJ....133..518L

Query : 2007AJ....133..518L

2007AJ....133..518L - Astron. J., 133, 518-525 (2007/February-0)

A complicated pulsation δ Scuti variable in Praesepe: HD 74028.

LI Z.P.

Abstract (from CDS):

We report the pulsation characteristics of the δ Scuti star HD 74028, a low-amplitude pulsator in the Praesepe cluster. Amplitude spectra of 126 hr of observations spanning 16 nights indicate multiperiodic pulsation behavior. We identify three frequencies, f1=22.6652, f2=23.8505, and f3=20.5254 cycles/day, and find four additional candidate frequencies, f4=17.3060, f5=12.0643, f6=14.8160, and f7=17.1143 cycles/day. This complicated frequency distribution requires an explanation that includes rotational splitting.

Abstract Copyright: ∼

Journal keyword(s): Stars: Variables: δ Scuti - Galaxy: Open Clusters and Associations: Individual: Name: Praesepe - stars: individual (HD 74028) - Stars: Oscillations

Simbad objects: 14

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Number of rows : 14
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 V* CY Cnc dS* 08 38 37.8616098480 +19 59 23.094950100   8.34 8.14     F0V 104 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 V* BU Cnc dS* 08 39 44.6645719872 +19 16 30.772035552   7.84 7.65     A7Vn 128 0
5 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
6 HD 73712 SB* 08 40 20.1451748712 +19 20 56.315955804   7.04 6.78     A9V 106 0
7 V* BV Cnc dS* 08 40 32.9592741000 +19 11 39.569214768   8.98 8.72     kA6hA9mF0 100 0
8 V* BN Cnc dS* 08 40 39.2340192816 +19 13 41.848124700   8.01 7.80     A9V 120 0
9 V* BW Cnc dS* 08 40 52.4779618920 +20 15 59.472562896   8.74 8.48     F0Vn 116 0
10 V* EP Cnc dS* 08 40 56.2946955456 +19 34 49.228381848 7.090 6.950 6.780     A6Vn 131 0
11 V* HI Cnc ** 08 41 18.395592 +19 15 39.56328   9.01 8.82 8.75   A7Vn 71 0
12 V* BX Cnc dS* 08 42 06.4971812184 +19 24 40.526879436   8.17 7.97     A7V 125 0
13 BD+20 2192 * 08 42 40.7205726329 +19 32 35.455346147   10.24 9.87     F2III 59 0
14 V* XX Pyx dS* 08 58 39.0320074224 -24 35 10.589779932           A4V 84 0

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