2006A&A...449..335R


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.06CEST02:21:37

2006A&A...449..335R - Astronomy and Astrophysics, volume 449, 335-343 (2006/4-1)

A multisite photometric campaign on the pre-main-sequence δ Scuti pulsator IP Persei.

RIPEPI V., BERNABEI S., MARCONI M., PALLA F., ARELLANO FERRO A., BONANNO A., FERRARA P., FRASCA A., JIANG X.J., KIM S.-L., MARINONI S., MIGNEMI G., MONTEIRO M.J.P.F.G., OSWALT T.D., REEGEN P., JANULIS R., RODRIGUEZ E., ROLLAND A., RUOPPO A., TERRANEGRA L. and ZWINTZ K.

Abstract (from CDS):

We present the results of a photometric multisite campaign on the δ Scuti Pre-Main-Sequence star IP Per. Nine telescopes have been involved in the observations, with a total of about 190h of observations over 38 nights. Present data confirms the multiperiodic nature of this star and leads to the identification of at least nine pulsational frequencies. Comparison with the predictions of linear non-adiabatic radial pulsation models allowed us to identify only five of the nine observed frequencies, and to constrain the position of IP Per in the HR diagram. The latter is in good agreement with the empirical determination of the stellar parameters obtained by Miroshnichenko et al. (2001A&A...377..854M). An initial interpretation of the observed frequencies using the Aarhus non-radial pulsation code suggests that three frequencies could be associated with non-radial (l=2) modes. Finally, we present new evolutionary and pulsation models at lower metallicity (Z=0.008) to take into account the possibility that IP Per is metal deficient, as indicated by Miroshnichenko et al. (2001A&A...377..854M).

Abstract Copyright:

Journal keyword(s): stars: variables: δ Scuti - stars: oscillations - stars: pre-main sequence - stars: fundamental parameters - stars: individual: IP Persei

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 - 2020
#notes
1 HD 21913 * 03 33 12.1817093678 +33 21 31.969302264   8.07 7.63     F2 16 0
2 HD 22418 PM* 03 37 27.9288525 +31 07 12.813726   7.38 6.957     F5 37 0
3 HD 278937 Em* 03 40 46.9603307360 +32 31 53.715906654   10.66 10.40     A7III:kA2.5mA3e(r) 75 0
4 HD 278941 * 03 41 01.6665919980 +32 07 06.135795310   9.89 9.53     A3 7 0
5 TYC 2359-802-1 * 03 41 15.3583619730 +32 23 49.784398472   11.88 11.22     ~ 2 0
6 Ass Per OB 2 As* 03 42.2 +33 26           ~ 306 0
7 NGC 2264 OpC 06 40 58 +09 53.7     3.9     ~ 1592 1
8 V* DX Cha Ae* 12 00 05.0870448691 -78 11 34.559255151   6.81 6.60     A0_sh 306 0
9 V* V856 Sco Ae* 16 08 34.2868591379 -39 06 18.326059778 7.66 7.41 7.05 6.92   A7IIIne_sh 351 0

    Equat.    Gal    SGal    Ecl

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2020.08.06-02:21:37

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