2001A&A...372L..21M


Query : 2001A&A...372L..21M

2001A&A...372L..21M - Astronomy and Astrophysics, volume 372, L21-24 (2001/6-2)

New observations of the pulsating PMS star V351 Ori.

MARCONI M., RIPEPI V., BERNABEI S., PALLA F., ALCALA J.M., COVINO E. and TERRANEGRA L.

Abstract (from CDS):

We present new precise photoelectric observations of the Pre-Main-Sequence δ Scuti star, V351 Ori. These new data show that V351 Ori pulsates in a mixture of several radial modes (at least four). The comparison between observations and detailed pulsational models, allows us to provide independent constraints on the mass and luminosity of the star. The predicted distance is 210pc, indicating that V351 Ori is much closer than the Orion star forming region. With an inferred mass of ∼1.8M and an uncertain evolutionary stage, V351 Ori represents an excellent candidate for future asteroseismological studies that will assess whether it is a young PMS star (∼6Myr) or an evolved object (∼1Gyr) leaving the main-sequence.

Abstract Copyright:

Journal keyword(s): stars: variables: δ Scuti - stars: oscillations - stars: fundamental parameters

CDS comments: Star HP 57 = CL* NGC 6823 HOAG 157

Simbad objects: 10

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Number of rows : 10
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 HD 35929 dS* 05 27 42.7907337821 -08 19 38.446457813   8.55 8.11     F2IV/V 93 0
2 V* BN Ori Ae* 05 36 29.3483164157 +06 50 02.174009216   10.04 8.80 9.59   F4e 63 0
3 HD 290826 * 05 44 00.3749985443 +00 15 33.454439126   10.76 10.35     F5 4 0
4 V* V351 Ori Ae* 05 44 18.7949420603 +00 08 40.411665342 9.44 9.22 8.87     A7V 101 0
5 V* DX Cha Ae* 12 00 05.0870448690 -78 11 34.559255151   6.81 6.60     A0_sh 313 0
6 HD 142666 TT* 15 56 40.0222941557 -22 01 40.004849949 9.41 9.37 8.82 8.31 8.01 F0V_sh 226 0
7 V* V856 Sco Ae* 16 08 34.2868591379 -39 06 18.326059778 7.66 7.41 7.05 6.92   A7IIIne_sh 360 0
8 Cl* NGC 6823 HOAG 157 V* 19 43 06.7593756724 +23 16 37.281214300     14.6     ~ 9 0
9 NGC 6823 OpC 19 43 09 +23 18.0   7.71 7.1     ~ 253 2
10 Cl* NGC 6823 BL 50 V* 19 43 09.0494581690 +23 17 49.017594678   15.09 14.5     ~ 10 0

    Equat.    Gal    SGal    Ecl

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2021.07.25-15:34:30

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