2005A&A...429..317A


C.D.S. - SIMBAD4 rel 1.7 - 2020.01.22CET12:57:58

2005A&A...429..317A - Astronomy and Astrophysics, volume 429, 317-322 (2005/1-1)

uvby FCAPT photometry of the mCP stars HR 2258, MW Vul, and HR 9017 and the HgMn star 46 rho Aqr.

ADELMAN S.J. and YOUNG K.J.

Abstract (from CDS):

Differential Stroemgren uvby observations from the Four College Automated Photoelectric Telescope are presented for the magnetic CP (mCP) stars HR 2258, MW Vul, and HR 9017 and the HgMn star 46 ρ Aqr. A period for HR 2258 of 15.0313 days satisfactorily phases photometry over a 30 year time span. Recent observations of MW Vul agree in phasing with those taken 13 years ago, but the amplitudes in u, v, b, and y are greater and the light curves have changed shape especially in the falling branch. This type of behavior has not been seen before in any slowly rotating mCP star. It is a signature of the precession of the rotational axis which brings different parts of the surface into view. A period of 0.92738 days is found for HR 9017 which is similar to that derived by Winzer. Changes in the v-c values between observations taken in the Spring and Fall of 2003 for 46 ρ Aqr may be due to its companion.

Abstract Copyright:

Journal keyword(s): stars: chemically peculiar - stars: individual: HR 2258 - stars: individual: MW Vul - stars: individual: 46 ρ Aqr - stars: individual: HR 9017

VizieR on-line data: <Available at CDS (J/A+A/429/317): table2.dat table3.dat table4.dat table6.dat tablea.dat>

Simbad objects: 12

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Number of rows : 12

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 V* V567 Cas a2* 00 05 06.1509945857 +61 18 50.292527535   5.710 5.791     B6III 53 0
2 * 64 Ori SB* 06 03 27.3645153370 +19 41 26.033243498   5.021 5.130     B8V 113 0
3 * f02 Ori * 06 15 25.1313678964 +16 08 35.405049653   5.211 5.327     B7V 64 0
4 V* V1155 Ori a2* 06 19 01.8404056572 +17 19 30.987087581 5.95 6.25 6.32     B9IIIpSi(Cr) 129 0
5 * 18 Vul SB* 20 10 33.5370677802 +26 54 15.003257727   5.586 5.507     A3III 77 0
6 * 21 Vul dS* 20 14 14.5296180620 +28 41 41.335467713   5.365 5.189     A7IVn 87 0
7 V* MW Vul a2* 20 16 27.1968444581 +27 46 33.854994340   6.585 6.645     A0p 111 0
8 * rho Aqr SB* 22 20 11.9183032023 -07 49 15.974185849 4.94 5.286 5.339     B8III 75 0
9 * 51 Aqr ** 22 24 06.8843328 -04 50 13.269259   5.752 5.779     B9.5V 93 1
10 * sig Aqr * 22 30 38.8228563358 -10 40 40.703057658 4.59 4.73 4.81 4.81 4.85 A0IVs 118 0
11 V* V650 Cas a2* 23 48 39.05246 +64 52 35.2292   6.527 6.476     A0VpSrSiCrHg 79 1
12 HD 223624 * 23 50 59.2353297873 +63 59 05.482592371   6.852 6.800     A0 10 0

    Equat.    Gal    SGal    Ecl

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2020.01.22-12:57:58

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