1996A&A...314..491W

Query : 1996A&A...314..491W

1996A&A...314..491W - Astronomy and Astrophysics, volume 314491-498 (1996/10-2)

An analysis of the Ap spectroscopic binary HD 59435.

WADE G.A., NORTH P., MATHYS G. and HUBRIG S.

Abstract (from CDS):

HD 59435 is a double-lined spectroscopic binary (SB2), with slowly rotating components of very similar luminosity. It was studied through high-resolution spectroscopy, photometry and CORAVEL observations. Orbital elements are presented. The orbital period is 1387 days. The line of sight lies close to the orbital plane, but no eclipses have been observed so far. The primary is an evolved G8 or K0 star, which has likely just descended the Red Giant Branch. The secondary is a cool Ap star close to the end of its main-sequence life. It shows lines resolved into magnetically split components, from which its mean magnetic field modulus can be diagnosed. The field varies with a remarkably large relative amplitude, over a rotation period which is at least of the order of 3 years.

Abstract Copyright: ∼

Journal keyword(s): stars: chemically peculiar - stars: individual: HD 59435 - stars: magnetic fields - stars: binaries: spectroscopic - stars: evolution

VizieR on-line data: <Available at CDS (J/A+A/314/491): table1 table2 table6 tables.tex>

Simbad objects: 32

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Number of rows : 32
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 * del Tau SB* 04 22 56.0951595936 +17 32 33.049802364 5.56 4.74 3.76 5.56   G9.5IIICN0.5 542 0
2 * tet01 Tau SB* 04 28 34.4979222951 +15 57 44.221169423 5.510 4.780 3.840 5.48   G9IIIFe-0.5 509 0
3 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
4 HD 29578 * 04 36 30.7825149216 -54 37 16.161212064   8.82 8.51     ApSrEuCr 42 0
5 HD 50169 Em* 06 51 59.2280506608 -01 38 40.392118428   9.01 8.98     ApEuSrCr 110 0
6 * E Pup SB* 07 12 15.8070021456 -40 29 55.755380940   5.38 5.31     A1/2V:+ApSrEu 112 0
7 V* V827 Mon a2* 07 29 35.4521242104 -09 15 33.316115832   8.40 7.94     A6IIIpSr 75 0
8 * 53 Cam a2* 08 01 42.4403874648 +60 19 27.806833200   6.177 6.008     A3VpSrSiCrEu 410 0
9 NGC 2539 51 * 08 10 38.9869434024 -12 44 44.707835148   12.25 11.39     ~ 23 0
10 NGC 2539 OpC 08 10 39.1 -12 49 52   7.05 6.5     ~ 164 0
11 NGC 2539 42 SB* 08 10 40.0494216024 -12 48 58.986090864   12.08 11.09     K0 20 0
12 NGC 2539 28 * 08 11 27.6666773184 -12 41 06.833186880   11.69 10.86     ~ 28 0
13 HD 73598 ** 08 39 50.7154795152 +19 32 26.919638988   7.53 6.60     G8III-IIIb 130 0
14 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
15 * 39 Cnc * 08 40 06.4182853944 +20 00 28.034963316 8.20 7.37 6.39 5.67 5.20 G8+III-IIIb 220 0
16 HD 73974 SB* 08 41 50.0792800992 +19 52 27.045440112   7.88 6.92     G8III-IIIb 121 0
17 * 25 Sex a2* 10 23 26.4782253528 -04 04 26.518221624 5.70 5.87 5.97     ApSiCr 135 0
18 HD 98088 a2* 11 16 58.1772734352 -07 08 04.869775428 6.49 6.34 6.14     ApSrCrEu 206 0
19 * 21 Com a2* 12 31 00.5605002264 +24 34 01.797245328   5.496 5.436     A2pv 295 0
20 V* AX CVn a2* 12 39 16.8606994152 +35 57 07.050433068   6.466 6.385     A0pSrCrEuKsn 181 0
21 * eps UMa a2* 12 54 01.7495922 +55 57 35.362645 1.76 1.75 1.77 1.79 1.82 A1III-IVpkB9 488 0
22 * alf02 CVn a2* 12 56 01.6655889007 +38 19 06.155170512 2.44 2.76 2.88 2.98 3.05 A0VpSiEu 707 0
23 HD 117025 PM* 13 29 07.9098687240 -64 40 32.882662236 6.23 6.20 6.07     ApSrEuCr 54 0
24 * o Vir a2* 13 34 07.9312445507 +03 39 32.288960317 4.96 4.96 4.94 4.86 4.89 ApEuCrSr 356 0
25 V* CQ UMa a2* 13 40 21.3848060304 +57 12 27.374885568   6.380 6.273     A2IVpSrCr 124 0
26 * bet CrB a2* 15 27 49.7540595700 +29 06 20.494640434 4.08 3.97 3.68 3.50 3.45 F2VpSrCrEuSi 703 0
27 * ome Oph a2* 16 32 08.2003815598 -21 27 59.052127058 4.69 4.56 4.45 4.32 4.30 ApSrEuCr 167 0
28 * 52 Her a2* 16 49 14.21821 +45 58 59.9620   4.914 4.823     A1VpSiSrCr 267 0
29 HD 164258 a2* 18 00 15.6738880464 +00 37 46.112578968 6.70 6.52 6.37     A6VpSrCr 99 0
30 NGC 6633 OpC 18 27 30.2 +06 38 21           ~ 423 0
31 BD+06 3796 * 18 28 17.6377551864 +06 46 00.033458880   9.96 8.98     G6IIIbFe-1 50 0
32 HD 170292 * 18 28 22.9728031560 +06 42 29.251388160   9.80 8.77     G6.5IIIFe-0.5CH0.5 56 0

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