2005MNRAS.357.1255S

Query : 2005MNRAS.357.1255S

2005MNRAS.357.1255S - Mon. Not. R. Astron. Soc., 357, 1255-1266 (2005/March-2)

Speckle observations with PISCO in Merate - I. Astrometric measurements of visual binaries in 2004.

SCARDIA M., PRIEUR J.-L., SALA M., GHIGO M., KOECHLIN L., ARISTIDI E. and MAZZOLENI F.

Abstract (from CDS):

We present relative astrometric measurements of visual binaries made with the Pupil Interferometry Speckle camera and Coronagraph (PISCO) at the 1-m Zeiss telescope of Brera Astronomical Observatory, in Merate. We provide 135 new observations of 103 objects, with angular separations in the range 0.1-4.0 arcsec and with an accuracy better than ∼0.01 arcsec. Our sample is made of orbital couples as well as binaries whose motion is still uncertain. Our purpose is to improve the accuracy of the orbits and constrain the masses of the components.

This work already leads to the revision of the orbits of three systems (ADS 5447, 8035 and 8739).


Abstract Copyright: 2005 RAS

Journal keyword(s): techniques: interferometric - astrometry - binaries: close - binaries: visual

VizieR on-line data: <CDS Catalogue: I/382>

Errata: erratum vol. 362, p. 1120 (2005)

CDS comments: In Chap 4.1 (p.1261) STT 1670 is a misprint for STF 1670, STT 1781 is probably a misprint for STF 1871.

Simbad objects: 17

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Number of rows : 17
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 * lam Cas ** 00 31 46.3593467 +54 31 20.225689       6.25   B8Vn 143 0
2 * phi And Be* 01 09 30.12562 +47 14 30.4594 3.84 4.18 4.25 4.22 4.27 B5IIIe 244 0
3 HD 11803 ** 01 55 53.82941 +01 50 59.8991       7.09   F9V 145 0
4 * alf Psc a2* 02 02 02.81972 +02 45 49.5410           kA0hA7Sr+kA2hF2mF2(IV) 161 0
5 HD 13594 ** 02 14 02.45880 +47 29 03.2496       7.00   F4V 152 0
6 * 20 Per ** 02 53 42.6170816261 +38 20 14.852045941   5.742 5.343     F6V 144 0
7 HD 18484 ** 02 58 53.07176 +21 37 03.8426           A3 95 0
8 * 52 Ari ** 03 05 26.68819 +25 15 18.6257   5.43 5.47     B7Vn 86 0
9 HD 20104 ** 03 17 31.52535 +65 39 30.1099           A2V 76 0
10 * 7 Tau ** 03 34 26.62704 +24 27 51.8294   8.59 8.56 7.32   A3IVs 132 0
11 * r Tau ** 04 23 51.82553 +09 27 39.4939   5.175 5.098     A3V 130 0
12 * 32 Ori ** 05 30 47.05091 +05 56 53.2925 3.51 4.07 4.20 4.26 4.40 B5IV+B7V 205 0
13 * 26 Aur ** 05 38 38.0850966 +30 29 32.705388   5.846 5.406 6.77   A2.5V+F6III 108 0
14 * 126 Tau ** 05 41 17.7176759 +16 32 02.925299 4.1 4.709 4.836     B3IV 169 0
15 HD 49059 ** 06 47 23.45678 +18 11 36.4333           A2V 63 0
16 * alf UMa ** 11 03 43.67152 +61 45 03.7249 3.78 2.86 1.79 0.98 0.40 G9III+A7.5 448 0
17 * 78 UMa ** 13 00 43.69949 +56 21 58.8102   5.29 4.93     F2V 283 0

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