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CHARM2: An updated Catalog of High Angular Resolution Measurements
We present an update of the Catalog of High Angular ResolutionMeasurements (CHARM, Richichi & Percheron \cite{CHARM}, A&A,386, 492), which includes results available until July 2004. CHARM2 is acompilation of direct measurements by high angular resolution methods,as well as indirect estimates of stellar diameters. Its main goal is toprovide a reference list of sources which can be used for calibrationand verification observations with long-baseline optical and near-IRinterferometers. Single and binary stars are included, as are complexobjects from circumstellar shells to extragalactic sources. The presentupdate provides an increase of almost a factor of two over the previousedition. Additionally, it includes several corrections and improvements,as well as a cross-check with the valuable public release observationsof the ESO Very Large Telescope Interferometer (VLTI). A total of 8231entries for 3238 unique sources are now present in CHARM2. Thisrepresents an increase of a factor of 3.4 and 2.0, respectively, overthe contents of the previous version of CHARM.The catalog is only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/431/773
| CHARM: A Catalog of High Angular Resolution Measurements
The Catalog of High Angular Resolution Measurements (CHARM) includesmost of the measurements obtained by the techniques of lunaroccultations and long-baseline interferometry at visual and infraredwavelengths, which have appeared in the literature or have otherwisebeen made public until mid-2001. A total of 2432 measurements of 1625sources are included, along with extensive auxiliary information. Inparticular, visual and infrared photometry is included for almost allthe sources. This has been partly extracted from currently availablecatalogs, and partly obtained specifically for CHARM. The main aim is toprovide a compilation of sources which could be used as calibrators orfor science verification purposes by the new generation of largeground-based facilities such as the ESO Very Large Interferometer andthe Keck Interferometer. The Catalog is available in electronic form atthe CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/386/492, and from theauthors on CD-Rom.
| New binary stars discovered by lunar occultations. IV
We report on a total of 20 sources observed in the near infrared in thecourse of routine lunar occultation programs at the TIRGO and Calar Altoobservatories. The results consist either in discoveries of newbinaries, or in re-observations of known or suspected binaries whereonly incomplete information was previously available. For the firsttime, a companion has been detected around the following 6 stars:DO 2779, SAO 162001, SAO93083, IRC -20444, SAO162521, and GCVS 980. Additionally,SAO 93746 is discovered to be a triple system, withprojected separations at the 0farcs01 level. For the following 7 stars,our observations confirm previous reports of binarity and providecomplementary information in the infrared: SAO96746-A, SAO 161202, SAO94060, AG +16 403, SAO98270, SAO 93950 and SAO94554. Finally, for the following 4 stars, a companion hadbeen previously observed or suspected, but we could not detect it forvarious reasons: SAO 96810, SAO93961, SAO 93975 and SAO93981. The projected separations in our positive results rangefrom 0farcs01 to 0farcs57 , and the brightness ratios up to Delta K=4.4mag. In addition, two visual doubles, namely SAO184176 and SAO 94002, have also beenobserved and their projected angular separations and infrared brightnessratios are reported here. This paper is the fourth in a series, bringingto 58 the total number of binary sources studied by our group by meansof lunar occultations. Based on observations collected at TIRGO(Gornergrat, Switzerland), and at Calar Alto (Spain). TIRGO is operatedby CNR--CAISMI Arcetri, Italy. Calar Alto is operated by theGerman--Spanish Astronomical Center.
| Observations of Double Stars. XVIII.
Micrometer observations of 1350 pairs in 1995-1997 are listed.
| ICCD speckle observations of binary stars. IV - Measurements during 1986-1988 from the Kitt Peak 4 M telescope
One thousand five hundred and fifty measurements of 1006 binary starsystems observed mostly during 1986 through mid-1988 by means of speckleinterferometry with the KPNO 4-m telescope are presented. Twenty-onesystems are directly resolved for the first time, including newcomponents to the cool supergiant Alpha Her A and the Pleiades shellstar Pleione. A continuing survey of The Bright Star Catalogue yieldedeight new binaries from 293 bright stars observed. Corrections tospeckle measures from the GSU/CHARA ICCD speckle camera previouslypublished are presented and discussed.
| ICCD speckle observations of binary stars. II - Measurements during 1982-1985 from the Kitt Peak 4 M telescope
This paper represents the continuation of a systematic program of binarystar speckle interferometry initiated at the 4 m telescope on Kitt Peakin late 1975. Between 1975 and 1981, the observations were obtained witha photographic speckle camera, the data from which were reduced byoptical analog methods. In mid-1982, a new speckle camera employing anintensified charge-coupled device as the detector continued the programand necessitated the development of new digital procedures for reducingand analyzing speckle data. The camera and the data-processingtechniques are described herein. This paper presents 2780 newmeasurements of 1012 binary and multiple star systems, including thefirst direct resolution of 64 systems, for the interval 1982 through1985.
| Illinois occultation summary. II - 1979
Lunar occultation records are presented for the third year of acontinuing program. Included are 17 observations of stars brighter thanseventh magnitude, 13 reappearances, four angular diameter measurements,and seven observations of stars that are either binary or may be double.The observations were made with Stromgren y filter, the u or b filter,or the FI filter described in the first paper of this series (Radick andLien, 1980). Five observations, including four of Aldebaran, were madewith two filters centered on or near H-alpha.
| Photoelectric observations of lunar occultations. XII
Occultation observations of 414 events observed between 6 July 1979 and4 September 1980 with the 0.76-m telescope of McDonald Observatory arereported. Timings and data on double stars are given. Angular diameterinformation in six cases is included. The stars concerned with their runnumbers are: SAO 161754 (5270); 94027 (Alpha Tau) (5319, 5381, 5454);159370 (Gamma Lib) (5325, 5571); 162413 (43 Sgr) (5332); 97472 (3 Cnc)(5414); and 93955 (Theta Tau) (5445).
| Micrometer observations of double stars.8.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1975ApJS...29..315H&db_key=AST
| Mesures d'étoiles doubles faites au réfracteur de 38 cm de l'Observatoire de Nice
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Наблюдательные данные и астрометрия
| Созвездие: | Телец |
| Прямое восхождение: | 04h39m53.74s |
| Склонение: | +16°31'18.9" |
| Видимая звёздная величина: | 8.758 |
| Собственное движение RA: | -0.9 |
| Собственное движение Dec: | -10.4 |
| B-T magnitude: | 9.253 |
| V-T magnitude: | 8.799 |
Каталоги и обозначения:
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