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J/AJ/153/212  Observations of binary stars at the WIYN telescope  (Horch+, 2017)

Observations of binary stars with the Differential Speckle Survey Instrument. VII. Measures from 2010 September to 2012 February at the WIYN telescope. Horch E.P., Casetti-Dinescu D.I., Camarata M.A., Bidarian A., van Altena W.F., Sherry W.H., Everett M.E., Howell S.B., Ciardi D.R., Henry T.J., Nusdeo D.A., Winters J.G. <Astron. J., 153, 212 (2017)> =2017AJ....153..212H (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Photometry ; Optical Keywords: binaries: visual - techniques: high angular resolution - techniques: interferometric - techniques: photometric Abstract: We report on speckle observations of binary stars carried out at the WIYN Telescope over the period from 2010 September through 2012 February, providing relative astrometry for 2521 observations of 883 objects, 856 of which are double stars and 27 of which are triples. The separations measured span a range of 0.01-1.75 arcsec. Wavelengths of 562, 692, and 880 nm were used, and differential photometry at one or more of these wavelengths is presented in most cases. 66 components were resolved for the first time. We also estimate detection limits at 0.2 and 1.0 arcsec for high-quality observations in cases where no companion was seen, a total of 176 additional objects. Detection limits vary based on observing conditions and signal-to-noise ratio, but are approximately 4 mag at 0.2 arcsec and 6 mag at 1.0 arcsec on average. Analyzing the measurement precision of the data set, we find that the individual separations obtained have linear measurement uncertainties of approximately 2 mas, and photometry is uncertain to approximately 0.1 mag in general. This work provides fundamental, well-calibrated data for future orbit and mass determinations, and we present three first orbits and total mass estimates of nearby K-dwarf systems as examples of this potential. Description: The observations were carried out over six runs at the WIYN telescope, specifically, 2010 September 17-21, 2010 October 23-26, 2011 June 11-16, 2011 September 7-11, 2011 December 10-11, and 2012 February 4-8. In each case, an observing list was constructed primarily from HDSs and Hipparcos suspected doubles (ESA 1997ESASP1200.....E), double-lined spectroscopic binary stars identified in the Geneva-Copenhagen spectroscopic survey (Nordstroem et al. 2004, Cat. V/117), and stars we have previously found to be double in our own program and reported in earlier papers in this series. For all observations here, the Differential Speckle Survey Instrument (DSSI) was used (Horch et al. 2009AJ....137.5057H). The instrument can mount to either of the Nasmyth ports of the WIYN telescope and takes speckle observations in two filters simultaneously. The DSSI observing program at WIYN began in 2008, and the instrument was upgraded to use two electron-multiplying CCD cameras in 2010 January. More recently, DSSI have also been used at Lowell Observatory's Discovery Channel Telescope (DCT), and at both the Gemini north and Gemini south telescopes. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file stars.dat 36 1058 Star list and Simbad positions table2.dat 80 2521 Double star speckle measures table4.dat 90 214 5σ detection limits for unresolved stars
See also: I/237 : The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996) I/239 : The Hipparcos and Tycho Catalogues (ESA 1997) B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2014) I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007) V/117 : Geneva-Copenhagen Survey of Solar neighbourhood (Holmberg+, 2007) J/AJ/106/1639 : Speckle observations of binary stars (McAlister+ 1993) J/AJ/117/548 : 1997 WIYN binary stars speckle observations (Horch+, 1999) J/AJ/136/312 : 2001-2006 WIYN binary stars speckle observations (Horch+, 2008) J/AJ/139/205 : 2007-2008 WIYN speckle observations of binaries (Horch+, 2010) J/AJ/141/45 : Speckle observations of HIP stars (Horch+, 2011) J/AJ/143/10 : 2008-2009 WIYN speckle observations of binaries. VII. (Horch+, 2012) J/other/AstBu/68.53 : Nearby multiple Speckle interferometry. V. (Balega+, 2013) J/AJ/150/151 : DSSI observations of binaries. VI. Measures in 2014 (Horch+, 2015) Byte-by-byte Description of file: stars.dat
Bytes Format Units Label Explanations
1 A1 --- Type [ml] Type of data (1) 3- 12 A10 --- Star Star name 14- 15 I2 h RAh Simbad Hour of Right Ascension (J2000) 17- 18 I2 min RAm Simbad Minute of Right Ascension (J2000) 20- 24 F5.2 s RAs Simbad Second of Right Ascension (J2000) 26 A1 --- DE- Simbad Sign of the Declination (J2000) 27- 28 I2 deg DEd Simbad Degree of Declination (J2000) 30- 31 I2 arcmin DEm Simbad Arcminute of Declination (J2000) 33- 36 F4.1 arcsec DEs Simbad Arcsecond of Declination (J2000)
Note (1): Type as follows: m = Double star speckle measures (table 2); l = 5σ detection limits for unresolved stars (table 4).
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 10 A10 --- WDS Washington Double Star catalog (Cat. I/237) designation (HHMMm+DDMM, J2000) 12- 22 A11 --- OName Other designation 24- 36 A13 --- Disc Binary discover designation 38- 43 I6 --- HIP [170/5000024]? Hipparcos catalogue number (Cat. I/239) 45- 51 F7.4 yr Date [10.7115/12.105] Besselian date of the observation (offset 2000) 53- 57 F5.1 deg PA [0/359.7] Position angle of the secondary star relative to the primary (1) 59- 64 F6.4 arcsec Sep [0.0101/1.7551] Separation of the two stars 66- 69 F4.2 mag Dmag [0/5.65]? Magnitude difference of the pair in the filter used 71- 73 I3 nm lambda [88/880] Center wavelength of the filter used 75- 76 I2 nm FWHM [40/50] Full width at half maximum of the filter transmission 78- 80 A3 --- fCat Catalog entry flag(s) (2)
Note (1): North through East defining the positive sense of PA. Note (2): Catalog entry flag as follows: a = Quadrant ambiguous; b = Quadrant inconsistent with previous measures in the 4th Interferometric Catalog; c = These measures were previously published in Horch et al. (2011AJ....141..180H); this reanalysis should replace the previous values; d = These measures were previously published in Appourchaux et al. (2015A&A...582A..25A); this reanalysis should replace the previous values; K = This star is a member of the nearby K-dwarf sample discussed in the text.
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 10 A10 --- WDS Washington Double Star catalog (Cat. I/237) designation (HHMMm+DDMM, J2000) 12- 17 I6 --- HIP [344/118077]? Hipparcos catalogue number (Cat. I/239) 19- 25 F7.4 yr Date [10.7116/12.1049] Besselian date of the observation (offset 2000) 27- 29 I3 nm lambdaA [692] Center wavelength of the 692 nm filter (Channel A) used 31- 34 F4.2 mag DlA-0.2 [2.59/4.76] 5σ detection limit at 0.2 arcsec 36- 39 F4.2 mag DlA-1.0 [3.47/8.58] 5σ detection limit at 1.0 arcsec 41- 43 I3 nm lambdaB [562/880] Center wavelength of the filter (Channel B) used 45- 48 F4.2 mag DlB-0.2 [2.17/4.68] 5σ detection limit at 0.2 arcsec 50- 53 F4.2 mag DlB-1.0 [3.08/7.84] 5σ detection limit at 1.0 arcsec 55- 90 A36 --- Com Comment on source
History: From electronic version of the journal References: Horch et al. Paper I. 2009AJ....137.5057H Horch et al. Paper II. 2011AJ....141...45H, Cat. J/AJ/141/45 Horch et al. Paper III. 2011AJ....141..180H Horch et al. Paper IV. 2012AJ....144..165H Horch et al. Paper V. 2015AJ....149..151H Horch et al. Paper VI. 2015AJ....150..151H, Cat. J/AJ/150/151
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 15-May-2018
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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