J/AJ/146/56 Speckle interferometry at the USNO. XIX. (Mason+, 2013)
Speckle interferometry at the U.S. Naval Observatory. XIX.
Mason B.D., Hartkopf W.I., Hurowitz H.M.
<Astron. J., 146, 56 (2013)>
=2013AJ....146...56M 2013AJ....146...56M
ADC_Keywords: Stars, double and multiple ; Interferometry
Keywords: binaries: general; binaries: visual
Abstract:
The results of 2916 intensified CCD observations of double stars, made
with the 26inch refractor of the U.S. Naval Observatory, are
presented. Each observation of a system represents a combination of
over two thousand short-exposure images. These observations are
averaged into 1584 mean relative positions and range in separation
from 0.54'' to 98.09'', with a median separation of 11.73''. This is
the 19th in this series of papers and covers the period 2012 January 5
through 2012 December 18. Also presented are 10 pairs that are
reported for the first time, 17 pairs that appear to be lost, linear
elements for 18 pairs, and orbital elements for 2 additional pairs.
Description:
This is the 19th in a series of papers from the U.S. Naval
Observatory's speckle interferometry program, presenting results of
observations obtained at the USNO 26inch telescope in Washington, DC.
From 2012 January 5 through 2012 December 18, the 26inch telescope was
used on 63 of 246 (26%) scheduled nights.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 53 10 New pairs
table2.dat 57 1359 ICCD measurements of double stars
table3.dat 70 236 Measurements of systems with orbits or linear
solutions
refs.dat 200 55 References
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See also:
B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2012)
J/AJ/143/124 : Speckle interferometry at the USNO. XVIII. (Mason+, 2012)
J/AJ/143/10 : WIYN speckle observations of binaries. VII. (Horch+, 2012)
J/AJ/141/45 : Speckle observations of HIP stars (Horch+, 2011)
J/AJ/142/56 : Speckle interferometry at the USNO station (Hartkopf+, 2011)
J/AJ/139/743 : Speckle interferometry in 2008-09 (Tokovinin+, 2010)
J/AJ/138/813 : Speckle interferometry at Mount Wilson Obs. (Hartkopf+, 2009)
J/AJ/135/1334 : Speckle interferometry at the USNO station (Hartkopf+, 2008)
J/AJ/123/1023 : Binary star orbits (Seymour+, 2002)
J/A+A/385/87 : Speckle interferometry of multiple stars (Balega+, 2002)
J/A+A/367/865 : Speckle observations of binary systems (Prieur+ 2001)
J/AJ/121/3224 : Speckle interferometry of HIP binaries (Mason+, 2001)
J/AJ/119/3084 : ICCD speckle obs. of binary stars. XXIII. (Hartkopf+, 2000)
J/A+A/341/121 : Visual binary orbits and masses (Soederhjelm 1999)
J/A+AS/105/503 : Binary star speckle measurements (Balega+ 1994)
J/AJ/106/1639 : Speckle observations of binary stars (McAlister+ 1993)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Hour of Right Ascension (J2000) (1)
4- 5 I2 min RAm Minute of Right Ascension (J2000) (1)
7- 11 F5.2 s RAs Second of Right Ascension (J2000) (1)
13 A1 --- DE- Sign of the Declination (J2000) (1)
14- 15 I2 deg DEd Degree of Declination (J2000) (1)
17- 18 I2 arcmin DEm Arcminute of Declination (J2000) (1)
20- 23 F4.1 arcsec DEs Arcsecond of Declination (J2000) (1)
25- 33 A9 --- Disc Discover designation (2)
35- 39 A5 --- m_Disc Additional system component
41- 45 F5.2 mag mag1 [10.3/12.5] Visual magnitude of the primary (3)
47- 51 F5.2 mag mag2 [11.2/13.5] Visual magnitude of the secondary (3)
53 I1 --- n_Disc [1/2] Circumstance of the discovery (4)
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Note (1): Of the primary of the pair. From CDS, Strasbourg, France.
Note (2): WSI=Washington Stellar Interferometer; CHR=Center for High Angular
Resolution Astronomy (CHARA).
Note (3): Magnitude information is from one of the catalogs queried in the
Aladin sky atlas, operated at CDS, Strasbourg, France.
Note (4): Note as follows:
1 = Physicality status unknown, but closer than the known pair;
2 = This anonymous binary was observed in 1982 with the Mayall reflector on
Kitt Peak with the CHARA Speckle Camera. See Section 2.1.1 for more details.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- WDS WDS name (HHMMm+DDMM; J2000)
12- 20 A9 --- Disc Discoverer designation
22- 26 A5 --- m_Disc Additional system component
28- 35 F8.3 yr Epoch [2012.01/2012.97] Besselian year of observation
37- 41 F5.1 deg PA Mean position angle θ (1)
42 A1 --- u_PA [:] Uncertainty flag for PA
44- 48 F5.2 arcsec Sep Mean separation ρ
49 A1 --- u_Sep [:] Uncertainty flag for Sep
51 I1 --- o_Sep [1/8] Number of observations contained in the mean
53 A1 --- Note Object notes (G1)
55- 57 I3 yr Ny [55/108]? Number of year since last measure
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Note (1): The position angle, measured from north through east, has not been
corrected for precession, and is thus based on the equinox for the epoch
of observation.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS WDS name (HHMMm+DDMM; J2000)
12- 20 A9 --- Disc Discover designation
22- 26 A5 --- m_Disc Additional system component
28- 35 F8.3 yr Epoch [2012/2013[? Besselian year of observation
37- 41 F5.1 deg PA ? Position angle θ
43- 47 F5.2 arcsec Sep ? Separation ρ
49 I1 --- o_Sep [1/8]? Number of observations in the mean
51- 54 F4.1 deg (O-C)P The (O-C) position angle residual (O-C)θ
56- 60 F5.2 arcsec (O-C)S The (O-C) separation residual (O-C)ρ
62- 68 A7 --- Ref Reference; in refs.dat file
70 A1 --- Note Object notes (A or B) (G1)
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Ref Reference identifier
7- 25 A19 --- BibCode Bibliographic code
27- 47 A21 --- Aut Author's name
49-200 A152 --- Com Comments
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Global notes:
Note (G1): Note as follows:
A = This is the vector addition of measures of other pairs.
B = Pair originally published as BVD 45 (Benavides et al., 2010,
cat. J/other/JDSO/6.30), but with incorrect sign given to declination. Pair
later "rediscovered" and published with correct declination; this latter
discoverer designation has been maintained.
C = Confirming observation.
D = Motion non-linear, but insufficient for an orbital solution at this time.
E = The close pair, CHR 84Aa,Ab (unresolved here), recently had a combined
solution orbit determined yielding masses of
MA=0.802±0.055MSun,MB=0.622±0.053MSun and an orbital
parallax of 28.26±1.70mas. See C. D. Farrington et al. (2014, in
preparation).
F = First measured by CHARA (see Section 2.1.1 in the paper).
1 = See Table1.
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History:
From electronic version of the journal
References:
Douglass et al., Paper I 1997ApJS..111..289D 1997ApJS..111..289D
Germain et al., Paper II 1999AJ....117.1905G 1999AJ....117.1905G, Cat. J/AJ/117/1905
Germain et al., Paper III 1999AJ....117.2511G 1999AJ....117.2511G, Cat. J/AJ/117/2511
Douglass et al., Paper IV 1999AJ....118.1395D 1999AJ....118.1395D, Cat. J/AJ/118/1395
Douglass et al., Paper V 2000AJ....119.3071D 2000AJ....119.3071D, Cat. J/AJ/119/3071
Mason et al., Paper VI 2000AJ....120.1120M 2000AJ....120.1120M, Cat. J/AJ/120/1120
Mason et al., Paper VII 2001AJ....122.1586M 2001AJ....122.1586M, Cat. J/AJ/122/1586
Mason et al., Paper VIII 2002AJ....124.2254M 2002AJ....124.2254M, Cat. J/AJ/124/2254
Mason et al., Paper IX 2004AJ....127..539M 2004AJ....127..539M, Cat. J/AJ/127/539
Mason et al., Paper X 2004AJ....128.3012M 2004AJ....128.3012M, Cat. J/AJ/128/3012
Mason et al., Paper XI 2006AJ....131.2687M 2006AJ....131.2687M, Cat. J/AJ/131/2687
Mason et al., Paper XII 2006AJ....132.2219M 2006AJ....132.2219M, Cat. J/AJ/132/2219
Mason et al., Paper XIII 2007AJ....134.1671M 2007AJ....134.1671M, Cat. J/AJ/134/1671
Mason et al., Paper XIV 2008AJ....136.2223M 2008AJ....136.2223M, Cat. J/AJ/136/2223
Mason et al., Paper XV 2010AJ....140..480M 2010AJ....140..480M, Cat. J/AJ/140/480
Mason et al., Paper XVI 2011AJ....141..157M 2011AJ....141..157M, Cat. J/AJ/141/157
Mason et al., Paper XVII 2011AJ....142...46M 2011AJ....142...46M, Cat. J/AJ/142/46
Mason et al., Paper XVIII 2012AJ....143..124M 2012AJ....143..124M, Cat. J/AJ/143/124
Hartkopf et al., Paper XX 2015AJ....150..136H 2015AJ....150..136H, Cat. J/AJ/150/136
Mason et al., Paper XXI 2017AJ....153...20M 2017AJ....153...20M, Cat. J/AJ/153/20
Mason et al., Paper XXII 2017AJ....154..183M 2017AJ....154..183M, Cat. J/AJ/154/183
Mason et al., Paper XXIII 2018AJ....156..240M 2018AJ....156..240M
(End) Greg Schwarz [AAS], Sylvain Guehenneux [CDS] 30-Jun-2014