J/AJ/156/134 CCD measurements of multiple stars at ASV & NAOR (Cvetkovic+, 2018)
CCD measurements of double and multiple stars at ASV and NAO Rozhen in 2016:
four linear solutions.
Cvetkovic Z., Pavlovic R., Boeva S.
<Astron. J., 156, 134 (2018)>
=2018AJ....156..134C 2018AJ....156..134C (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Photometry, CCD ; Photometry, UBV ;
Positional data
Keywords: binaries: visual -
stars: individual (J 1092AB, HJ 2428, J 375AB, ES 1843) -
techniques: image processing
Abstract:
The results of classical CCD observations for 371 double or multiple stars
(450 pairs) obtained at both, Serbian Astronomical Station on the mountain
of Vidojevica (ASV) and Bulgarian National Astronomical Observatory at
Rozhen (NAOR) are presented. At ASV the observations were performed with
the 0.6 m telescope in the first half of 2016 during 11 nights, and with
the newly mounted 1.4 m telescope in the second half of 2016 during
16 nights. At NAOR, the observations were performed with the 2 m telescope
during four nights. In this paper, we present 477 measurements (position
angle and angular separation) for these 450 pairs. Among them there are
41 pairs with published orbital or linear elements and residuals are given
for them. Some pairs have measurements for several epochs. Our observed
pairs have angular separations in the interval from 1.60" to 190.30",
with a mean angular separation of 14.87" and a median value of 4.34". Two
new pairs and linear elements for four pairs which are calculated for
the first time are also presented.
Description:
In the first half of 2016 at ASV, during 11 nights, CCD observations
of double and multiple stars were performed with 0.6 m telescope
(Pavlovic et al. 2013, J/AJ/146/52) by using CCD camera Apogee Alta U42
(Cvetkovic et al. 2016, J/AJ/151/58). The observations of double and
multiple stars were continued in the second half of 2016. The same camera
was used after placing it at the 1.4 m telescope. The median seeing during
the observing nights at ASV was about 1.4". At NAOR, the observations
were performed with the 2 m telescope during four nights by using CCD
camera VersArray 1300B. The median seeing during the observing nights
at NAOR was about 1.9".
The total number of observed double or multiple stars is 371 (450 pairs),
of which 194 systems (240 pairs) were at ASV and 177 systems (210 pairs)
were at NAOR. For each system, 10 frames were obtained: five frames with
each of the two filters, Cousins/Bessel B and V at ASV and Johnson B and V
at NAOR.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 99 422 CCD measurements of double stars
table3.dat 99 57 CCD measurements of system with orbits or
rectilinear solutions
table4.dat 159 4 Linear elements of pairs J 1092AB, HJ 2428,
J 375AB, and ES 1843
table7.dat 57 67 Measurements and residuals from our linear
solutions for all four pairs
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See also:
B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2014)
J/AJ/108/2338 : Photographic astrometry. VIII. (Heintz 1994)
J/A+AS/123/487 : CCD measurements of double and multiple stars (Popovic+ 1997)
J/PAZh/27/456 : Astrometric study of ADS 48 (Kiyaeva+, 2001)
J/AJ/127/539 : Speckle interferometry at USNO. IX. (Mason+, 2004)
J/AJ/142/73 : NAO Rozhen CCD measurements of multiple stars
(Cvetkovic+, 2011)
J/AJ/146/52 : CCD measurements of multiple stars at NAOR and ASV
(Pavlovic+, 2013)
J/AJ/149/150 : Photometry of multiples at NAOR and ASV in 2012
(Cvetkovic+, 2015)
J/AJ/151/58 : Photometry of stars at NAOR and ASV in 2013-2014
(Cvetkovic+, 2016)
J/AJ/153/195 : Photometry of multiple stars at NAOR&ASV in 2015
(Cvetkovic+, 2017)
Byte-by-byte Description of file: table2.dat table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS Designation in the Washington Double Star
catalog (Cat. B/wds) (HHMMm+DDMM; J2000)
12- 18 A7 --- Disc Discoverer designation
20- 24 A5 --- Comp Components designation
26- 32 F7.4 yr Epoch [16.0322/16.9385] Fractional Besselian year of
observational epoch, 2000+
34- 39 F6.2 arcsec Sep [1.6/190.3] Angular separation ρ (1)
41- 44 F4.2 arcsec e_Sep [0/0.47] Uncertainty in Sep (1)
46- 51 F6.2 deg PA [1.29/359.56] Position angle θ (1) (2)
53- 56 F4.2 deg e_PA [0/1.34] Uncertainty in PA (1)
58- 61 F4.2 mag dBmag [0/6.58]? Component pair B band magnitude
difference
63- 66 F4.2 mag e_dBmag [0.01/0.4]? Uncertainty in dBmag
68- 71 F4.2 mag dVmag [0/6.5]? Component pair V band magnitude
difference
73- 76 F4.2 mag e_dVmag [0/0.41]? Uncertainty in dVmag
78- 82 F5.2 arcsec (O-C)r [-0.45/0.66]? The (O-C) residual in Sep (only
in Table 3) (3)
84- 87 F4.1 deg (O-C)t [-3.1/2.3]? The (O-C) residual in PA (only in
Table 3) (3)
89- 93 A5 --- Ref Reference for published orbit or linear
solution (only in Table 3) (4)
95- 97 F3.1 m Tel [0.6/2] Telescope aperture (5)
99 A1 --- Note [FN] Note (only in Table 2) (6)
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Note (1): The separation and position angle are the average of data taken both
in the B and V filters. The standard deviation of the average is given as
the quoted uncertainty.
Note (2): The position angle has not been corrected for precession and it is
thus based on the equinox for the epoch of observation.
In the calculation of residuals (in Table 3) the position angle has been
corrected for precession.
Note (3): The residuals, (O-C)r and (O-C)t, are two values predicted by the
published orbit or linear solution referenced in Ref.
Note (4): Orbit or linear solution reference as follows:
L = Pairs that have linear solutions given in
http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/wds/lin1
(LIN1);
Cve08 = Cvetkovic, Z. & Ninkovic, S. (2008NewA...13..587C 2008NewA...13..587C);
Egn08 = Eggenberger et al. (2008A&A...482..631E 2008A&A...482..631E);
Hei88 = Heintz (1988A&AS...72..543H 1988A&AS...72..543H);
Hei90 = Heintz (1990AJ.....99..420H 1990AJ.....99..420H);
Hei94 = Heintz (1994, J/AJ/108/2338);
Hop64 = Hopmann (1964AnWie..26....1H 1964AnWie..26....1H);
Hop73 = Hopmann (1973OAWMN.181..301H 1973OAWMN.181..301H);
Hrt11 = Hartkopf, W.I. & Mason, B.D. 2011, IAU Inf. Circ., 26, 175,
http://ad.usno.navy.mil/wds/dsl/Comm26/cir175.pdf;
Kis12 = Kiselev et al. (2012ARep...56..524K 2012ARep...56..524K);
Kis97 = Kiselev et al. (1997ASSL..223..377K 1997ASSL..223..377K);
Kiy01 = Kiyaeva et al. (2001, J/PAZh/27/456);
Kiy14 = Kiyaeva et al. (2014ARep...58..835K 2014ARep...58..835K);
Kiy17 = Kiyaeva et al. (2017AstL...43..316K 2017AstL...43..316K);
Kiy98 = Kiyaeva et al. (1998AstL...24..753K 1998AstL...24..753K);
Lin13 = Ling, J.F. 2013, IAU Inf. Circ., 26, 179,
http://ad.usno.navy.mil/wds/dsl/Comm26/cir179.pdf;
Lin16 = Ling, J.F. 2016, IAU Inf. Circ., 26, 188,
http://ad.usno.navy.mil/wds/dsl/Comm26/cir188.pdf;
Mas04 = Mason et al. (2004, J/AJ/127/539);
Ole03 = Olevic, D. & Cvetkovic, Z. 2003, IAU Inf. Circ., 26, 150,
http://ad.usno.navy.mil/wds/dsl/Comm26/cir150.pdf;
Pop95 = Popovic & Pavlovic (1995BABel.151...45P 1995BABel.151...45P);
Pop96 = Popovic & Pavlovic (1996BABel.153...57P 1996BABel.153...57P);
Pru12 = Prieur et al. (2012MNRAS.422.1057P 2012MNRAS.422.1057P);
Sca09 = Scardia et al. 2009, IAU Inf. Circ., 26, 168,
http://ad.usno.navy.mil/wds/dsl/Comm26/cir168.pdf;
Sca11 = Scardia et al. (2011AN....332..508S 2011AN....332..508S);
Zir08 = Zirm, H. 2008, IAU Inf. Circ., 26, 166,
http://ad.usno.navy.mil/wds/dsl/Comm26/cir166.pdf;
Zir15 = Zirm, H. 2015, IAU Inf. Circ., 26, 185,
http://ad.usno.navy.mil/wds/dsl/Comm26/cir185.pdf.
Note (5): Telescope apertures, which are important information for weighting
the observations are as follows:
0.6 = 0.6m at Serbian Astronomical Station on the mountain of Vidojevica
(ASV);
1.4 = New 1.4m at Serbian Astronomical Station on the mountain of Vidojevica
(ASV);
2 = 2m at Bulgarian National Astronomical Observatory at Rozhen (NAOR).
Note (6): Notes on individual sources are as follows:
F = First resolution of these sources;
N = WDS 21104+4253 = BRT1144 is a triple where the measurements are given for
pairs AB, AC and BC.
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Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS Designation in the Washington Double Star
catalog (Cat. B/wds) (HHMMm+DDMM; J2000)
12- 18 A7 --- Disc Discoverer designation
20- 21 A2 --- Comp Components designation
23- 24 I2 h RAh WDS Hour of Right Ascension (J2000)
26- 27 I2 min RAm WDS Minute of Right Ascension (J2000)
29- 33 F5.2 s RAs WDS Second of Right Ascension (J2000)
35 A1 --- DE- WDS Sign of the Declination (J2000)
36- 37 I2 deg DEd WDS Degree of Declination (J2000)
39- 40 I2 arcmin DEm WDS Arcminute of Declination (J2000)
42- 45 F4.1 arcsec DEs WDS Arcsecond of Declination (J2000)
47- 55 F9.6 arcsec X0 [-0.982934/7.976333] X coordinate of the
closest approach of the secondary star
relative to the primary
57- 64 F8.6 arcsec e_X0 [0.06826/0.216887] Uncertainty in X0
66- 74 F9.6 arcsec/yr XA [-0.032243/0.004683] X component of velocity
of relative motion of the secondary relative
to the primary
76- 83 F8.6 arcsec/yr e_XA [0.000502/0.001945] Uncertainty in XA
85- 93 F9.6 arcsec Y0 [-0.877423/2.14335] Y coordinate of the
closest approach of the secondary star
relative to the primary
95-102 F8.6 arcsec e_Y0 [0.032835/0.156547] Uncertainty in Y0
104-111 F8.6 arcsec/yr YA [0.035936/0.070372] Y component of velocity
of relative motion of the secondary relative
to the primary
113-120 F8.6 arcsec/yr e_YA [0.000834/0.002554] Uncertainty in YA
122-129 F8.3 yr T0 [1843.93/1987.78] Epoch of the closest
approach, in fractional Besselian year
131-135 F5.3 yr e_T0 [0.615/1.128] Uncertainty in T0
137-141 F5.3 arcsec Sep0 [1.217/8.259] The closest relative separation
ρ0
143-147 F5.3 arcsec e_Sep0 [0.019/0.072] Uncertainty in Sep0
149-154 F6.2 deg PA0 [84.89/306.12] Position angle of the closest
approach θ0
156-159 F4.2 deg e_PA0 [0.54/2.73] Uncertainty in PA0
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Byte-by-byte Description of file: table7.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 A7 --- Disc WDS discoverer designation
9- 10 A2 --- Comp WDS components designation
12- 20 F9.4 yr Epoch [1831.18/2017.13] Epoch
22- 27 F6.3 arcsec Sep [1.57/12] Angular separation ρ
29- 34 F6.2 deg PA [48.6/255.4] Position angle θ
36- 41 F6.3 arcsec (O-C)r [-2.086/0.593] The (O-C) residual in Sep
43- 46 F4.1 deg (O-C)t [-5.8/4.6] The (O-C) residual in PA
48- 57 A10 --- Ref Reference (1)
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Note (1): The references are from the Washington database (Cat. B/wds).
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History:
From electronic version of the journal
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 04-Mar-2019