J/AJ/151/58 Photometry of stars at NAOR and ASV in 2013-2014 (Cvetkovic+, 2016)
CCD measurements of double and multiple stars at NAO rozhen and ASV in 2013 and
2014. Eight linear solutions.
Cvetkovic Z., Pavlovic R., Boeva S.
<Astron. J., 151, 58 (2016)>
=2016AJ....151...58C 2016AJ....151...58C (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Photometry, UBV ; Photometry, CCD
Keywords: binaries: visual - techniques: image processing -
stars: individual (STI 2051AB,HJ 3263,BRT 2521,J 78,HJ 2804AB,
STF 2400A-BC,J 1336AB,J 1338)
Abstract:
Using the 2m telescope of the Bulgarian National Astronomical
Observatory at Rozhen, observations of 271 double or multiple stars
were carried out during seven nights in 2013 and 2014. This is the
eighth series of measurements of CCD frames of double and multiple
stars obtained at Rozhen. Also in 2013 and 2014, using the 0.6m
telescope of the Serbian Astronomical Station on the mountain of
Vidojevica, observations of 343 double or multiple stars were carried
out during 21 nights. This is the third series of measurements of CCD
frames of double and multiple stars obtained at this station. In this
paper, we present the results for the position angle and angular
separation for 721 pairs and residuals for 126 pairs with published
orbital elements or linear solutions. These observations have angular
separations in the range from 1.24'' to 202.30'', with a median
angular separation of 7.17''. We also present eight linear solutions
that have been calculated for the first time.
Description:
The previous seven series of CCD observations of double and multiple
stars performed by the Belgrade team at the Bulgarian National
Astronomical Observatory at Rozhen (NAOR) with a CCD camera attached
to the 2m telescope took place in 2004, 2005, 2006, 2009, 2010, 2011,
and 2012, respectively. The results have been published in Pavlovic et
al. (2005SerAJ.171...49P 2005SerAJ.171...49P; 2013, Cat. J/AJ/146/52) and Cvetkovic et al.
(2006SerAJ.172...53C 2006SerAJ.172...53C; 2007SerAJ.174...83C 2007SerAJ.174...83C; 2010SerAJ.180..103C 2010SerAJ.180..103C; 2011,
Cat. J/AJ/142/73; 2015, Cat. J/AJ/149/150).
The eighth series comprising observations of 271 double or multiple
stars took place during seven nights: five nights in 2013 and two
nights in 2014. The telescope is of the Ritchey-Chretien-Coude-type
with a focal length of 16m as given by the manufacturer. The frames
were obtained by using the CCD camera VersArray 1300B. The basic
characteristics of this camera and its orientation error are given in
Table1. For each double or multiple star, 10 frames were obtained: 5
in the Johnson B filter and 5 in the Johnson V filter.
During the summer of 2011, the first CCD observations of double and
multiple stars from the Astronomical Station on the mountain of
Vidojevica (ASV) took place. The results for the previous two series
have been published in Pavlovic et al. 2013 (Cat. J/AJ/146/52) and
Cvetkovic et al. 2015 (Cat. J/AJ/149/150). This station belongs to the
Astronomical Observatory of Belgrade. The 60cm telescope has an
equatorial mounting and a Cassegrain optical system. The telescope
focal length is 600cm as given by the manufacturer. We carried out CCD
observations of 343 visual double or multiple stars at ASV during 21
nights: 12 nights in 2013 and 9 nights in 2014. This is the third
series of observations at ASV. For these nights, we used either SBIG
ST-10ME or Apogee Alta U42 CCD cameras. Its basic characteristics are
summarized in Table1. For each star pair 10 frames were obtained: 5 in
the Cousins/Bessel B filter and 5 in the Cousins/Bessel V filter.
We observed 271 double or multiple stars at NAOR and 343 at ASV.
However, 113 were observed at both stations. Therefore, the total
number of systems is 501.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 67 3 Basic characteristics of the CCD cameras
table2.dat 28 13 New pairs
table3.dat 93 784 CCD measurements of double stars
table4.dat 149 188 CCD measurements of systems with orbits or
rectilinear solutions
table8.dat 60 236 Measurements and residuals (in ρ and θ)
from our linear solutions for all eight pairs
notes.dat 990 3 Notes
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See also:
B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2014)
B/sb9 : 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2004-2014)
J/AJ/149/150 : Photometry of multiples at NAOR and ASV (Cvetkovic+, 2015)
J/AJ/146/52 : CCD measurements of multiple stars (Pavlovic+, 2013)
J/AJ/142/73 : NAOR CCD measurements of multiple stars (Cvetkovic+, 2011)
J/AJ/142/56 : Speckle interferometry at the USNO station (Hartkopf+, 2011)
J/AJ/128/3012 : Speckle interferometry at USNO. X. (Mason+, 2004)
J/AJ/127/539 : Speckle interferometry at USNO. IX. (Mason+, 2004)
J/AJ/123/1023 : Binary star orbits (Seymour+, 2002)
J/PAZh/27/456 : Astrometric study of ADS 48 (Kiyaeva+, 2001)
J/A+A/341/121 : Visual binary orbits and masses (Soederhjelm 1999)
J/PAZh/24/868 : The triple system ADS 9167 (Kiyaeva+, 1998)
http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/wds/lin1 : USNO LIN1
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 15 A15 --- Camera CCD camera type
17- 25 A9 pix Array Size of the array
27- 35 A9 um Size Pixel size
37- 45 A9 arcmin FOV Field-of-view size
47- 53 F7.5 arcsec/pix Scale Pixel scale
55- 61 F7.5 arcsec/pix e_Scale Uncertainty in Scale
63- 67 F5.3 deg EO Orientation error
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Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 h RAh Hour of Right Ascension of primary (J2000)
3- 4 I2 min RAm Minute of Right Ascension of primary (J2000)
5- 9 F5.2 s RAs Second of Right Ascension of primary (J2000)
10 A1 --- DE- Sign of the Declination of primary (J2000)
11- 12 I2 deg DEd Degree of Declination of primary (J2000)
13- 14 I2 arcmin DEm Arcminute of Declination of primary (J2000)
15- 18 F4.1 arcsec DEs Arcsecond of Declination of primary (J2000)
20- 25 A6 --- Disc Discover designation
27- 28 A2 --- Comp Component
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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 Designation in the Washington Double Star
catalog (B/wds) (HHMMm+DDMM; J2000)
12- 18 A7 --- Disc Discoverer designation (1)
20- 24 A5 --- Comp Component(s)
26- 34 F9.4 yr Epoch [2013/2015] Fractional Besselian year of
observational epoch
36- 41 F6.2 arcsec Sep [1.2/202.3] Angular separation ρ (2)
43- 46 F4.2 arcsec e_Sep [0/0.57] Standard deviation in Sep
48- 53 F6.2 deg PA [0/360] Position angle θ (2)
55- 58 F4.2 deg e_PA [0/2.62] Standard deviation in PA
60- 63 F4.2 mag dBmag [0/6]? Component pair B band magnitude
difference
65- 68 F4.2 mag e_dBmag [0/0.24]? Standard deviation in dBmag
70- 73 F4.2 mag dVmag [0/5.5]? Component pair V band magnitude
difference
75- 78 F4.2 mag e_dVmag [0.01/0.32]? Standard deviation in dVmag
80- 91 A12 --- Camera Camera designation (Apogee Alta, SBIG ST-10ME,
or VersArray) (G1)
93 A1 --- New [F] Flag "F" indicates a first resolution (one
of the 13 new pairs)
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Note (1): Double-star name after the discoverer.
Note (2): From an average of data taken in both the B and V filters. Note that
the position angle has not been corrected for precession and it is thus
based on the equinox for the epoch of observation.
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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 (B/wds) (HHMMm+DDMM; J2000)
12- 18 A7 --- Disc Discoverer designation (1)
20- 24 A5 --- Comp Component(s)
26- 34 F9.4 yr Epoch [2013/2015] Besselian year of observational
epoch
36- 41 F6.2 arcsec Sep [1.6/114.8] Angular separation ρ (2)
43- 46 F4.2 arcsec e_Sep [0.01/0.51] Uncertainty in Sep
48- 53 F6.2 deg PA [2.9/358.8] Position angle θ (2)
55- 58 F4.2 deg e_PA [0.01/4.4] Uncertainty in PA
60- 63 F4.2 mag dBmag [0/5.46]? Component B band magnitude difference
65- 68 F4.2 mag e_dBmag [0.01/0.3]? Uncertainty in delBmag
70- 73 F4.2 mag dVmag [0/5.24]? Component V band magnitude difference
75- 78 F4.2 mag e_dVmag [0.01/0.18]? Uncertainty in delVmag
80- 84 F5.2 arcsec (O-C)r [-1/0.8] The (O-C) residual in Sep
86- 89 F4.1 deg (O-C)t [-3.4/29] The (O-C) residual in PA
91-137 A47 --- Ref Reference for (O-C) residuals (3)
139-149 A11 --- Camera Camera (Apogee Alta or VersArray) (G1)
--------------------------------------------------------------------------------
Note (1): Double-star name after the discoverer.
Note (2): From an average of data taken in both the B and V filters. The
position angle has not been corrected for precession; however, in the
calculation of residuals the position angle has been precessed.
Note (3): The reference is to either a published orbit or a determination in the
Catalog of Rectilinear Elements
(http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/wds/lin1)
established and maintained at the U.S. Naval Observatory (USNO) indicated
by the letter L.
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Byte-by-byte Description of file: table8.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 A7 --- Disc Discoverer designation (BRT2521, HJ 2804, HJ 3263,
J 1336, J 1338, J 78, STF2400, or STI2051)
9- 12 A4 --- Comp Component
14- 22 F9.4 yr Epoch [1829/2015] Besselian year of observational epoch
24- 29 F6.3 arcsec Sep [1.8/20] Angular separation ρ
31- 37 F7.3 deg PA [4.6/350.1] Position angle θ
39- 43 F5.2 arcsec (O-C)r [-1.9/1.2] The (O-C) residual in Sep
45- 49 F5.1 deg (O-C)t [-15.6/11.2] The (O-C) residual in PA
51- 60 A10 --- Ref Reference from Washington database (Cat. B/wds)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: notes.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS Designation in the Washington Double Star
catalog (B/wds) (HHMMm+DDMM; J2000)
12- 18 A7 --- Disc Discoverer designation
20- 23 A4 --- Comp Component
25-990 A966 --- Note Notes
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Global Notes:
Note (G1): See table 1 for details about the characteristics of the CCD cameras.
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History:
From electronic version of the journal
(End) Prepared by [AAS]; Sylvain Guehenneux [CDS] 04-Oct-2016