J/AJ/112/628 BATC Color Survey of M67 (Fan+ 1996)
Deep Wide-Field Spectrophotometry of the Open Cluster M67
Fan X., Burstein D., Chen J.S., Zhu J., Jiang Z.J., Wu H., Yan H.J.,
Zheng Z.Y., Zhou X., Fang L.Z., Chen F.Z., Deng Z.G., Chu Y.Q.,
Hester J.J., Windhorst R.A., Li Y., Lu P., Sun W-H., Chen W-P.,
Tsay W-S., Chiueh T-H.
<Astron. J. 112, 628 (1996)>
=1996AJ....112..628F 1996AJ....112..628F
ADC_Keywords: Clusters, open; Spectrophotometry
Description:
The authors present nine color CCD intermediate-band spectrophotometry
of a two square degree field centered on the old open cluster M67,
from 3890 Angstroms to nearly 1 micron. These observations are
taken as a part of the BATC (Beijing-Arizona-Taipei-Connecticut)
Color Survey of the Sky, for both scientific and calibration reasons.
The BATC program uses a dedicated 60/90 cm Schmidt telecope with a
2048 x 2048 CCD and 15 specially-designed intermediate-band filters
to be applied to both galactic and extragalactic studies. Nine-band
spectrophotometry of 6558 stars is presented.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
cat2000.dat 164 6558 Magnitudes and errors (catalog)
summary.dat 40 9 Summary of photometric data (table 3)
standard.dat 102 29 Secondary standard stars (table 4)
tables.txt 79 52 Isochrones, distribution, mass function
--------------------------------------------------------------------------------
See also:
II/123 : UBV Photometry of Faint Stars (V>14.5) in M67 (Frolov+ 1986)
V/52 : Photometry and Proper Motions of stars in M67 (Frolov+ 1986)
J/A+AS/100/243 : Proper motions in M 67 (Zhao+ 1993)
J/AJ/106/181 : CCD photometry of open cluster M67 (Montgomery+ 1993)
J/BaltA/7/369 : M67 CCD photometry (Boyle+, 1998)
Table 1: The 9 BATC filters used for this catalog are marked "YES".
------------------------------------------
Filter Lambda FWHM Observed?
(nm) (nm)
------------------------------------------
1 336.0 36.0 No
2 389.0 34.0 Yes
3 421.0 32.0 No
4 455.0 34.0 No
5 492.5 39.0 No
6 527.0 34.0 No
7 579.5 31.0 Yes
8 607.5 31.0 Yes
9 666.0 48.0 Yes
10a 705.0 30.0 No
10 721.5 55.0 Yes
10b 749.0 33.0 No
11 802.0 26.0 Yes
12 848.0 18.0 Yes
13 919.0 26.0 Yes
14 974.5 27.0 Yes
------------------------------------------
Table 2: Nightly Observing Log
Date Filter: 2 7 8 9 10 11 12 13 14 FWHM
(yymmdd) (sec)(sec)(sec)(sec)(sec)(sec)(sec)(sec)(sec)(arcsec)
-------------------------------------------------------------------
940107 180 180 180 360 2.1
940109 1200 1200 1200 3600 3.2
940117 (I) 300 300 300 1200 6.0
940117 (II) 180 180 180 600 4.5
940117 (III) 180 180 180 600 5.6
940117 (IV) 180 180 6.1
940202 900 300 300 600 600 3.0
940204 (I) 600 180 180 360 360 2.7
940204 (II) 600 180 180 360 360 2.1
940204 (III) 600 180 180 360 360 1.7
940204 (IV) 600 180 180 360 360 1.7
940205 2400 1200 1200 2400 2400 2.6
---------------------------------------------------------------
Total 5700 2220 2220 2040 2220 2220 4440 4440 6260
19.6 19.5 20.0 20.0 20.1 18.4 18.0 18.6 16.6
---------------------------------------------------------------
Byte-by-byte Description of file: cat2000.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 5 I4 --- ID [1-6558] Running number
9 I1 h RAh Right Ascension (J2000) hours
11- 12 I2 min RAm Right Ascension (J2000) minutes
14- 18 F5.2 s RAs Right Ascension (J2000) seconds
20 A1 --- DE- Declination sign
21- 22 I2 deg DEd Declination (J2000) degrees
24- 25 I2 arcmin DEm Declination (J2000) arcminutes
27- 31 F5.2 arcsec DEs Declination (J2000) arcseconds
34- 39 F6.3 mag mag3890 ?=0.000 Filter 2 AB Magnitude
41- 45 F5.3 mag e_mag3890 ?=0.000 Estimated 2 Magnitude error
48- 53 F6.3 mag mag5795 ?=0.000 Filter 7 AB Magnitude
55- 59 F5.3 mag e_mag5795 ?=0.000 Estimated 7 Magnitude error
62- 67 F6.3 mag mag6075 ?=0.000 Filter 8 AB Magnitude
69- 73 F5.3 mag e_mag6075 ?=0.000 Estimated 8 Magnitude error
76- 81 F6.3 mag mag6660 ?=0.000 Filter 9 AB Magnitude
83- 87 F5.3 mag e_mag6660 ?=0.000 Estimated 9 Magnitude error
90- 95 F6.3 mag mag7215 ?=0.000 Filter 10 AB Magnitude
97-101 F5.3 mag e_mag7215 ?=0.000 Estimated 10 Magnitude error
104-109 F6.3 mag mag8020 ?=0.000 Filter 11 AB Magnitude
111-115 F5.3 mag e_mag8020 ?=0.000 Estimated 11 Magnitude error
118-123 F6.3 mag mag8480 ?=0.000 Filter 12 AB Magnitude
125-129 F5.3 mag e_mag8480 ?=0.000 Estimated 12 Magnitude error
132-137 F6.3 mag mag9190 ?=0.000 Filter 13 AB Magnitude
139-143 F5.3 mag e_mag9190 ?=0.000 Estimated 13 Magnitude error
146-151 F6.3 mag mag9745 ?=0.000 Filter 14 AB Magnitude
153-157 F5.3 mag e_mag9745 ?=0.000 Estimated 14 Magnitude error
160-163 I4 --- S77 ?=0 Sanders (1977A&AS...27...89S 1977A&AS...27...89S) number
164 I1 --- m_S77 [1,2]? Additional number for 1264, 2209
--------------------------------------------------------------------------------
Byte-by-byte Description of file: summary.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 0.1nm Lambda Wavelength of filter
7 I1 --- N Number of stars observed with filter
10 I1 --- NObs Number of observations with filter
12- 16 F5.3 --- a *Coefficient a
18- 22 F5.3 --- e_a *Error on a
24- 28 F5.3 --- b *Coefficient b
30- 34 F5.3 --- e_b *Error on b
36- 40 F5.3 --- res *Residual
--------------------------------------------------------------------------------
Note on a, e_a, b, e_b, res:
See original paper for equations.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: standard.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- ID Star number in catalog
6- 9 I4 --- MMJ MMJ number (1993AJ....106..181M 1993AJ....106..181M)
11- 14 I4 --- S77 Sanders (1977A&AS...27...89S 1977A&AS...27...89S) number
18 I1 h RAh [8] Right Ascension (J2000) hours
20- 21 I2 min RAm Right Ascension (J2000) minutes
23- 27 F5.2 s RAs Right Ascension (J2000) seconds
28 A1 --- DE- Declination sign
29- 30 I2 deg DEd [11] Declination (J2000) degrees
32- 33 I2 arcmin DEm Declination (J2000) arcminutes
35- 39 F5.2 arcsec DEs Declination (J2000) arcseconds
41- 46 F6.3 mag mag3890 Filter 2 AB Magnitude
48- 53 F6.3 mag mag5795 Filter 7 AB Magnitude
55- 60 F6.3 mag mag6075 ? Filter 8 AB Magnitude
62- 67 F6.3 mag mag6660 ? Filter 9 AB Magnitude
69- 74 F6.3 mag mag7215 ? Filter 10 AB Magnitude
76- 81 F6.3 mag mag8020 ? Filter 11 AB Magnitude
83- 88 F6.3 mag mag8480 Filter 12 AB Magnitude
90- 95 F6.3 mag mag9190 Filter 13 AB Magnitude
97-102 F6.3 mag mag9745 Filter 14 AB Magnitude
--------------------------------------------------------------------------------
References:
Fan et al. 1996, Astron. J. 112, 268. (1996AJ....112..628F 1996AJ....112..628F)
Montgomery K.A., Marschall L.A. and Janes K.A. (MMJ) 1993. Astron. J.
106, 181. (1993AJ....106..181M 1993AJ....106..181M)
Sanders W.L. 1977, Astron. Astrophys. Suppl. 27, 89. (1977A&AS...27...89S 1977A&AS...27...89S)
(End) Julie Anne Watko [SSDOO/ADC] 16-Dec-1997