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J/A+AS/112/347 A Homogeneous Bright QSO Survey (Cristiani+, 1995)
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The ESO Key-Programme "A Homogeneous Bright QSO Survey" - I
The Methods and the "Deep" Fields
Cristiani S., La Franca F., Andreani P., Gemmo A., Goldschmidt P.,
Miller L., Vio R., Barbieri C., Bodini L., Iovino A., Lazzarin M.,
Clowes R., MacGillivray H., Gouiffes Ch., Lissandrini C., Savage A.
<Astron. Astrophys. Suppl. Ser. 112, 347 (1995)>
=1995A&AS..112..347C (SIMBAD/NED BibCode)
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ADC_Keywords: Surveys; QSOs
Keywords: quasars: general - galaxies: Seyfert - galaxies: starburst -
galaxies: redshifts
Description:
This is the first paper in a series aimed at defining a statistically
significant sample of QSOs in the range 15<B<18.75 and 0.3<z<2.2. The
selection is carried out using direct plates obtained at the ESO and UK
Schmidt Telescopes, scanned with the COSMOS facility and searched for
objects with an ultraviolet excess. Follow-up spectroscopy, carried out
at ESO La Silla, is used to classify each candidate. In this initial paper,
we describe the scientific objectives of the survey; the selection and
observing techniques used. We present the first sample of 285 QSOs
(M_B_<-23) in a 153 sq.deg area, covered by the six "deep" fields,
intended to obtain significant statistics down B=~18.75 with unprecedented
photometric accuracy. From this database, QSO counts are determined in the
magnitude range 17<B<18.75.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
f287 56 36 List of candidates and their spectroscopic
identification: Field 287
f295 65 99 List of candidates and their spectroscopic
identification: Field 295
f351 64 83 List of candidates and their spectroscopic
identification: Field 351
f534 58 50 List of candidates and their spectroscopic
identification: Field 534
fsa94 62 134 List of candidates and their spectroscopic
identification: Field SA94
fsgp 57 173 List of candidates and their spectroscopic
identification: Field SGP
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Byte-by-byte Description of file: f287
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Bytes Format Units Label Explanations
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2- 3 I2 h RAh Right ascension (1950)
5- 6 I2 min RAm Right ascension (1950)
8- 12 F5.2 s RAs Right ascension (1950)
14 A1 --- DE- Declination sign
15- 16 I2 deg DEd Declination (1950)
18- 19 I2 arcmin DEm Declination (1950)
21- 24 F4.1 arcsec DEs Declination (1950)
26- 30 F5.2 mag Bjmag Bj magnitude
32- 36 F5.2 mag U-Bj U-Bj colour index
38- 42 F5.2 mag Bj-R Bj-R colour index
44 A1 --- Ident Identification class (1)
49- 54 F6.4 --- z []? Redshift
56 I1 --- Refer [1,2]? Reference (2)
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Note (1): Q: QSO or Seyfert 1 galaxy
HII: starburst galaxy
s: star
g: galaxy
ext: very extended object
In some cases a negative identification is reported with the prefix
'n': for example 'nq' means that the object is "not a QSO".
Note (2): 1 Hawkins, private communication
2 Veron-Cetty and Veron 1993
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Byte-by-byte Description of file: f295
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Bytes Format Units Label Explanations
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2- 3 I2 h RAh Right ascension (1950)
5- 6 I2 min RAm Right ascension (1950)
8- 12 F5.2 s RAs Right ascension (1950)
14 A1 --- DE- Declination sign
15- 16 I2 deg DEd Declination (1950)
18- 19 I2 arcmin DEm Declination (1950)
21- 24 F4.1 arcsec DEs Declination (1950)
26- 30 F5.2 mag Bjmag Bj magnitude
32- 36 F5.2 mag U-Bj U-Bj colour index
38- 42 F5.2 mag Bj-V' []? Bj-V' colour index
44- 48 F5.2 mag Bj-OR Bj-OR colour index
50- 52 A3 --- Ident Identification class: see Note (1) in f287
53 A1 --- u_Ident [:] Uncertainty flag on identification
55- 59 F5.3 --- z []? Redshift
61- 63 I3 --- Overl []? Overlapping field number in the case the
object is in common with an other field
65 I1 --- Refer [1,2]? Reference: see Note (2) in f287
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Byte-by-byte Description of file: f351
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Bytes Format Units Label Explanations
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2- 3 I2 h RAh Right ascension (1950)
5- 6 I2 min RAm Right ascension (1950)
8- 12 F5.2 s RAs Right ascension (1950)
14 A1 --- DE- Declination sign
15- 16 I2 deg DEd Declination (1950)
18- 19 I2 arcmin DEm Declination (1950)
21- 24 F4.1 arcsec DEs Declination (1950)
26- 30 F5.2 mag Bjmag Bj magnitude
32- 36 F5.2 mag U-Bj U-Bj colour index
38- 42 F5.2 mag Bj-V []? Bj-V colour index
44- 48 F5.2 mag Bj-OR Bj-OR colour index
50- 52 A3 --- Ident Identification class: see Note (1) in f287
54- 58 F5.3 --- z []? Redshift
60- 62 I3 --- Overl []? Overlapping field number in the case the
object is in common with an other field
64 I1 --- Refer [1,2]? Reference: see Note (2) in f287
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Byte-by-byte Description of file: f534
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Bytes Format Units Label Explanations
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2- 3 I2 h RAh Right ascension (1950)
5- 6 I2 min RAm Right ascension (1950)
8- 12 F5.2 s RAs Right ascension (1950)
14 A1 --- DE- Declination sign
15- 16 I2 deg DEd Declination (1950)
18- 19 I2 arcmin DEm Declination (1950)
21- 24 F4.1 arcsec DEs Declination (1950)
26- 30 F5.2 mag B'mag B' magnitude
32- 36 F5.2 mag U-B' U-B' colour index
38- 42 F5.2 mag B'-V' B'-V' colour index
44- 48 F5.2 mag B'-R []? B'-R colour index
50- 51 A2 --- Ident Identification class: see Note (1) in f287
52 A1 --- u_Ident [:] Uncertainty flag on identification
54- 58 F5.3 --- z []? Redshift
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Byte-by-byte Description of file: fsa94
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Bytes Format Units Label Explanations
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2- 3 I2 h RAh Right ascension (1950)
5- 6 I2 min RAm Right ascension (1950)
8- 12 F5.2 s RAs Right ascension (1950)
14 A1 --- DE- Declination sign
15 I1 deg DEd Declination (1950)
18- 19 I2 arcmin DEm Declination (1950)
21- 24 F4.1 arcsec DEs Declination (1950)
26- 30 F5.2 mag Bjmag Bj magnitude
32- 36 F5.2 mag U-Bj U-Bj colour index
38- 42 F5.2 mag Bj-V' []? Bj-V' colour index
44- 48 F5.2 mag Bj-R []? Bj-R colour index
50- 52 A3 --- Ident Identification class: see Note (1) in f 287
53 A1 --- u_Ident Uncertainty flag on identification
55- 60 F6.4 --- z []? Redshift
62 I1 --- Refer [1,2]? Reference: see Note (2) in f287
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Byte-by-byte Description of file: fsgp
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Bytes Format Units Label Explanations
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2- 3 I2 h RAh Right ascension (1950)
5- 6 I2 min RAm Right ascension (1950)
8- 12 F5.2 s RAs Right ascension (1950)
14 A1 --- DE- Declination sign
15- 16 I2 deg DEd Declination (1950)
18- 19 I2 arcmin DEm Declination (1950)
21- 24 F4.1 arcsec DEs Declination (1950)
26- 30 F5.2 mag Bjmag Bj magnitude
32- 36 F5.2 mag U-Bj U-Bj colour index
38- 42 F5.2 mag Bj-OR Bj-OR colour index
44- 46 A3 --- Ident Identification class: see Note (1) in f287
47 A1 --- u_Ident [:] Uncertainty flag on identification
50- 54 F5.3 --- z []? Redshift
56 I1 --- Refer [1,2]? Reference: see Note (2) in f287
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Reference:
Veron-Cetty M.-P., Veron P. 1993, ESO Sci. Rep., 13, 1 (Catalogue VII/166).
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(End) Simona Mei [CDS] 31-May-1995