J/MNRAS/266/317 Quasars in ESO/SERC field 927 (Clowes+, 1994)
Observations of quasars in ESO/SERC field 927
CLOWES R.G., CAMPUSANO L.E.
<Mon. Not. R. Astron. Soc. 266, 317 (1994)>
=1994MNRAS.266..317C 1994MNRAS.266..317C (SIMBAD/NED Reference)
ADC_Keywords: Regional catalog; QSOs; Spectroscopy; Positional data;
Magnitudes; Redshifts; Equivalent widths
Keywords: galaxies: clustering - quasars: absorption lines -
quasars: emission lines - quasars: general -
large-scale structure of Universe.
Abstract:
We present the spectroscopic observations of 56 quasars that were discovered
by AQD (Automated Quasar Detection) in a field of ∼25.3deg2, centred at
(1950) RA l0h40m00s, Dec. 05deg00'00". These observations, with the CTIO 4-m
telescope, led to the discovery by Clowes & Campusano of a large group of
quasars with size ∼100-200h-1Mpc at z∼1.3. Quasars of particular
interest are noted, including one that is a BAL quasar with z∼1.78.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1 109 56 A summary of the observations of the 56
candidates that were confirmed as quasars.
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Byte-by-byte Description of file: table1
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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- 11 F4.1 s RAs Right ascension (1950)
13- 14 I2 deg DEd Declination (1950)
16- 17 I2 arcmin DEm Declination (1950)
19- 20 I2 arcsec DEs Declination (1950)
22- 23 I2 h RA2000h Right ascension (2000)
25- 26 I2 min RA2000m Right ascension (2000)
28- 31 F4.1 s RA2000s Right ascension (2000)
32 A1 --- DE2000- Declination sign
33- 34 I2 deg DE2000d Declination (2000)
36- 37 I2 arcmin DE2000m Declination (2000)
39- 40 I2 arcsec DE2000s Declination (2000)
42- 55 A14 --- Date Date of observation
57- 60 I4 s Int Integration time
62 A1 --- Band [SW] Band (1)
64- 68 F5.2 mag Bj []? Bj magnitude
70- 74 F5.3 --- z redshift
76- 78 I3 0.1nm EW Equivalent width
81 I1 --- n_EW Note on equivalent width (2)
84-113 A30 --- Com Comments
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Note (1): 'S' for strong-lined, 'W' for weak-lined
Note (2): Identification of strongest emission lines:
(1) Ly-alpha lambda 1216 +Nv lambda 1240;
(2) C IV lambda 1549;
(3) C III lambda 1909;
(4) Mg II lambda 2798.
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References:
Clowes R.G., Campusano L.E., 1991, MNRAS, 249, 218
Historical Notes: Keypunched at CDS
(End) James Marcout, Patricia Bauer [CDS] 14-Feb-1995