J/ApJ/641/169 Spectroscopy in lens fields (Momcheva+, 2006)
A spectroscopic study of the environments of gravitational lens galaxies.
Momcheva I., Williams K., Keeton C., Zabludoff A.
<Astrophys. J., 641, 169-189 (2006)>
=2006ApJ...641..169M 2006ApJ...641..169M
ADC_Keywords: Clusters, galaxy ; Gravitational lensing ; QSOs ; Redshifts
Keywords: galaxies: clusters: general - galaxies: halos - gravitational lensing
- quasars: individual (MG 0751+2716, BRI 0952-0115, PG 1115+080,
B1422+231, MG 1654+1346, PMN J2004-1349, B2114+022, HE 2149-2745)
Abstract:
We present the first results from our spectroscopic survey of strong
gravitational lens environments. Six of the eight lens galaxies in our
sample belong to a poor group of galaxies, three of which are newly
discovered here (those associated with BRI 0952-0115, MG 1654+1346,
and B2114+022).
Description:
We first identified galaxies for follow-up spectroscopy from
two-color, wide-field imaging of each lens field. We obtained deep
images in I and either V or R during the period from 2002 May to 2004
June using the 36'x36' Mosaic Imager on the 4m telescopes at Kitt Peak
National Observatory and Cerro Tololo Inter-American Observatory.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 86 356 Lens field galaxy properties
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Field Lens field identification
9- 12 A4 --- --- [MWKZ]
14- 16 A3 --- --- [GAL]
18- 22 I5 --- ID Galaxy identification number (1)
24- 25 I2 h RAh Hour of Right Ascension (J2000)
27- 28 I2 min RAm Minute of Right Ascension (J2000)
30- 34 F5.2 s RAs Second of Right Ascension (J2000)
36 A1 --- DE- Sign of the Declination (J2000)
37- 38 I2 deg DEd Degree of Declination (J2000)
40- 41 I2 arcmin DEm Arcminute of Declination (J2000)
43- 46 F4.1 arcsec DEs Arcsecond of Declination (J2000)
48- 51 F4.2 arcmin b Projected distance from the lens
53- 56 F4.1 mag Imag The I band aperture magnitude (2)
58- 63 I6 km/s cz Heliocentric radial velocity
65- 67 I3 km/s e_cz Error in cz
69- 75 F7.5 --- z Redshift
77- 84 F8.6 --- e_z Error in z
86 I1 --- n_z Emission or absorption velocity (3)
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Note (1): In Simbad:
MWKZ MITG J0751+2716 GAL NNNNN, for field = MG0751;
MWKZ BRI B0952-0115 GAL NNNNN, for field = BRI0952;
MWKZ PG 1115+080 GAL NNNNN, for field = PG1115;
MWKZ QSO B1422+2309 GAL NNNNN, for field = B1422;
MWKZ MITG J1654+1346 GAL NNNNN, for field = MG1654;
MWKZ PMN J2004-1349 GAL NNNNN, for field = PMN2004;
MWKZ CLASS B2114+022 GAL NNNNN, for field = B2114;
MWKZ HE 2149-2745 GAL NNNNN, for field = HE2149.
Note (2): Within a fixed physical size of ∼6.5kpc
(see Williams et al. 2006ApJ...646...85W 2006ApJ...646...85W).
Note (3): Method from which the velocity was obtained, defined as follows:
1 = absorption lines;
2 = emission lines;
3 = combination of absorption and emission lines.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 17-Sep-2008